Star Lc-1511 1521 Technical Service Manual

DOT MATRIX PRINTER

LC-1511LC-1521

TECHNICAL MANUAL

[ SECOND EDITION ]

NOTICE• All rights reserved. Reproduction of any part of this manual in any

form whatsoever, without STAR’s express permission is forbid-den.

• The contents of this manual are subject to change without notice.• All efforts have been made to ensure the accuracy of the contents

of this manual at the time of going to press. However, should anyerrors be detected, STAR would greatly appreciate being in-formed of them.

• The above notwithstanding, STAR can assume no responsibilityfor any errors in this manual.

© Copyright 1996 Star Micronics Co.,Ltd.

INTRODUCTION

This manual describes the LC-1511,1521 dot matrix printer.It is designed for use as a reference for periodic inspections and maintenance procedures to be executed byservice personnel. It is not intended for the general user. Users of this manual should have a basic knowledgeand understanding of the English language.

• This manual is divided into the following sections:Chapter 1 General SpecificationsChapter 2 Theory of OperationChapter 3 AdjustmentsChapter 4 Parts ReplacementChapter 5 Maintenance and LubricationChapter 6 TroubleshootingChapter 7 Parts List

• First edition : Mar. 1996

Second edition : Aug. 1997

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CHAPTER 1GENERAL SPECIFICATIONS

1. General Specifications..........................................................................................3

2. External Appearance and Composition ..............................................................6

3. Control Panel .........................................................................................................8

3-1. Switch Combination Functions ............................................................................. 8

3-2. EDS Mode Settings ................................................................................................. 9

4. Parallel Interface..................................................................................................10

4-1. General Specifications ......................................................................................... 10

4-2. Connector Signals ................................................................................................ 10

5. Serial Interface (optional) ...................................................................................11

5-1. General Specifications ......................................................................................... 11

5-2. Connector Signal and Functional Descriptions (SPC-8K, IS-8H192) ............... 12

5-3. DIP Switch Settings (SPC-8K, IS-8H192) ............................................................ 12

6. EE-PROM mode ...................................................................................................13

6-1. Outline ................................................................................................................... 13

6-2. Explanation of special control codes ................................................................. 13

6-3. EE-PROM MAP ...................................................................................................... 14

6-4. Rewriting the EE-PROM ....................................................................................... 17

1

– 3 –

GENERAL SPECIFICATIONS

1. General Specifications

Printing System Serial Impact Dot-Matrix

Printing Speed Pitch Draft (cps/dpi) NLQ (cps/dpi)

LC-1521Pica (10 cpi)

300/120H (Normal)75/240H

400/90H (HS)

Elite (12 cpi) 360/120H 90/240H

Condensed pica (17 cpi) 255/240H 127/240H

Condensed elite (20 cpi) 300/240H 150/240H

LC-1511 Pica (10 cpi) 225/120H 56/240H

Elite (12 cpi) 270/120H 67/240H

Condensed pica (17 cpi) 191/240H 95/240H

Condensed elite (20 cpi) 225/240H 112/240H

H: half-dot

Print Direction Draft: Bi-directional logic seeking

NLQ: Uni-directional/ bi-directional logic seeking (selectable)

Bit-Image: Uni-directional/ bi-directional logic seeking (selectable)

Print Head Number of pins: 9

Life: 200 million dots/pin (Normal Mode)

100 million dots/pin (Multi-Part Mode)

Line Spacing 1/6”, 1/8”

7/72”, n/72”, n/216” : software

Character Matrix Pitch Draft NLQ

LC-1521Pica (10 cpi)

9 × 11H (Normal)18 × 23H

9 × 8H (HS)

Elite (12 cpi) 9 × 9H 18 × 19H

Condensed pica (17 cpi) 9 × 11H 18 × 12H

Condensed elite (20 cpi) 9 × 9H 18 × 10H

LC-1511 Pica (10 cpi) 9 × 11H 18 × 23H

Elite (12 cpi) 9 × 9H 18 × 19H

Condensed pica (17 cpi) 9 × 11H 18 × 12H

Condensed elite (20 cpi) 9 × 9H 18 × 10H

Environment Operating temperature: 41°F to 95°F (5°C to 35°C)

Storage temperature: –22°F to 149°F (–30°C to 65°C)

Operating humidity: 30% to 80% (non-condensing)

Storage humidity: 20% to 90% (non-condensing)

– 4 –


Paper Cut-sheet (manual feeding)

Paper width: 7” to 16.54” / 178 to 420 mm

Paper length: 5.5” to 14” / 140 to 356 mm

Paper thickness: 0.00276” to 0.00472” / 0.07 to 0.12 mm

Paper weight: 14 to 24 lbs. / 52 to 90 g/m2 / 45 to 77 kg

Cut-sheet (with optional automatic sheet feeder)

Paper size: B5, A4, LT, B4, A3, Legal

Paper thickness: 0.00315” to 0.00472” / 0.08 to 0.12 mm

Paper weight: 16 to 24 lbs. / 60 to 90 g/m2 / 52 to 77 kg

Hopper: 50 sheets of 64 g/m2

30 sheets of 80 g/m2

Stacker: 10 sheets

Fanfold (with push tractor feeder)

Paper width: 4” to 16.5” / 101.6 to 419 mm

Paper thickness: 0.00276” to 0.00433” / 0.07 to 0.11 mm (one-ply)

0.01378” / 0.35 mm maximum (total thickness of multi-ply

paper, non-carbon)

Paper weight: 14 to 22 lbs. / 52 to 82 g/m2 / 45 to 70 kg (one-ply)

11 to 14 lbs. / 40 to 52 g/m2 / 34 to 45 kg (multi-ply)

Copies: Original + 1 or 2 (Normal Mode)

Original + 3 or 4 (Multi-Part Mode)

* Multi-Part Mode is recommended when using optional

pull tractor unit.

Fanfold (with optional pull tractor feeder)

Paper width: 4” to 16.0” / 101.6 to 406 mm

Paper thickness: 0.00276” to 0.00433” / 0.07 to 0.11 mm (one-ply)

0.01378” / 0.35 mm maximum (total thickness of multi-ply

paper, non-carbon)

Paper weight: 14 to 22 lbs. / 52 to 82 g/m2 / 45 to 70 kg (one-ply)

11 to 14 lbs. / 40 to 52 g/m2 / 34 to 45 kg (multi-ply)

Copies: Original + 1 or 2 (Normal Mode)

Original + 3 or 4 (Multi-Part Mode)

Labels

Backing sheet: 4.5” to 16.5” / 114 to 419 mm

Thickness

Backing sheet: 0.00268” to 0.0035” / 0.07 to 0.09mm

Total: 0.0075” / 0.19mm max.

– 5 –


Emulation Standard Mode: EPSON ESC/P (9-pin)

IBM Mode: Proprinter III

Interface Standard: Centronics parallel

Option: RS-232C/RS-422 serial

Ribbon Type On-carriage, dedicated

Monochrome (Y9WH), Black only

Ribbon Life 2.5 million characters (Draft 10 cpi)

Power Supply 120V AC +10%/–17%, 230V AC +14%/–13%; 50/60Hz

(depending on country of purchase)

Power Consumption

LC-1521 11W during standby / 50W during ASCII draft printing

LC-1511 9W during standby / 30W during ASCII draft printing

Options PT-15HA Pull Tractor Unit

SF-15HA Single-Bin Automatic Sheet Feeder

IS-8H192 Serial Interface Unit

IS-32H768 Serial Interface Unit

SPC-8K Serial-To-Parallel Converter

Fig. 1-1 External dimensions

Weight : 18.3lbs/8.3kg

590mm 23.2"355mm

13.9"

186m

m

7.3

"

– 6 –


2. External Appearance and Composition

Fig. 1-3 Rear view of the Printer

Fig. 1-2 Front view of the Printer

Paper guide

Front cover

Interface connectorControl panel

Mute cover

Release lever

Power switch

Platen knob

– 7 –


Fig. 1-4 Front cover removed

Fig. 1-5 Diagram of internal layout

– 8 –


3. Control Panel3-1. Switch Combination Functions

BANKHS-DRAFT/DRAFT

A1

B2COURIER

FONT

BANK

C3

ROMAN

SANSERIF

ORATOR

PRESTIGE

10 CPISW

12 CPI

CONDE5

PROP

D4

F6

POWER

SWITCH

PITCH

ON/OFF

FORM FEED

STATUS PRINT

LINE FEED

EXIT

SET/EJECT PARK ON LINE

MICRO FEED

EDS

Font & Pitch Lock

EDS Mode

On-LineLine FeedForm FeedPitch Selection Set/Eject/ParkFont Selection

Off-LineTear off (Short) Tear off (Long) Quiet Mode

ForwardPanel Macro

Set TOF

Buffer Clear & All ResetOFF-LINE

ExitPrintSwitch StatusBank

POWER-ON

Exit

NextRightLeft

EDS MODE

DOT-ADJUSTMENT MODE

Short Test Long Test Multi-part ModeFont Lock

ON-LINE

Hex Dump ModePitch Lock

Dot-Adjustment Mode

On/Off

Micro FeedBack ward

Auto Loading Position Change Mode

Factory settings

CancelForwardPaper Loading Back ward

Save

Set

AUTO LOADING POSITION CHANGE MODE

Aging Mode

Dot-Adjustment Print Mode

EE-PROM Data Initialize

– 9 –


3-2. EDS Mode Settings

Bank Switch Function ON OFFA 1 Emulation STANDARD / EPSON IBM

2 Character Table (CT) Standard / EPSON mode Graphics ItalicsIBM mode IBM #2 IBM #1

3 RAM Usage Input Buffer Download Buffer4 Auto Sheet Feeder Not installed Installed5 Paper Out Enabled Disabled6 Multi-Part Mode Disabled Enabled

B 1 Graphics Direction Bi-directional Uni-directional2 Tear-off Disabled Enabled3 Line Spacing 1/6" 1/8"4 Auto LF with CR Disabled Enabled5 Zero Style Normal Slashed6 Strobe Timing Normal Reverse

C 1, 2 Print Mode

Draft ON ON

HS-Draft OFF ON

NLQ ON OFF

3,4,5 Print Pitch10cpi ON ON ON12cpi OFF ON ON17cpi ON OFF ON20cpi OFF OFF ONProportional ON ON OFF

6 Quiet Disabled Enabled

D 1,2,3,4 Page Length11"/Letter ON ON ON ON 14"/Legal OFF ON OFF ON8" OFF ON ON ON 10.5"/Executive ON OFF OFF ON11.7"/A4 ON OFF ON ON 7.25"/Executive OFF OFF OFF ON12" OFF OFF ON ON 3.5" ON ON ON OFF8.5"/Letter ON ON OFF ON 5.5" OFF ON ON OFF

5 CR Centering Position Long Short

E 1,2,3,4,5 IBM Code Page (CT=Graphics, IBM #1, #2)#437 ON ON ON ON ON #3844 ON OFF ON OFF ON#850 OFF ON ON ON ON #3845 OFF OFF ON OFF ON#860 ON OFF ON ON ON #3846 ON ON OFF OFF ON#861 OFF OFF ON ON ON #3847 OFF ON OFF OFF ON#863 ON ON OFF ON ON #3848 ON OFF OFF OFF ON#865 OFF ON OFF ON ON #852 OFF OFF OFF OFF ON#866 ON OFF OFF ON ON #737 ON ON ON ON OFF#3840 OFF OFF OFF ON ON #851 OFF ON ON ON OFF#3841 ON ON ON OFF ON #869 ON OFF ON ON OFF#3843 OFF ON ON OFF ON #928 OFF OFF ON ON OFF

International Character Set (CT=Italics)U.S.A. ON ON ON ON ON Japan ON ON ON OFF ONFrance OFF ON ON ON ON Norway OFF ON ON OFF ONGermany ON OFF ON ON ON Denmark-2 ON OFF ON OFF ONEngland OFF OFF ON ON ON Spain-2 OFF OFF ON OFF ONDenmark-1 ON ON OFF ON ON Latin America ON ON OFF OFF ONSweden OFF ON OFF ON ON Korea OFF ON OFF OFF ONItaly ON OFF OFF ON ON Ireland ON OFF OFF OFF ONSpain-1 OFF OFF OFF ON ON Legal OFF OFF OFF OFF ON

F 1, 2, 3, 4, 5 NLQ Font SelectionRoman ON ON ON ON ONSanserif OFF ON ON ON ONCourier ON OFF ON ON ONPrestige OFF OFF ON ON ONOrator OFF OFF OFF ON ON

OptionScript ON ON OFF ON ON Cinema ON OFF OFF OFF ONOCR-B OFF ON OFF ON ON Code 39 OFF OFF OFF OFF ONOCR-A ON OFF OFF ON ON UPC/EAN ON ON ON ON OFFOrator-2 ON ON ON OFF ON Old-Stile OFF ON ON ON OFFTW-Light OFF ON ON OFF ON Firenze ON OFF ON ON OFFL-Gothic ON OFF ON OFF ON Arabic Naskh OFF OFF ON ON OFFBlippo OFF OFF ON OFF ON Arabic Koufi ON ON OFF ON OFFH-Gothic ON ON OFF OFF ON Arabic Naskh-EilaniOFF ON OFF ON OFFOrane OFF ON OFF OFF ON

– 10 –


4. Parallel Interface4-1. General Specifications

Item Specifications

Interface Centronics-compatible

Synchronization System Via externally supplied STROBE pulse

I/F Protocol Using ACK and BUSY signals

Logic Level Compatible with TTL level

These signals represent information for the 1st through 8th bit of

parallel data, respectively. Each signal is HIGH when data is logical 1,

and LOW when logical 0.

Fig. 1-6 Timing Charts for Parallel Interface4-2. Connector Signals

Pin Name Function1 STROBE Goes low for ≥ 0.5µs when active.

2 DATA0

3 DATA1

4 DATA2

5 DATA3

6 DATA4

7 DATA5

8 DATA6

9 DATA7

10 ACK 10µs low to acknowledge receipt of data.

11 BUSY Printer sets line low when ready to receive data.

12 PAPER High when paper runs out.

13 SELECT High when printer is on-line.

14 AFXT Printer ignores this signal.

15 Not used.

16 SIGNAL GND Signal ground

17 CHASSIS Chassis ground (isolated from signal ground)

18 +5V +5V DC output from printer

19~30 GND Twisted pair ground return

31 RESET Printer is reset when this signal goes low.

32 ERROR Low when printing cannot continue due to error.

33 EXT GND External ground

34~35 Not used

36 SELECT IN Printer ignores this signal.

ACK

Data

STROBE(EDS B-6 : ON)

STROBE(EDS B-6 : OFF)

BUSY

5µs

t : More than 0.5µs

5µst t t t

– 11 –


5. Serial Interface (optional)When using the serial interface, the optional Serial-Parallel Converter must be connected to the printer.

5-1. General Specifications(SPC-8K)

Interface RS-232C-levelSynchronization AsynchronousBaud rate 150, 300, 600, 1200, 2400, 4800, 9600, 19200 BPS (selectable)Word length

Start bit 1Data bits 7 or 8 (selectable)Parity bit Odd, even, none (selectable)Stop bits One or more

Signal polarityMark Logical 1 (-3V to -15V)Space Logical 0 (+3V to +15V)Handshaking DTR, XON/XOFF, ETX/ACKData buffer 8 kbytes (standard)

(IS-8H192)Interface RS-232C-level onlySynchronization AsynchronousBaud rate 150, 300, 600, 1200, 2400, 4800, 9600, 19200 BPS (selectable)Word length


Signal polarityMark Logical 1 (–3V to –15V)Space Logical 0 (+3V to +15V)Handshaking DTR, XON/XOFF, ETX/ACKData buffer 8 kbytes (standard)

(IS-32H768)

RS-232C InterfaceSynchronization AsynchronousBaud rate 150, 300, 600, 1200, 2400, 4800, 9600, 19200 BPS (selectable)Word length


Signal polarityMark Logical 1 (–3V to –15V)Space Logical 0 (+3V to +15V)Handshaking DTR, XON/XOFF, ETX/ACKData buffer 32 kbytes (standard)

RS-422A InterfaceSynchronization AsynchronousBaud rate 150, 300, 600, 1200, 2400, 4800, 9600, 19200 , 38400, 76800 BPS (selectable)Word length


Signal polarityMark Logical 1 (A is –0.2 V or less than B)Space Logical 0 (A is +0.2 V or more than B)Handshaking DTR, XON/XOFF, ETX/ACKData buffer 32 kbytes (standard)

– 12 –


5-2. Connector Signal and Functional Descriptions (SPC-8K, IS-8H192)

Pin No. Signal name Direction Function

1 GND —

2 TXD OUT

3 RXD IN

4 RTS OUT

5 CTS —

6 NC

7 GND —

8~10 NC

11 RCH OUT

12~19 NC

20 DTR OUT

21~25 NC

5-3. DIP Switch Settings (SPC-8K, IS-8H192)

Switch ON OFF

1 8 data bits 7 data bits

2 No parity Parity checked

3

4

5 Odd parity Even parity

6

7 Data transfer rate – see table below

8

All switches are set to ON before the printer leaves the factory.

Protocol Switch 3 Switch 4

DTR mode ON ON

XON/XOFF mode ON OFF

ETX/ACK mode OFF ON

Baud rate Switch 6 Switch 7 Switch 8

150 OFF OFF OFF

300 OFF OFF ON

600 OFF ON OFF

1200 OFF ON ON

2400 ON OFF OFF

4800 ON OFF ON

9600 ON ON OFF

19200 ON ON ON

Handshaking protocols – see table below

Printer chassis ground.

This pin carries data from the printer.

This pin carries data to the printer.

Always space.

This signal is space when the computer is ready to send data.The printer does not check this pin.

Unused.

Signal ground.

Unused.

The printer sets this signal to space when it is ready to receive data.This line carries the same signal as pin 20.

Unused.

The printer sets this signal to space when it is ready to receive data.

Unused.

– 13 –


6. EE-PROM mode6-1. OutlineThese settings can be changed in the EE-PROM mode by writing data directly to the EE-PROM on the main logic board:

Setting EE-PROM mode• Send <ESC><SUB>(09)H command.

Canceling EE-PROM mode• Initialize the printer by sending <ESC>@

6-2. Explanation of special control codes

<ESC>@ Exits printer from EE-PROM mode and initializes the printer.

<ESC>M@ Returns all data in the EE-PROM to the factory settings. After the buffer is cleared, the buzzer sounds. Ifthe printer is powered off before the buzzer sounds, all data in the buffer is not cleared.If all data is not cleared from the buffer, operation is not guaranteed. Be sure to allow the buzzerto sound before you turn the printer off!

<ESC>MWnCode Function Address Capacity

<ESC>MW0 <data> Stores data into entire area of EE-PROM. 00H-7FH 128bytes

<ESC>MW1nm Stores data (m) into the address (n) nH 1 byte

<ESC>MW2<data> Stores auto-start software data into 40H-5EH 30bytesEE-PROM. 5FH-7DH 30bytes

• The data (m) used in the commands above are stored in the specified address in order (n).• When the data to be stored exceeds the specified capacity, subsequent data are ignored.• Data are stored in the EE-PROM according to the memory map. (See section 3. EDS mode setting and

6-3. EE-PROM Map.)• After all data are stored, a beep indicates the completion of storage.• If the printer is powered off during data storage, data stored before power off are valid, but subsequent

operation of the printer is not guaranteed.Do not power off the printer while data is being stored!

<ESC>MR Dumps all data in the EE-PROM to a hard copy.For an example of using these control codes, see section 6-4. For the corresponding EE-PROM addresses, see theEE-PROM memory map in section 3-2. EDS mode setting and 6-3 EE-PROM Map.

– 14 –


6-3. EE-PROM MAP

Address Function Factory data

00H EDS setting FFH

Bit Function 1 0b0 Emulation STANDARD/EPSON IBM

Character Tableb1 Standard / EPSON mode Graphics Italics

IBM mode IBM #2 IBM #1b2 RAM Usage Input Buffer Download Bufferb3 Auto Sheet Feeder Not installed Installedb4 Paper out Detector Enabled Disabledb5 Multi-Part Mode Disabled Enabled

01H EDS setting FFH

Bit Function 1 0b0 Graphics Direction Bi-directional Uni-directionalb1 Tear-off Disabled Enabledb2 Line Spacing 1/6" 1/8"b3 Auto LF with CR Disabled Enabledb4 Zero Style Normal Slashedb5 Strobe Timing Normal Reverse

02H EDS setting FFH

Print Mode Print Pitch

Function b0 b1 Function b2 b3 b4Draft 1 1 10cpi 1 1 1HS-Draft 0 1 12cpi 0 1 1NLQ 1 0 17cpi 1 0 1

20cpi 0 0 1Proportional 1 1 0

Bit Function 1 0b5 Quiet Disabled Enabled

03H EDS setting FFHPage Length

Function b0 b1 b2 b3 Function b0 b1 b2 b311"/Letter 1 1 1 1 14"/Legal 0 1 0 18" 0 1 1 1 10.5"/Executive 1 0 0 111.7"/A4 1 0 1 1 7.25"/Executive 0 0 0 112" 0 0 1 1 3.5" 1 1 1 08.5"/Letter 1 1 0 1 5.5" 0 1 1 0

Bit Function 1 0b4 CR Centering Position Long Short

– 15 –


04H EDS setting FFHIBM Code Page (Character Table=Graphics, IBM#1, #2)

Function b0 b1 b2 b3 b4 Function b0 b1 b2 b3 b4#437 1 1 1 1 1 #3844 1 0 1 0 1#850 0 1 1 1 1 #3845 0 0 1 0 1#860 1 0 1 1 1 #3846 1 1 0 0 1#861 0 0 1 1 1 #3847 0 1 0 0 1#863 1 1 0 1 1 #3848 1 0 0 0 1#865 0 1 0 1 1 #852 0 0 0 0 1#866 1 0 0 1 1 #737 1 1 1 1 0#3840 0 0 0 1 1 #851 0 1 1 1 0#3841 1 1 1 0 1 #869 1 0 1 1 0#3843 0 1 1 0 1 #928 0 0 1 1 0

International Character Set (Character Table=Italics)

Function b0 b1 b2 b3 b4 Function b0 b1 b2 b3 b4U.S.A. 1 1 1 1 1 Japan 1 1 1 0 1France 0 1 1 1 1 Norway 0 1 1 0 1Germany 1 0 1 1 1 Denmark-2 1 0 1 0 1England 0 0 1 1 1 Spain-2 0 0 1 0 1Denmark-1 1 1 0 1 1 Latin America 1 1 0 0 1Sweden 0 1 0 1 1 Korea 0 1 0 0 1Italy 1 0 0 1 1 Ireland 1 0 0 0 1Spain-1 0 0 0 1 1 Legal 0 0 0 0 1

05H EDS setting FDHNLQ Font Selection Option

Function b0 b1 b2 b3 b4 Function b0 b1 b2 b3 b4

Roman 1 1 1 1 1 Script 1 1 0 1 1Sanserif 0 1 1 1 1 OCR-B 0 1 0 1 1Courier 1 0 1 1 1 OCR-A 1 0 0 1 1Prestige 0 0 1 1 1 Orator-2 1 1 1 0 1Orator 0 0 0 1 1 TW-Light 0 1 1 0 1

L-Gothic 1 0 1 0 1Blippo 0 0 1 0 1H-Gothic 1 1 0 0 1Orane 0 1 0 0 1Cinema 1 0 0 0 1Code 39 0 0 0 0 1UPC/EAN 1 1 1 1 0Old-Style 0 1 1 1 0Firenze 1 0 1 1 0Arabic Naskn 0 0 1 1 0Arabic koufi 1 1 0 1 0Arabic Naskn-Eilani 0 1 0 1 0

06H (Not used) 00H07H Misalignment correction 090 DPI (H) 80H08H Misalignment correction 120 DPI (H) 80H09H Misalignment correction 120 DPI (H) Graphics 80H0AH Misalignment correction 144 DPI (H) 80H


– 16 –


0BH Misalignment correction 240 DPI (H) 80H0CH Misalignment correction 240 DPI (H) Graphics 80H0DH Misalignment correction 060 DPI (F) 80H0EH Misalignment correction 072 DPI (F) 80H0FH Misalignment correction 080 DPI (F) 80H10H Misalignment correction 090 DPI (F) 80H11H Misalignment correction 120 DPI (F) 80H12H (Not used) 00H13H Misalignment correction Multi-part Mode 090 DPI (H) 80H14H Misalignment correction Multi-part Mode 120 DPI (H) 80H15H Misalignment correction Multi-part Mode 120 DPI (H) Graphics 80H16H Misalignment correction Multi-part Mode 144 DPI (H) 80H17H Misalignment correction Multi-part Mode 240 DPI (H) 80H18H Misalignment correction Multi-part Mode 240 DPI (H) Graphics 80H19H Misalignment correction Multi-part Mode 060 DPI (F) 80H1AH Misalignment correction Multi-part Made 072 DPI (F) 80H1BH Misalignment correction Multi-part Made 080 DPI (F) 80H1CH Misalignment correction Multi-part Made 090 DPI (F) 80H1DH Misalignment correction Multi-part Made 120 DPI (F) 80H

1EH~2AH (Not used) 00H2BH, 2CH Top Margin in Auto-loading Friction 48H

00H2DH, 2EH Top Margin in Auto-loading Tractor 48H

00H2FH, 30H Top Margin in Auto-loading ASF 48H

00H31H Paper End Sensor A/D Valve 99H

32H~35H Macro set for Standard/EPSON Mode 00H

00H36H~39H Macro set for IBM Mode 00H

00H3AH, 3BH TEAR OFF (Short) 00H

80H3CH, 3DH TEAR OFF (Long) 00H

80H3EH, 3FH IBM Initial Condition Area FFH

FFH40H~5EH Auto Start Area for Standard/EPSON Mode 00H

00H5FH~7DH Auto Start Area for IBM Mode 00H

00H7EH <FF> Control Code (00H = Space / 0FH = Null) 00H7FH EE-PROM Check Code 01H


– 17 –


6-4. Rewriting the EE-PROMFollow this procedure to rewrite the EE-PROM.

(1) Turn the printer on.

(2) Turn the computer on.

(3) Load a BASIC disk in the computer.

(4) Set a sheet of paper in the printer, and press the SET switch.

(5) Enter the program listed below and run the program.10 LPRINT CHR$(27);CHR$(26);CHR$(&H09)20 LPRINT CHR$(27);”MW1";CHR$(&H01);CHR$(&HFB)30 LPRINT CHR$(27);”MR”

BASIC Program Code What It Does10 LPRINT CHR$(27);CHR$(26);CHR$(&H09) Enters the EE-PROM mode.

20 LPRINT CHR$(27);”MW1"; Starts rewriting the EE-PROM.

CHR$(&H01); Address data from &H01 will showEDS mode from the EE-PROM memorymap.

CHR$(&HFB) Data from &HFB will change the Linespacing from 1/6" to 1/8".

30 LPRINT CHR$(27);”MR” Dumps all EE-PROM data to hexadeci-mal.

(6) To complete the setting, turn the printer off.

CHAPTER 2THEORY OF OPERATION

1. Block Diagram .....................................................................................................21

2. General Flow Chart (Main Logic Board) ............................................................22

3. Power Supply Circuit ..........................................................................................23

4. Mechanism ...........................................................................................................24

4-1. Print Head Mechanism ......................................................................................... 24

4-2. Print Head Carrying Mechanism ......................................................................... 25

4-3. Ink ribbon feed mechanism ................................................................................. 26

4-4. Paper Feed Mechanism ........................................................................................ 27

4-5. Detectors ............................................................................................................... 28

2

– 21 –

THEORY OF OPERATION

1. Block DiagramThe block diagram of this printer is shown in Fig. 2-1.

Fig. 2-1 Block Diagram

(1) Main Logic BoardThis board receives data from the host computer and stores it in the RAM in the order it arrives. The CPU on thisboard reads the data from the RAM, and edits it according to the program stored in the ROM.When editing is completed, various drive signals from the CPU are sent to the printer mechanism to performprinting.Explanation• CPU TMP90C041Controls this printer.• UVE-PROM 1M bitContains the program which executes control of the printer. UVE-PROM is not provided with some versions of the software.• Masked ROM 2M bitContains the character font.• EE-PROM KM93C46 64 × 16 bitsContains the data (EDS data and so on) in the memory switch.• RAM 512K bitUsed as a stack area, work area and data buffer of the CPU.• Parallel interface• Gate array (custom IC)Inputs/outputs several signals.• DriverThe data edited by the CPU and gate array are sent to the printer mechanism after conversion to the signal for theprint head drive and motor drives.

(2) Control panel boardPanel circuit for manual control of the printer.

(3) Printer MechanismConsists of a print head, carriage motor, paper feed motor, and detectors.

(4) Power Supply UnitConverts AC power to LC-1511:33VDC , LC-1521:35VDC and 5VDC.

Data (From Host Computer)

LED

Switch

Control panel board

Power supply unit

AC Power

Parallel interface Driver

Gate array

CPU

Driver

RAM

Masked ROM 2M

EE-PROM

Paper feed motor

Carriage motor

Print head

Main logic boardPrinter mechanism

Detectors

UVE-PROM

1M

– 22 –

THEORY OF OPERATION

Fig. 2-2 General Flow Chart of Editing and Printing

2. General Flow Chart (Main Logic Board)The flow chart below shows you the general flow of editing and printing operations.

POWER ON

Initialization

Ready state

Read data

Control code? No

YES

Control code processing

Data storage

Print?

YES

NO

Data processing or printing

Return?

Return action

YES

NO

(Line buffer determination)

(Print out of data)

– 23 –

THEORY OF OPERATION

3. Power Supply CircuitA ringing choke converter type circuit is used with a dropper type circuit in the power supply unit, fulfilling the input andoutput conditions described in the chart below.

Fig. 2-3 Power Supply unit block diagram

Voltage Range Max. Current Output Service Circuit Type

Input110,120VAC 1.0 A

220Vto 240VAC 0.6 A

5 VDC ±5% 0.4 A Dropper

33 VDC ±5%(LC-1511) 1.25A(LC-1511) Ringing choke

35 VDC ±5%(LC-1521) 3.4A (LC-1521) converter.

For logic circuitdrive, for motorholding.

For print headdrive, for motordrive.

Output

Input

110VAC 120VAC 220VAC 230VAC 240VAC

Noise filter circuit

In rush current protection circuit

Rectifier circuit

Switching section (Transistor Q1)

Ringing choke converter

Dropper circuit

Voltage reference

Control circuit

Transformer T1

PC1

Photo-Coupler

Out put 33V DC ; LC-1511 35V DC ; LC-1521

Out put 5V DC

– 24 –

THEORY OF OPERATION

4. Mechanism4-1. Print Head MechanismThe print head consists of 9 needle wires and 9 print solenoids. The following explains how each needle wireoperates during printing.(1) When the print solenoid is energized, the clapper is attracted by the iron core and the needle wire is driven toward

the platen.(2) This needle wire hits the platen via the ink ribbon and paper. A single dot is printed on the paper.(3) When the print solenoid is de-energized, the needle wire is returned to its original position by rebound energy and

spring and clapper holder (leaf spring) force.

Fig. 2-4 Outline of Print Head Mechanism

Stopper

Spring

Needle wire

Subguide

Guide

Ink ribbon

Paper guide

PaperPlaten

Iron core

Print solenoid

Clapper

Clapper holder

– 25 –

THEORY OF OPERATION

4-2. Print Head Carrying MechanismThe print head carrying mechanism consists of a carriage, timing belt, carriage motor, and home position detector.

CarriageThe carriage is supported horizontally by the carriage stay and rear angle. The carriage moves from side to side withthe print head mounted above it. A timing belt is clamped to the base of the carriage and a shield plate is mountedat the base for home position detection.Timing BeltThe timing belt is suspended between the timing pulley of the carriage motor and the timing pulley of the tensionlever. The timing belt maintains a constant tension.The timing belt is also clamped to the base of the carriage so that it can move the carriage accurately with drivingforce from the carriage motor.Carriage MotorThe carriage motor is a PM (permanent magnet) 4-phase, 48-pole pulse motor driven by pulse signals from thecontrol circuit. The rotational rate depends on the number of pulses per unit time. By varying this rotational rate(carriage carrying rate), the size of the horizontal letters can be changed in each print mode.

Fig. 2-5 Print Head Carrying Mechanism

– 26 –

THEORY OF OPERATION

Fig. 2-6 Ribbon feed mechanism

4-3. Ink ribbon feed mechanismThe ink ribbon feed mechanism is linked to the print head carrying mechanism so the ink ribbon always windsautomatically in the same direction while the carriage moves left and right.The movement of the carriage along the serrated edge of the rear angle of the printer mechanism drives the idler gear. Therotation of the idler gear is conveyed sequentially to the gears that work and wind the ribbon. The carriage has a clutchlever that keeps the direction of the cassette gear rotation constant, regardless of the direction of the idler gear rotationas the carriage moves left and right.

– 27 –

THEORY OF OPERATION

Fig. 2-7 Paper Feed Mechanism

4-4. Paper Feed MechanismThe paper feed mechanism consists of a paper feed motor, an idler gear, a platen and a traction unit.The paper feed motor is a PM (Permanent Magnet) 4-phase and 48 pulse motor.There are two ways of feeding paper into the printer: the friction method and the tractor method. You can select themethod you want to use by setting the release lever on the push tractor unit.

Position of release lever [1] [2]

Linkage between tractor gearNot linked Linked

and PF idler gear

Platen roller and Pinch roller Pressed Not

Release lever position detector OFF ON

Paper feeding method Friction Tractor

(1) Friction MethodFriction method is selected when the release lever is position [1].With this method, paper is pressed between the Platen roller and the Pinch roller therefore, paper is fed as the rollersturn.As the paper feed motor is driven, the motor gear, through the idler gear, turns the platen gear in the paper feedingdirection. However, since the tractor gear and the PF idler gear are not linked at this time, the tractor unit will notbe driven.

(2) Tractor MethodTractor method is selected when the release lever is position [2].Paper feeding is facilitated by rotation of the sprocket pin of the tractor unit. When the tractor method is selected,the tractor gear is linked to the PF idler gear, enabling the drive force generated by the paper feed motor to betransferred to the tractor unit via the idler gear.

– 28 –

THEORY OF OPERATION

4-5. Detectors(1) Print head temperature detectors

The A/D converter in the CPU detects the print head temperature at power on and before each line begins to print.

Fig. 2-8 Printer head temperature detector circuit

Control Method (by Text printing)

Print Temperature °C(LC-1511) (LC-1521)

Normal print ~ 120 ~ 110

Unidirectional print 120 ~ 130 110 ~ 130

Print Stop Over 130 Over 130

(2) Home Position DetectorA photo-interrupter is used in the home detector on the printer.ON/OFF signals are generated according to the position of the carriage. (Shield plate mounted at the base of thecarriage.) The printing position is determined by these signals.

Fig. 2-9 Carriage home position detector circuit

Output (V) Decision5 in home position (with shield plate)

0 not in home position (without shield plate)

+5V +5V

CPU

AN1

VREF

Thermistor

R2

L1

L2

R1

+5V

R2R1

C1

R3+5V

Detecting signal

– 29 –

THEORY OF OPERATION

(3) Paper end DetectorThe paper end Detector is located in the paper chute unit. The A/D converter in the CPU detects the presence orabsence of paper.

Fig. 2-10 Paper end detector circuit

(4) Release lever switch

Fig. 2-11 Release lever switch circuit

Control Method

0 Tractor

5 Friction

Output(V)

ReleaseLever SW

VRef

AN

CPU

+5V

+5V

R2

C1 R3

Paper

R1

Detecting signal

+5V

Leaf switch

R2

R1

CHAPTER 3ADJUSTMENTS

This printer has undergone various adjustments so that it will attain a given standard of performance.In this chapter, a brief explanation is given of the methods for making adjustments.Follow the instructions when performing maintenance inspections or when replacing parts to correctmalfunctions.

1. Adjustment of Gap Between Print Head and Platen ........................................33

2. Adjustment of Timing Belt Tension ...................................................................34

3. Dot Adjustment....................................................................................................35

4. Adjustment of Paper end detector..................................................................... 36

3

– 33 –

ADJUSTMENTS

1. Adjustment of Gap Between Print Head and Platen(1) Remove the Printer cover and ribbon holder [1].(2) Loosen nut [3] using jig [2].(3) Adjust the head gap at the specified left and right positions (two places).

* Adjust by moving jig [5] forward or backward.* Use bushing [4] to adjust the gap on the left side until it equals that on the right side.

Gap adjustment values:LC-1511 0.34 to 0.40mmLC-1521 0.30 to 0.35mm

Be sure to adjust with the rear cover installed. (Adjustment with rear cover off will increase the gap by about 0.1mm.)(4) Hold jig [5] in place and push jig [2] toward the rear so as to tighten nut [3].(5) Confirm that the setting is correct.

Fig. 3-1 Mechanism

Fig. 3-2 Positioning the carriage unit Fig. 3-3 Gap measurement

55mm 55mmPlaten [6]

Carriage [7]

L R

gauge [8]

Platen [6]

Head gap

LC-1511 … 0.34~0.40mm LC-1521 … 0.30~0.35mm

– 34 –

ADJUSTMENTS

2. Adjustment of Timing Belt Tension(1) Remove the upper case unit according to the procedures described in chapter 4.(2) Loosen screw [1].(3) Move the carriage [2] once from left to right, then return it to the left.(4) Set the tension gauge [3] to the position indicated in Fig. 3-5 below.(5) Using a regular screwdriver, move tension lever [4] to the right until it matches the minimum tension setting

(23.0 if LC-1511; 28.0 if LC-1521).(6) Tighten screw [1].(7) Confirm that the setting is correct.(8) Remove tension gauge [3]. Move the carriage [2] all the way to the right and then back to the left, and check the

setting once again.

Fig. 3-5 Positioning the carriage unit Fig. 3-6 Measuring tension

Fig. 3-4 Gap measurement

0~10mm

Gauge lever position

Platen

Timing belt

– 35 –

ADJUSTMENTS

3. Dot AdjustmentDot adjustment can be carried out from either the panel or the SETUP application.

(1) Correction values

(2) Correction Mode

HS-DRAFT 90DPI (H)

DRAFT 120DPI (H) Text

Double-Density / Speed 120DPI (H) Graphics

Double-Desity Plotter GFraphics 144DPI (H)

NLQ 240DPI (H) Text

Quadruple-Density 240DPI (H) Graphics

Normal Density 60DPI (F)

Plotter-Graphics 72DPI (F)

CRT Graphics-I 80DPI (F)

CRT Graphics-II 90DPI (F)

Double-Density 120DPI (F)

(3) Adjustment from the panel

■ Selecting “DOT ADJUSTMENT” mode.Switch on the power while holding down both the FORM FEED SW [13] and the ON-LINE SW [15].

■ Setting the value and exiting the mode.FONT SW [10]: Adjust toward left (negative adjustment).PITCH SW [11]: Adjust toward right (positive adjustment).S/E/P SW [12]: Advance to next adjustment mode.ON-LINE SW [15]: Terminate DOT ADJUSTMENT mode.

Pressing this switch terminates the mode and registers the new setting. If you terminate themode without using this switch, the new setting will be lost.

72H

–14 –13 –12 –11 –10 –9 –8 –7 –6 –5 –4 –3 –2 +2 +3 +4 +5 +6 +7

14/720 (inch)

+8 +9 +10 +11 +12 +13

7FH

–1

80H

0

81H

+1

8EH

+14

–14/720 (inch)

[1] BANK

[3] A 1

[4] B 2

[5] C 3

[2]SW

[6]D 4POWER

[7]E 5

[8]F 6

FONT

[10]

BANK

PITCH

[11] [12]

SWITCH

SET/EJECT PARK

STATUS

FORM FEED

[13]

ON/OFF

ON LINE

[15]

EXIT

LINE FEED

[14]

PRINTEDS

MICRO FEED

[9]

– 36 –

ADJUSTMENTS

4. Adjustment of Paper end detectorAfter replacing the paper-end detector, adjust the new detector as described here. First enter the dedicated command, thenflow chart below.

Dedicated command: <ESC> <SUB> (50)H n Automatic Sheet Feeder ; n=01Tractor and Friction ; n=01

No

Yes

Tractor

Friction

E

E

Yes

No No

Send LPRIN CHR$(27);CHR$(26);

CHR$(&H50);CHR$(01) command

n = 01 ?

Tractor or Friction ?

Paper eject

Paper out?

Enter paper-out value (A)

Loading cut-sheet paper

Paper in?

E E

E

No

Yes

Yes

Tractor

Yes

Friction

A B C

No

YesYes

No No

Tractor or Friction ?

Paper Park

Paper out?


Loading fanfold paper

Paper in?

Paper eject

Paper out?


Press paper feed switch

Loading cut-sheet paper

– 37 –

ADJUSTMENTS

A B C

Paper in? E

No

Yes

No

Adjustment error / New valuenot recorded (3beeps)

Enter paper-in value (B)

Find average (center value) of(A) and (B)

Nomal range?

YES

Print the new Paper enddetector A/D value

** PAPER END SENSOR : **

Register the new Paper enddetector A/D value (1 beep)

Fanfold paper: From feedCut-sheet paper: Eject paper

E

CHAPTER 4PARTS REPLACEMENT

This chapter explains disassembly and reassembly of the printer. Note the following regarding disassemblyand reassembly.1. Disconnect the printer from the wall outlet before servicing it.2. Assy is the reverse of disassembly unless otherwise specified.3. After reassembly, coat the screw heads with locking sealant.4. Lubrication information is not provided in this chapter. Refer to section 2 in chapter 5.

1. Push Tractor Unit ................................................................................................41

2. Upper Case Unit ..................................................................................................41

3. Printer Machanism ..............................................................................................42

4. Main Logic Board Unit ........................................................................................ 42

5. Power Supply Unit ...............................................................................................43

6. Fuse ......................................................................................................................43

7. Print Head ............................................................................................................44

8. Carriage Motor Unit .............................................................................................45

9. Platen Unit ............................................................................................................45

10. Detector Unit ........................................................................................................46

4

– 41 –

PARTS REPLACEMENT

(1) Turn OFF the power switch.(2) Remove the power cord from the AC output socket.(3) Remove

• Printer cover• Rear cover unit [1]• Push tractor unit [2]

Set the release lever [3] to FRICTION.Lift the hook [4] at each side of the push tractor.

1. Push Tractor Unit

2. Upper Case Unit(1) Remove

• Push tractor unit as described above1.• Platen knob unit [1]• Four screws [2]

(2) Move the carriage unit to the right.(3) Remove

• Upper case unit [3]Pull the upper case unit [3] forward and remove itfrom the hooks [4].

• Control board [5]Detach the two hooks.

Caution regarding assembly;• When carrying out reassembly, pay due attention to

the upper case unit’s internal sheet and the mecha-nism’s detector.

– 42 –

PARTS REPLACEMENT

Ground spring

7.3m

m

Main logic board

θ

Control board

θ ±10° <=

12.5mm max.1.3mm max.

(Height for TR14,15,16)

(LED angle)

CN6

CN5

Cross over

Slide into position.

(1) Remove• Upper case unit as described above 2.

(2) Move the carriage unit to the left.(3) Remove

• Cable holder [1]• Two head cable [2]• Six screws [3]• Two screws [4]• Printer mechanism [5]

Remove the connectors from the main logic board.

Caution regarding assembly;

• Cross CN5 over whenconnecting.

• Attach the head cable [2]as illustrated at right.

3. Printer Machanism

4. Main Logic Board Unit(1) Remove

• Printer mechanism as described above 3• Connector [1]• Four screws [2]• Home position board [3]• Main logic board unit [4]

Caution regarding assembly;• Be sure that the height and angle of the main-logic-

board transistors (TR14, 15, 16) and the control-board LEDs are within the limits indicated below.

• Be sure that the ground spring at the rear of the mainlogic board has a height of at least 7.3mm.

– 43 –

PARTS REPLACEMENT

5. Power Supply Unit

6. Fuse

(1) Remove• Upper case unit as described above 2.• Three screws [1]• Screw [2]• Power supply unit [3]

(1) Remove• Upper case unit as described above 2.

(2) Inspect• Fuse F1Defective → Replace fuse as follows:

LC-1511

AC voltage Fose Type

110/120V 5TT2A-250V

220V to 240V 215-1A-250V

LC-1521

AC voltage Fose Type

110/120V 5TT5A-125V

220V to 240V 215-2.5A-250V

– 44 –

PARTS REPLACEMENT

7. Print Head(1) Remove

• Top guide unit [1]• Colour ribbon holder assy [2]• Cable holder [3]• Ribbon holder [4]• Two screws [5]• Print head [6]

WARNINGThe print head gets hot after printing.Do not touch it until it cools.

(2) Adjust• Gap between print head and platen. Refer to

section 1 of Chapter 3.

Note:Fold the head cables according to the dimensions shown below.

9 1

Connector face

82 1Size : mm

90°

0.5°

– 45 –

PARTS REPLACEMENT

8. Carriage Motor Unit(1) Remove

• Printer mechanism as descrbed above 3.(2) Loosen the screw [1].(3) Remove

• Two screws [2]• Carriage motor unit [3]

(4) AdjustFor details about belt-tension adjustment, refer tosection 2 of Chapter 3.

9. Platen Unit(1) Remove

• Upper case unit as described above 2.• Top guide unit [1]• Stack guide unit [2]The stack guide unit may break if it is forcibly re-moved. Therefore, hold the gears tightly when remov-ing the stack guide unit.• Idler gear [3]• PF idler gear [4]• Spring [5]• Stop ring [6]• Platen unit [7]Move the platen holder as shown in the diagram belowand remove the platen unit.

Platen Holder

Fig.aFig.b

– 46 –

PARTS REPLACEMENT

(1) Remove• Platen unit as described above 9.

(2) Turn over the printer mechanism.(3) Remove

• Paper chute unit [1]Remove the nine paper sheet hooks [3] on the bottomof the frame base assembly [2] and remove the Paperchute unit [1].• Detector unit [4]

10. Detector Unit

CHAPTER 5MAINTENANCE AND LUBRICATION

1. Maintenance .........................................................................................................49

1-1. Cleaning ................................................................................................................ 49

1-2. Checks ................................................................................................................... 49

2. Lubrication ...........................................................................................................50

2-1. Lubricant ............................................................................................................... 50

2-2. Lubricating Method .............................................................................................. 50

2-3. Lubricated Areas .................................................................................................. 50 5

– 49 –

MAINTENANCE AND LUBRICATION

1. MaintenanceIn order to maintain the optimum performance of this printer and to prevent trouble, maintenance must be carried outaccording to the following items.

1-1. Cleaning(1) Removal of dirt

Wipe off dirt with a soft cloth soaked in alcohol or benzine.Note: Do not use thinner, trichlene or ketone solvents because they may damage plastic parts. Also during

cleaning, be careful not to moisten or damage electronic parts, wiring, or mechanical parts.(2) Removal of dust, pile, etc.

Vacuum cleaning (with an electric cleaner) is preferred. Remove all dust, etc., inside the printer.Note: After cleaning, check the oil level. If it is not adequate due to cleaning, replenish it.

1-2. ChecksChecks must be carried out at two levels: a “daily check” which the operator can easily carry out during operation, anda “periodic check” which an expert should carry out.(1) Daily check

When the printer is used on a daily basis, check that the printer is used properly. Make sure that the printer isoperating under the best conditions.• Is any paper stuck in the paper box or printer case?• Is the cartridge ribbon set at the right position?• Is there any foreign matter inside the printer? (Remove if any.)• Is the print head getting excessively dirty?

(2) Periodic checkAfter 6 months or printing 1 million lines, the periodic check and lubrication must be carried out.• Check for deformation of springs.• Check the gap between the platen and the print head.• Remove dust, dirt, etc., around the detectors.

– 50 –


2. LubricationLubrication is very important to maintain optimum performance and to prevent trouble.

2-1. LubricantThe type of lubricant greatly affects the performance and durability of the printer, especially in a low temperatureenvironment. We recommend use of the grease and lubrication oils listed below for this printer

Type of oil Product name Maker

Grease MOLYKOTE EM-30L DOW CORNING ASIA LTD

Lubricant Mobil 1 Mobil oil

Silicone oil KF96-1000CS Shin Etsu Chemicals Industry Co, LTD

2-2. Lubricating MethodWhen lubrication is carried out in assembly and disassembly, wash parts well to remove dust and dirt before lubrication.Lubrication must be carried out regularly once every 6 months or after 1 million lines have been printed. Lubrication isnecessary irrespective of the regular lubrication whenever lubricant becomes deficient after cleaning or whenever partshave been disassembled or replaced.

2-3. Lubricated AreasNO. LubricationProduct Name

[1] Rubbing surfaces of Felt Mobil 1

[2] Rubbing surfaces of Frame R and Adjusting lever EM-30L

[3] Rubbing surfaces of Platen and Platen spping EM-30L

[4] Rubbing surfaces of Frame R, L and Stack guide EM-30L

[5] Rubbing surfaces of Carriage unit and Color ribbon holder EM-30L

[6] Rubbing surfaces of Carrige stay Mobil 1

[7] Rubbing surfaces of Pully shaft and Pully EM-30L

[8] Rubbing surfaces of Frame R and RF idler gear EM-30L

[9] Rubbing surfaces of Tractor shaft EM-30L

[10] Rubbing surfaces of Release lever and Tractor frame L EM-30L

[11] Rubbing surfaces of Roller shaft EM-30L

[12] Rubbing surfaces of Shaft EM-30L

[13] Rubbing surfaces of Ribbon shaft lever KF96-1000CS

[14] Rubbing surfaces of Gear EM-30L

[15] Rubbing surfaces of Shift cam EM-30L

[16] Rubbing surfaces of back of Gear cover EM-30L

[17] Rubbing surfaces of PF idler gear and shaft of Tractor Fram R EM-30L

[18] Rubbing surfaces of Tactor shaft EM-30L

[19] Rubbing surfaces of Feed roller shaft and Fram L, R EM-30L

– 51 –


Fig. 5-1 Lubricated Areas (printer mechanism)

– 52 –


Fig. 5-3 Lubricated Areas (push tractor unit)

Fig. 5-2 Lubricated Areas (Frame R unit)

– 53 –


(LC-1511)

(LC-1521)

Fig. 5-4 Lubricated Areas (Carriage unit)

(Shift cum) (Back side of gear cover)

– 54 –


Fig. 5-5 Lubricated Areas (Pull tractor unit)

Fig. 5-6 Lubricated Areas (ASF)

6

CHAPTER 6TROUBLESHOOTING

1. Troubleshooting Procedures .............................................................................57

2. Unit Replacement Priority Chart ........................................................................58

3. Repair by Unit Replacement............................................................................... 59

4. Repair by Parts Replacement .............................................................................65

4-1. Does not Operate at All with Power on............................................................... 65

4-2. Power Supply Circuit Abnormal .......................................................................... 66

4-3. Defective Motor Operation ................................................................................... 67

4-4. Defective Print Head Operation ........................................................................... 68

4-5. Defective Interface Operation .............................................................................. 69

– 57 –

TROUBLESHOOTING

1. Troubleshooting ProceduresTroubleshooting is never easy because various problems arise depending upon the particular location of the breakdown.The following procedures should be taken in making repairs.

(1) The first method is to make repairs through unit replacements. The two display codes appearing in the flow chartare defined as follows: 1) indicates main logic board replacement; and 2) indicates printer mechanism replacement,to be carried out if the problem has not been corrected.

1) Main Logic Board Replacement

2) Printer Mechanism Replacement

Check again at this time whether the replaced unit is malfunctioning. (This is done to rule out trouble caused by impropercontact of connectors.)Replaceable units consist of the following:• Power supply unit• Main logic board• Printer mechanism• Control panel boardIn replacing these units, always refer to the unit replacement priority chart.

(2) The second method is to make repairs by parts replacement to replace defective elements inside a particular unit.(Note 1) Before starting to repair, be sure to check visually the contact of the connector and the mounting of the IC in

the IC socket.(Note 2) Always turn off power source and remove power plug before replacing any units or parts.(Note 3) All check items shown in the flow chart must be checked. Otherwise, newly mounted parts or units may become

damaged.(Note 4) If, in the process of making repairs, there is any confusion about proper procedures, restart the job from the

beginning.(Note 5) Be careful to avoid injury from static electricity when handling ICs and main logic board.

– 58 –

TROUBLESHOOTING

2

2

1

1

1

2

2

2

2

1

1

1

1

1

1

2

2

2

1

1

2. Unit Replacement Priority Chart

Unit Exchange Sequence

Powersupply unit

ProblemDetailsCategory Remarks

2

3

2

2

1

1

1

1

2

1

2

2

1

1

1

1

1

Mainlogic board

Printermechanism

Controlpanel board

Ope

ratio

n re

late

dM

otor

rel

ated

Prin

t hea

dre

late

dD

etec

tor

rela

ted

Inte

rfac

e re

late

d an

d ot

hers

Err

or in

dica

tion

Specific displaylamp only willnot glow

Specific switchonly cannot beinput

Buzzer does notsound (soundvolumeinadequate)

Strange soundsduring operation

No motorholding power(power veryweak)

Dots skipped

Print is too light

Ink ribbonentanglement(wire sticks out)

Absence of papernot detected

Lever positionnot detected

Incorrect printing

Ink ribbon notforwarded

No operation atEDS setting

Faulty operationwhen power isturned on/off

Abnormal motoroperating speed(slow)

Fuse blownduring operation

Error detection ofhead temperature

Carriage motorerror

Paper handlingerror

EE-PROM &RAM error

Watch dog timererror

Replace ink ribbon

Check I/F cable

“DRAFT” lamp blink

“ROMAN” lamp blink

“COURIER” lamp blink

“10CPI” lamp blink

“PROP” lamp blink

Note: The figures 1, 2 and 3 mean the priority of replacement.

– 59 –

TROUBLESHOOTING

1) Replace main logicboard.

2) Replace printermechanism.

A

NO

NO

A

NO

1) Replace main logicboard.

2) Replace printermechanism.

A

NOHome positionswitch signal is

normal?

YES

Replace main logic board.

3. Repair by Unit Replacement

B

Carriage motoroperating waveform is

normal? *1

YES

Replace printer mechanism.

NO

*1 See (8) and (9) waveform initem 7 of Chapter 7.

1

START

* Turn power off.* Remove I/F cable.* Mount ink ribbon.* Set paper.* Move carriage to center.

Turn power on.

CarriageMoves?

YES

Carriage operatesnormally?

YES

Carriage stops at home

position?(left side)

YES

– 60 –

TROUBLESHOOTING

1) Replace main logic board.

2) Replace printer mechanism.

NO



A

NO

NO

A

A

Selfprinting:

Carriage motordrive waveform is

normal? *1

YES


NO

NO

NO

Replace control panel board.

NOOn line lampsignal is normal?


E

YES

Paper feedmotor drive waveform

is normal? *2

YES


*2 See (10),(11) and (12),(13)wave-form in item 7 of Chapter 7.

*1 See (8) and (9) waveform initem7 of Chapter 7.

1

2

On line lamp light?

YES

Press on line switch to takeoff line.

On line lamp is out?

YES

Press paper feed switch.

Paper feed switchoperation is normal?

YES

Turn power off.

Holding paper feed switch,turn power on.

Carriage operatesnormally?

YES

– 61 –

TROUBLESHOOTING

NO

A

Paper feed motor drive waveform is

normal? *2

YES

*2 See (10),(11) and (12),(13) wave-form in item 7 of Chapter 7.


A

1) Replace ink ribbon.




A

NO

Print headdrive signal waveform is

normal? *3

YES


NO

Printing operationis normal?

YES

Paper feedoperation is

normal?

YES

Ribbon feedoperation is

normal?

YES

Terminates self printing.

Check host computerconnection.

Turn power off and checkI/F cable.

Turn power on.

Send print program from hostcomputer.

NO

C

NO

2

3

*3 See (4),(5) and (6),(7) wave-form in item 7 of Chapter 7.



NO

– 62 –

TROUBLESHOOTING

*4 Power Supply Unit

LC-1511 +33V Line +33V ± 5% Between Pin 4 and Pin 3 of CN101

+5V Line +5V ± 5% Between Pin 1 and Pin 2 of CN101



1) Replace I/F cable.


3) Check host computer.


2) Replace printer mecha-nism.

3) Replace control panelboard.


Replace power supply unit.

C

D

NO

A

B

3

NO

NO

NO

YES

Printing begins?

YES

Printingoperation normal?

YES

Stop print program.

END

Carriage moveswith hand?

YES

Output(+33/35V, +5V)

of power supply unit isnormal? *4

NO

Turn power off.

Fuse blows out?

YES

Replace fuse.

Remove connector CN7from main logic board

Turn power on.

4

– 63 –

TROUBLESHOOTING

NO

NO

A

4

Output ofpower supply unit is

normal? *4

YES

Turn power off.

Connect connector CN7from main logic board

Turn power on.

Fuse blows out?

YES

Replace fuse.



3) Replace control panel board.

Replace power supply unit.

*4 Power Supply Unit





– 64 –

TROUBLESHOOTING

YES

NO

YES

YES

D

CA

I/F mode setup properly?

NO

Change I/F mode.

I/F signal isnormal? *5

NO

Ready condition?

YES

There is datatransmission?

NO

Check hardware or hostcomputer print program.

NO

A

E

On line switchgoes ON/OFF?

YES

On line lampdrive signal is

normal?

YES

Replace control panel board.

*5 See (14) waveform initem 7 of Chapter 7.

NO

1) Replace control panel board.



1) Replace I/F cable.

2) I/F cartridge


– 65 –

TROUBLESHOOTING

DC Power abnormal.

Check RESET circuit;replace parts.

Check crystal circuit;replace parts.

1) Replace CPU or ROM.

2) Check relevant circuit.

NO

NO

NO

NO

See 4-2. Power SupplyCircuit Abnormal.

4. Repair by Parts Replacement

4-1. Does not Operate at All with Power on

*2 See (2) waveform in item 7 of Chapter 7.*3 See (1) waveform in item 7 of Chapter 7.

START

+33/35V, +5Vare

supplied? *1

YES

RESETsignal becomes

HIGH? *2

YES

Crystalwaveform isnormal? *3

YES

ROM OEsignals become

LOW?

YES

Carriage motor abnormal.

Check operation.

END*1 Power Supply Unit





– 66 –

TROUBLESHOOTING

YES

4-2. Power Supply Circuit Abnormal(1) Remove connector CN101 from power supply unit.

Replace Fuse F1

Fuse isblown again?

NO

YES

Replace1) Power supply unit

START

Fuse F1is blown?

NO

Check the 5V line of themain logic board.

END

The no load voltages are below;





– 67 –

TROUBLESHOOTING

NO

NO

NO

START

LF-CMNsignal is normal?

*4

YES

LF-ø1,ø2, ø3, ø4 arenormal? *5

YES

ReplaceLF motor

Check operation

END

Check and replace1) TA 4

2) Gate array

4-3. Defective Motor Operation

*4 See (10) and (11) waveform in item 7 of Chapter 7.*5 See (12) and (13) waveform in item 7 of Chapter 7.*6 See (8) and (9) waveform in item 7 of Chapter 7.

Paper Feed Motor Carriage MotorSTART

CR-ø1,ø2, ø3, ø4 arenormal? *6

YES

ReplaceCR motor

Check operation

END

Check and replace

1) TA3

2) TR11

3) Gate array

Check and replace

1) TA3

2) CPU

– 68 –

TROUBLESHOOTING

4-4. Defective Print Head Operation

NO

NO

NO

*7 See (4) and (5) waveform in item 7 ofChapter 7.

START

Does notprint at all?

YES

+33/35V lineis supplied?

YES

Check and replace

1) Power supply unit (Refer to item 4-2.)

Check and replace1) Gate array

2) CPU

Check and replace

1) TR12 ~ TR16

2) Gate array

Headenergizing controlsignal is normal?

*7

YES

Check and replace

1) Print head

END

A specificpin does not

work?

NO

Print is light as whole?

NO

YES

YES

Check and replace• TA1 (HD1, 2, 4, 6)• TA2 (HD3, 7, 8, 9)• TR12 (HD5)

Adjust gap(Refer to Chapter 3.)

– 69 –

TROUBLESHOOTING

Check I/F cable.

Check and replace

1) IC 4

2) Gate array

3) CPU

NO

YES

4-5. Defective Interface Operation

START

Press on line switch totake on line.

Send print programfrom host computer.

Is I/Fsignal normal? *8

YES

Incorrect printgenerated?

NO

Check operation

END

*8 See (14) waveform initem 7 of Chapter 7.

5-3. Control Panel Board ...................................... 1045-3-1. Circuit Diagram ................................... 1045-3-2. Component Layout ............................. 1045-3-3. Parts List .............................................. 104

5-4. Connected Board ........................................... 1055-4-1. Circuit Diagram ................................... 1055-4-2. Component Layout ............................. 1055-4-3. Parts List .............................................. 105

5-5. Power Supply Unit (LC-1511) ........................ 1065-5-1. Circuit Diagram ................................... 1065-5-2. Component Layout ............................. 1075-5-3. Parts List .............................................. 108

5-6. Power Supply Unit (LC-1521) ........................ 1105-6-1. Circuit Diagram ................................... 1105-6-2. Component Layout ............................. 1115-6-3. Parts List .............................................. 112

5-7. Serial Interface Board IS-8H192 (Option) ..... 1145-7-1. Circuit Diagram ................................... 1145-7-2. Component Layout ............................. 1155-7-3. Parts List .............................................. 115

6. Serial - Parallel Converter Board ( Option ) .......... 1166-1. Wiring Scheme ............................................... 1166-2. I/F Board ......................................................... 117

6-2-1. Circuit diagram.................................... 1176-2-2. Component Layout ............................. 1176-2-3. Parts List .............................................. 117

6-3. CPU Board ...................................................... 1186-3-1. Circuit diagram ..................................... 1186-3-2. Component Layout ............................. 1196-3-3. Parts List .............................................. 119

7. Waveform with Oscilloscope ................................. 120

7

CHAPTER 7PARTS LIST

HOW TO USE PARTS LIST(1) DRWG. NO.

This column shows the drawing number of the illustration.(2) REVISED EDITION MARK

This column shows a revision number.Part that have been added in the revised edition are indicated with "#".Part that have been abolished in the revised edition are indicated with "*".#1:First edition �¨ Second edition *1:First edition �¨ Second edition

(3) PARTS NO.Parts numbers must be notified when ordering replacement parts. Parts described as “NPN” have no parts number and are notin stock, i.e., unavailable.

(4) PARTS NAMEParts names must be notified when ordering replacement parts.

(5) Q’TYThis column shows the number of the part used as indicated in the figure.

(6) REMARKSWhere differences in specifications exist depending on location/destination.

(7) RANKParts marked “S” are service parts. Service parts are recommended to be in stock for maintenance.

1. Printer Assembly ...................................................... 721-1. Disassembly Drawing ...................................... 721-2. Parts List ........................................................... 73

2. Printer Mechanism .................................................... 742-1. Disassembly Drawing ...................................... 742-2. Parts List ........................................................... 75

3. Sub - Assembly ......................................................... 763-1. Push Tractor Unit ............................................. 763-2. Lower Cace Unit ............................................... 773-3. Upper Case Unit ............................................... 783-4. Paper Chute Unit .............................................. 793-5. Platen Unit ........................................................ 803-6. Carriage Unit (LC-1511) ................................... 813-7. Carriage Unit (LC-1521) ................................... 823-8. Frame L Unit ..................................................... 833-9. Frame R Unit ..................................................... 843-10. Serial IF Unit (Option) ...................................... 853-11. Pull Tractor Unit (Option) ................................ 863-12. ASF (Option) ..................................................... 873-13. Serial-Parallel Converter (Option) .................. 88

4. Wiring Scheme of Printer ......................................... 89

5. Electrical Parts .......................................................... 925-1. Main Logic Board (LC-1511) ........................... 92

5-1-1. Circuit Diagram ..................................... 925-1-2. Component Layout ............................... 945-1-3. Parts List ................................................ 95

5-2. Main Logic Board (LC-1521) ........................... 985-2-1. Circuit Diagram ..................................... 985-2-2. Component Layout ............................. 1005-2-3. Parts List .............................................. 101

– 72 –

1. Printer Assembly

1-1. Disassembly Drawing

– 73 –

1-2. Parts List

DRWG.NO. REV. PARTS NO. PARTS NAME Q'TY REMARKS RANK1511 1521

1 89428020 MECHANISM WITH HEAD DP505 (D) 1 S89428040 MECHANISM WITH HEAD DP505H (D) 1 S

2 87817050 PUSH TRACTOR UNIT HA-15(D) 1 1 S 3 87816650 PRINTER COVER UNIT HA-15(D) 1 1 S 4 87816670 REAR COVER UNIT HA-15(D) 1 1 S 5 87816660 PAPER GUIDE UNIT HA-15(D) 1 1 S 6 87815081 MAIN LOGIC BD UNIT HA-15(D) 1 S

87815091 MAIN LOGIC BD UNIT HA-15H(D) 1 S 7 87814310 POWER SUPPLY UNIT HA-15 US(D) 1 FOR US,TW S

87814320 POWER SUPPLY UNIT HA-15 EC(D) 1 FOR EC,LA S87814330 POWER SUPPLY UNIT HA-15 UK(D) 1 FOR UK S87814340 POWER SUPPLY UNIT HA-15 AS(D) 1 FOR AS S87814350 POWER SUPPLY UNIT HA-15 HK(D) 1 FOR HK S87814360 POWER SUPPLY UNIT HA-15H US(D) 1 FOR US,TW S87814370 POWER SUPPLY UNIT HA-15H EC(D) 1 FOR EC S87814380 POWER SUPPLY UNIT HA-15H UK(D) 1 FOR UK S87814390 POWER SUPPLY UNIT HA-15H AS(D) 1 FOR AS S87814400 POWER SUPPLY UNIT HA-15H HK(D) 1 FOR HK S

8 87811270 LOWER CASE UNIT HA-15(D) 1 1 S 9 87810430 UPPER CASE UNIT HA-15(D) 1 S

87810440 UPPER CASE UNIT HA-15H(D) 1 S10 89510420 RIBBON CASSETTE JAN Y9WH 1 1 FOR EC,UK,AS S

89510430 RIBBON CASSETTE UPC Y9WH 1 FOR US,LA S89510430 RIBBON CASSETTE UPC Y9WH 1 FOR US S89510440 RIBBON CASSETTE SMH Y9WH 1 1 FOR HK,TW S

11 83903560 PLATEN KNOB ZBA-10 1 1 S12 82902562 RIBBON HOLDER 771 1 1 S13 80995010 CABLE HOLDER 721 1 114 80701830 WIRE 18UL1007BLK055TT 1 115 01914031 SCREW TAT 4-12 PT-FL 6 616 01914030 SCREW TAT 4-15 PT 4 417 01903038 SCREW TAT 3-10 PT-FL 9 918 01903088 SCREW TAT 3-6 WS 2 219 86424070 TOP GUIDE UNIT 505 1 120 89597040 SERIAL IF BD IS-8H192 UPC 1 FOR US,LA OPTION

89597040 SERIAL IF BD IS-8H192 UPC 1 FOR US OPTION89597050 SERIAL IF BD IS-8H192 JAN 1 1 EXCEPT FOR US,LA OPT

21 89596180 PULL TRACTOR UNIT PT15HAUPC 1 FOR US,LA OPTION89596180 PULL TRACTOR UNIT PT15HAUPC 1 FOR US OPTION89596190 PULL TRACTOR UNIT PT15HAJAN 1 1 FOR EC,UK,AS OPTION89596200 PULL TRACTOR UNIT PT15HASMH 1 1 FOR HK,TW OPTION

22 89590530 ASF SF-15HA UPC 1 FOR US,LA OPTION89590530 ASF SF-15HA UPC 1 FOR US OPTION89590540 ASF SF-15HA JAN 1 1 FOR EC,UK,AS OPTION89590550 ASF SF-15HA SMH 1 1 FOR HK,TW OPTION

23 89595010 S-P CONVERTER SPC-8K UPC 1 1 FOR US,LA OPTION89595020 S-P CONVERTER SPC-8K JAN 1 1 EXCEPT FOR US,LA OPT

– 74 –

2. Printer Mechanism

2-1. Disassembly Drawing

– 75 –

1 *1 89137020 PRINT HEAD DP5005 (D) 1 S#1 89137021 PRINT HEAD DP5005 (D) 1 S

89137040 PRINT HEAD DP5005H (D) 1 S 2 86428010 BOTTOM GUIDE UNIT 505 1 1 S 3 86427050 TENSION LEVER UNIT 505 1 S

86427040 TENSION LEVER UNIT 505H 1 S 4 *1 86426150 STACK GUIDE UNIT 505 1 1

#1 86426151 STACK GUIDE UNIT 505 1 14-1 *1 80995230 DISCHARGE SHEET 505 1 1 INCLUDED DRWG.NO.4

#1 80995231 DISCHARGE SHEET 505 1 1 INCLUDED DRWG.NO.44-2 *1 86426110 PF ROLLER SHAFT UNIT 505 1 1 INCLUDED DRWG.NO.4

#1 86426111 PF ROLLER SHAFT UNIT 505 1 1 INCLUDED DRWG.NO.4 5 83101810 IDLER GEAR 16X72X0.5 731 1 1 S 6 86424060 PAPER CHUTE UNIT 505 1 1 S 7 86423040 PLATEN UNIT 505 1 1 S 8 86422420 COLOR RIBBON HOLDER ASSY 771 1 1 9 86422090 CARRIAGE UNIT 505 1 S

86422080 CARRIAGE UNIT 505H 1 S10 86420580 CARRIAGE MOTOR ASSY 505 1 S

86420560 CARRIAGE MOTOR ASSY 505H 1 S11 86420160 FRAME L UNIT 505 1 112 86420170 FRAME R UNIT 505 1

86420150 FRAME R UNIT 505H 113 83401211 ADJUSTING LEVER 771 1 114 83201061 ADJUSTING BUSHING 721 1 115 82210180 COLLAR 4.5X12 771 1 116 82091630 REAR ANGLE 505 1 117 NPN FRAME BASE 505 1 118 NPN CARRIAGE STAY 505 1 119 80755570 HEAD CABLE 5005 1 INCLUDED DRWG.NO.1 S

80755590 HEAD CABLE 5005H 1 INCLUDED DRWG.NO.1 S20 *1 80531101 PLATEN GROUND SPRING 505 1 1 S

#1 80531260 CR STAY GROUND SPRING 505 1 1 S21 80520810 SPRING C065-040-0296 1 1 S22 80511120 SPRING E050-026-0136 1 1 S23 04020018 STOP RING SE8.0 3 324 02040402 FLANGED NUT NHW4 1 125 01903091 SCREW TAT 3-8 1 126 01903064 SCREW TAT 3-5 CT 4 427 01903038 SCREW TAT 3-10 PT-FL 2

01903035 SCREW TR 3-10 FL 228-1 00630504 SCREW TR 3-5 228-2 01604080 SCREW TR 4-8 229 *1 82501500 PLATEN SPRING 505 2 2 S

#1 82501580 PLATEN SPRING 505 2 2 S30 01903061 SCREW TAT 3-6 PT-FL 2 231 01903080 SCREW TAT 3-6 2 232 02305025 POLY-SLIDER WP5X0.25 2 233 80531131 PF MOTOR GROUND SPRING 505 1 1 S34 04020010 STOP RING SE2.0 1 1 S35 *1 80531141 PLATEN GROUND SPRING B 505 1 1 S36 80995110 FELT 505 1 1 S

2-2. Parts List


– 76 –

3. Sub - Assembly

3-1. Push Tractor Unit

2-1 86036360 TRACTOR L ASSY 941 1 12-2 86036350 TRACTOR R ASSY 941 1 12-3 NPN SHEET GUIDE 905 1 12-4 83904372 RELEASE ARM 721 3 32-5 83401361 RELEASE LEVER 505 1 1 S2-6 83101700 GEAR 38X0.5 771 2 2 S2-7 83101690 TRACTOR GEAR 771 1 1 S2-8 *1 83000201 TRACTOR FRAME L 505 1 1

#1 83000202 TRACTOR FRAME L 505 1 12-9 *1 83000190 TRACTOR FRAME R 505 1 1

#1 83000191 TRACTOR FRAME R 505 1 12-10 NPN RELEASE SHAFT 505 1 12-11 NPN TRACTOR STAY 505 1 12-12 NPN TRACTOR SHAFT 505 1 12-13 80521090 SPRING C090-060-0179 1 1 S2-14 04020017 STOP RING SE5.0 2 22-15 04012002 ROLL PIN SP2.0X10 3 32-16 02307050 POLY-SLIDER WP7X0.5 1 12-17 02040406 FLANGED NUT NHW4 2 22-18 80531150 RELEASE LEVER SPRING 505 1 1 S2-19 04020016 STOP RING SE4.0 2 2


– 77 –

3-2. Lower Cace Unit

DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANK

8-1 83026190 LOWER CASE HA-15 1 S8-2 NPN LOWER CASE CHASSIS C HA-15 18-3 NPN LOWER CASE CHASSIS B HA-15 18-4 NPN LOWER CASE CHASSIS A HA-15 18-5 NPN RUBBER FOOT 15X15 QBS-10 48-6 00930803 SCREW TAT 3-8 PT 58-7 NPN SHEET 5 HA-15 1

– 78 –

3-3. Upper Case Unit


9-1 83026180 UPPER CASE HA-15 1 1 S9-2 80088070 OPERATION SHEET HA-15 1

80088080 OPERATION SHEET HA-15H 19-3 80060300 BRAND PLATE HA-15 1

80060310 BRAND PLATE HA-15H 1

– 79 –

6-1 86424370 DETECTOR UNIT A 505 1 S6-2 86424361 ROLLER HOLDER ASSY 721 36-2-1 83904403 ROLLER HOLDER 721 1 INCLUDER DRWG.NO.6-26-2-2 *1 83201071 PINCH ROLLER 721 1 INCLUDER DRWG.NO.6-2

#1 83201072 PINCH ROLLER 721 1 INCLUDER DRWG.NO.6-26-2-3 80521111 SPRING C087-090-0172 1 INCLUDER DRWG.NO.6-26-3 83912362 PAPER CHUTE 505 16-4 *1 80910480 ASSIST GUIDE 505 6

#1 80910481 ASSIST GUIDE 505 6

3-4. Paper Chute Unit


– 80 –


7-1 83904412 PLATEN HOLDER 721 27-2 83401311 ASF CLUTCH LEVER 721 17-3 83101820 PLATEN GEAR 721 1 S7-4 83101750 CLUTCH IDLER GEAR B 771 1 S7-5 82210191 WAVE WASHER 721 17-6 80202291 PLATEN 505 17-7 04020018 STOP RING SE8.0 17-8 04012503 ROLL PIN SP2.5X14 27-9 02210001 PLAIN WASHER WF10X18X1.6 1

3-5. Platen Unit

– 81 –

9-1 *1 86422610 CARRIAGE ASSY 505 1#1 86422611 CARRIAGE ASSY 505 1

9-2 86422580 GEAR COVER ASSY 505 19-2-1 NPN HEAD GROUND SPRING 605 1 INCLUDED DRWG.NO.9-29-3 86422400 RIBBON CASSETTE GEAR ASSY 771 1 S9-4 86032411 GEAR A ASSY 981 1 S9-5 86032400 CLUTCH LEVER ASSY 981 1 S9-6 83904541 CARD HOLDER 505 19-7 83401162 RIBBON SHIFT LEVER 771 19-8 83290150 SHIFT CAM 505 1 S9-9 83200990 REAR ROLLER 981 1 S9-10 83101930 IFLER GEAR 21X50X0.3 505 19-11 83101730 SHIFT CLUTCH GEAR 62X0.5 771 1 S9-12 83101700 GEAR 38X0.5 771 1 S9-13 83101480 GEAR 30X0.3 981 2 S9-14 83101370 GEAR 48X0.3 965 1 S9-15 NPN ROLLER SHAFT 981 19-16 80902230 TIMING BELT HTD102 506X6.4 19-17 80510951 SPRING E032-026-0116 1 S9-18 01902615 SCREW TAT 2.6-6 PT 2

3-6. Carriage Unit (LC-1511)


– 82 –

9-1 *1 86422600 RIBBON HOUSING ASSY 505H 1#1 86422601 RIBBON HOUSING ASSY 505H 1

9-2 84900111 CARRIAGE 505H 19-3 86422580 GEAR COVER ASSY 505 19-3-1 NPN HEAD GROUND SPRING 605 1 INCLUDED DRWG.NO.9-39-4 86422400 RIBBON CASSETTE GEAR ASSY 771 1 S9-5 86032411 GEAR A ASSY 981 1 S9-6 86032400 CLUTCH LEVER ASSY 981 1 S9-7 83904541 CARD HOLDER 505 19-8 83401162 RIBBON SHIFT LEVER 771 19-9 83290150 SHIFT CAM 505 1 S9-10 83200990 REAR ROLLER 981 1 S9-11 83101930 IFLER GEAR 21X50X0.3 505 19-12 83101730 SHIFT CLUTCH GEAR 62X0.5 771 19-13 83101700 GEAR 38X0.5 771 1 S9-14 83101480 GEAR 30X0.3 981 2 S9-15 83101370 GEAR 48X0.3 965 1 S9-16 NPN ROLLER SHAFT 981 19-17 80902090 TIMING BELT HTD104 365X6.4 19-18 80510951 SPRING E032-026-0116 1 S9-19 00826504 SCREW TR 2.6-5 29-20 00630504 SCREW TR 3-5 3

3-7. Carriage Unit (LC-1521)


– 83 –

3-8. Frame L Unit


11-1 86424380 DETECTOR UNIT B 505 1 S11-2 NPN FRAME L 505 111-3 00926803 SCREW TAT 2.6-8 PT 2

– 84 –

12-1 86420570 PAPER FEED MOTOR ASSY 505 1 S86420550 PAPER FEED MOTOR ASSY 505H 1 S

12-2 83101760 PF IDLER GEAR 771 2 2 S12-3 NPN FRAME R 505 1 112-4 00930603 SCREW TAT 3-6 PT 2 212-5 00926803 SCREW TAT 2.6-8 PT 1 1


12-1 86420570 PAPER FEED MOTOR ASSY 505 1 S86420550 PAPER FEED MOTOR ASSY 505H 1 S

12-2 83101760 PF IDLER GEAR 771 2 2 S12-3 NPN FRAME R 505 1 112-4 00930603 SCREW TAT 3-6 PT 2 212-5 00926803 SCREW TAT 2.6-8 PT 1 1

3-9. Frame R Unit

– 85 –

3-10.Serial IF Unit (Option)


20-1 87590120 IF BOARD UNIT IS-8H192 120-2 NPN INTERFACE COVER HA-15 120-3 NPN INTERFACE CHASSIS IS-8H 120-4 NPN SCREW TAT 3-5 CT 220-5 NPN SCREW TR 3-8 2

– 86 –

3-11.Pull Tractor Unit (Option)


21-1 86592110 TRACTOR SHAFT UNIT PT-15HA 121-1-1 83101690 TRACTOR GEAR 771 1 INCLUDED DRWGN0.20-121-2 86036360 TRACTOR L ASSY 941 121-3 86036350 TRACTOR R ASSY 941 121-4 NPN SHEET GUIDE 905 121-5 83401380 TRACTOR LOCK LEVER L PT-15HA 121-6 83401370 TRACTOR LOCK LEVER R PT-15HA 121-7 83101760 PF IDLER GEAR 771 121-8 NPN TRACTOR COVER L PT-15HA 121-9 NPN TRACTOR COVER R PT-15HA 121-10 83000241 TRACTOR FRAME L PT-15HA 121-11 83000231 TRACTOR FRAME R PT-15HA 121-12 NPN TRACTOR STAY PT-15HA 121-13 NPN GUIDE WIRE PT-15HA 121-14 80510890 SPRING E060-050-0221 221-15 04012002 ROLL PIN SP2.0X10 221-16 02040406 FLANGED NUT NHW4 221-17 00930803 SCREW TAT 3-8 PT 4

– 87 –

3-12.ASF (Option)


22-1 86594020 ADJUSTER ASSY L SF-15HA 122-2 86594010 ADJUSTER ASSY R SF-15HA 122-3 NPN TRACTOR STAY ASSY SF-15HA 122-4 86426660 FEED ROLLER COLLAR L ASSY 505 122-5 86426650 FEED ROLLER COLLAR R ASSY 505 122-6 86426330 ASF STOPPER ASSY 771 122-7 NPN MANUAL FEED GUIDE SF-15HA 122-8 83101780 ASF FEED GEAR 771 122-9 83101750 CLUTCH IDLER GEAR B 771 122-10 83101741 CLUTCH IDLER GEAR A 771 122-11 83026150 PAPER GUIDE B SF-15HA 322-12 NPN PAPER GUIDE A SF-15HA 122-13 NPN FRAME L SF-15HA 122-14 NPN FRAME R SF-15HA 122-15 NPN ASF COVER SF-15HA 122-16 NPN ASF STAY SF-15HA 122-17 NPN FEED ROLLER SHAFT SF-15HA 122-18 80521070 SPRING C050-026-0099 122-19 02040406 FLANGED NUT NHW4 222-20 02040301 FLANGED NUT NHW3 222-21 01903060 SCREW TAT 3-8 PT-FL 3

– 88 –

3-13.Serial-Parallel Converter (Option)


23-1 NPN UPPER CASE SPC-8K 123-2 NPN CPU BOARD UNIT SPC-8K 123-3 87590020 IF BOARD UNIT SPC-8K 123-4 NPN LOWER CASE UNIT SPC-8K 123-5 NPN CORD HOLDER SPC-8K 123-6 NPN SCREW TAT 3-12 PT-FL 323-7 NPN SCREW TAT 3-8 PT-FL 123-8 NPN CORD HOLDER PLATE SPC-8K 1- NPN FERRITE CORE HF70RU12X5 2

– 89 –

4. Wiring Scheme of Printer

a. LC-1511

– 90 –

b. LC-1521

[Blank Page]

– 92 –

5. Electrical Parts

5-1. Main Logic Board (LC-1511)

5-1-1. Circuit Diagram

– 93 –

– 94 –

5-1-2. Component Layout

– 95 –

IC1 08222017 EPROM D27C1001D-150NS 1 HA15 *.* S09110077 IC SOCKET ICS-32-2T 1

IC2 *1 08223270 MASKED ROM 1.0 HA-15 1 S#1 08223271 MASKED ROM 2.0 HA-15 1 S

09110077 IC SOCKET ICS-32-2T 1IC3 08221044 PSRAM HM65256BLSP-100NS 1 SIC4 08210103 TTL IC 74LS06 1 SIC5 08240081 GATE ARRAY D65626GF-H09W1 1 SIC6 08250007 CPU TMP90C041 1 SIC7 08222047 EEPROM KM93C46 1 SIC8 08200142 IC-RESET PST592D-2* 1 SIC9 NOT MOUNTEDIC10 08200091 IC-LIN NJM2903D 1 SD1-3 NOT MOUNTEDD4-5 *1 08000039 DIODE 1S1588 2

#1 08000096 DIODE 1S2076A*A 2D6 08030046 FAST DIODE D1NL20U* 1D7-9 08000040 DIODE DSM1D1 3D10 NPN JUMPER WIRE STP122 1ZD1 NOT MOUNTEDZD2-3 08020130 ZENER DIODE HZ33-1 2ZD4 08020099 ZENER DIODE RD30JSB2 1TA1-2 07650056 TRANSISTOR ARRAY UPA1428AH 2TA3 07650058 TRANSISTOR ARRAY SMA6511 1TA4 08043001 FET ARRAY UPA1501H 1TR1-3 07011752 TRANSISTOR 2SA1266* 3TR4-6 *1 07601002 TRANSISTOR 2SC3198GR* 3

#1 07601004 TRANSISTOR 2SC3199GR* 3TR7-8 NOT MOUNTEDTR9 *1 07601002 TRANSISTOR 2SC3198GR* 1

#1 07601004 TRANSISTOR 2SC3199GR* 1TR10 07011752 TRANSISTOR 2SA1266* 1TR11 *1 07601002 TRANSISTOR 2SC3198GR* 1

#1 07601004 TRANSISTOR 2SC3199GR* 1TR12 07320101 TRANSISTOR 2SD2010 1TR13 *1 07601002 TRANSISTOR 2SC3198GR* 1

#1 07601004 TRANSISTOR 2SC3199GR* 1TR14-16 07018411 TRANSISTOR 2SA1841 3C1 NPN CERA. CAPA. 0.01UF 50V 1C2 NPN CERA. CAPA. 470PF 50V 1C3-5 NOT MOUNTEDC6 NPN CERA. CAPA. 0.022UF 50V 1C7-8 NOT MOUNTEDC9-12 NPN CERA. CAPA. 30PF 50V 4C13 NPN CHEM. CAPA. 47UF 10V 1C14 NOT MOUNTEDC15 NPN CHEM. CAPA. 100UF 50V 1C16 NOT MOUNTEDC17-18 NPN CERA. CAPA. 1000PF 50V 2C19-20 NPN CERA. CAPA. 470PF 50V 2C21 NPN CERA. CAPA. 0.022UF 50V 1C22 NOT MOUNTEDC23 NPN CERA. CAPA. 0.01UF 50V 1C24 NPN CERA. CAPA. 100PF 50V 1

5-1-3. Parts List


Main Logic Board (LC-1511)

– 96 –

C25 NPN CERA. CAPA. 30PF 50V 1C26 NPN CERA. CAPA. 0.01UF 50V 1C27-30 NPN CERA. CAPA. 0.022UF 50V 4C31-32 NPN CERA. CAPA. 0.01UF 50V 2C33 NPN CERA. CAPA. 0.022UF 50V 1C34-35 NPN CERA. CAPA. 470PF 50V 2C36-37 NPN CERA. CAPA. 30PF 50V 2C38 NPN CERA. CAPA. 0.01UF 50V 1C39 NPN CERA. CAPA. 0.022UF 50V 1C40 NPN CERA. CAPA. 1000PF 1KV 1C41-43 NPN CERA. CAPA. 0.022UF 50V 3C44 NPN CERA. CAPA. 100PF 50V 1C45 NPN CERA. CAPA. 0.022UF 50V 1CA1-2 NPN CAPA. ARRAY 100PF 50V 8EL 1CA3 NOT MOUNTEDR1 NOT USEDR2 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R3-10 NPN RD RESISTOR 4.7 K-OHM 1/6W 8R11 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R12 NPN RD RESISTOR 100 OHM 1/6W 1R13-15 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R16 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R17 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R18 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R19 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R20 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R21 NPN RD RESISTOR 220 OHM 1/6W 1R22-24 NPN RD RESISTOR 100 OHM 1/6W 3R25-27 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R28-33 NPN RD RESISTOR 2.2 K-OHM 1/6W 6R34-39 NOT USEDR40-43 NPN RD RESISTOR 390 OHM 1/6W 4R44-52 NOT MOUNTEDR53-56 NPN JUMPER WIRE STP122 4R57 NOT MOUNTEDR58-59 NPN RD RESISTOR 4.7 K-OHM 1/6W 2R60 NPN RN RESISTOR 5.1 K-OHM 1/6W 1R61-62 NPN RD RESISTOR 10 K-OHM 1/6W 2R63 NPN RN RESISTOR 2.2 K-OHM 1/6W 1R64-65 NPN RD RESISTOR 10 K-OHM 1/6W 2R66-67 NPN RN RESISTOR 1.0 OHM 3W 2R68 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R69 NPN RD RESISTOR 33 K-OHM 1/6W 1R70 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R71 NPN RD RESISTOR 10 K-OHM 1/6W 1R72 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R73 NPN RD RESISTOR 390 OHM 1/6W 1R74 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R75 NPN RN RESISTOR 1.5 K-OHM 1W 1R76 NPN RD RESISTOR 220 OHM 1/6W 1R77 NPN RN RESISTOR 1.5 K-OHM 1W 1R78 NPN RD RESISTOR 220 OHM 1/6W 1R79 NPN RN RESISTOR 1.5 K-OHM 1W 1R80 NPN RD RESISTOR 220 OHM 1/6W 1



– 97 –

C25 NPN CERA. CAPA. 30PF 50V 1C26 NPN CERA. CAPA. 0.01UF 50V 1C27-30 NPN CERA. CAPA. 0.022UF 50V 4C31-32 NPN CERA. CAPA. 0.01UF 50V 2C33 NPN CERA. CAPA. 0.022UF 50V 1C34-35 NPN CERA. CAPA. 470PF 50V 2R100-102 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R103 NPN RD RESISTOR 10 K-OHM 1/6W 1R104-105 NPN RD RESISTOR 220 OHM 1/6W 2R106 NPN RD RESISTOR 33 K-OHM 1/6W 1R107 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R108-109 NOT MOUNTEDR110-111 NPN RD RESISTOR 4.7 K-OHM 1/6W 2R112-113 NPN RD RESISTOR 390 OHM 1/6W 2R114-115 NPN RD RESISTOR 1 K-OHM 1/6W 2RA1 NPN RESIS. ARRAY 4.7K-OHM 1/8W 8EL 1RA2 NPN RESIS. ARRAY 2.2K-OHM 1/8W 8EL 1RA3 NPN RESIS. ARRAY 4.7K-OHM 1/8W 6EL 1L1 #1 09990736 BEADS INDUCTOR RH035047RT-Y7 1L2 #1 09990737 BEADS INDUCTOR RH035047AT-Y7 1L3 NOT MOUNTEDL4 09990736 BEADS INDUCTOR RH035047RT-Y7 1L5-6 09990737 BEADS INDUCTOR RH035047AT-Y7 2L7-8 09990736 BEADS INDUCTOR RH035047RT-Y7 2L9 09990737 BEADS INDUCTOR RH035047AT-Y7 1L11 09990736 BEADS INDUCTOR RH035047RT-Y7 1L12 09990737 BEADS INDUCTOR RH035047AT-Y7 1L13 09990736 BEADS INDUCTOR RH035047RT-Y7 1L14-16 09990737 BEADS INDUCTOR RH035047AT-Y7 3L17-18 09990736 BEADS INDUCTOR RH035047RT-Y7 2L19 09990737 BEADS INDUCTOR RH035047AT-Y7 1L20 09990736 BEADS INDUCTOR RH035047RT-Y7 1L21 09990737 BEADS INDUCTOR RH035047AT-Y7 1CN1 09100615 CONNECTOR 57RE4036080BD29A 1CN2 09100629 CONNECTOR 5342-16T2 1CN3 09100627 CONNECTOR 51048-1400 1CN4 09100573 CONNECTOR 53253-0610 1CN5 09100628 CONNECTOR 53253-0510 1CN6 09100267 CONNECTOR 5483-06A 1CN7 09100317 CONNECTOR 5483-04A 1CN8 80705321 CABLE UNIT 3X302 QBS-10 1

09100626 CONNECTOR 51048-0300 1CN9 09100373 CONNECTOR HLEM16S-1 1CN10 NOT MOUNTEDCN11 09100270 CONNECTOR 5483-02A 1CN12 NOT MOUNTEDJP1 80705480 FLAT CABLE 14X218 HA-15 1

09100627 CONNECTOR 51048-1400 1JP2-3 80701920 WIRE 20UL1007BLK120 2JP4-7 80701910 WIRE 20UL1007BLK085 4X1 09250040 CERA. OSCILLATOR CST12.0MTW 1FG 80700250 WIRE 18UL1007BLK055T 1- 82501030 GROUND SPRING 921C 1



– 98 –

5-2. Main Logic Board (LC-1521)


– 99 –

– 100 –


– 101 –

IC1 08222017 EPROM D27C1001D-150NS 1 HA15 H *.* S09110077 IC SOCKET ICS-32-2T 1

IC2 *1 08223270 MASKED ROM 1.0 HA-15 1 S#1 08223271 MASKED ROM 2.0 HA-15 1 S

09110077 IC SOCKET ICS-32-2T 1IC3 08221046 PSRAM TC51864PL-85 1 SIC4 08210103 TTL IC 74LS06 1 SIC5 08240081 GATE ARRAY D65626GF-H09W1 1 SIC6 08250007 CPU TMP90C041 1 SIC7 08222047 EEPROM KM93C46 1 SIC8 08200142 IC-RESET PST592D-2* 1 SIC9 08210094 TTL IC 74LS07 1 SIC10 08200091 IC-LIN NJM2903D 1 SD1 08000096 DIODE 1S2076A*A 1D2-3 08030034 SCHOTTKY DIODE D2S4M 2D4-5 08000096 DIODE 1S2076A*A 2D6 08030046 FAST DIODE D1NL20U* 1D7-9 08000040 DIODE DSM1D1 3D10 08000096 DIODE 1S2076A*A 1ZD1 08020132 ZENER DIODE UZ20BCA 1ZD2-3 NOT MOUNTEDZD4 08020099 ZENER DIODE RD30JSB2 1TA1-2 07650056 TRANSISTOR ARRAY UPA1428AH 2TA3 07650058 TRANSISTOR ARRAY SMA6511 1TA4 08043002 FET ARRAY SMA5102 1TR1-3 07011752 TRANSISTOR 2SA1266* 3TR4-6 07601004 TRANSISTOR 2SC3199GR* 3TR7 07011752 TRANSISTOR 2SA1266* 1TR8 07220031 TRANSISTOR 2SC2003 1TR9 07601004 TRANSISTOR 2SC3199GR* 1TR10 07011752 TRANSISTOR 2SA1266* 1TR11 07601004 TRANSISTOR 2SC3199GR* 1TR12 07320101 TRANSISTOR 2SD2010 1TR13 07601004 TRANSISTOR 2SC3199GR* 1TR14-16 07018411 TRANSISTOR 2SA1841 3C1 NPN CERA. CAPA. 0.01UF 50V 1C2 NPN CERA. CAPA. 470PF 50V 1C3-5 NOT MOUNTEDC6 NPN CERA. CAPA. 0.022UF 50V 1C7-8 NOT MOUNTEDC9-12 NPN CERA. CAPA. 30PF 50V 4C13 NPN CHEM. CAPA. 47UF 10V 1C14 NPN CHEM. CAPA. 10UF 50V 1C15 NPN CHEM. CAPA. 100UF 50V 1C16 NOT MOUNTEDC17-18 NPN CERA. CAPA. 1000PF 50V 2C19-20 NPN CERA. CAPA. 470PF 50V 2C21 NPN CERA. CAPA. 0.022UF 50V 1C22 NOT MOUNTEDC23 NPN CERA. CAPA. 0.01UF 50V 1C24 NPN CERA. CAPA. 100PF 50V 1C25 NPN CERA. CAPA. 30PF 50V 1C26 NPN CERA. CAPA. 0.01UF 50V 1C27-30 NPN CERA. CAPA. 0.022UF 50V 4C31-32 NPN CERA. CAPA. 0.01UF 50V 2

5-2-3. Parts List



– 102 –


C33 NPN CERA. CAPA. 0.022UF 50V 1C34-35 NPN CERA. CAPA. 470PF 50V 2C36-37 NPN CERA. CAPA. 30PF 50V 2C38 NPN CERA. CAPA. 0.01UF 50V 1C39 NPN CERA. CAPA. 0.022UF 50V 1C40 NPN CERA. CAPA. 1000PF 1KV 1C41-43 NPN CERA. CAPA. 0.022UF 50V 3C44 NPN CERA. CAPA. 100PF 50V 1C45 NPN CERA. CAPA. 0.022UF 50V 1CA1-2 NPN CAPA. ARRAY 100PF 50V 8EL 2CA3 NPN CAPA. ARRAY 220PF 50V 8EL 1R1 NOT USEDR2 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R3-10 NPN RD RESISTOR 4.7 K-OHM 1/6W 8R11 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R12 NPN RD RESISTOR 100 OHM 1/6W 1R13-15 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R16 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R17 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R18 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R19 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R20 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R21 NPN RD RESISTOR 220 OHM 1/6W 1R22-24 NPN RD RESISTOR 100 OHM 1/6W 3R25-27 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R28-33 NPN RD RESISTOR 2.2 K-OHM 1/6W 6R34-39 NOT USEDR40-43 NPN RD RESISTOR 390 OHM 1/6W 4R44 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R45 NPN RD RESISTOR 33 K-OHM 1/6W 1R46 NPN RN RESISTOR 270 OHM 1W 1R47 NPN RD RESISTOR 1.2 K-OHM 1/4W 1R48-51 NPN RD RESISTOR 2.2 K-OHM 1/2W 4R52 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R53-56 NPN RD RESISTOR 100 OHM 1/6W 4R57 NPN RD RESISTOR 390 OHM 1/6W 1R58-59 NPN RD RESISTOR 4.7 K-OHM 1/6W 2R60 NPN RN RESISTOR 5.1 K-OHM 1/6W 1R61-62 NPN RD RESISTOR 10 K-OHM 1/6W 2R63 NPN RN RESISTOR 5.1 K-OHM 1/6W 1R64-65 NPN RD RESISTOR 10 K-OHM 1/6W 2R66-67 NPN RN RESISTOR 1.0 OHM 3W 2R68 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R69 NPN RD RESISTOR 33 K-OHM 1/6W 1R70 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R71 NPN RD RESISTOR 10 K-OHM 1/6W 1R72 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R73 NPN RD RESISTOR 390 OHM 1/6W 1R74 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R75 NPN RN RESISTOR 1.5 K-OHM 1W 1R76 NPN RD RESISTOR 220 OHM 1/6W 1R77 NPN RN RESISTOR 1.5 K-OHM 1W 1R78 NPN RD RESISTOR 220 OHM 1/6W 1R79 NPN RN RESISTOR 1.5 K-OHM 1W 1


– 103 –


R80 NPN RD RESISTOR 220 OHM 1/6W 1R81-89 NPN RD RESISTOR 2.2 K-OHM 1/6W 9R90-91 NPN RD RESISTOR 10 K-OHM 1/6W 2R92 NPN RN RESISTOR 5.1 K-OHM 1/6W 1R93 NPN RN RESISTOR 2.7 K-OHM 1/6W 1% 1R94-95 NPN RD RESISTOR 10 K-OHM 1/6W 2R96-99 NPN RD RESISTOR 2.2 K-OHM 1/6W 4R100-102 NPN RD RESISTOR 4.7 K-OHM 1/6W 3R103 NPN RD RESISTOR 10 K-OHM 1/6W 1R104-105 NPN RD RESISTOR 220 OHM 1/6W 2R106 NPN RD RESISTOR 33 K-OHM 1/6W 1R107 NPN RD RESISTOR 4.7 K-OHM 1/6W 1R108-109 NOT MOUNTEDR110-111 NPN RD RESISTOR 4.7 K-OHM 1/6W 2R112-113 NPN RD RESISTOR 390 OHM 1/6W 2R114-115 NPN RD RESISTOR 1 K-OHM 1/6W 2RA1 NPN RESIS. ARRAY 4.7K-OHM 1/8W 8EL 1RA2 NPN RESIS. ARRAY 2.2K-OHM 1/8W 8EL 1RA3 NPN RESIS. ARRAY 4.7K-OHM 1/8W 6EL 1L1 09990736 BEADS INDUCTOR RH35047RT-Y7 1L2 09990737 BEADS INDUCTOR RH35047AT-Y7 1L3 NOT MOUNTEDL4 09990736 BEADS INDUCTOR RH35047RT-Y7 1L5-6 09990737 BEADS INDUCTOR RH35047AT-Y7 2L7-8 09990736 BEADS INDUCTOR RH35047RT-Y7 2L9-10 09990737 BEADS INDUCTOR RH35047AT-Y7 2L11 09990736 BEADS INDUCTOR RH35047RT-Y7 1L12 09990737 BEADS INDUCTOR RH35047AT-Y7 1L13 09990736 BEADS INDUCTOR RH35047RT-Y7 1L14-16 09990737 BEADS INDUCTOR RH35047AT-Y7 3L17-18 09990736 BEADS INDUCTOR RH35047RT-Y7 2L19 09990737 BEADS INDUCTOR RH35047AT-Y7 1L20 09990736 BEADS INDUCTOR RH35047RT-Y7 1CN1 09100615 CONNECTOR 57RE4036080BD29A 1CN2 09100629 CONNECTOR 5342-16T2 1CN3 09100627 CONNECTOR 51048-1400 1CN4 09100573 CONNECTOR 53253-0610 1CN5 09100628 CONNECTOR 53253-0510 1CN6 09100267 CONNECTOR 5483-06A 1CN7 09100268 CONNECTOR 5483-05A 1CN8 09100626 CONNECTOR 51048-0300 1

80705321 CABLE UNIT 3X302 QBS-10 1CN9 09100419 CONNECTOR HLEM19S-1 1CN10 NOT MOUNTEDCN11 09100270 CONNECTOR 5483-02A 1CN12 80705321 CABLE UNIT 3X302 QBS-10 1JP1 80705480 FLAT CABLE 14X218 HA-15 1

09100627 CONNECTOR 51048-1400 1JP2-3 87775090 WIRE 20UL1007BLK120 2JP4-7 87775080 WIRE 20UL1007BLK085 4FG 80700250 WIRE 18UL1007BLK055T 1X1 09250040 CERA. OSCILLATOR CST12.0MTW 1FG 82501030 GROUND SPRING 921C 1


– 104 –

SW0-OL 09010041 PUSH SWITCH SKHHAL 6LED0-P *1 08300151 LED LTL232 10

#1 08300168 LED GL3EG8 10

5-3-3. Parts List


5-3. Control Panel Board



– 105 –

5-4. Connected Board



5-4-3. Parts List

DRWG.NO. REV. PARTS NO. PARTS NAME Q’TY REMARKS RANKPH1 08300142 PHOTO-INTERRUPTER GP1S58VT 1

– 106 –

5-5. Power Supply Unit (LC-1511)


– 107 –


– 108 –

R1 NPN CEMENT RESISTOR 5.6 OHM 5W 1 FOR USNPN CEMENT RESISTOR 10 OHM 5W 1 EXCEPT FOR US

R2 NPN RN RESISTOR 62 K-OHM 3W 1R3 NPN RD RESISTOR 330 K-OHM 1/4W 1 FOR US

NPN RD RESISTOR 680 K-OHM 1/4W 1 EXCEPT FOR USR4 NPN RN RESISTOR 100 OHM 3W 1R5 NPN RN RESISTOR 22 OHM 2W 1 FOR US

NPN RN RESISTOR 39 OHM 2W 1 EXCEPT FOR USR6 NPN RN RESISTOR 0.15 OHM 2W 1 FOR US

NPN RN RESISTOR 0.36 OHM 2W 1 EXCEPT FOR USR7 NPN RD RESISTOR 150 OHM 1/4W 1R8 NPN RD RESISTOR 560 OHM 1/4W 1 FOR US

NPN RD RESISTOR 820 OHM 1/4W 1 EXCEPT FOR USR9 NPN RD RESISTOR 3.3 K-OHM 1/4W 1R10 NPN RD RESISTOR 120 OHM 1/4W 1R11 NPN RD RESISTOR 330 K-OHM 1/4W 1 FOR US

NPN RD RESISTOR 680 K-OHM 1/4W 1 EXCEPT FOR USR101 NPN RD RESISTOR 1 K-OHM 1/4W 1R102 NPN RD RESISTOR 5.6 K-OHM 1/6W 2% 1R103 NPN RD RESISTOR 1 K-OHM 1/6W 1R104 NPN RN RESISTOR 5.6 K-OHM 1/6W 1% 1R105 NPN RN RESISTOR 1470 OHM 1/6W 1R106 NPN RN RESISTOR 1.5 K-OHM 3W 1ZD1 NPN ZENER DIODE RD4.3EB3 1ZD101 NPN ZENER DIODE RD6.2JSB2 1ZD102 NPN ZENER DIODE RD39FB1-T 1C1 NPN FILM CAPA. 0.22UF 250V 1C2 NPN FILM CAPA. 0.1UF 275V 1 EXCEPT FOR USC3-5 NPN CERA. CAPA. 2200PF 400V 3C6 NPN CHEM. CAPA. 220UF 200V 1 FOR US

NPN CHEM. CAPA. 100UF 400V 1 EXCEPT FOR USC7 NPN FILM CAPA. 0.01UF 630V 1C8-9 NPN CERA. CAPA. 470PF 1KV 2 FOR US

NPN CERA. CAPA. 220PF 1KV 2 EXCEPT FOR USC10 NPN FILM CAPA. 0.047UF 50V 1C11 NPN FILM CAPA. 0.022UF 50V 1C12 NPN FILM CAPA. 0.1UF 50V 1C13-14 NPN FILM CAPA. 6800UF 50V 2 FOR US

NPN FILM CAPA. 0.022UF 50V 2 EXCEPT FOR USC101 NPN CHEM. CAPA. 1000UF 10V 1C102 NPN CHEM. CAPA. 470UF 10V 1C103 NPN CHEM. CAPA. 4700UF 35V 1C104 NPN CERA. CAPA. 0.01UF 250V 1CN101 NPN CABLE UNIT 04X135CC (D) 1D1 NPN FAST DIODE RU1P 1D2 NPN FAST DIODE ERA22-02 1D3 *1 NPN DIODE 1S1588 1

#1 NPN DIODE 1S2076A*A 1D101 NPN SCHOTTKY DIODE SB140 1D102 NPN FAST DIODE FMX-12S 1DB1 NPN DIODE STACK D2SBA60 1F1 09990080 FUSE 5TT2A-250V 1 FOR US

09990090 FUSE 215-1A-250V 1 EXCEPT FOR USNPN FUSE HOLDER PFC5000 2

IC101 NPN IC-REG KIA7805PI 1


5-5-3. Parts List

Power Supply Unit (LC-1511)

– 109 –

J10 NPN BEADS INDUCTOR B01-RT 1 FOR USJ11 NPN BEADS INDUCTOR B01-RT 1L1 NPN NOISE FILTER HR-24-183 1 FOR USL1-2 NPN NOISE FILTER LF-4D-183 2 EXCEPT FOR USPC1 NPN OPTCOUPLER PC123FY2 1Q1 NPN TRANSISTOR 2SC4546 1 FOR US

NPN TRANSISTOR 2SC4234 1 EXCEPT FOR USQ101 NPN TRANSISTOR 2SC1740SE 1Q2 NPN TRANSISTOR 2SC2655 1SW1 NPN SEESAW SWITCH T881SGSS9 1T1 *1 NPN CONVERTER TRANSFORMER QBS-SDUS 1 FOR US

#1 NPN CONVERTER TRANSFORMER HAD-US 1 FOR USNPN CONVERTER TRANSFORMER QBS-SDEC 1 EXCEPT FOR US

W1-2 NPN CABLE UNIT 01X160T (D) 2- NPN SCREW TAT 3-8 CT-FL 3

NPN SCREW TAT 4-5 WS 1NPN WARNING SEAL ZBL-10 1NPN POWER CHASSIS HA-15 1NPN RADIATION PLATE QBS-10 1NPN FASTENER T18S 2 FOR AS,HKNPN FASTENER T18S 3 EXCEPT FOR AS,HKNPN CORD SET EC-PN HA-10 1 FOR EC,LANPN CORD SET US-PN HA-10 1 FOR USNPN CORD SET UK-PN LC 1 FOR UKNPN CORD SET AS-PN LC 1 FOR ASNPN CORD SET HK-PN QBA 1 FOR HKNPN SCREW TR 3-9 WS/WF 4NPN HEAT RADIATION BD PUH23-35 1


Power Supply Unit(LC-1511)

– 110 –

5-6. Power Supply Unit (LC-1521)


– 111 –


– 112 –

B1 *1 NPN BEADS INDUCTOR B-01AT 1#1 NPN BEADS INDUCTOR RH035047AT-Y7 1

B2-3 *1 NPN BEADS INDUCTOR B01-RT 2#1 NPN BEADS INDUCTOR RH035047RT-Y7 2

B4 *1 NPN BEADS INDUCTOR B-01AT 1#1 NPN BEADS INDUCTOR RH035047AT-Y7 1

C1 NPN FILM CAPA. 0.22UF 250V 1C2-3 NOT MOUNTEDC4-5 NPN CERA. CAPA. 2200PF 400V 2C6 NPN FILM CAPA. 0.1UF 275V 1 EXCEPT FOR USC7 NPN CERA. CAPA. 1000PF 400V 1 EXCEPT FOR USC8 NPN CHEM. CAPA. 150UF 400V 1 EXCEPT FOR US

NPN CHEM. CAPA. 470UF 200V 1 FOR USC9 NPN FILM CAPA. 0.047UF 630V 1C10-11 NPN CERA. CAPA. 220PF 1KV 2 EXCEPT FOR US

NPN CERA. CAPA. 470PF 1KV 2 FOR USC12 NPN CHEM. CAPA. 22UF 35V 1C13 NPN FILM CAPA. 0.22UF 50V 1C14 NPN FILM CAPA. 330PF 100V 1C15 NPN FILM CAPA. 0.047UF 50V 1C16 NPN FILM CAPA. 6800UF 50V 1C17 NPN CHEM. CAPA. 2200UF 16V 1C18 NPN CHEM. CAPA. 1000UF 10V 1C19 NPN FILM CAPA. 0.1UF 50V 1C20-21 NPN CHEM. CAPA. 2200UF 50V 2C22 NPN FILM CAPA. 0.1UF 50V 1C23-24 NPN CERA. CAPA. 470PF 1KV 2C25 NPN CERA. CAPA. 0.01UF 250V 1 EXCEPT FOR USC26 NPN CERA. CAPA. 1000PF 400V 1C27 NOT MOUNTEDC28-29 NOT MOUNTED FOR US

NPN CERA. CAPA. 0.01UF 250V 2 EXCEPT FOR USD1 NPN FAST DIODE RU1P 1D2 NPN FAST DIODE ERA92-02*A 1D3 NPN DIODE 1S954 1D4 NPN SCHOTTKY DIODE SB140 1D5 NPN FAST DIODE 5FL2CZ47A 1DB1 NPN DIODE STACK D3SBA60 1F1 09990084 FUSE 215-2.5A-250V 1 EXCEPT FOR US

09990049 FUSE 5TT5A 125V 1 FOR USNPN FUSE HOLDER PFC5000 2

IC1 NPN IC-REG FA5304AP 1IC2 NPN IC-REG L4941 1L1-2 NPN NOISE FILTER HR-24-183 2 EXCEPT FOR US

NPN LINE FILTER ELF-18D650J 2 FOR USL3 NPN INDUCTOR LAL03TA390K 1PC1 NPN OPTCOUPLER PC123FY2 1Q1 NPN FET 2SK2275 1 EXCEPT FOR US

NPN FET 2SK2188 1 FOR USQ2 NPN TRANSISTOR 2SC1740SE 1R1 NPN RD RESISTOR 680 K-OHM 1/4W 1R2-3 NPN RN RESISTOR 56 K-OHM 2W 2 EXCEPT FOR US

NPN RN RESISTOR 30 K-OHM 2W 2 FOR USR4 NPN RN RESISTOR 62 K-OHM 3W 1


5-6-3. Parts List


– 113 –

R5 NPN RN RESISTOR 100 OHM 3W 1R6 NPN RN RESISTOR 0.15 OHM 2W 1R7 NPN RD RESISTOR 100 OHM 1/4W 1R8 NPN RD RESISTOR 10 OHM 1/4W 1R9 NPN RD RESISTOR 680 K-OHM 1/4W 1 EXCEPT FOR US

NPN RD RESISTOR 470 K-OHM 1/4W 1 FOR USR10 NPN RD RESISTOR 330 OHM 1/4W 1 EXCEPT FOR US

NPN RD RESISTOR 1.3 K-OHM 1/4W 1 FOR USR11 NPN RD RESISTOR 1 K-OHM 1/4W 1R12 NPN RD RESISTOR 560 OHM 1/4W 1R13 NPN RD RESISTOR 2.2 K-OHM 1/6W 1R14 NPN RD RESISTOR 1 K-OHM 1/6W 1R15 NPN RD RESISTOR 15 K-OHM 1/6W 1R16 NPN CEMENT RESISTOR 1.5 K-OHM 3W 1R17 NPN RD RESISTOR 3.3 K-OHM 1/6W 1R18 NPN RD RESISTOR 10 K-OHM 1/6W 1R19 NPN RN RESISTOR 1.2 K-OHM 1/6W 1R20 NPN RN RESISTOR 5.1 K-OHM 1/6W 1R21 NPN RN RESISTOR 1.5 K-OHM 1/6W 1% 1R22 NPN RN RESISTOR 22 OHM 2W 1T1 NPN CONVERTER TRANSFORMER H15D EC 1 EXCEPT FOR US

NPN CONVERTER TRANSFORMER H15D US 1 FOR USTH1 NPN THERMISTOR ERTD6FFL200P 1 EXCEPT FOR US

NPN THERMISTOR ERD6FFL5ROP 1 FOR USZD1 NPN ZENER DIODE RD20JSB2 1ZD2 NPN ZENER DIODE RD6.2JSB2 1SW NPN SEESAW SWITCH T881SGSS9 1CN1 NPN CABLE UNIT 05X135CC (D) 1SW1-2 NPN CABLE UNIT 01X160T (D) 2J7 NPN FUSE RESISTOR RF25SC-R1K*A 1- NPN HEAT RADIATION BD PUH23-35 1

NPN HEAT RADIATION BD PUE16-25 2NPN CORD SET EC-PN HA-10 1 FOR ECNPN CORD SET US-PN HA-10 1 FOR USNPN CORD SET AS-PN LC 1 FOR ASNPN CORD SET HK-PN QBA 1 FOR HKNPN SCREW TR 3-9 WS/WF 3NPN FASTENER T18S 3NPN FERRITE CORE ESD-R-16C 1 FOR USNPN CABLE UNIT 01X100TT (D) 1



– 114 –

5-7. Serial Interface Board IS-8H192 (Option)


– 115 –

IC1 08250011 MASKED CPU HD63B01YF-IF 1IC2 08200157 IC-I/F ADM232LJR*SOL16 1IC3 08221021 SRAM HM6264LFP-100NS 1

IC4 08240083 GATE ARRAY LZ95300-ISH 1C1-2 NPN CERA. CAPA. CHIP 0.1UF 50V 2C3-4 NPN CERA. CAPA. CHIP 1000PF 50V 2C5 NPN CERA. CAPA. CHIP 0.1UF 50V 1C6-10 NPN TANTALUM CAPA. CHIP 1UF 16V 5C11 NPN CERA. CAPA. CHIP 0.1UF 50V 1C12 NPN CERA. CAPA. CHIP 1000PF 50V 1C13 NPN CERA. CAPA. CHIP 470PF 50V 1C14-15 NPN CERA. CAPA. CHIP 1000PF 50V 2RA NPN RESIS. ARRAY 10 K-OHM 1/8W 8EL 1R1-2 NPN CHIP RESISTOR 220 OHM 1/10W 2R3 NPN CHIP RESISTOR 3.3 K-OHM 1/10W 1R4 NPN CHIP RESISTOR 1 K-OHM 1/10W 1L1-2 09990729 BEADS INDUCTOR FBM4516HS101 2DSW 09090018 DIP SWITCH KSD08 1CN1 *1 80705560 CABLE UNIT 16X50CC IS-8H192 1

#1 80705561 CABLE UNIT 16X50CC IS-8H192 1CN2 09100337 CONNECTOR DBLC-J25SAF-23L6 1XTAL 09250039 CERA. OSCILLATOR EFO-W4914B5 1


5-7-3. Parts List


– 116 –

6. Serial - Parallel Converter Board ( Option )

6-1. Wiring Scheme

– 117 –


6-2-3. Parts List


IC101 08200125 IC-I/F LT1081CN 1IC102 08200109 IC-RESET M51953BL 1R101 NPN RD RESISTOR 3.3 K-OHM 1/6W 1C101-104 NPN CHEM. CAPA. 4.7UF 25V 4C105 NPN CAPACITOR 0.1UF 50V 1CN101 09100461 CONNECTOR DBLC-J25SAF-23L8 1CN102 09100462 CONNECTOR 5532-08A 1J101-108 93930006 JUMPER WIRE STP122 8 P=10mm

6-2. I/F Board

6-2-1. Circuit diagram

– 118 –

6-3. CPU Board

6-3-1. Circuit diagram

– 119 –


6-3-3. Parts List


IC1 08250011 MASKED CPU HD63B01YF-IF 1IC2 08221021 SRAM HM6264LFP-100NS 1TR1 07603007 DIGITAL TRANSISTOR RTIN434C-T 1R1 NPN CHIP RESISTOR 4.7 K-OHM 1/10W 1TR2-4 06751021 CHIP RESISTOR 1 K-OHM 1/10W 3TR5 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W 1TR6-7 06783313 CHIP RESISTOR 330 OHM 1/8W 2TR8 06754721 CHIP RESISTOR 4.7 K-OHM 1/10W 1RA1 NPN RESIS. ARRAY 4.7K-OHM 1/16W8EL 1C1 NPN CERA. CAPA. CHIP 0.1UF 25V 1C2 NPN TANTALUM CAPA. CHIP 4.7UF 10V 1C3 NPN CERA. CAPA. CHIP 0.1UF 25V 1C4 NOT USEDC5-6 NPN CERA. CAPA. CHIP 1000PF 50V 2XTAL1 09250039 CERA. OSCILLATOR EFO-W4914B5 1DSW1 09090018 DIP SWITCH KSD08 1SW1 09010047 PUSH SWITCH SKHHLS0001 1CN1A-1B 80706070 INTERFACE CABLE SPC-8K 1CN2 09100463 CONNECTOR 5533-08CPB 1

– 120 –

7. Waveform with Oscilloscope

(1) Crystal (12 MHz) (2) RESET (Power on reset)

Crystal Pin 34 of IC6 Upper : RESET input Pin 1 of IC8Time/Div : 0.2 µs Lower : RESET output Pin 3 of IC8Volt/Div : 1V Time/Div : 10 ms

Volt/Div : 2V

(3) Protection Circuit (4) Head Energizing Control Signal(LC-1511)

Upper : RESET Pin 3 of IC8 Upper : HDEN Pin 57 of IC5Lower : Drive Collector of TR9 Lower : HD1 Data Pin 47 of IC5

Time/Div : 5 ms Time/Div : 50µsVolt/Div : Upper 2V Volt/Div : Upper 2V

Lower 2V Lower 2V

(5) Head Energizing Control Signal (6) Print Head Control Signal and Waveform(LC-1521) (LC-1511)

Upper : HDEN Pin 57 of IC5 Upper : HD1 Data Pin 47 of IC5Lower : HD1 Data Pin 47 of IC5 Lower : HD1 Pin 2 of CN9

Time/Div : 50µs Time/Div : 0.1 msVolt/Div : Upper 2V Volt/Div : Upper 5V

Lower 2V Lower 20V

(4V)

(0V)

(4V)

(0V)

(2V)

(0V)

(4V)

(0V)

(4V)

(0V)

(0V)

(4V)

(0V)

(4V)

(0V)

(4V)

(0V)

(4V)(5V)(0V)

(0V)

(40V)

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(7) Print Head Control Signal and Waveform (8) Carriage Motor Control Signal and Driving Signal(LC-1521) (LC-1511)

Upper : HD1 Data Pin 47 of IC5 Upper : Carriage-ø1 Control Signal Pin 38 of IC5Lower : HD1 Pin 3 of CN9 Lower : Carriage-ø1 Driving Signal Pin 3 of CN6

Time/Div : 0.1 ms Time/Div : 2 msVolt/Div : Upper 5V Volt/Div : Upper 5V

Lower 20V Lower 20V

(9) Carrige Motor Control Signal and Driving Signal (10)Paper Feed Motor Common Control Signal and (LC-1521) Driving Signal (LC-1511)

Upper : Carriage-ø1 Control Signal Pin 38 of IC5 Upper : LF-CM Control SignalPin 39 of IC5Lower : Carriage-ø1 Driving Signal Pin 3 of CN6 Lower : LF-CM Driving SignalPin 1 of CN4

Time/Div : 2 ms Time/Div : 20 msVolt/Div : Upper 5V Volt/Div : Upper 2V

Lower 20V Lower 10V

(11)Paper Feed Motor Common Control Signal and (12)Paper Feed Motor Control Signal andDriving Signal (LC-1521) Driving Signal (LC-1511)

Upper : LF-CM Control SignalPin 39 of IC5 Upper : LF-ø1 Control Signal Pin 13 of IC6Lower : LF-CM Driving SignalPin 1 of CN4 Lower : LF-ø1 Driving Signal Pin 3 of CN4


Lower 10V Lower 20V

(5V)

(0V)

(60V)

(0V)

(5V)(0V)

(0V)

(60V)

(5V)

(0V)

(60V)

(0V)

(4V)

(0V)

(30V)

(0V)

(4V)

(0V)

(30V)

(0V)

(5V)

(0V)

(60V)

(0V)

– 122 –

(13)Paper Feed Motor Control Signal and Driving (14)Parallel Interface (parallel type Only)Signal (LC-1521)

Upper : LF-ø1 Control Signal Pin 13 of IC6 Upper : STB Pin 1 of CN1Lower : LF-ø1 Driving Signal Pin 3 of CN4 Lower : BUSY Pin 11 of CN1


Lower 20V Lower 2V

(5V)

(0V)

(60V)

(0V)

(5V)

(0V)

(4V)

(0V)

Printed in Japan, 80823431HA-15/15H

Distributed by

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Star Lc-1511 1521 Technical Service Manual

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Transcript of Star Lc-1511 1521 Technical Service Manual