Epson Action Laser 1600 Service

EPSON®

Service Manual

ActionLaserTM 1600

Epson America, Inc. TM-AL1600

ActionLaserTM1600

Service Manual

R e v i s i o n L e v e l

Revision Date

1st printing 6/3/94

EPSON®

Printed on Recycled Paper.

F C C C o m p l i a n c e S t a t e m e n t

For American Users

This equipment has been tested and found to comply with limits for a Class B digital device

pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio or television reception. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause interference to

radio or television reception, which can be determined by turning the equipment on and off, the user

is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from the one connected to the receiver

For Canadian Users

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital

apparatus as set out in the radio interference regulations of the Canadian Department of

Communications.

Le présent appareil numérique n’èmet pas de bruits radioélectrique dépassant les limites applicable

aux appareils numériques de Classe B prescribes clans le règlement sur le brouillage radioélectriques

édicté par le Ministère des Communications du Canada.

Caut ion

The connection of a non-shielded equipment interface cable to this equipment will invalidate the

FCC Certification of this device and may cause interference levels which exceed the limits

established by the FCC for this equipment. It is the responsibility of the user to obtain and use a

shielded equipment interface cable with this device. If this equipment has more than one interface

connector, do not leave the cables connected to unused interfaces.

Changes or modifications not expressly approved by the manufacturer could void the user’s

authority to operate the equipment.

ii EPSON ActionLaser 1600 Service Manual

P r e c a u t i o n s

Precautionary notations throughout the text are categori1. personal injury2. damage to equipment.

W a r n i n g

zed relative to

Signals a precaution which, if ignored, could result in serious or fatal personal injury.Great caution should be exercised in performing procedures preceded by a Warningheading.

Cau t ion

Signals a precaution which, if ignored, could result in damage to equipment. I

The precautionary measures itemized below should always be observed whenperforming repair/maintenance procedures.

W a r n i n g

1. Always disconnect the product from both the power source and host computerbefore performing any maintenance or repair procedure.

2. No work should be performed on the unit by persons unfamiliar with basic safetymeasures dictated for all electronics technicians in their line of work.

3. In performing testing described in this manual, do not connect the unit to a powersource until instructed to do so. When the power supply cable must be connected,use extreme caution in working on the power supply and other electronic component

Cau t ion

l. Repairs on EPSON products should be performed only by an EPSON-certifiedrepair technician.

2. Make certain that the source voltage is the same as the rated voltage listed on theserial number/rating plate. If the EPSON product has a primary AC rating differentfrom the available power source, do not connect it to the power source.

3. Always verify that the EPSON product has been disconnected from the powersource before removing or replacing printed circuit boards and/or individual chips.

4. To protect sensitive µP chip and circuitry, use static discharge equipment,such as anti-static wrist straps, when accessing internal components.

5. Replace malfunctioning components only with those components recommended bythe manufacturer; introduction of second-source ICs or other nonapprovedcomponents may damage the product and void any applicable EPSON warranty.

iv EPSON ActionLaser 1600 Service Manual

Handy Numbers for U.S. Dealers

The EPSON Connection (800) 922-8911EPSON Faxback System (310) 782-4214EPSON Bulletin Board System (310) 782-4531

Numbers and Locations for Dealers Outside the U.S.

Epson Canada, Ltd. Epson Latin America, Inc.Willowdale, Ontario Miami, FLPhone: (800) GO-EPSON Phone: (305) 265-0092Fax: (416) 498-4574 Fax: (305) 265-0097

Epson Do Brazil Epson Chile S.A.Sao Paulo, Brazil Providencia, Santiago, ChilePhone: (55) (n) 813-3044 Phone: (562) 232-8966Fax: (55)(11)210-9290 Fax: (562) 233-3197

Epson Argentina S.A. Epson Costa RicaBuenos Aires, Argentina San Jose, Costa RicaPhone: (541) 394-2439 Phone: (506) 34-6666Fax: (541) 322-4637 Fax: (506) 25-5709

Epson Mexico S.A. De C.V. Epson Venezuela S.A.Mexico, D.F. Caracas, VenezuelaPhone: (525) 395-9897 Phone: (582) 241-0433Fax: (525) 395-9499 Fax: (582) 241-6515

EPSON ActionLaser 1600 Service Manual v

Chapter 1. Printer Features

Contents

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-8Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-10Reliability Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-10Environmental Conditions for Operation(Including Imaging Cartridge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-11Environmental Conditions for Storage and Transportation(Excluding Imaging Cartridge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-11Applicable Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-12Specifications for imaging Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-12Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-13Software Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-13Font Symbol Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-16Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-18

Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-18Compatibility Mode for Parallel Interface . . . . . . . . . . . . . . . . . . 1-18Reverse Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-20

Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-25Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-27Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-27Optional LocalTalk Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-27

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-29

Ser

Pr i

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-29Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-29Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-30Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-31SelecType Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-32

vice Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-36Hexadecimal Dump Mode.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-36Language Setting Mode..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-36Message Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-37Warning Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-39nter Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-40Port Fixed Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-40Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-41

Emulation Mode Switch Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-41Bi Resolution Improvement Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-43Optional Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-44Main Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-45

C125 MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-46Optional LocalTalk Module... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-47Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-48PWB-A Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-49

EPSON ActionLaser 1600 Service Manual 1-1

Printer Features

PWB-E Board . . . . . . . . . . . . . . . . . . . . . . . . . ...1-49PWB-F Board . . . . . . . . . . . . . . . . . . . . . . . . . ...1-50Optical Unit . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-50Fusing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-51Drive Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-51Imaging Cartridge . . . . . . . . . . . . . . . . . . . . . ...1-52Lower Paper Cassette . . . . . . . . . . . . . . . . . . ...1-52Face-Up Output Tray . . . . . . . . . . . . . . . . . . ...1-53

F i g u r e s

Figure 1-1. Exterior View of the Action Laser 1600 . . . . . . . . . . . . . . . 1-6Figure l-2. Printable Area... . . . . . . . . . . . . . ...1-9Figure l-3. Compatibility Mode Signal Timing. . . . . . . . . 1-18Figure l-4. Parallel Interface State Switch Diagram. . . . . . . . . . 1-22Figure l-5. Timing Chart for Negotiation. . . . . . . . . . . . . . . . . . 1-23Figure l-6. Timing Chart for Data Transfer . . . . . . . . . . . . . . . . 1-23Figure l-7. Timing Chart for Termination . . . . . . . . . . . . . . . . . ...1-24Figure l-8. Timing Chart for Interrupt . . . . . . . . . . . . . . . . ...1-24Figure l-9. Control Panel.... . . . . . . . . . . . . . . . . . . . . . ...1-29Figure l-l0. Port Fixed Mode. .. . . . . . . . . . . . . . . . . . . ...1-40Figure l-11. Auto Sense Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-41Figure l-12. Emulation Switch by SPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-42Figure l-13. Intell igent Emulation Switch . . . . . . . . . . . . . . .1-42Figure l-14. Effects of BiRITech . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-43Figure l-15. RITech Adjustment . . . . . . . . . . . . . . . . . . . ...1-43Figure l-16. Component Layout .. . . . . . . . . . . . . . . . ...1-45Figure l-17. C125 MAIN Board. . . . .. . . . . . . . . . . . ...1-46Figure l-18. LocalTalk I/F Board . . . . . . . . . . . . . . . . . . . . ...1-47Figure l-19. Control Panel... . . . . . . . . . . . . . . . . . . ...1-48Figure l-20. PWB-A Board . . . . . . . . . . . . . . . . . . . ...1-49Figure l-21. PWB-E Board... . . . . . . . . . . . . . . . . . . . ...1-49Figure l-22. PWB-F Board... . . . . . . . . . . ...1-50Figure l-23. Optical Unit.... . . . . . . . . . . . ...1-50Figure l-24. Fusing Unit.... . . . . . . . . . . . ...1-51Figure l-25. Drive Unit..... . . . . . . . . . . . . . . . . ...1-51Figure l-26. Imaging Cartridge. . . . . . . . . . . . . . . . ...1-52Figure l-27. Lower Paper Cassette . . . . . . . . . . . . . . ...1-52Figure l-28. Face-Up Output Tray . . . . . . . . . . . . . . . ...1-53

1-2 EPSON ActionLaser 1600 Service Manual

Printer Features

T a b l e s

Table 1-1.Table 1-2.Table 1-3.Table 1-4.Table 1-5.Table 1-6.

Table 1-7.Table 1-8.Table 1-9.Table 1-10.Table 1-11.Table 1-12.Table 1-14.Table 1-15.Table 1-16.

Options for the ActionLaser 1600... . . . . . . . . . . . . . . . . . . . ...1-7Paper Feed Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-8Paper Types . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9Special Papers . . . . . . . . . . . . . . . . . . . . . . ...1-9Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . 1-10Differences between EPSON GL/2 andHPLaserJet ® 4 Emulation GL/2 . . . . . . . . . .. ..1-14Built-in Fonts . . . . . . . . . . . . . . . ...1-14Parallel Interface Pin Assignments. . . . . . . . . . . . . 1-19Parallel Interface Pin Assignments . . . . . . . . . . . . . . 1-21

Serial Interface Connector Pin Assignments . . . . . . . . . . . . 1-26LocalTalk Connector Pin Assignments . . . . . . . . . . . . 1-28SelecType Functions . . . . . . . . . . ..1-32Status Messages . . . . . . . . . . . . . ..1-37Error Messages . . . . . . . . . . . . . . ..1-38Warning Messages . . . . . . . . . . . ..1-39


Printer Features 1

The ActionLaser 1600 is a non-impact page printer that combines a semi-conductor laser with electro-photographic technology. The printer is small andlight, and features high-speed, high-resolution printing. Maintenance is veryeasy, as a result of various built-in diagnostic functions. The main features are:

No ozone

Printing speed — 6 pages per minute (PPM)

Resolution — 600/300 dots per inch (DPI)

Light weight — about 22 lb. (10 kg)

Small footprint

Easy maintenance

HP LaserJet® 4 emulation mode

45 scalable fonts built-in (compatible with 35 Intellifonts and 10 TrueType ®

fonts)

ES C/P 2 emulation

High-performance controller (the CPU is a 17.6 MHz SPARKlite MB86930)

Bi Resolution Improvement Technology (BiRITech) refines print quality byeliminating jagged edges from images and characters on 600 and 300 DPIprinting.

Optional EPSONScript Level 2 (PostScript® compatible) module

EPSON Micro Gray Technology (EMGTech) refines the gray scale prinlike 1200 DPI engine at EPSON Script Level 2 mode

Small and low cost optional LocalTalkTM interface module

2 MB RAM standard and up to 64 MB RAM with optional SIMMs

Bidirectional parallel interface

High-speed serial communication rate of 115.2K bps

High-speed parallel communication rate of about 400 KB/sec

A multi-user. multi-emulation mode

ting to


Printer Features

IES (Intelligent Emulation Switch) allows switching of the printer modebetween EPSON Script mode and another mode

SPL (Shared Printer Language) enables switching of the printer mode bycommand

The figure below shows an exterior view of the ActionLaser 1600.

1-6

Figure 1-1. Exterior View of the Action Laser 1600

EPSON ActionLaser 1600 Service Manual

Print Features

Table 1-1 lists the optional units available for the ActionLaser 1600.

Table 1-1. Options for the Action Laser 1600


Printer Features

Specifications

This section provides statistical data for the ActionLaser

Printing method:

Resolution:

Printing speed:

First print time (lett

Warm-up time:

e r ) :

1600.

Laser beam scanning and dry electro-photography

600/300 DPI

6 PPM (letter)

Less than 19 seconds (face-down output)Less than 20 seconds (face-up output)

Less than 35 seconds(at rated current and 73° F (23° C) temperature)

Table 1-2. Paper Feed Methods

Notes:1. lb. (ream weight) = 500 sheets of 17x 22 inch paper; 1 g/m2 = 0.2659763 lb.

2. Paper size range: width 3.63 to 8.5 inches (92 to 216 mm)length 5.85 to 14.0 inches (148.5 mm to 356 mm)


Printer Features

Table 1-3. Paper Types

Table 1-4. Special Papers

R: Reliable feeding and good image quality.P: Possible, but better avoided.I: Impossible.

Figure 1-2. Printable Area


Printer Features

Paper feed alignment and direction: Center alignment for all sizes

Paper ejection: Face down; face up (optional)

Output tray capacity: 100 sheets (face down)20 sheets (face up) (standard paper)

Printable area (standard paper): See Figure 1-2.

Note : The actual printable area depends on the printer mode.

Noise: Less than 35 dB(A) (standby)Less than 47 dB(A) (operating)

Ozone density:

Toxicity:

E l e c t r i c a l S p e c i f i c a t i o n s

Table 1-5.

Description

Less than 0.01 ppm

No toxicity exists in OPC, toner, or plasticmaterials

E lec t r i ca l Charac te r i s t i c s

Rating

Rated voltage I 100~12OVAC

Input voltage range 90~132 VAC

Rated frequency range 50~60 Hz

Input frequency range 47~63 Hz

P o w e r c o n s u m p t i o n Less than 500 W

Power consumption in Less than 30 Wstandby mode (without optional interface card and font cartridge

R e l i a b i l i t y S p e c i f i c a t i o n s

MPBF (Mean Prints Between Failures): Over 25,000 sheets

Note : MPBF indicates average number of pages printed before occurrence ofproblem requiring replacement or service.


Printer Features

MTBF (Mean Time Between Failures): 3000 power on hours (POH)Jam rate: 1 out of 2,000 sheets or less

(excluding multiple-sheet feeding)Feed failure: 1 out of 2,000 sheets or less

(excluding multiple-sheet feeding)Multiple paper feeds: 1 out of 500 sheets or lessPaper curl height: 30 mm (1.2 inches) or lessLeading edge bending (1 cm or more): 1 out of 1,000 sheetsMTTR (Mean Time To Repair): 30 minutes or lessDurability: 5 years or 180,0000 sheets

E n v i r o n m e n t a l C o n d i t i o n s f o r O p e r a t i o n( I n c l u d i n g I m a g i n g C a r t r i d g e )

Temperature: 50 to 95° F (10 to 35° C)

Humidity: 15 to 85% RH

Altitude: 2,500 m (8,200 feet) or lower

Allowable incline: Printer should be installed on a level plane.

Illuminance: 3,000 lux or less (must not be exposed todirect sunlight.)

Surrounding space: Printer must have at least 4 inches(100 mm) clearance on sides and rear.

E n v i r o n m e n t a l C o n d i t i o n s f o r S t o r a g e a n d T r a n s p o r t a t i o n( E x c l u d i n g I m a g i n g C a r t r i d g e )

Temperature: 32 to 95° F (0 to 35° C) over full storage term--4 to 131° F (--20 to 55° C) under extremeconditions (extremes allowable for up to 1/30 ofstorage term)Temperature variation must be 18° F (10° C)/hour or less

Humidity:

Drop test:

Vibration:

30 to 85 % RH over full storage term10 to 95 % RH under extreme conditions(extremes allowable for up to 1/30 of storageterm)

Clear to JIS Z0200-1987 Level 1

Vibration frequency 5 to 100 Hz and 100 to 5 HzAcceleration l G

directions 3 directions


Printer Features

Resistance toatmospheric pressure:

Storage term:

More than 613 mb

24 months (following date of manufacture)

A p p l i c a b l e S t a n d a r d s

Safe ty S tandards

120 VAC model: UL 1950, CSA 22.2 No. 950 Deviation 3

Safety Regulat ions (Laser Radiat ion)

120 VAC model: FDA (NCDRH) Class 1

E M I

120 VAC model: FCC Part 15 Subpart B Class B

O t h e r s

Toner: No effect human health. (OSHA-TSCA, EINECS)OPC: No effect human health. (OSHA)Ozone: Less than 0.01 mmp

other UL478 (5th edition)Materials: SWISS Environmental Law

(No CdS must be contained)

S p e c i f i c a t i o n s f o r I m a g i n g C a r t r i d g e

Life: 6,000 pages

Note : In continuous printing mode with letter paper at a 5% image ratio(black/white ratio). Life varies, depending on printing mode (continuousor intermittent) and/or image ratio.

Environmental Conditions for Storage and Transportation

Temperature: 32 to 86° F (0 to 30° C) over full storageterm--4 to 104° F (--20 to 40° C) under extremeconditions (extremes are allowable for up to1/30 of storage term)Temperature variations must be 18° F(10° C) /hour or less.

Humidity: 30 to 85 % RH over full storage term10 to 95 % RH under extreme conditions(Extremes are allowable for up to 1/30 ofstorage term)


Printer Features

Drop test:Vibration:Resistance toatmospheric pressure:Storage term:

P h y s i c a l S p e c i f i c a t i o n s

Dimensions:Printer:

With lower cassette:

With face-up tray:

With lower cassette andface-up tray:

Weight;

With lower cassette:With face-up tray:With lower cassette andface-up tray:

S o f t w a r e S p e c i f i c a t i o n s

Height 30.4 inches (76 cm)Same as printer

More than 740 mb18 months (following date of manufacture)

14.5 (W) x 18.0 (D) x 8.9 (H) inches368 (W) x 456 (D) x 226 (H) mm14.5 (W) x 18.9 (D) x 13.2 (H) inches368 (W) x 480 (D) x 336 (H) mm14.5 (W) x 24.9 (D) x 14.2 (H) inches368 (W) x 632 (D) x 360 (H) mm14.5 (W) x 25.9 (D) x 16.9 (H) inches368 (W) x 657 (D) x 430 (H) mm

Approximately 22 lb. (10 kg)(consumables, excluding all options)Approximately 28.3 lb. (12.8 kg)Approximately 22.3 lb. (10.1 kg)Approximately 28.6 lb. (12.9 kg)

Built-in modes: HP LaserJet® 4 emulation (PCL 5e)EPSON GL/2 mode (LJ4-GL/2 mode and GL-like mode)FX (FX-870/l170, LX-100) emulation modeESC/P2 ® (LQ-570/1070) mode

Note : EPSON GL/2 mode is similar to the GL/2 mode included in HPLaserJet ® 4 emulation. Table 1-6 shows the differences between EPSONGL/2 mode and the GL/2 mode in the HP LaserJet® 4 emulation. Whilein EPSON GL/2 mode, the operator can enter GL/2 mode without sendingthe ESC %#B (enter GL/2 mode) command. If the operator’s applicationsoftware cannot send the ESC %#B command, then use this mode.


Printer Features

Table 1-6. Differences between EPSON GL/2 andHP LaserJet 4 Emulation GL/2

Notes: EPSON GU2 mode has two operational modes: LJ4-GL/2 mode and a GL-like mode.

LJ4-GL2 mode emulates the GU2 mode in the HP LaserJet 4 emulation. The usercan print with software that supports the HP 7600 series plotter.

The GL-like mode features all the commands of the LJ4-GL/2 mode, plus a fewadditional commands. The GL-like mode emulates some of the HP-GL plotter (HP7475A, etc.) commands. If the application software uses unsupported commands forthe GL-like mode, print cannot be assured.

Optional modes: EPSON Script Level 2 (PostScript Level 2 emulation) mode

Auxiliary software: Hex dumpStatus sheetFont sample

Table 1-7. Built-in Fonts

Bitmap fonts


Printer Features

Table 1-7. Built-in Fonts (Con’t)


Printer Features

Table 1-7. Built-in Fonts (cont.)

HP LaserJet 4 Mode (Bitmap Fonts): 15 symbol sets

Roman-8 NorweglRoman Extension ItalianECM94-1 Swedis2ANSI ASCII UKFrench2 GermanLegal SpanishIBM-US IBM-DNPcMultilingual

HP LaserJet 4 Mode (Scalable Fonts): 34 symbol sets

Roman-8 NorweglItalian ECM94-1Swedis2 ANSI ASCIIUK French2German Legal8859-2 ISO SpanishPsMath 8859-9 ISOWiTurkish MsPublishingVeMath DeskTopMath-8 WiE.EuropePCTk437 WindowsPsText IBM-USIBM-DN McTextPCMultilingual VeInternationalVeUS PiFontPCE.Europe SymbolWiAnsi Wingdings


Printer Features

ESC/P 2 Mode: 15 International Characters and 9 Code Tables

USA SPAINFRANCE JAPANGERMANY NORWAYUK DENMARK2DENMARK SPAIN2SWEDEN LATIN AMERICAITALY KOREA

LE GAL

PCUSA (437) PCTurk2 (857)PCMultilingual (850) PCE.Europe (852)PCPortuguese (860) BpBRASCIIPCCanFrench (863) BpAbicompPCNordic (865) Italic

FX Mode: 13 International Characters and 9 Code Tables

USA SPAINFRANCE JAPANGERMANY NORWAYUK DENMARK2DENMARK SPAIN2SWEDEN LATIN AMERICAITALY

PCUSA (437) PCTurk2 (857)PCMultilingual (850) PCE.Europe (852)PCPortuguese (860) BpBRASCIIPCCanFrench (863) BpAbicompPCNordic (865) Italic


Printer Features

Interface Specifications

The ActionLaser 1600 is equipped with the following external interfaces:

Parallel interfaceRS-232C/RS-422 interfaceOptional EPSONTalk interface for the MacintoshOptional Type B interface

Paral le l Inter face

The parallel interface has the following two modes:

Compatibility mode (same as parallel interface for current EPSON page printer)Reverse mode

Compatibi l i ty Mode for Paral lel Interface

System: STROBE synchronization, 8-bit parallel data transfer

Handshaking: BUSY and ACKNOWLEDGE signals

Connector type: P90-25027-1 (Amphenol) receptacle

Applicable plug: 57-30360 (Amphenol or equivalent)

Transfer speed: About 400,000 bytes/second (max.)

Figure 1-3. Compatibility Mode Signal Timing


Printer Features

Table 1-8. Parallel Interface Pin Assignments

Pin SignalNo. Name

I/O Description

1 STROBE IN STROBE is the pulse used to read data from the hostcomputer. Pulse width must be more than 0.5 µsec.Normally it is HIGH, and data is latched at the trailingedge of this signal.

2-9 DATA 1-8 IN DATA 1 to 8 are parallel data bits. When the signal isHIGH, the data bit is 1, and when it is LOW, the data bitis 0. The most significant bit (MSB) is DATA 8. Thesignal state must be maintained for 0.5 µsec. on eitherside of the STROBE signal’s active edge.

10 ACKNLG OUT ACKNLG is the acknowledge pulse, with an approximatewidth of 1 or 10 µsec. This signal goes LOW when datareception is completed, indicating the printer can acceptnew data. Timing with the BUSY signal is specifiedthrough SelecType.

11 BUSY OUT The BUSY signal informs the host computer of the printerstate. When the signal is HIGH, the printer cannotaccept data.

12 PE OUT PE indicates paper empty for the standard cassette,selected by SelecType or command, or for the optionalpaper cassette. Paper empty is indicated by HIGH.

13 SLCT OUT Pulled up to +5 V through a 1.0K-ohm resistor.

14 AUTO-FEED IN Not used.

15 NC — Not used.

16 GND — Logic ground level.

17 CHASSIS — Connected to the printer chassis. The printer chassisGND GND and the signal GND are connected to each other.

18 NC — Not connected.

19-30 GND — Ground level for the twisted pair return signal.

31 INIT IN The STROBE signal is ignored when this signal is LOW.

32 ERROR OUT This level goes LOW when the printer is:Ž out of paperŽ paper jamŽ in error stateŽ off line

33 GND — Same as for pins 19 to 30.

34 NC — Not used.

35 +5 — Pulled up to +5 V through 1.0K-ohm resistance.

36 SLCT IN — Uses reverse mode


Printer Features

Reverse Mode

In the reverse mode, the ActionLaser 1600 supports the IEEE-P1284 nibble mode.This mode allows the printer to inform the host computer of printer status, usingEJL and PJL commands.

System: IEEE-P1284 nibble mode

Connector type: P90-25027-1 (Amphenol) receptacle

Applicable plug: 57-30360 (Amphenol or equivalent)


Printer Features

Table 1-9. Parallel Interface Pin Assignments

Pin SignalNo. Name

I/O Description

1 STROBE IN HostClk: This signal is the strobe pulse used to readrequest extension values from the host computer duringnegotiation.

2-9 DATA 1-8 IN These signals are the data bits for the request extensionvalues during negotiation. The printer supports followingvalues:0000 0100: Request Device ID (in nibble mode sending)0000 0000: Request nibble mode.

10 ACKNLG OUT PtrClk: Printer clock for data sending.

11 BUSY OUT PtrBusy: The printer sends data bits 3 and 7 during datatransfer to host computer.

12 PE OUT AckDataReq: The printer sends data bits 2 and 6 duringdata transfer to host computer.

13 SLCT OUT Xflag: The printer sends data bits 2 and 6 during datatransfer to host computer.

14 AUTO-FEED IN HostBusy: This signal informs the printer of the hostcomputer’s state. When the signal is HIGH, the hostcomputer cannot accept data.

15 NC — Not used.

16 GND — Logic ground level.

17 CHASSIS — Connected to the printer chassis. The printer chassisGND GND and the signal GND are connected to each other.


19-30 GND — Ground level for the twisted pair return signal.

31 INIT IN nlnit: Fixed to the HIGH level

32 ERROR OUT nDataAvail: Printer sends data bits 0 and 4 during datatransfer to host computer.

33 GND — The same as for pins 19 to 30.

34 NC — Not used.

35 +5 — Pulled up to +5 V through 1.0K-ohm resistance.

36 SLCT IN IN 1284Active: If this signal is set to HIGH, the printer isactive P1284 (reverse mode).


Printer Features

Figure 1-4 shows the parallel interface state switch diagram.

Figure 1-4. Parallel Interface State Switch Diagram


Printer Features

The figure below shows the timing chart for negotiation.

Figure 1-5. Timing Chart for Negotiation

1 The signal is set to HIGH when no data is being sent.The signal is set to LOW during sending of data.

2. The signal is set to HIGH, if the extension request value was 04h3. HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available

The figure below shows the timing chart for data transfer.

Figure 1-6. Timing Chart for Data Transfer

Notes: 1. This signal set to HIGH when no data is being sentThis signal set to LOW during sending of data.

2. This signal set to HIGH, if the extension request value was 04h.3. HB DA: Host Busy Data Available

HB DNA: Host Busy Data Not Available


Printer Features

The figure

Notes: 1.

2.

3.

The figure

below shows the timing chart for termination.

Figure 1-7. Timing Chart for Termination

The signal is HIGH for HB DNA.The signal is LOW for HB DA.The signal is set to HIGH, if the extension request value was 04 h.Idle = LOW

below shows the timing chart for an interrupt.

Figure 1-8. Timing Chart for Interrupt

Note: The signal is set to HIGH, if the extension request value was 04h.


Printer Features

Ser ia l Inter face

Type:

Transfer system:

Synchronization

Protocol:

Transfer speeds:

Errors:

RS-232C/RS-422

Full duplex

Asynchronous start-stop systemStart-bit: 1 bitStop-bit: 1 or 2 bitsData length: 7 or 8 bitsParity: Odd, even, or none

X-ON/X-OFF (can be combined with DTR control)DTR control (can be combined with X-ON/X-OFF)

300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, or115200 bps

Overrun error: Processed as missing data and replaced by anasterisk (*)

Parity error: Replaced by an asterisk (*)Framing error: Replaced by an asterisk (*)Breaking character: Ignored


Printer Features

Table 1-10. Serial Interface Connector Pin Assignments

PinNo.

1

2

3

4

5

6

7

8

9

10

11 to 17

18

19

20

21-25

Signal Name

CHASSIS-GNE

TXD

RXD (RXD+)

RTS

CTS

DSR

SIGNAL-GND

DCD

(SD+)

(SD)

NC

(RD)NC

DTR

NC

I/O

OUT

IN

OUT

IN

IN

IN

OUT

OUT

IN

OUT

—

Description

Connected to the printer chassis. The printer’s chassisGND and signal GND are connected to each other.

Serial ASCII data output by printer. Maintains MARKstate (LOW level) between transmitted character codes.Logic 0 is HIGH (SPACE) and logic 1 is LOW (MARK).

Serial ASCII data input to the printer. Maintains MARKstate (LOW level) between received character codes.

Transmission request signal output from the printer.Always at HIGH level during power ON.

Always ignored

Signal input to printer. The printer can transmit data byTXD while DSR is HIGH. X-ON/X-OFF, however, can betransmitted regardless of the DSR state. Can always beset to be ignored with SelecType (factory setting).

Ground

Always ignored.

See Note 4,

See Note 4,

Not connected.

See Note 4,

Not connected,

Signal output by printer. When DTR is HIGH, the printercan receive the RXD signal. If SelecType settings do notspecify DTR control, the signal is HIGH while printerpower is on. When SelecType settings are used for DTRcontrol, DTR goes LOW for any errors. RXD data fromthe host computer must be stopped within 128characters after DTR goes LOW.

Not connected.

Notes: 1. Parentheses ( ) indicate a SelecType RS-422 signal

2. CTS, DSR, and DTR states can be selected through SelecType.

3. Although signals RTS, CTS, DSR, DTR, DCD are RS-232C signals, they can beused for RS-422 mode, if selected through SelecType.

4. SD+, SD:Serial ASCII data output from the printer. HIGH level: when SD+ voltage is higher than SD voltage.LOW level: when SD+ voltage is less than SD voltage.Logic 0 is SPACE and logic 1 is MARK; MARK state must be maintained betweentransmitted character codes.


Printer Features

RD+, RD:Serial ASCll data input from the computer. HIGH level: when RD+ voltage is higher than RD voltage.LOW level: when RD+ voltage is less than RD voltage.Logic 0 is SPACE and logic 1 is MARK; MARK state must be maintained betweentransmitted character codes.

Handshaking

When the vacant area for data in the input buffer drops to 256 bytes, the printeroutputs an X-OFF code or sets the DTR signal level to LOW, indicating that theprinter cannot receive more data. Once the vacant area for data in the bufferrecovers to 512 bytes, the printer outputs an X-ON code or sets the DTR flag toHIGH, indicating that printer is again ready to receive data.

Protocols

There are three types of protocols, as listed below, and each of them can bedesignated by SelecType independently.

DTR/DSR protocol

SelecType is used to execute the DTR/DSR control protocol. The DTR signal is setto HIGH when the printer is ready to receive data, and to LOW when conditionsindicate an error or that the receiving buffer is full.

When the error is cleared and the printer returns on line, the signal returns toHIGH. When SelecType is used to set the DTR control OFF, DTR is always setHIGH. The printer transmits TXD only when DSR is at the HIGH level (DSR isalways considered HIGH when the SelecType setting for DSR is OFF).X-ON/X-OFF transmission is independent from the DSR state.

X-ON/X-OFF (DC1/DC3) protocol

SelecType is used to execute X-ON/X-OFF protocol. The X-OFF (DC3) code isoutput if status indicates an error, and the printer warns the host to stop datatransmission within 128 characters. No further X-OFF codes are sent in responseto additional data received from the host after the X-OFF code has been sent once.The X-ON (DC1) code is output after all conditions given in error are cleared.

When the remaining capacity of the receive buffer reaches 256 characters, X-OFF(DC3) is output once. It is sent only once, even if there are multiple errors. Theprinter goes on line automatically at power on, and outputs an X-ON code.Transmission of X-ON/X-OFF codes can be defined by SelecType.

Optional Loca lTalk Inter face

This printer can use the optional LocalTalk interface module.

Type: LocalTalk

Signal level: Same as RS-422 signal level


Printer Features

P r o t o c o l : X-ON/X-OFF (cannot be combined with DTR control)DTR control (cannot be combined with X-ON/X-OFF)

Transfer speed: 230.4K bps

Table 1-11. LocalTalk Connector Pin Assignments

Pin SignalNo. Name

I/O Description

1 DTR OUT Output by the printer. When DTR is HIGH, it indicates theRXD signal can be received by the printer.

2 CTS IN The printer transmits the data by TXD while CTS is HIGH.

3 TXD OUT Serial ASCII data output from the printer. HIGH level: when SD voltage is higher than SD voltage.LOW level; when SD voltage is less than SD voltage.Logic 0 is SPACE and logic 1 is MARK. MARK must bemaintained between transmitted character codes.

4 GND — Ground

5 RXD IN Serial ASCII data input from the computer.HIGH level: when RD+ voltage is higher than RD voltage.LOW level: when RD+ voltage is less than RD voltage.Logic 0 is SPACE and logic 1 is MARK; MARK state mustbe maintained between transmitted character codes.

6 TXD+ OUT Refer to TXD


8 RXD+ IN Refer to RXD.


Printer Features

Operating Instructions

This section describes the functions performed through the control panel, such asprinting test, hexadecimal dump, and SelecType.

C o n t r o l P a n e l

The control panel gives you easy access to most common printer operations. Thepanel consists of a liquid crystal display (LCD), indicator lights, and buttons.

Figure 1-9. Control Panel

Display

A 20-character (5 x 7 dot matrix) by l-row liquid crystal display (LCD) thatindicates printer status.


Printer Features

Indicator Lights

On Line

ON: Communication possible with the host.

OFF: Communication with the host is not possible.

Flashing: The system cannot shift from offline to on line, or vice versa.

Form Feed

Indicates the data processing status for each interface channel: S, P, and O.

ON: Received data remains in the printer that has not been printed out.

OFF: No printable data remains in the printer.

Flashing: The printer is processing.

Continue

Flashes when an error is detected or a maintenance procedure is needed. An errormessage appears on the display at the same time.


Printer Features

Buttons

ONLINE

This button switches the printer between on line and off line. Also exits SelecTypemode, if the printer is in SelecType mode.

MANUAL (ON LINE + ALT)

This button lets you choose manual feed (the same as MANUAL FEED selectionin the SelecType PRINTING menu).

ITEM

PAPER SIZE(ITEM+ ALT)

MENU

TRAY SELECT(MENU+ ALT)

ALT

ENTER

FORM FEED

CONTINUE

RESET(CONTINUE + ALT)

Enters SelecType mode.Changes the ITEM in SelecType mode.

This button is a short cut for the paper size setting forstandard and optional trays in the SelecTypePRINTING menu.

Enters SelecType mode.Changes the MENU in SelecType mode.

This button is a short cut for the paper tray setting inthe SelecType CONFIG menu.

This button alternates the function of certain buttons.

Changes to next available option in SelecType.

Changes to previous available option in SelecType.

Sets available option in SelecType.

When the printer is offline and the Form Feed light islit, press this button to print data in the printer buffer.

Pressing this button when the Continue light isflashing clears an error.

Begins reset operation; the LCD displays RESET,printing stops, and the input buffer for the currentinterface clears. If the RESET button is held downcontinuously after RESET displays, the message on theLCD changes to RESET ALL (for about 5 seconds), andthe printer begins a warm boot operation. The printerclears all RAM.


Printer Features

S e l e c T y p e F u n c t i o n s

SelecType on the control panel lets users control most printer functions, such asprinting test pages, selecting paper size, and changing printer configuration.Enter SelecType by pressing the Menu or Item button.

Table 1-12. Selec Type Functions

MENU(Changed

ITEM Available Options(Changed with

with Menu(Changed with or button)

button)Item button) (Set with Enter button)

PRINTING COPIES 1 to 999

PAGE SIZE LT, LGL, HLT, GLT, GLG, EXE, F4, MON,C10, DL, C5, IB5, A4, A5, B5

ORIENTATION PORT, LAND

MANUAL FEED OFF, ON

RITech OFF, LIGHT, MEDIUM, DARK

LJ4 FONT SRC RESIDENT, CARTRIDGE, DOWNLOAD

FONT NUMBER 0 to (available)

PITCH 0.44 to 99.99 CPI (steps of 0.01)

HEIGHT 4.00 to 999.75 PT. (steps of 0.25)

SYMSET Roman-8, ECM94-1, 8859-2 ISO, IBM-US,IBM-DN, PCMultiling, PCE.Europe, PCTk437,WiAnsi, WiE.Europe, WiTurkish, DeskTop,PsText, Velnternati, VeUS, MsPublishin,Math-8, PsMath, VeMath,, PiFont, Legal, UK,ANSI ASCII, Swedis2, Italian, Spanish,German, Norweg 1, French2, Windows

FORM 5 to 128 lines

(SRC SYMSET) 0 to 3199

(DEST SYMSET) 0 to 3199

(PS) — —

ESCP2 FONT Courier, Prestige, Orator S, Roman-T, Saris-H

PITCH 10 CPI, 12 CPI, 15 CPI, Prop

CONDENSED On, Off

T. MARGIN 0.40 to 1.50 Inch (steps of 0.05)

TEXT 1 to (available) lines


Printer Features

Table 1-12. Selec Type Functions (Cont.)

MENU Item Available Options(Changed with (Changed with Item (Changed with or button)Menu button) button) (Set with Enter button)

ESCP2 (cont.) CG TABLE Italic, PCUSA, PCMultilin,PCPortugues, PCCanFrench,PCNordic, PCTurk2, PC. E. Europe,BpBRASCll, BpAbicomp

COUNTRY USA, France, Germany, UK, Denmak,Sweden, Italy, Spain 1, Japan,Norway, Denmark2, Spain2,LatinAmerica, Korea, Legal

AUTO CR ON, OFF

AUTO LF ON, OFF

ZERO CHAR 0, ø

BIT IMAGE Dark, Light, Bar Code

FX FONT Courier, Prestige, Orator S

PITCH 10 CPI, 12 CPI, 15 CPI, Prop

CONDENSED ON, OFF

T. MARGIN 0.40 to 1.50 inches (steps of 0.05)

TEXT 1 to (available) lines

CG TABLE Italic, PCUSA, PCMultilin,PCPortugues, PCCanFrench,PCNordic, PCTurk2, PC. E. Europe,BpBRASCll, BpAbicomp

COUNTRY USA, France, Germany, UK,Denmark, Sweden, Italy, Spain1,Japan, Norway, Denmark2, Spain2,LatinAmerica

AUTO CR ON, OFF

AUTO LF ON, OFF

ZERO CHAR 0,ø

BIT IMAGE Dark, Light, Bar Code


Printer Features


MENU Item Available Options(Changed with (Changed with (Changed with or button)Menu button) Item button) (Set with Enter button)

GL2 GLMODE LJ4GL2, GL like

SCALE OFF, A0, A1, A2, A3

ORIGIN CORNER, CENTER

PEN 0,1 ,2 ,3 ,4 ,5 ,6

END BUTT, SQUARE, TRIANGULAR, ROUND

JOIN MITERED, MITERED BEVELED,TRIANGULAR, ROUND, BEVELED,NONE

PEN0 0.05 to 5.00 mm (steps of 0.05)

PEN1 0.05 to 5.00 mm (steps of 0.05)

PEN2 0.05 to 5.00 mm (steps of 0.05)

PEN3 0.05 to 5.00 mm (steps of 0.05)

PEN4 0.05 to 5.00 mm (steps of 0.05)

PEN5 0.05 to 5.00 mm (steps of 0.05)

PEN6 0.05 to 5.00 mm (steps of 0.05)

JOB PAGE PROTECT OFF, LT, LGL, A4

RESOLUTION 300, 600

TIMEOUT 5 to 300

EMULATION PARALLEL LJ4, FX, ESCP2, (PS), GL2, (PS&LJ4),(PS&FX), (PS&ESCP2), (PS&GL2)

SERIAL LJ4, FX, ESCP2, (PS), GL2, (PS&LJ4),(PS&FX), (PS&ESCP2), (PS&GL2)

(L/T) LJ4, FX, ESCP2, (PS), GL2, (PS&LJ4),(PS&FX), (PS&ESCP2), (PS&GL2)

(AUX) LJ4, FX, ESCP2, (PS), GL2, (PS&LJ4),(PS&FX), (PS&ESCP2), (PS&GL2)

TRAY SIZE STD SIZE LT, HLT, LGL, GLT, GLG, EXE, F4, MON,C10, DL, C5, IB5, A4, A5, B5

(OPT SIZE) LT, A4


Printer Features


MENU Item Available Options

(Changed with (Changed with Item (Changed with or button)Menu button) button) (Set with Enter button)

CONFIG (STD TRAY) LOCK, UNLOCK

(OPT TRAY) LOCK UNLOCK

SIZE IGNORE OFF, ON

AUTO CONT OFF, ON

STANDBY DISABLE, ENABLE

DENSITY MEDIUM, DARK, DARKEST,LIGHTEST, LIGHT

AUTO SENSE ON, PARALLEL, SERIAL, (L/T), (AUX)

TOP OFFSET 0 to 99

LEFT OFFSET 0 to 99

TONER E**** *F, E**** F, E*** F,

E** F, E* F,

TONER LIFE 5000 to 9000

PAGE COUNT 0 to 99999999

SelecType INIT —

PARALLEL SPEED FAST, LOW

BI-D ON, OFF

SERIAL SERIAL TYPE RS232C, RS422

WORD LENGTH 8, 7

BAUD RATE 9600, 19200, 38400, 57600, 115200,300, 600, 1200, 2400, 4800

PARITY NONE, EVEN, ODD

STOP BIT 1,2

DTR ON, OFF

XON/XOFF ON, OFF

DSR ON, OFF


Printer Features


MENU Item Available Options(Changed with (Changed with Item (Changed with or button)Menu button) button) (Set with Enter button)

TEST STATUS SHEET —

LJ4 FONT SAMPLE —

ESCP2 FONT SAMPLE —

FX FONT SAMPLE —

FACT SHEET —

RITech TEST PAGE —

(PS STATUS SHEET) —

(PS FONT SAMPLE) —

(PS FACT SHEET) —

Service Mode

The printer has the following four service modes:

Hexadecimal Dump Mode Factory Service Mode

Language Sett ing Mode E E P R O M F o r m a t

Hexadecimal Dump Mode

Hexadecimal dump is useful in troubleshooting. Turn on the printer and the holddown On Line until HEX DUMP MODE displays on the LCD. To exit hexadecimaldump mode, turn the printer off or hold down the ALT + RESET buttons, until theRESET ALL message is displayed.

Language Setting Mode

Language setting mode sets the language for panel display and status sheets.Turn on the printer and hold down Menu until CONFIG LANGUAGE displays toindicate language setting mode. Scroll through available options with and buttons, and set the language with Enter. Available languages are:

ENGLISH, FRANÇAIS, DEUTCH, ITALIANO, ESPAÑOL, SVENSKA,DANSK, NEDERL., SUOMI, PORTUGUÊS


Printer Features

Message Display

This printer displays three types of messages on the LCD: status messages, errormessages, and power on messages.

Status Messages

The LCD panel normally indicates the printer’s status and software mode

Table 1-14. Status Messages

Message Status

SELF TEST internal self-test

RESET ALL Warm boot

RESET Resetting

RESET TO SAVE SelecType was changed while Feed light was on.Press the RESET button to reset.

WARMING UP Warming up

TONER LOW Detected toner low

STANDBY Power down mode

READY Normal condition


Printer Features

Error Messages

If any of the following errors occurs, it is displayed on the LCD panel. Clear theerror using the measures described in the following table.

Table 1-15. Error Messages

MEMOVERFLOW

ILLEGAL CART

INSERT CART

REMOVE CART

RAM ERROR(Note)

EEPROMERROR

SERVICE REQ.XXXXX

PAPER JAM

FEED JAM

PRINTER OPEN

PC INSTALL

MANUAL FEED

PAPER OUT

TONER OUT

PAPER SET

PRINTOVERRUN

Data has filled the buffer.

Unsupported cartridge inserted.

Cartridge was removed while Feedlight was on or printer was on line.

Cartridge was inserted while Feedlight was on or printer was on line.

Unsupported or damaged SIMM wasinserted.

EEPROM data error.

Printer problem.

A paper jam has occurred.

A paper jam has occurred during thefeed process.

Cover is open.

The optional lower cassette hasbeen selected, but is not connected.

Select manual feed.

No paper is left in either the standardor the optional cassette.

Over 25 pages printed afterdetection of toner low.

Paper in the selected tray is differentfrom the paper size selection.

Engine speed faster than print imageprocessing.

Confirm and press the CONTINUEbutton. Add optional SIMM.

Remove cartridge and pressCONTINUE.

Reinstall cartridge and pressCONTINUE button.

Remove cartridge and pressCONTINUE button.

Power off and then remove SIMM.

Press the CONTINUE button.

Service required.

Open cover and remove jammedpaper. Then close the cover.

Remove jammed paper. Then pressthe CONTINUE button.

Close the cover.

Power off.

Insert paper and press ON LINE.

Load the paper into paper tray oroptional cassette.

Replace the imaging cartridge.

Load the proper paper and pressCONTINUE, or simply pressCONTINUE.

Press the CONTINUE button.

Note : If the printer displays RAM ERROR 1 or RAM ERROR 2:RAM ERROR 1 indicates a problem with the SIMM inserted in SIMM socket CN8.RAM ERROR 2 indicates a problem with the SIMM inserted in SIMM socket CN9.


Printer Features

Warning Messages

The following warnings are displayed on the LCD panel.

Table 1-16. Warning Messages

Message Sta tus Measures

CHECK PAPER SIZE Paper in the selected tray is different Press the CONTINUE button.from the paper size chosen whenSIZE IGNORE is set to OFF.

IMAGE OPTIMUM Insufficient memory has caused the Press the CONTINUE buttonprinter to reduce print quality.


Printer Features

P r i n t e r S h a r i n g

This printer has two methods of printer sharing, which are selected with theSelecType AUTO SENSE menu.

Port Fixed Mode

Figure 1-10. Port Fixed Mode

When the printer is in port fixed mode, only one interface port is active. Datafrom other ports is ignored.


Printer Features

Auto Sense Mode

It is possible to allocate each mode to parallel, serial, L/T, and AUX. The entirememory will be allocated to the channels that are used. The interface thatreceives the data first will print first.

Figure 1-11. Auto Sense Mode

E m u l a t i o n M o d e S w i t c h F u n c t i o n

There are two types of emulation switch: emulation switch with shared printerlanguage (SPL) and intelligent emulation switch.

Emulation Switch with SPL

There are two SPLs that can be used to switch emulation functions.

EJL: EPSON Job Language

This is EPSON’s original language system. It allows you to skip among variousdestinations, as shown in Figure 1-12.


Printer Features

PJL: Printer Job Language

This is HP’s original language, which is available with the LaserJet 4 printer.It allows you to skip among various destinations, as shown in Figure 1-12. Theprecise specifications for this language are based on the HP LaserJet®4.

The figure below shows three types of mode switching.

Neither EJL nor PJL switches the mode directly. They firstand return to EJL or PJL. Then they enter another mode.

exit the current mode

Figure 1-12. Emulation Switch by SPL

Intelligent Emulation Switch

The Intelligent Emulation Switch (IES) automatically switches emulation modes,based on the data sent from the host computer through one of the interfacechannels. It is can switch between PostScript and other modes, as shown infigure below.

Figure 1-13. Intel l igent Emulat ion Switch

the


Printer Features

B i R e s o l u t i o n I m p r o v e m e n t T e c h n o l o g y

The ActionLaser 1600 uses BiRITech (Bi Resolution Improvement Technology),which is designed to improve print quality at 600 DPI and 300 DPI. This methodextracts dot map data from the image data and reassembles it to improve printdata.

The main improvement in this technique is eliminating “jaggies” in diagonal lines.It is most effective when the dot map data fits the development characteristics ofthe printer mechanism well. It is therefore necessary to set appropriate values inSelecType mode.

Figure 1-14. Effect of BiRITech

Note : BiRITech is not as effective for printing a mesh pattern or gray scale. Insuch cases, set BiRITech to OFF. (The default setting is MEDIUM.)Since the BiRITech effect depends on the toner condition, adjust it whenthe imaging cartridge is replaced or after the imaging cartridge is usedfor a long time.

The following settings are available in SelecType for RITech: DARK, MEDIUM,LIGHT, OFF. When the toner density of area A is almost the same as that of areaB (as shown in the figure below), it is the optimum setting. In other words, theoptimum setting is achieved when it is difficult to distinguish the shape of area Afrom that of B.

Figure 1-15. RITech Adjustment


Printer Features

O p t i o n a l M e m o r y

If you have difficulty printing complex, graphics-intensive pages or if youregularly use downloaded fonts, you may need to install optional SIMM sets onthis printer’s controller board. The printer’s controller board comes with 2MB ofRAM installed. By installing RAM chip sets, you can increase the printer’smemory to a total of 64 MB, including the resident memory.

EPSON supplies several types of memory options, or users can purchase otherSIMMs from other vendors. Be sure the SIMM meets the requirements listedbelow.

72-pin type

Capacity of one of the following: 1, 2, 4, 8, 16, 32MB

Access speed of less than 70ns.

Within the following dimensions1.42" (height) x 4.25" (width) x .39” (depth)36 mm (height) x 108 mm (width) x 10 mm (depth)


Printer Features

Main Components

To simplify maintenance and repair, the main components of the ActionLaser1600 are designed for easy removal and replacement. The main components are:

C125 MAIN Board Video controller circuit board Con t ro l Pane l P W B - A B o a r d Engine controller circuit board P W B - E B o a r d Power supply circuit board P W B - F B o a r d High voltage supply circuit board O p t i c a l U n i t Scanner and mirrors F u s i n g U n i t D r i v e U n i t Imag ing Car t r idge H o u s i n g

Figure 1-16. Component Layout


Printer Features

C125 MAIN Board

The C125 MAIN board is the video controller board, which functions to receiveprint data from host, generate the print image (video), and send the print image tothe engine controller via the video interface. A 32-bit, 17.6 MHz SPARKliteMB86930 RISC CPU is used in location IC1, and the following memory chips andcustom ICS are assigned to the 4GB memory space.

Memory chips

Code ROMs:four 4Mbit EPROMs (IC7, 8, 15, 18) ortwo 8Mbit mask ROMs (IC21, 22)

Font ROMs: two 8Mbit mask ROMs (M80A74: IC4; M80A75: IC5)4Mbit DRAMs (IC16, 17, 19, 20)16Kbit EEPROM (IC8)

Custom ICs

ASIC E05A91 (IC9)ASIC E05A92 (IC25)ASIC E05A93 (IC24)

Others

RS-232C interface driver/receiver ADM232 (IC28)RS-422 interface driver/receiver MC34050 (IC6)Reset IC M51953BFP (IC27)

Figure 1-17. C125 Main Board


Printer Features

O p t i o n a l L o c a l T a l k I n t e r f a c e M o d u l e

The LocalTalk interface circuit board connects this printer to Apple Macintoshcomputers.

Main Chips

85C30 (IC3)26LS30 (IC1)26LS32 (IC2)NJ U7660 (IC4)

Figure 1-18. LocalTalk I/F Board


Printer Features

C o n t r o l P a n e l

The control panel includes a 20-column x l-row LCD panel that displays errormessages or printer operation status.

1-48

Figure 1-19. Control Panel


Printer Features

P W B - A B o a r d

This is the engine controller board, which consists of an 8-bit M37451M4 CPU(including a MASK ROM) and a gate array. The board controls laser scanning(the mirror drive motor), image synchronization, laser beam pulse width, andpower.

Figure 1-20. PWB-A Board

P W B - E B o a r d

The PWB-E is the power supply board, which consists of a switching regulatorcircuit. It converts the AC line voltage into +24 V and +5 VDC voltages.

CAUTION

Do not touch VR1E on PWB-E board. This volume is for factory setting only.

Figure 1-21. P W B - E B o a r d


Printer Features

PWB-F Board

The PWB-F boarddevelopment bias,

is the high voltage supply circuit board. It converts theOPC drum charge bias, and image transfer bias.

Figure 1-22. PWB-F Board

Cau t ion

Do not touch VR1F and VR2F on the PWB-F board. These volumes are for factorysetting only.

O p t i c a l U n i t

The optical unit consists of the laser diode (semi-conductor laser), the scannermotor, which drives the scanner mirror for laser scanning, and several othermirrors and lenses. The laser beam generated by the laser diode is conducted tothe OPC drum surface by the scanner mirror, as well as several other mirrors andlenses, to create a latent electro-photographic image on the drum.

Figure 1-23. Optical Unit


Printer Features

F u s i n g U n i t

The fusing unit fixes the toner to the paper using heat and pressure. This unithas a heater lamp, thermistor, and thermal fuse.

Figure 1-24. Fusing Unit

D r i v e U n i t

The drive unit consists of the main motor and a series of gears and clutches. Itdrives the paper transport rollers, OPC drum, sleeve roller, fising roller, andsome other mechanisms.

Figure 1-25. Drive Unit


Printer Features

Imaging Cartridge

The core mechanisms of the printing process, such as charging, developing, andcleaning, are integrated into this imaging cartridge.

F i g u r e 1 - 2 6 . I m a g i n g C a r t r i d g e

Lower Paper Cassette

The optional lower paper cassette allows you to feed up to an additional 250sheets of A4 or letter-size paper into this printer.

1-52

Figure 1-27. Lower Paper Cassette


Printer Features

F a c e - U p O u t p u t T r a y

The face-up output tray is an optional tray useful for feeding single sheets ofpaper types, such as envelopes, transparencies, labels, or heavy paper. Theface-up feeding method reduces curling, and the tray catches the paper at thepaper ejection area at the top back of the printer.

Figure 1-28. Face-Up Output Tray


Printer Features


Principles of Operation

Contents

Engine Operation . . . . . . . . . . . . . . . . . . . . . ...2-5

Print Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-6Paper Feeding . . . . . . . . . . . . . . . . . . . . . . . ...2-7Multi-Purpose Tray (Standard Tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-8Lower Paper Cassette . . . . . . . . . . . . . . . . . ...2-9Drum Charge . . . . . . . . . . . . . . . . . . . . . . ...2-10Laser Exposure . . . . . . . . . . . . . . . . . . . . . ...2-11Development . . . . . . . . . . . . . . . . . . . . . . ...2-11Drum Cleaning . . . . . . . . . . . . . . . . . . . . ...2-12Image Transfer . . . . . . . . . . . . . . . . . . . . ...2-12Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-13

Paper Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-14Engine Control . . . . . . . . . . . . . . . . . . . . . . . . ...2-14

Main Motor Functions and Control . . . . ...2-15Paper Take-Up Sensor and Paper Exit Sensor . . . . . . . . . . . . . . . . 2-17Fuser Control . . . . . . . . . . . . . . . . . . . . . . ...2-18Scanner Mirror Motor Control. . . . . . . . ...2-19Laser Diode Drive . . . . . . . . . . . . . . . . . . . ...2-20Bias Voltages and Laser Drive Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-22Fan Motor-Control . . . . . . . . . . . . . .Power Supply Circuit Function and Safe-

V i d e o C o n t r o l l e r O p e r a t i o n .

C 1 2 5 M A I N B o a r d O p e r a t i o n .

2-25y Protection . . . . . . . . . . . . . . . . ...2-25

2-26

2-27Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . ...2-30Bus Control Circuit . . . . . . . . . . . . . . . . . . ...2-30Interrupt Control . . . . . . . . . . . . . . . . . . . ...2-31DRAM Management . . . . . . . . . . . . . . . . ...2-31Parallel Interface Circuit . . . . . . . . . . . . . ...2-32RS-232C Circuit . . . . . . . . . . . . . . . . . . . . ...2-32RS-422 Circuit . . . . . . . . . . . . . . . . . . . . . ...2-33LocalTalk Circuit . . . . . . . . . . . . . . . . . . . . ...2-33Optional Type-B Interface . . . . . . . . . . . ...2-34Video Interface . . . . . . . . . . . . . . . . . . . . . . ...2-34



F i g u r e s

Figure 2-1.Figure 2-2.Figure 2-3.Figure 2-4.Figure 2-5.Figure 2-6.Figure 2-7.Figure 2-8.Figure 2-9.Figure 2-10.Figure 2-11.Figure 2-12.Figure 2-13.Figure 2-14.Figure 2-15.Figure 2-16.Figure 2-17Figure 2-18Figure 2-19Figure 2-20Figure 2-21.Figure 2-22.Figure 2-23.Figure 2-24.Figure 2-25.Figure 2-26.Figure 2-27.Figure 2-28.Figure 2-29.Figure 2-30.Figure 2-31.Figure 2-32.Figure 2-33.Figure 2-34.Figure 2-35.Figure 2-36.Figure 2-37.Figure 2-38.Figure 2-39.Figure 2-40.Figure 2-41.Figure 2-42.Figure 2-43.Figure 2-44.

MainComponents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-5Diagram of the Print Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-6Paper Feeding from the Multi-purpose Tray 2-8Paper Feeding from the Lower Cassette . . . . . . . . . . . . . . . . . . . . . ...2-9Drurn Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-10Laser Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-11Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-11Image Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-12Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-13Engine Controller Connection Diagram . . . . . . . . . . . . . . . . . . . . 2-14Gear and Roller Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15PC Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15Developing Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15Fusing Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15Feeding Drive Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15Feeding Drive (Option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-15Main Motor Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-16Paper Take-up Sensor and Paper Exit Sensor On/Off Timing 2-17Fuser Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-18Fuser Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19Scanner Motor Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-19Scanner Motor Driving Start Timing . . . . . . . . . . . . . . . . . . . . . ...2-20Laser Diode Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-20LDATA Generation Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-21Laser Emission Power Adjustment Timing . . . . . . . . . . . . . . . . . . . 2-21Laser Diode Error Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-22High -Voltage Supply Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . 2-22Print Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-23Power On Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-23Print Sequence (Start) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-24Print Sequence (End) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-24Fan Motor Speed Control Timing. . . . . . . . . . . . . . . . . . . . . . . . ...2-25Fan Motor Malfunction Search Timing . . . . . . . . . . . . . . . . . . . . . . . 2-25Power Supply Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . ...2-25Video Controller Block Diagram.. . . . . . . . . . . . . . . . . . . . . . . . ...2-26C125MAIN Board Block Diagram. . . . . . . . . . . . . . . . . . . . . . . ...2-27Data Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-29Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-30Bus Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...2-30DRAM Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-31Parallel Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-32RS-232C Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-32RS-422 Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-33LocalTalk Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-33



T a b l e s

Table 2-l. Gears and Rollers . . . . . . . . . . ...2-16Table 2-2. Functions of the Major Components of the C125 MAIN Board 2-28


Principles of Operation 2

Engine Operation

This section describes the functions and operating principles of the ActionLaser1600 engine. Figure 2-1 shows the locations and names of the main enginecomponents.

1.2.3.4.5.6.7.8.9.101112131415

Figure 2-1. Main Components

Paper trayPaper guideOptical unitImaging cartridgeUpper lock release leverRoller coverThermistor (TH1)Face-down exit rollerUpper fising rollerHeater lamp (H1)Face-up/face down switching guideFace-up tray (option)Face-up exit rollerFusing separatorPaper exit sensor (PC3)

16. Lower fusing roller17. Toner empty sensor18. Cooling fan19. Image transfer roller20. Main motor (Ml)21. Lower paper cassette22. Paper take-up sensor23. Transport roller

(option)(PC2)

24. Transport roller (for option)25. Paper take-up roller26. Paper take-up roller (for option)27. Paper cassette (for option)28. Paper empty sensor (PC4) (for option)29. Paper empty sensor (PC1)



P r i n t P r o c e s s

This section describes the print process from paper feeding to paper exit. Figure2-2 shows a diagram of the print process.

Figure 2-2. Diagram of the Print Process



Paper Feed ing

There are two methods of feeding the paper into the printer. One is by using themulti-purpose tray (standard tray), and the other is by using the optional250-sheet lower paper cassette.

Paper-out conditions are detected by the paper empty sensor, located above thepaper tray or the cassette. While paper is in the tray or cassette, the detectionlever for the paper empty sensor is lifted. When the paper supply runs out, thedetection lever is lowered, causing the shutter to interrupt light from the LED tothe photo-transistor. This causes the signal to go HIGH, informing the enginedriver that the paper tray or the cassette is empty.

When the paper take-up solenoid is actuated, the paper take-up roller rotates andfeeds the first page. The paper take-up roller stops after one rotation. Unlike theEPL-7000/7500 and EPL-8000, which have a synchronizing roller, theActionLaser 1600 has no synchronizing roller installed. The timing to align theleading edge of the page with image is detected by the paper take-up sensor.

When a page is on top of the paper take-up sensor, the detection lever is lowered,allowing light from the LED to reach the photo-transistor. This causes the signalto go HIGH, informing the engine driver that paper has been detected.

The paper exit sensor is located beyond the fising roller in the paper path. Whenpaper passes the paper exit sensor, the detection lever is lowered, allowing lightfrom the LED to reach the photo-transistor. This causes the signal to go HIGH,informing the engine driver that paper has been delivered.



Multi-Purpose Tray (Standard Tray)

The paper guide can be moved to fit against the sides of various sizes of paper,allowing them to be fed.

Although the paper take-up roller stops after one rotation, the transport rollerscontinue to feed the first page, because these rollers are independent of the papertake-up roller. At this time, the depression cam attached to the paper take-uproller depresses the paper lift-up plate to prevent the feeding of a second sheet.

Figure 2-3. Paper Feeding from the Mult i-purpose Tray



Lower Paper Cassette

A maximum of 250 sheets can be loaded in the optional 250-sheet lower papercassette. The cassette must be capable of handling the paper size, however. (Thelower paper cassette unit can hold letter or A4 paper.)

The driving force for paper feeding andAll electrical controls are performed onconnector.

transport is from the transmission gear.the printer side through the coupling

Figure 2-4. Paper Feeding from the Lower Cassette



Drum Charge

Drum charge is the process of charging the PC drum with static electricity beforelaser exposure. This printer uses a brush charge method, rather than the coronacharge method, to charge the drum. In the brush charge method, there is nogeneration of ozone as a result of corona discharge. This method also allows thedrum to be charged at a low voltage, because a direct electric load is applied to thePC drum.

Figure 2-5. Drum Charge



Laser Exposure

Laser exposure is the process of creating an invisible static electric image on thePC drum with laser beams emitted from the optical unit. The mirror motor(scanner motor) rotates the six-sided mirror counterclockwise to produce a laserlight scan. (One side of the mirror produces one scan.) The SOS (start of scan)sensor detects the laser rays from the SOS mirror and outputs the SOS signals tomake the starting position of each line of the image uniform.

Figure 2-6. Laser Exposure

D e v e l o p m e n t

Development is the process of creating a toner image on the PC drum by applyingtoner to the invisible static electric image. The doctor blade spreads a thin, evencoat of toner over the flexible sleeve. When the toner passes between the doctorblade and the flexible sleeve, it becomes negatively charged. The flexible sleevetransports toner to the surface of the PC drum and controls the development withthe developing bias voltage.

No positivly charged toner is transported, and the doctor blade is charged toprevent printing from having a foggy background.

Figure 2-7. Development



Drum Clean ing

After the image is transferred onto paper, any remaining toner on the PC drum isscraped off by the cleaning blade and collected in the used toner bottle.

Image Transfe r

Image transfer is the process of transferring the toner image created on the PCdrum during the developing process to the paper. This printer uses the rollerimage transfer method, instead of corona image transfer, as the image transferprocess. In roller image transfer, there is no generation of ozone as there is withcorona discharge. Also, there is no blurring caused by motion in the imagetransfer, because the image transfer roller is maintained for the pressure bondingof the paper with the PC drum.

A reverse bias voltage is applied so that the positive toner is not transferred ontothe image transfer roller. (The drum charge bias voltage is used.)

Figure 2-8. Image Transfer



F u s i n g

Fusing is the process of fixing the toner image transferred during the imagetransfer process onto the paper. This printer uses the heating roller method forfising. The heating roller method fixes the toner image with an upper fisingroller that is heated by the heater lamp.

After power is turned on, the heater lamp lights up until the temperature of theupper fising roller reaches 165°C (329°F). After warm up, the mechanical controlboard controls the ON/OFF operation of the heater lamp, based on the TH1signals from the thermistor.

Figure 2-9. Fusing



Paper Exi t

The paper on whichthe face-up tray.

E n g i n e C o n t r o l

the toner image has been fused is fed to the face-down tray or

This section describes engine control, the power supply board, and the highvoltage supply board. The engine is controlled by engine controller board (PWB-Aboard). Figure 2-10 shows an engine controller connection diagram.

Figure 2-10. Engine Controller Connection Diagram



Main Motor Functions and Control

Power from the main motor (Ml) drive is used for the P/C (photo conductor) drive,the developing drive, the fising drive, the standard paper slot feeding drive, andthe lower paper cassette (option) feeding drive. Figures 2-11 through 2-16 showthe positions of the gears and rollers.

F igure 2 -11 . Geara n d R o l l e r P o s i t i o n s

Figure 2-14. FusingD r i v e S e c t i o n

Figure 2 -12 . PC Dr iveS e c t i o n

Figure 2-15. FeedingD r i v e S e c t i o n

Figure 2-13.Developing Section

Figure 2-16. FeedingD r i v e ( O p t i o n )



Table 2-1. Gears and Rollers

No.Gear

Roller Name No.Gear

Teeth TeethRoller Name

1 18 Main Motor (Ml) 15 36 Upper Fusing Roller

2 23/38/126 16 54

3 29 17 15 Face-Down Exit Roller

4 14/32 18 39/48

5 43 P/C Drum 19 15 Face-Up Exit Roller

6 30 P/C Drum 20 24/32

7 47 21* 14/24

8 29/41 22* 18

9 26 23* 18

10 23 Sleeve Roller 24* 18

11 16/40 25* 16

12 46/69 Paper Take-Up Roller 26* 16 Paper Take-up Roller

13 23 Transport Roller 27* 28 Transport Roller

14 16/75 28 14 Image Transfer Roller

*Optional lower paper cassette

Figure 2-17 shows the main motor drive circuit. The main motor (Ml) is afour-phase stepping motor. This motor is controlled by the CPU (IC1A) on theengine controller board (PWB-A). The power supply board (PWB-E) has a steppingmotor driver IC. This IC drives the main motor (M1)The main motor (Ml) is stopped when the CPU (IC1A)board (PWB-A) outputs TdA and TdB signals.

with a constant current. on the engine controller

Figure 2-17. Main Motor Drive Circuit



Paper Take-Up Sensor and Paper Exit Sensor

The paper take-up sensor has three functions:1. To detect the top edge of paper. The engine starts printing when the detection

signal is received.2. To detect paper size. The printer detects the time it takes for paper to pass the

paper take-up sensor during paper feeding. If this time is long, longer paper isfeeding; if the time is short, shorter paper is feeding.

3. To detect paper jams and feed jams.

If the paper take-up sensor does not turn on for paper feeding, the printer detectsa feed jam. A feed jam is a paper jam that has occurred in the feed process. If anyof the following conditions is detected, the printer detects a paper jam. A paperjam is a jam that occurs in the printing process area.

Ž The paper take-up sensor (PC2) or the paper exit sensor (PC3) is on at poweron or when the upper case is closed.

Ž The paper take-up sensor (PC2) or the paper exit sensor (PC3) is not turnedon/off within the specified time. (Refer to the following timing chart.)

Figure 2-18. Paper Take-up Sensor andP a p e r E x i t S e n s o r O n / O f f T i m i n g



Fuser Con t ro l

The fuser is heated by the heater lamp, which is powered by AC voltage. Whenthe power supply board receives a FUSER LAMP signal from the engine controllerboard (PWB-A), the power supply board (PWB-E) supplies the AC voltage to theheater lamp. This AC voltage is cut by the interlock switch when the case is open.

The fuser temperature is detected by the thermistor. Based on the TH1 signalsfrom the thermistor, the engine controller board (PWB-A) controls the fusingtemperature (165° C, 329° F) using the FUSER LAMP signal.

Figure 2-19. Fuser Control Circuit



The following figure shows the fuser temperature control procedure.

Figure 2-20. Fuser Temperature Control

If the following conditions are detected, the printer indicates a fuser error (theLCD displays SERVICE REQ. E0003).

. The thermistor temperature does not reach 55°C (131°F) within 15 sec.

. The warm-up period does not end within 120 seconds.

. The thermistor temperature drops to 130°C (266°F).

. The thermistor temperature exceeds 200°C (392°F).

The thermo fise (TF1) cuts power if the temperature of the fusing section rises toan abnormally high level (over 200°C, 392°F).

Scanner Mirror Motor Control

Figure 2-21 is the scanner mirror motor (M2) control circuit. The scanner mirrormotor is driven while the scanner motor receives the SCANNER MIRRORMOTOR (M2:ON) signal.

Figure 2-21. Scanner Motor Control Circuit



Figure 2-22 is the scanner mirror motor driving timing chart. The scanner mirrormotor rotates 0.15 seconds after the main motor (Ml) turns on. If the MIRRORMOTOR LOCK (M2:LOCK) signal is not turned on within 3 seconds after thescanner mirror motor turns on, the printer indicates a scanner mirror motormalfunction.

Figure 2-22. Scanner Motor Driving Start Timing

Laser Diode Drive

Figure 2-23 shows the laser diode drive circuit. Laser diode emission is controlledby three signals (L DATA, DA1, and DA2) from the engine controller board(PWB-A)

Figure 2-23. Laser Diode Drive Circuit

The L DATA signal is the laser on/off signal. When it is LOW, the laser emits,and when it is HIGH, laser stops emitting. L DATA is the combination of the twosignals in the figure below. If the VIDEO or the FORCED LASER DIODE ONsignal is activated (LOW), the L DATA signal is also active. The VIDEO signal isan image signal sent from the video controller board (C125 MAIN board). TheFORCED LASER DIODE ON signal is a laser emission signal to apply the laserbeam to the SOS sensor.



The laser diode

Figure 2-24. L DATA Generation

forcibly activated within between

Circuit

0.2 seconds and 0.1 secondsis

after the scanner mirror motor (M2) turns on. At this time, laser emission poweris adjusted. LDVR1 and LDVR2 are the laser emission power adjust signals; theyare analog signals. LDVR1 is tuning; LDVR2 is fine tuning.

Figure 2-25. Laser Emission Power Adjustment Timing



If the SSCAN signal is not detected, the printer indicates a laser diodemalfunction. If the scanner mirror motor (M2) does not rotate, the printer alsoindicates a laser diode malfunction.

Figure 2-26. Laser Diode Error Detection

Bias Voltages and Laser Drive Timing

Figure 2-27 is a diagram of the drum charge bias voltage, image transfer biasvoltage, doctor blade bias voltage, and the developing bias voltage control circuit.These bias voltages are generated from the +24 VDC from the high voltage supplyboard (PWB-F). If the printer detects a case open condition, the interlock switchis set to OFF, which cuts the +24 VDC, which, in turn, cuts the bias voltages.

These bias voltages are controlled by the engine controller board (PWB-A). TheCH2:ON (HV-T) signal is the image transfer (roller) bias voltage control. Whilethis signal is LOW, the image transfer roller is charged to 3.2K VDC by the highvoltage supply circuit. And while this signal is HIGH, the image transfer roller ischarged to –0.8K VDC. The CH1:ON (HV-C/T. R) signal controls the drum charge.While this signal is LOW, the PC drum is charged to --1.2K VDC.

The DB:CNT (HV-B.VR) signal is an analog signal for developing bias voltagecontrol. This signal controls the bias voltage level (–300V to --375K VDC) usinganalog data. The image density is controlled by the developing bias voltage level.

2-22

Figure 2-27. High-Voltage Supply Block Diagram



Figure 2-28 is the print process, and Figure 2-29 is the power on sequence.During the power on sequence (initialization), the printer detects mechanicalerrors.

Figure 2-28. Print Process

Figure 2-29. Power On Sequence



Figure 2-30 is the start printthe PRINT signal is received

sequence. The printer’s engine starts printing whenfrom the video controller board.

Figure 2-30. Print Sequence (Start)

Figure 2-31 is the end of the print sequence. The printer stops the main motor(Ml) from rotating, when the paper exit sensor turns off after 2.53 seconds.

Figure 2-31. Print Sequence (End)



Fan Motor Control

The fan motor (M3) rotates at all times after engine initialization has beencompleted. The fan motor rotates faster during printing. When printing ends, thefan motor slows down after 15 seconds.

Figure 2-32. Fan Motor Speed Control Timing

If the voltage of pin IC1A-64 on the engine controller board (PWB-A) does notexceed 150m V for 1 second, the printer indicates a fan motor malfunction.

Figure 2-33. Fan Motor Malfunction Search Timing

Power Supply Circuit Function and Safety Protect ion

The printer’s power supply board (PWB-E) supplies the +5 VDC and +24 VDC.The +24 VDC is used as the bias voltage supply, main motor (Ml) drive, scannermirror motor (M2) drive, fan motor (M3) drive, and solenoid drive. For safetyprotection, the +24 VDC line is cut when the interlock switch (case open switch) isoff.

Figure 2-34. Power Supply Circuit Block Diagram



Video Controller Operation

The video controller section generates the video signals for the received data. Thevideo controller section is separate in the C125 MAIN board and the control panel.The control panel is connected to the engine controller board (PWB-A), but iscontrolled by the C125 MAIN board, which sends the signals for the control panelthrough the engine controller board.

2-26

Figure 2-35. Video Controller Block Diagram



C125 MAIN Board Opera t ion

Figure 2-36 shows a block diagram of the C125 MAIN board. The C125 MAINboard contains the video controller, which consists of a SPARKlite, 17.6 MHz,32-bit bus, MB86930 RISC CPU, the standard cells (gate arrays) developed forthis printer, DRAMs, ROMs, and a 16 K-bit EEPROM.

Figure 2-36. C125 MAIN Board Block Diagram



Table 2-2 lists the functions of the chief elements of the C125 MAIN board.

Table 2-2. Functions of the Major Components of the C125 MAIN Board

Component Location Function

MB86930 RISC ICI The CPU, which operates at 17.6 MHz, manages theCPU video controller operation.

E05A91 ASIC IC9 This ASIC contains the following functions:. Address decoding. DRAM management (refresh control,

RAS/CAS control)

E05A92 ASIC IC25 This ASIC contains the following functions:. Video signal processing. BiRITech. EMGTech

E05A93 ASIC IC24 This ASIC contains the following functions:. Video interface. Bi-parallel interface. RS-232C interface. RS-422 interface. LocalTalk module control. Type-B interface card control. Control panel control

Two 8M ROMs IC21,22 These ROMs are code ROMs.or orfour 4M ROMs IC7, 8,

18, 15

Two 8M ROMs IC4, 5 These ROMs are font ROMs.

EEPROM IC10 This EEPROM stores the following:. Model type. Printed page counter value. Toner life counter value. Jam counter value. SelecType settings

DRAM IC16, 17, These DRAMs are used as the CPU’s working area:19, 20 input buffer, image buffer, etc.

ADM232 IC28 This IC changes the RS-232C signal level.

MC34050 IC8 This IC changes the RS-422 signal level.



Print data and commands transmitted from the host computer via parallel, serial,or optional interfaces are read using the interrupt process of the CPU and storedin the DRAM input buffer.

Data and commands in the input buffer are processed by the CPU, which thenstores the printing bitmap data (image data) in the V (video) -RAM (image buffer)in the DRAM. The size of the V-RAM depends on the available DRAM size. A“PRINT OVERRUN” occurs when the V-RAM is so small that the CPU cannotprocess data faster than it is transmitted to the engine controller board. If suchan error occurs, increase the V-RAM using SelecType PAGE PROTECT.

The E05A91 transmits image data stored in the V-RAM to E05A92. The E05A92changes the image data format from 32-bit parallel data to serial data, and storesit in the internal temporary buffer. The temporary buffer has a capacityequivalent to several lines. This is controlled by the E05A92, which synchronizesand transmits the temporary buffer’s data to the engine controller board.Then the E05A92 manages BiRITech and EMGTech.

Figure 2-37. Data Flow Diagram



Reset Circuit

The entire system (the CPU and the external devices) can be initialized if theRESET signal (CPU pin 113) is activated. This circuit uses an M51938 IC tomonitor the supply voltage if a voltage level less than 4.25 V is detected. Thereset time is approximately 128 ms.

Figure 2-38. Reset Circuit

Bus Control Circuit

The MB86930 CPU outputs the R/W (read/write) signal, AS (address strobe)signal, and BE0, BE1, BE2, and BE3 signals (byte enables) to the ASIC E05A91.The ASIC E05A91 uses these signals to generate the RD (read strobe) signal, WR(write strobe) signal, READY signal.

Figure 2-39. Bus Control Circuit



In te r rup t Con t ro l

ASIC E05A93 determines the priority level of an interrupt and outputs it toterminals IRL0 - IRL3. Then the interrupt is sent to the CPU. When the value ofIRL0-3 is 1111 (binary), the CPU processes a non-maskable interrupt. When thevalue of IRL0-3 is 0000 (binary), CPU processes a standard interrupt. WhenIRL0-3 is another value, the CPU processes a maskable interrupt.

DRAM Management

The video controller uses DRAMs for system RAM and for V-RAM.

In this printer, a standard four 512K x 8 DRAMs are mounted in locations IC20,IC19, IC17, and IC16, providing a total of 2MB. SIMM sockets 1 (CN8) and 2(CN9) are the optional SIMM sockets, which can use 1, 2, 4, 8, 16, 32 MB, 32-bitbus SIMMs.

The DRAMs (including optional SIMMs) are managed by ASIC E05A91. TheE05A91 outputs MA0-10 (memory address), RAS/CAS, and WE signals.

Figure 2-40. DRAM Management



Parallel Interface Circuit

Figure 2-41 shows a block diagram of the parallel interface circuit block. Datasent from the host computer is latched within the E05A93 by the STROBE signal.The E05A93 outputs the BUSY signal automatically to stop the host computerfrom sending additional data. The CPU resets the BUSY signal after reading thedata from the E05A93, so that the printer is ready to receive more data from thehost computer.

Figure 2-41. Parallel Interface Circuit

RS-232C Circuit

This circuit uses the RS-232C receiver/driver IC ADM232 (IC28) to change thesignal level from the RS-232C signal level (--12 VDC or +12 VDC) to the TTLsignal level (0 V or +5 V) or from the TTL signal level to the RS-232C signal levelThis IC converts +5 VDC to +12 VDC and –12 VDC. The E05A93 standard cellchanges serial (RS-232C) data to parallel data.

Figure 2-42. RS-232C Circuit



RS-422 Circuit

This circuit uses the RS-422 receiver/driver IC MC34050 (IC6) to change thesignal level from the RS-422 signal level to the TTL signal level (0 V or +5 V) orfrom the TTL signal level to the RS-422 signal level. The E05A93 standard cellchanges serial (RS-422) data to parallel data.

Figure 2-43. RS-422 Circuit

LocalTalk Circuit

The LocalTalk circuit is an optional I/F board that uses three ICS, 85C30 (IC3),26LS30 (IC1), and 26LS32 (IC2). The 85C30 (IC3) changes parallel data to serialdata or serial data to parallel data. It is controlled by the E05A93 (IC24) on C125MAIN board. The 26LS30 (IC1) and 26LS32 (IC2) are ICS used to change signallevels from the TTL signal level to LocalTalk signal level (compatible with RS-422signal level).

Figure 2-44. LocalTalk Circuit



Optional Type-B InterfaceThis printer supports an EPSON Type-B optional interface, which is controlled bythe INH and BIF signals from the E05A93 (IC24).

Video Interface

ASIC E05A92 maps the SRAM into a memory space different from the systemmemory. The CPU transmits data from the V-RAM (in the system RAM) to theSRAM using ASIC E05A92. The ASIC cell converts the image data in the SRAMfrom parallel to serial, synchronizes it, and then transmits it to the enginecontroller board. In other words, the SRAM is a temporary buffer used totransmit the image data to the engine controller board. This serial image data isthe VIDEO signal of video interface.

The signal lines of the internal video interface circuit (the C125 MAIN board andengine controller board) can be broadly divided into four groups. The first group(PRINT, CPRDY, EPRDY, and PRDY) gives the status of either the videocontroller or engine controller and indicates whether they are ready tocommunicate with each other or ready to start the printing operation. The secondgroup (VSYNC, HSYNC) is the synchronizing signal for the printing operation.The third group (VIDEO) is the serial video data signal. The fourth group (CMD,SRCLK, CTBSY, and ETBSY) is used to transfer the commands (from the videocontroller) or the status (from the engine controller) for printer mechanismcontrol. Except VIDEO, PRINT, VSINC, and HSYNC signals are controlled byASIC E05A93.

This printer has BiRITech and EMGTech functions standard. These functionsmodify the VIDEO signal using ASIC E05A92.


DISASSEMBLY AND ASSEMBLY

CONTENTS

Precautions for Disassembly and Assembly .3-3Tools . . . . . . . . . . . . . . . . . . . . . . . . ...3-4Small Parts . . . . . . . . . . . . . . .. . . . . ...3-4Service Checks after Repair.. . . . . . . . . . . ...3-6Procedures for Disassembly and Assembly . . . . . . . . . . . . . . . . ...3-7Removal ofthe Video Controller Section . . . . . . . . . . . . . . . . . . ...3-7

Video Controller Board (C125 MAIN Board) Removal . . . . . . . . . 3-7LocalTalk I/FBoard Removal . . . . . . .. . . ...3-9Control Panel Removal . . . . . . . . . . . . . . ...3-10

Housing Removal . . . . . . . . . . . . . . . . . . . . . . ...3-11Case Removal . . . . . . . . . . . . . . . . . . . . . . ...3-11Rear Frame Removal . . . . . . . . . . . . . . . . ...3-13

Disassembling the Engine . . . . . . . . . . . ...3-14Engine Controller Board (PWB-A) Removal . . . . . . . . . . . . . . . . . . . 3-14P o w e r S u p p l y U n i t ( P W B - E ) R e m o v a l . . . . . . . . . . 3 - 1 5Interlock Switch Removal . . . . . . . . . . . . . ...3-16Optical Unit Removal . . . . . . . . . . . . . . . ...3-17Paper Empty Sensor Removal. . . . . . . . ...3-18High-Voltage Supply Board (PWB-F) Removal . . . . . . . . . . . . . . . . . . . 3-19Main Motor (Ml) Removal . . . . . . . . . . . ...3-20Fan Motor (M3) Removal . . . . . . . . . . . . ...3-21Fusing Unit Removal . . . . . . . . . . . . . . . ...3-22Fusing Unit Disassembly . . . . . . . . . . . . ...3-23Image Transfer Roller Removal . . . . . . . ...3-25Paper Take-Up Roller Removal . . . . . . . ...3-26


Disassembly and Assembly

FIGURES

Figure 3-1. Removing the Interface Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-7Figure 3-2. Removing the 3 Screws. . . . . . ...3-7Figure 3-3. Pulling the Tab... . . . . . . . . . . . ...3-8Figure 3-4. Removing the Video Controller Board . . . . . . . . . . . . . . . . . . . . . 3-8Figure 3-5. Removing the 2 Screws . . . . . . . . . ...3-9Figure 3-6. Removing the LocalTalk Module . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-9Figure 3-7. Removing the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-10Figure 3-8. Removing the Housing . . . . . . . ...3-12Figure 3-9. Removing the Rear Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-13Figure 3-10.Figure 3-11.Figure 3-12.Figure 3-13.Figure 3-14.Figure 3-15.Figure 3-16.Figure 3-17.Figure 3-18.Figure 3-19.Figure 3-20.Figure 3-21.Figure 3-22.Figure 3-23.Figure 3-24.

TABLES

Removing the Engine Controller Board (PWB-A)... . . . . . . . . . 3-14Removing the Power Supply Unit. . . . . .. . . . . . . . . . .. . 3-15Removing the Interlock Switch.. . . . .. . . .. . . .3-16Removing the Optical Unit..... . . .. . ..3-17Removing the Paper Empty Sensor . . . . . . . . . . . . . . . . . . . . . . . ...3-18Removing the High-Voltage Supply Board . . . . . . . . . . . . . . . . . . . . 3-19Removing the Main Motor..... . .. . . . ... . . . . ..3-20Removing the Fan Motor . . . . . . ... . . . .. . . . .. 3-21Removing the Fusing Unit..... . . .. . . . . . . . . . ..3-22Disassembling the Fusing Unit l . . . . . . . . . . . . . . . . . . . . . . . . . ..3-23Disassembling the Fusing Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . ..3-24Removing the Image Transfer Assembly 3-25Removing the Image Transfer Roller . . . . . . . . . . . . . . . . . . . . . ...3-25Removing the Paper Take-Up Assembly. 3-26Removing the Paper Take-Up Roller. . . . . . . . . . . . . . . . . . . . . . ...3-27

Table 3-1. Tools . . . . . . . . . . . . . . . . . . . . . . . . . ...3-4Table 3-2. Abbreviations Used for Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3-4Table 3-3. Checks after Repair . . . . . . . . . . . . ...3-6


Disassembly and Assembly 3

This chapter describes the disassembly procedures to be used for replacing themain assemblies of the Action Laser 1600.

Precautions for Disassembly and Assembly

Follow the precautions below when disassembling or assembling the printer.

Warning

Disconnect the power cord before disassembling/assembling the printer. Be sure to handle the fusing unit carefully, because the unit remains hot for

a while after the printer stops printing. If it is necessary to plug in the power cord and operate the printer after

disassembling it, please be careful of the following:1. Keep your hands and clothing well away from operating or rotating

parts (such as rollers, fan motors, etc.).2. Never touch electric terminals or high-voltage components (such as

the charger and the high voltage unit).

Caution

Do not disassemble the imaging cartridge.If the imaging cartridge is removed from the printer, do not place it in directsunlight.Do not disassemble the optical unit.Never turn power on if the optical unit is not installed.To prevent damage to ICs from static electricity, do not touch the ICs on thecircuit board or the terminals of peripheral electrical components with yourhands.Use only the recommended tools to ensure safe and efficient maintenancework. Inappropriate tools may damage the machine.Never open the upper unit until the main motor stops completely. Otherwise,the gears may be damaged.When transporting the printer, remove the imaging cartridge from theprinter.When transporting the printer a long distance, pack up the printer using theoriginal packing material.



Tools

Use the tools listed in Table 3-1 for troubleshooting.

disassembling/assembling the printer and for

Table 3-1. Tools

NameCommercial ly

Available?Part No.

Philips screwdriver No. 2 Yes B743800200

Regular screwdriver Yes B743000100

Tweezers Yes B641000100

Soldering iron Yes B740200100

Round-nose pliers Yes B740400100

Small Parts

In the following sections, abbreviations are used for small parts, such as screwsand washers. Tables 3-2 and 3-3 list these abbreviations.

Table 3-2. Abbreviations Used for Screws

Abbreviat ionPart Name

CP Cross-recessed Pan head

CC Cross-recessed Cup head

CP(O) Cross-recessed Pan head with Outside toothed lock washer

CP(S)(P1) Cross-recessed Pan head with Spring lock washer and 1 Plain washer

CCB Cross-recessed Cup head Bind

SCB Slotted Cross-recessed B-tight

SCB(S)(P1) Slotted Cross-recessed Bind with Spring washer and 1 Plain washer



Service Checks after Repair

Check the repaired unit using the following list on completion of servicing

Table 3-3. Checks after Repair

Item Location CheckpointCheck

Operation Control panel Do all LEDs, LCD, and buttons functionnormally?

Heater lamp Does the heater lamp turn ON normally?

Test print (status Is the test print performed normally?sheet, font sample,feature print)

Optional font Do cartridge fonts print on font samplecartridge printing?

Data print Does data print in all modes?

Adjustment Print position Is the gap between the top edge of the paperand the horizontal line in the FACT SHEETprint exactly 0.56 inch (14.3 mm)?

ROM Is it the latest ROM version?version

Cleaning Has toner and dust been removed from thepaper path?Is the lens on the optical unit clean?Is the paper take-up roller clean?Is the roller in the fusing unit clean?Is the outer surface of the printer clean?

Packing Has the imaging cartridge been removed fromthe printer?Is the unit packed securely?Are accessories packed also?



Procedures for Disassembly and Assembly

This section describes and illustrates the procedures for removing anddisassembling the components of the ActionLaser 1600. Cleaning is described inChapter 6. Assembly procedures are not described, except for special notes wherenecessary, because assembly can be done by performing disassembly in reverse.

Removal of the Video Controller Section

The control section is comprised of the video controller board (the C125 MAINboard) and the control panel board.

Video Controller Board (C125 MAIN Board) Removal

Caution

Before you remove the video controller board, make sure that you remove anyoptional cards or cartridges. Otherwise, you may damage the cartridge or cardconnectors on the board as well as the cartridge or card itself.

1. Turn the printer so that its left side faces you,

2. Remove the 2 SCB (M3 x 14) screws securing the interface card cover; thenpull off the cover.

3. Remove the 3 SCB(S)(P1) (M3 x 6) screws that secure the metal bracket on theleft side of the printer.

Figure 3-1. Removing the Interface Figure 3-2. Removing the 3 ScrewsCover

4. Pull the tab on the bottom of the bracket to release the video controller board,as shown below.



5. Grasp the board with both hands and pull it out of its slot

Figure 3-3. Pulling the Tab

3-8

Figure 3-4. Removing the VideoController Board



LocalTalk I/F Board Removal

1. Remove the video controller board (C125 MAIN board). (Refer to pages 3-7and 3-8.)

2. Remove 2 CP (M3 x 5) screws from the LocalTalk module.

3. Remove the LocalTalk module from the video controller board (C125 MAINboard).

Figure 3-5. Removing the 2 Screws Figure 3-6. Removing the LocalTalkModule



Control Panel Removal

1. Open the top cover. Remove the imaging cartridge. Cover the imagingcartridge to protect it from light or place it in a dark area.

2. Remove 1 CC (M3 x 8) screw from the control panel.

3. Lift the control panel, and then remove connector CN3 on the engine controllerboard (PWB-A).

4. Remove the control panel.

3-10

Figure 3-7. Removing the Control Panel



Housing Removal

This section describes how to remove the cases and the rear frame.

Case Removal

1.

2.

3.

4.

5.

6.

7.

8.

9.

Remove the video controller board (C125 MAIN board). (Refer to pages 3-7and 3-8.)

Open the top cover. Remove the imaging cartridge. Cover the imagingcartridge to protect it from light or place it in a dark area.

Remove the control panel. (Refer to page 3-10.)

Remove the paper cover.

Remove 3 CC (M3 x 8) screws for the paper guide case, and remove the paperguide case.

Loosen 2 CC (M3 x 8) screws and the front cover.

Loosen 1 CCB (M3 x 8) screw, remove 2 CC (M3 x 8) screws, and remove theright cover.

Remove 3 CC (M3 x 8) screws and the left cover.

Remove the top cover.



Figure 3-8. Removing the Housing



Rear Frame Removal

1. Remove the video controller board (C125 MAIN board). (Refer to pages 3-7and 3-8 .)


3. Remove the control panel. (Refer to page 3-10.)

4. Remove the paper cover.

5. Remove the right cover and left cover. (Refer to pages 3-11 and 3-12.)

6. Remove the top cover.

7. Remove 6 CP(0) (M3 x 6) screws and lift the rear frame.

8. Disconnect connector CN1 on the power supply board (PWB-E) and connectorCN2 on the high-voltage supply board (PWB-F).

Figure 3-9. Removing the Rear Frame



Disassembling the Engine

This section describes disassembling the engine, including the engine controllerboard (PWB-A) and power supply board (PWB-E).

Engine Controller Board (PWB-A) Removal

1. Remove the video controller board (C125 MAIN board). (Refer to pages 3-7and 3-8.)




5. Remove the right cover

6. Disconnect connectorsengine controller board

7.

8.

(Refer to pages 3-11 and 3-12.)

CN2, CN6, CN7, CN9, CN8, CN5, and CN4 on the(PWB-A).

Remove 4 CC (M3 x 6) screws on the engine controller board (PWB-A).

Remove the engine controller board (PWB-A).

Figure 3-10. Removing the Engine Controller Board (PWB-A)



Power Supply Unit (PWB-E) Removal



3. Remove the paper cover

4. Remove the right cover. (Refer to pages 3-11 and 3-12.)

5. Disconnect connectors CN1, CN4, and CN2 on the power supply board(PWB-E) and CN8 on engine controller board (PWB-A).

6. Disconnect the connectors for the interlock switch

7. Remove 2 CP(0) (M3 x 6) screws, and remove the power supply unit

Figure 3-11. Removing the Power Supply Unit



Interlock Switch Removal




4. Remove the right cover. (Refer to pages 3-11 and 3-12.)

5. Remove the power supply unit. (Refer to page 3-15.)

6 Remove 2 CC (M3 x 16) screws for the interlock switch, and removeinterlock switch.

Figure 3-12. Removing the Interlock Switch

the



Optical Unit RemovalCaution

Do not touch the optical unit, except at the time of replacement.Do not open the unit under any conditions.Do not remove the circuit board from the optical unit under any condition.Do not loosen the 2 screws secured with black paint (shown in position A inthe figure below).Do not loosen the 2 screws (shown in position B in the figure below).

1.

2.

3.

4.

5.

6.

Open the top cover. Remove the imaging cartridge. Cover the imagingcartridge to protect it from

Remove the control panel.

Remove the paper guide.

light or place it in a dark area.

(Refer to page 3-10.)

Remove the paper guide case. (Refer to pages 3-11 and 3-12.)

Disconnect connector CN5 on the engine controller board (PWB-A).

Remove 2 CC (M3 x 6) screws and 1 CC (M3 x 12) screw, and remove theoptical unit.

Figure 3-13. Removing the Optical Unit

EPSON ActionLaser 1600 Service Manual3-17


Paper Empty Sensor Removal




4. Remove the paper guide case. (Refer to pages 3-11 and 3-12.)


6. Remove the optical unit. (Refer to page 3-17.)

7. Remove the paper empty sensor

8. Disconnect the connector for the paper empty sensor.

3-18

Figure 3-14. Removing the Paper Empty Sensor



High-Voltage Supply Board (PWB-F) Removal

1.

2.

3.

4.

5.

6.

7.

8.

Open the top cover. Remove the imaging cartridge. Cover the imagingcartridge to protect it from light or place it in a dark area.

Remove the control panel. (Refer to page 3-10.)

Remove the paper cover.

Remove the right cover and left cover. (Refer to pages 3-11 and 3-12.)

Remove the top cover. (Refer to pages 3-11 and 3-12.)

Remove the rear frame. (Refer to page 3-13.)

Disconnect connectors CN1, CN3, the red wire terminal, and the black wireterminal on the high-voltage supply board (PWB-F).

Remove 3 CP (M3 x 8) screws on the high-voltage supply board, and removethe high-voltage supply board (PWB-F)

Figure 3-15. Removing the High-Voltage Supply Board



Main Motor (Ml) Removal





5. Remove the top cover. (Refer to pages 3-11 and 3-12.)

6. Remove the rear frame. (Refer to page 3-13.)

7. Remove 3 CP(S)(P1) (M3 x 6) screws for main motor (Ml).

8. Lift main motor (Ml), and disconnect the connector for main motor (Ml).

Figure 3-16. Removing the Main Motor



Fan Motor (M3) Removal






6. Remove the rear frame. (Refer to page 3-13.)

7. Remove 2 CCB (M3 x 8) screws, and remove the fan motor (M3)

Figure 3-17. Removing the Fan Motor



Fusing Unit Removal






6. Remove the rear frame. (Refer to 3-13.)

7. Disconnect the connector for the thermistor in the fusing unit, the connectorfor the paper exit sensor, and CN4 on the power supply board (PWB-E).

8. Remove 2 CP(O) (M3 x 6) screws on the fusing unit, and remove the fusingunit.

Figure 3-18. Removing the Fusing Unit



Fusing Unit Disassembly

This section describes how to remove the paper exit sensor, heater lamp, cleaning,lower fusing roller, and upper fusing roller.

1. Remove the fusing unit. (Refer to page 3-22.)

2. Remove the paper exit sensor.

3. Remove 2 CC (M3 x 6) screws for the side covers, and remove the side covers

Caution

Do not touch the class surface of the lamn with vour bare hands.

4. Remove 2 CC (M3 x 6) screws on the heater lamp support plate, and removethe heater lamp support plate.

5. Remove the heater lamp.

Figure 3-19. Disassembling the Fusing Unit 1



Caution

Be careful not to scratch the surface of the upper fusing roller.

6. Remove 2 CC (M3 x 6) screws on the guide plate, and remove the guide plate.

7. Remove 2 springs and 2 bushings on the lower fusing roller, and remove thelower fising roller.

8. Remove 2 C-rings and 2 bushings on the upper fusing roller, and remove theupper fusing roller.

Figure 3-20. Disassembling the Fusing Unit 2



Image Transfer Roller Removal


2. Slide the image transfer assembly to the left, lift up the right side, and removethe image transfer assembly.

3. Remove the image transfer roller.

Figure 3-21. Removing the Image Transfer Assembly

Figure 3-22. Removing the Image Transfer Roller



Paper Take-Up Roller Removal



3. Remove the paper guide case.

4. Remove the optical unit. (Refer to page 3-17.)

5. Remove the image transfer assembly. (Refer to 3-25.)

6. Disconnect connectors CN1, CN3, the red wire terminal, and the black wireterminal on the high-voltage supply board (PWB-F).

7. Disconnect connector CN4 on the engine controller board (PWB-A).

8. Remove the 2 CC (M3 x 8) screws for the bracket.

9. Remove the guide plate and the paper empty sensor flag.

10. Remove 2 CC (M3 x 8) screws on the paper take-up assembly.

11. Slide the paper take-up assembly to the right, lift the left side up, and removethe paper take-up assembly.

Figure 3-23. Removing the Paper Take-Up Assembly



12. Remove the roller cover.

13. Remove 1 E-ring on the paper take-up clutch, and remove the paper take-upclutch

14. Remove 2 E-rings and left bushings on the paper take-up roller shaft

15. Remove the paper take-up roller.

Figure 3-24. Removing the Paper Take-Up Roller


Adjustments

C o n t e n t

Print Position Adjustment . . . . . . . . . . . . . ...4-3

F igu res

Figure 4-1. Print Position Adjustment . . . . . . ...4-3Figure 4-2. Opening the Upper Unit and Paper Cover and Removing 1 Screw . .. . . ... . .4-4Figure 4-3. Holding the Control Panel and Adjusting VR1A. . . . . . 4-4Figure 4-4. Closing the Paper Cover and the Upper Unit. . .. . . . . .. . 4-4


Adjustments


Adjustments 4

This section describes the adjustment procedures for the ActionLaser 1600. Theseadjustments must be performed after every servicing operation, especially whenany component or part is replaced.

Print Position Adjustment

You adjust the vertical print position on a sheet of paper by turning the imagesynchronizing volume control on the engine controller board (PWB-A). After theengine controller board (PWB-A) is replaced, be sure to readjust the print positionfollowing the procedure below.

1. Print a status sheet using SelecType.

2. Check that the registration gap between the leading edge of the page and theprinted horizontal line is the correct following value:

Letter paper: 0.56 ± 0.10 inch (14.3 + 2.5 mm)If not, adjust the print position as described in the next few steps.

Figure 4-1. Print Position Adjustment

3. Turn the printer power off.

4. Open the upper unit, open the paper cover, and remove 1 screw securing thecontrol panel.


Adjustments

Figure 4-2. Opening the Upper Unit and Paper Cover andRemoving 1 Screw

5. While holding the control panel, adjust the image synchronizing adjustmentvolume (VR1A) on the engine controller board (PWB-A) so that the vertical gapfrom the top edge of the paper to the print position of the horizontal linebecomes 0.56 inches (14.3 mm) for ActionLaser 1600.

Turn VR1A clockwise to decrease the print position gap.Turn VR1A counterclockwise to increase the gap.

6. Turn on the printer.

Figure 4-3. Holding the Control Panel Figure 4-4. Closing the Paper Cover


Adjustments

7. Print a status sheet using SelecType to again check the print position.

8. Repeat steps 3 to 7 until the print position is 0.56 inches (14.3 mm).

9. Reattach the control panel, securing it with the 1 screw, close the paper cover,and close the upper unit.


Troubleshooting

Contents

Self-Diagnostic Function . . . . . . . . . . . . . . ...5-3Special Troubleshooting Tools. . . . . . . . . . . . ...5-4Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . ...5-4

Troubleshooting of Abnormal Operations . . . . . . . . . . . . . . . . 5-4Print Quality Anomalies . . . . . . . . . . . . . ...5-16

Tables

Table 5-1.Table 5-2.Table 5-3.Table 5-4.Table 5-5.Table 5-6.Table 5-7.Table 5-8.Table 5-9.

Messages Requiring Service Maintenance. . . . . . . .. . . . . . 5-3Extension Cable . . . . . . . . . . . . . . . ...5-4Symptoms and Reference Tables . ...5-5The Printer Does Not Operate at All . . . . . . . . . . . . . . . . . . . . . . . . . . ..5-6The Printer Does Not Start RAM Check . . . . . . . . . . . . . . . . . . . . . . ...5-6The LCD Displays COVEROPEN. . . . . . . . . . . . .. . . . ..5-7The LCD Displays PAPER OUT .. . . . . . . .. . . . . . . ...5-7The LCD Displays ILLEGAL CART. . . . . .. . . . . . .5-7The LCD Displays FEED JAM. . .. . . . .. . . . . . . ...5-8

Table 5-10. The LCD Displays FEED JAM for Lower Paper Cassette 5-8Table 5-11. The LCD Displays PAPER JAM at Power On . . . . . . . . . . . . . . . 5-9Table 5-12. The LCD Displays PAPER JAM during Paper Feeding 5-10Table 5-13. The LCD Displays RAM ERROR . . . . . . . . . . . . . . . . . . . . . . . . . . ...5-10Table 5-14. The LCD Displays EEPROM ERROR.. . . . . . . . . . . . . . . 5-10Table 5-15. The LCD Displays SERVICE REQ. E0003 . . . . . . . . . . . . . . . . . . . . . 5-10Table 5-16. The LCD Displays SERVICE REQ. E0004 . . . . . . . . . . . . . . . . . . . . . 5-11Table 5-17. The LCD Displays SERVICE REQ. E0005 . . . . . . . . . . . . . . . . . . . . . 5-11Table 5-18. The LCD Displays SERVICE REQ. E0006 . . . . . . . . . . . . . . . . . . . . . 5-12Table 5-19. The LCD Displays SERVICE REQ. E0009 . . . . . . . . . . . . . . . . . . . . . 5-12Table 5-20. The LCD Displays SERVICE REQ. E0014 . . . . . . . . . . . . . . . . . . . . . 5-12Table 5-21. The LCD Displays SERVICE REQ. C0003 . . . . . . . . . . . . . . . . . . . . . 5-12Table 5-22. The LCD Displays SERVICE REQ. C0007 . . . . . . . . . . . . . . . . . . . . . 5-12Table 5-23. The LCD Displays SERVICE REQ. C1000 . . . . . . . . . . . . . . . . . . . . . 5-13Table 5-24. The LCD Displays SERVICE REQ. C1110 . . . . . . . . . . . . . . . . . . . . . 5-13Table 5-25. The LCD Displays SERVICE REQ. C1120 . . . . . . . . . . . . . . . . . . . . . 5-13Table 5-26. The LCD Displays SERVICE REQ. C1130 . . . . . . . . . . . . . . . . . . . . . 5-13Table 5-27. The LCD Displays SERVICE REQ. C1140 . . . . . . . . . . . . . . . . . . . . . 5-13Table 5-28. The LCD Displays SERVICE REQ. C1150 . . . . . . . . . . . . . . . . . . . . . 5-14Table 5-29. The LCD Displays SERVICE REQ. C1160 . . . . . . . . . . . . . . . . . . . . . 5-14Table 5-30. The LCD Displays SERVICE REQ. C1170 . . . . . . . . . . . . . . . . . . . . . 5-14Table 5-31. The LCD Displays SERVICE REQ. C1180 . . . . . . . . . . . . . . . . . . . . . 5-14Table 5-32. The LCD Displays SERVICE REQ. C1190 . . . . . . . . . . . . . . . . . . . . . 5-14Table 5-33. The LCD Displays SERVICE REQ. C1200 or C1210 . . . . . . . . . . . . 5-15Table 5-34. The LCD Displays SERVICE REQ. C1300 . . . . . . . . . . . . . . . . . . . . . 5-15


Troubleshooting

Table 5-35. The LCD Displays SERVICE REQ. C1310 . . . . . . . . . . . . . . . . . . . . . 5-15Table 5-36. The LCD Displays SERVICE REQ. C1320.. . . . 5-15Table 5-37. The LCD Displays Another SERVICE REQ. Error. . .. 5-15Table 5-38. Print Quality Anomalies . .. . . . .. ...5-16


Troubleshooting 5

The ActionLaser 1600 has a sophisticated, built-in, self-diagnostic function thatreduces troubleshooting time by identifying failed parts or components. Thisself-diagnostic test overcomes troubleshooting problems for page printers, inwhich even a trivial failure can result in a serious print quality problem.

Self-Diagnostic Function

This section describes the self-diagnostic function, in which the controllerautomatically checks the operating conditions of each component. If anyabnormality is detected, the printer displays an error message on the LCD panel.Table 5-1 lists the messages that tell you if service maintenance is required.

Table 5-1. Messages Requiring Service Maintenance

Error No. Source of Problem Error Type

E0003 Fusing unit Engine error

E0004 Main motor

E0005 Fan motor

E0006 Scanner mirror motor

E0009 Laser light

EOO14 Communication for engine controllerand video controller

C0001 CPU (reserved) Video controller error

C0002 CPU (programming command error)

C0003 CPU (illegal instruction)

C0004 CPU (unsupported FPU instruction)

C0007 CPU (address misalignment)

C0009 CPU (reserved)

C0010 CPU (tag overflow)

C0017 toC0031 CPU (unsupported interrupt)

C0036 CPU (unsupported coprocessor instruction)

C0128 toC0254 CPU (unimplemented instruction)

C0255 CPU (break error)


Troubleshooting

Table 5-1

Error No.

C1000C1110C1120C1130C1140C1150C1160C1170C1180C1190C1200C1210C1300C1310C1320C1999

A, B, D,F to Z

Messages Requiring Service Maintenance (cont.)—

Source of Problem

RAMROM (C125 MAIN board IC 4)ROM (C125 MAIN board IC 5)ROM (C125 MAIN board IC 7 or IC22)ROM (C125 MAIN board IC 8 or IC22)ROM (C125 MAIN board IC 18 or IC21)ROM (C125 MAIN board IC 15 or IC21)Optional ROM (Cl 25 MAIN board IC11)Optional ROM (EPSONScript module)Optional font cartridgeEEPROM writeEEPROM write counter overflowOption Type-B interfaceUnsupported Type-B l/F installedLocalTalk l/F moduleOther video controllerSoftware

Error TypeVideo controller error

Software error

Special Troubleshooting Tools

If you want to check to the component level, an extension cable is available forthis printer to let you check video controller board waveforms. You can removethe video controller (C125 MAIN) board from the board slot and still check itswaveforms by connecting the board to the engine with this cable. The followingtable shows the extension cable and connecting points.

Table 5-2. Extension Cable

Connector on Video Connector on EngineController (C125 MAIN) Controller (PWB-A)

Board Board Extension Cable Part Code

CN7 CN1 #F606 1015058

Troubleshooting

This section describes troubleshooting abnormal operations and print qualityproblems. It describes how to detect malfunctions and determine the cause, and itsuggests what actions to take for various types of malfunctions.


T r o u b l e s h o o t i n g

Table 5-3. Symptoms and Reference Tables

Symptom Printer ConditionReference

Table

The printer does not The heater lamp in fusing unit does not come on, 5-4operate at all. and so the RAM check is not started.

RAM check not displayed. The heater lamp in fusing unit comes on, but the 5-5RAM check is not started.

COVER OPEN The paper cover is closed, but the LCD still displays 5-6COVER OPEN.

PAPER OUT The paper is loaded in the paper tray, but the LCD 5-7displays PAPER OUT.

ILLEGAL CART The LCD displays ILLEGAL CART. 5-8

FEED JAM The LCD displays FEED JAM. 5-9

FEED JAM displayed for The LCD displays FEED JAM when the printer is 5-10the lower paper cassette. using the lower paper cassette.

P A P E R J A M The LCD displays PAPER JAM at power on. 5-11

PAPER JAM displayed The LCD displays PAPER JAM during paper feeding. 5-12during paper feeding.

RAM ERROR The LCD displays RAM ERROR. 5-13

EEPROM ERROR The LCD displays EEPROM ERROR at power on. 5-14

SERVICE REQ. E0003 The LCD displays SERVICE REQ. E0003. 5-15






SERVICE REQ. C0003 The LCD displays SERVICE REQ. C0003. 5-21












Troubleshooting

Table 5-3. Symptoms and Reference Tables (cont.)

Symptom Printer ConditionReference

Table


SERVICE REQ. C1200 The LCD displays SERVICE REQ. C1200 or C1210. 5-33or C1210




Other SERVICE REQ. The LCD displays a different SERVICE REQ. error 5-37displayed. code.

Table 5-4. The Printer Does Not Operate at A11

Cause

Connector CN1 on thePWB-E board may bedisconnected.

The fuse on the PWB-Eboard may be blown.

Connector CN8 on PWB-Aboard may bedisconnected.

PWB-E board may be dead

PWB-A board may be dead.

Step

1

2

3

4

5

Checkpoint

Is connector CN1 on thePWB-E board disconnected?

Is fuse blown on the PWB-Eboard?

Is connector CN8 on thePWB-A board disconnected?

With the power on, is there anoutput of +5 VDC between pin8 (+) and pin 5 (--) for CN8 onPWB-A board?—

Finding

Yes

Yes

Yes

No

Table 5-5. The Printer Does Not Start RAM Check

Solution

Connect CN1 onPWB-E board.

Replace the fuse.

Connect CN8 onPWB-A board.

Replace thePWB-E board

Replace thePWB-A board.

Cause Step Checkpoint Finding Solution

The video controller board(C125 MAIN board) maybe dead.

1 If you change the C125 MAINboard, does the printer startthe RAM check?

Yes Replace the C125MAIN board.

The control panel may be 2 — Replace thedead. control panel.


Troubleshooting

Table 5-6. The LCD Displays COVER OPEN

Cause

The interlock switchterminal connector may bedisconnected.

The interlock switchposition may be incorrect.

The interlock switch maybe dead.

The PWB-E board may bedead.

Step

1

2

3

4

Checkpoint

Is interlock switch terminalconnector disconnected?

Does the switch turn onwhen the case is closed?

Does the switch toggle?(Check with multimeter.)—

Finding

Yes

No

No

—

Table 5-7. The LCD Displays PAPER OUT

Cause

The paper empty sensorflag position may beincorrect.

The paper empty sensormay be bad.

The PWB-A board may bedead.

Step

1

2

3

Checkpoint

Is paper empty sensor flagposition OK?

—

Finding

No

—

—

Table 5-8. The LCD Displays ILLEGAL CART

Solution

Connect theterminal connectoron the interlockswitch.

Reseat theinterlock switch

Replace theinterlock switch.

Replace thePWB-E board.

Solution

Reseat the paperempty sensor flag.

Replace the paperempty sensor.

Replace.


The installed font cartridge 1 Can this printer use the No Replace with amay be illegal. (Check the inserted cartridge? supported cartridge.user’s guide.)

The cartridge may be bad. 2 Does this printer Yes Replace therecognize another, legal cartridge.cartridge?

The C125 MAIN board may 3 — — Replace the C125be dead. MAIN board.


Troubleshooting

Table 5-9. The LCD Displays FEED JAM


Connector for paper 1 Is connector disconnected? Yes Connect it.take-up solenoid may bedisconnected.

The paper take-up 2 Disconnect connector CN6 No Replace the papersolenoid coil may be open on the PWB-A board and take-up solenoid.or shorted. check coil resistance

between pin 7 and pin 8 onthe disconnected cable sideof the connector using amultimeter.Is the resistanceapproximately 80 ohms?

If the coil is shorted, check Yes Replace the paperthe solenoid drive circuit take-up solenoidusing the procedure below: and the PWB-A1. Set the multimeter for board.

voltage.2. Place the (--) terminal of

the multimeter on pin 7of connector CN6 on thePWB-A board.

3. Place the (+) terminal ofthe multimeter on pin 5(GND).

With power on, does themultimeter detect anycurrent?

Paper take-up sensor flag 3 Is paper take-up sensor flag No Reseat the paperposition may be incorrect. position incorrect? take-up sensor flag.

Paper take-up roller may 4 — — Replace the paperbe bad. take-up roller.

Table 5-10. The LCD Displays FEED JAM for Lower Paper Cassette


The paper take-up 1 Disconnect connector PJ2 No Replace the papersolenoid coil for the lower on the lower paper cassette take-up solenoid.paper cassette may be circuit board and check theopen or shorted. coil resistance between

pins 1 and 2 on thedisconnected cable side ofthe connector using amultimeter. Is the resistanceapproximately 220 ohms?


Troubleshooting

Table 5-10. The LCD Displays FEED JAM for Lower Paper Cassette


The paper take-up 2 If the coil is shorted, check Yes Replace the papersolenoid coil for the lower the solenoid drive circuit take-up solenoidpaper cassette may be using the following and PWB-A board.open or shorted. procedure:

1. Set the multimeter tovoltage.

2. Place the (--) terminalon pin 2 of connectorPJ2 on the lower papercassette board.

3. Place the (+) terminalon ground to jumper J2.

With power on, does themultimeter detect anycurrent?

The paper take-up roller in 3 — — Replace the paperthe lower paper cassette take-up roller.may be bad.

Table 5-11. The LCD Displays PAPER JAM at Power On


The paper take-up sensor 1 Is the paper take-up sensor No Reposition theflag position may be flag position OK? paper take-upincorrect. sensor flag.

The paper exit sensor flag 2 Is the paper exit sensor flag No Reposition theposition may be incorrect. position OK? paper exit sensor

flag.

The paper take-up sensor 3 Is the paper take-up sensor Yes Connect it.connector may be connector disconnected?disconnected.

The paper exit sensor 4 Is the paper exit sensor Yes Connect it.connector may be connector disconnected?disconnected.

The paper exit sensor may 5 — — Replace it.be bad.

The paper take-up sensor 6 — — Replace it.may be bad.

The PWB-A board may be 7 — — Replace it.bad.

The PWB-F board may be 8 — — Replace it.bad.


Troubleshooting

Table 5-12. The LCD Displays PAPER JAM during Paper Feeding


The imaging cartridge 1 Is the imaging cartridge No Install the imagingmay not be installed. installed? cartridge.

The paper take-up roller 2 Does paper always jam in Yes Replace the papermay be bad. paper take-up roller area? take-up roller.

The image transfer roller 3 Does paper always jam in the Yes Replace the imagemay be bad. image transfer roller area? transfer roller.

The fusing unit may be 4 Does paper always jam in the Yes Replace it.bad. fusing unit?

Table 5-13. The LCD Displays RAM ERROR


The optional SIMM may 1 Is the operation OK after you Yes Replace the SIMM.be bad. remove the optional SIMM?

The standard RAM may 2 — — Replace the Cl 25be bad. MAIN board.

Table 5-14. The LCD Displays EEPROM ERROR


The EEPROM on the C125 1 — — Replace it.MAIN board may be bad.

Table 5-15. The LCD Displays SERVICE REQ. E0003


The connector for the 1 Is the connector for the Yes Connect it.thermistor may be thermistor disconnected?disconnected.

The heater lamp or thermal 2 Does the heater lamp come No Replace the heaterfuse in fusing unit may be on at power on? lamp or thermalbad. fuse in fusing unit.

The PWB-A board may be 3 Does the heater lamp Yes Replace thedead. remain lit up until an error PWB-A board.

occurs?

The PWB-E board may be 4 — — Replace thedead. PWB-E board.


Troubleshooting


Table 5-17. LCD Displays SERVICE REQ. E0005


Troubleshooting




Table 5-21. The LCD Displays SERVICE REQ. C0003



Troubleshooting


Table 5-24 The LCD Displays SERVICE REQ. C1110





Troubleshooting


Table 5-29. The LCD Displays Service REQ. C1160





Troubleshooting

Print Qual i ty Anomal ies

This section describes how to isolate print quality problems from the possiblecauses.

Table 5-38. Print Quality Anomalies


Troubleshooting

Table 5-38. Print Quality Anomalies (cont.)


Troubleshooting



Maintenance

Contents

User Maintenance . . . . .. . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . .... 6-3Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6-3Replacement of Consumables. . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-4

Service Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-5Periodic Service Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-5Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . ... 6-5

F i g u r e s

Figure 6-l. External Cleaning . . . . . . . . . . . . .. .. . . . . . . . . . . . ... 6-3Figure 6-2. Cleaning Optical Unit Lens . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-3F i g u r e 6 - 3 . R e m o v i n g t h e I m a g i n g C a r t r i d g e . . . . . . . . . . . 6 - 4Figure 6-4. Shaking the Imaging Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-4Figure 6-5. Removingthe Clear Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6-5Figure 6-6. Inserting the Imaging Cartridge . ... . . . . . . . . . . . . . . 6-5

T a b l e s

Table 6-1. Periodic Service Maintenance . . . . . . . . . . . . . . . . . 6-5Table 6-2. Cleaning Parts and Procedures . . . . . . . . . . . . . . . . . . . . . . . .... 6-6


Maintenance


Maintenance 6

The ActionLaser 1600 is a page printer that uses an electrophotographic printingmethod. Unlike with most impact or ink-jet printers, the key components in theelectrophotographic process are integrated into an expendable cartridge (theimaging cartridge). Therefore, periodic replacement of the imaging cartridge isessential to ensure high-quality output. Other maintenance items are alsodescribed in this section, which is divided into two sections: user maintenance(preventive maintenance) and service maintenance (repair).

U s e r M a i n t e n a n c e

Users can achieve maximum print quality from the printer by following theprocedures below:

Cleaning

This section describes the cleaning required for optimal print quality.

External Cleaning

Be sure to disconnect the printer from the power outlet before cleaning it. Wipethe cover and external parts of the printer with a damp cloth that has been soakedin a neutral cleaning solution.

Figure 6-1. External Cleaning Figure 6-2. Cleaning Optical Unit Lens

Internal Cleaning

Be sure the printer has been disconnected from the power supply and that thefusing unit has cooled down. If the optical unit lens is dirty, clean it using a softcloth


Maintenance

Replacement of Consumables

This printer uses consumable imaging cartridge S051016. The life of thiscartridge is 6000 pages when printing on letter-size pages with a 5% print ratio.

If printed images become faint, remove the cartridge and gently shake it. This willdistribute the toner and may make the images darker. If the image is still toolight, replace the imaging cartridge. The procedure for changing the imagingcartridge is described below.

1.

2.

3.

4.

5.

6.

Imaging Cartridge Replacement

Gently open the upper unit and remove the imaging cartridge by pulling it out.

Dispose of the used imaging cartridge.

While holding the new imaging cartridge horizontally, gently shake it a fewtimes to distribute the toner evenly.

Set the imaging cartridge on a clean, flat surface. Firmly grip the tab on theleft side of the cartridge. Pull the clear seal all the way out with firm, evenpressure, as shown

Figure 6-3. Removing theImaging Cartridge

Figure 6-4. Shaking the ImagingCartridge

Shake the imaging cartridge again.

Insert the imaging cartridge into the printer by placing the pins on each side ofthe cartridge into the grooves inside the printer. Slide it gently into theopening until it stops. Close the upper unit.


Maintenance

Figure 6-5. Removing the Clear Seal Figure 6-6. Inserting the ImagingCartridge

S e r v i c e M a i n t e n a n c e

This section describes the periodic service maintenance and cleaning required.

Periodic Service Maintenance

The following units require periodic service maintenance because they are subjectto fictional deterioration as the total number of printed pages increase, resultingin bad print quality.

Table 6-1. Periodic Service Maintenance

The service interval listed above is only a reference value. You do not need toperform service maintenance exactly at this time.

Cleaning

Some parts of this printer require regular cleaning. Clean each part using thespecified method and tools. (Refer to Chapter 3 for disassembly procedure s.)


Maintenance

Table 6-2. Cleaning Parts and Procedures


Appendix A

Contents

Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . .. A-3

Video Controller (C125MAIN) Board . . . . . . . . . . . . . . . . . . . . .. A-6Engine Controller Board (PWB-A Board) . . . . . . . . . . . . . . . . . . . . . A-14Power Supply Board (PWB-E Board). A-16High-Voltage Supply Board (PWB-F Board) . . . . . . . . . . . . . . . . . . . . . A-17Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-19

Circuit Board Component Layouts. . . . . . . . . . . . . . . . . . . . A-24Exploded Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . A-27

F i g u r e s

Figure A-l.Figure A-2.Figure A-3.Figure A-4.Figure A-5.Figure A-6.Figure A-7.Figure A-8.Figure A-9.Figure A-10Figure A-11

Cable Connections for the Video Controller . . . . . . . . . . . . . . . . . . .. A-3Cable Connec t ions fo r the Engine Sec t ion . . . . . . . . A-4C125 MAIN Board Circuit Diagram . . . . . . . . . . . . . . . . . . . A-19LocalTalk I/F Board Circuit Diagram . . . . . . . . . . .Cont ro l Pane l Ci rcu i t Diagram . . . . . . P W B - A B o a r d C i r c u i t D i a g r a m . . . . . Basic Circuit Diagram . . . . . . . . . . . . . . .C125 MAIN Board Component Layout (Front Side . .C125 MAIN Board Component Layout (Rear Side). .

Exploded Diagram l.. . . . . . . . . . . . . . . .....

A-21A-22A-23A-24A-25A-26A-27

Exploded Diagram 2 . . . . . . . . . A-28Figure A-12. Exploded Diagram 3 . . . . . . . . . . . . . . . . . . . . . . . . . A-29Figure A-13. Exploded Diagram 4 . . . . . . . . . . . . . . . . . . . . . . . . . A-30Figure A-14. Exploded Diagram 5 . . . . . . . . . . . . . . . . . . . . . . . . . A-31Figure A-15. Exploded Diagram 6 . . . . . . . . . . . . . . . . . . . . . . . . . A-32

Tables

Table A-1. Board Connector Summary . . . . . . . . . . . . . . . . . . A-5Table A-2 . CN3 Pin Ass ignments . . . . . . . . . . . . . . . . . . . A-6Table A-3 . CN4 Pin Ass ignments . . . . . . . . . . . . . . . . . . . A-9Table A-4. CN5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . .. A-9T a b l e A - 5 . C N 6 P i n A s s i g n m e n t s . . . . . . . . . . . . . . . . . A - 1 1Table A-6. CN7 Pin Assignments . . . . . . . . . . . . . . . . . . . . . A-11Table A-7. CN8,9 Pin Assignments . . . .. . . .. . . . . . . . . . . . . . A-12Table A-8. CN4 Pin Assignments . . . . . . . . . . . . . . . . . . . . A-14Table A-9. CN5 Pin Assignments . . . . . . . . . . . . . . . . . . . . A-14Table A-10. CN6 Pin Assignments . . . . . . . . . . . . . . . . . . . . . A-15Table A-11. CN7 Pin Assignments . . . . . . . . . . . . . . . . . . . . . A-15Table A-12. CN8 Pin Assignments (Also CN3 on PWB-E Board) . . . . . . . . . . . . A-15Table A-13. CN9 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . A-16Table A-14. CNll Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . A-16

EPSON ActionLaser 1600 Service Manual A-1

Appendix A

TableTableTableTable

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . .

A-2

A-15.A-16.A-17.A-18.

CN2CN4CN2CN3

PinPinPinPin

AssignmentsAssignmentsAssignmentsAssignments


A-16A-16A-17A-17

Appendix A

Connector Pin Assignments

Figures A-1 and A-2 illustrate the interconnection of the primary components.Table A-1 gives the size and a description of each connector.

Figure A-1. Cable Connections for theVideo Contro l ler Sect ion


Appendix A

A-4

Figu

re A

-2. C

able

Con

nection

s for

the

En

gine

Section

EP

SO

N A

ctionLaser 1600 Service M

anual

Appendix A

Table A-1. Board Connector Summary


Appendix A

Video Cont ro l l e r (C125 MAIN) Board

Table A-2. CN3 Pin Assignments

A-6 EPSON ActionLaser 1600 Service Manual

Appendix A

Table A-2. CN3 Pin Assignment (cont.)


Appendix A

Table A-2. CN3 Pin Assignments (cont.)


Appendix A




Appendix A

Table A-4. CN5 Pin Assignments (Cont.)


Appendix A




Appendix A


Table A-7. CN8,9 Pin Assignments


Appendix A

Table A-7. CN8,9 Pin Assignments (cont.)


Appendix A

Table A-7. CN8, 9 Pin Assignment (cont.)

Engine Contro l ler Board (PWB-A Board)




Appendix A



Table A-12. CN8 Pin Assignments (Also CN3 on PWB-E Board)


Appendix A



Power Supply Board (PWB-E Board)




Appendix A

High-Vol tage Supply Board (PWB-F Board)



EPSON ActionLaser 1600 Service Manual A - 1 7

Appendix A


Appendix A

Circuit Diagrams

Figure A-3. C125 MAIN Board Circuit Diagram


Appendix A


Appendix A

Figu

re A

-4. L

ocalTalk

I/F

B

oard

Circu

it D

iagram

EP

SO

N A


anualA

-21

Appendix A

Circu

it B

oard

Com

pon

ent

Layou

ts

Figu

re A

-8. C

125 M

AIN

B

oard

Com

pon

ent

Layou

t(F

ron

t S

ide)

EP

SO

N A


anualA

-25

Appendix A

Figure A-9. C125 MAIN Board Component Layout(Rear S ide)

EPSON ActionLaser 1600 Service ManualA-26

Appendix A

Exploded D

iagrams

Figu

re A

-10. E

xplod

ed

Diagram

1

EP

SO

N A


anualA

-27

Appendix A

A-28

Figu

re A

-11. E

xplod

ed

Diagram

2

EP

SO

N A


anual

Appendix A

Figu

re A

-12. E

xplod

ed

Diagram

3

EP

SO

N A


anualA

-29

Appendix A

Figu

re A

-14. E

xplod

ed

Diagram

5

EP

SO

N A


anualA

-31

Appendix A

A-32

Figu

re A

-15. E

xplod

ed

Diagram

6

EP

SO

N A


anual

Epson Action Laser 1600 Service

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