HP Color LaserJet 4700 SeriesService Manual

HP Color LaserJet 4700 Series

Service Manual

Copyright

© 2005 Copyright Hewlett-PackardDevelopment Company, L.P.

Reproduction, adaptation or translationwithout prior written permission isprohibited, except as allowed under thecopyright laws.

The information contained herein is subjectto change without notice.

The only warranties for HP products andservices are set forth in the expresswarranty statements accompanying suchproducts and services. Nothing hereinshould be construed as constituting anadditional warranty. HP shall not be liablefor technical or editorial errors or omissionscontained herein.

Q7491-90932

Edition 1, 9/2005

FCC Class A Statement

This equipment has been tested and foundto comply with the limits for a Class Adigital device, pursuant to Part 15 of theFCC Rules. These limits are designed toprovide reasonable protection againstharmful interference when the equipment isoperated in a commercial environment.This equipment generates, uses and canradiate radio frequency energy and, if notinstalled and used in accordance with theinstruction manual, may cause harmfulinterference to radio communications.Operation of this equipment in a residentialarea is likely to cause harmful interference,in which case the user will be required tocorrect the interference at his ownexpense. The end user of this productshould be aware that any changes ormodifications made to this equipmentwithout the approval of Hewlett-Packardcould result in the product not meeting theClass A limits, in which case the FCCcould void the user’s authority to operatethe equipment.

Trademark Credits

Adobe Photoshop® and PostScript aretrademarks of Adobe Systems Incorporated.

CorelDRAW™ is a trademark or registeredtrademark of Corel Corporation or CorelCorporation Limited.

Linux is a U.S. registered trademark ofLinus Trovalds.

Microsoft®, Windows®, MS-DOS®, andWindows NT® are U.S. registeredtrademarks of Microsoft Corporation.

Netscape™ and Netscape Navigator™ areU.S. trademarks of NetscapeCommunications Corporation.

PANTONE® Pantone, Inc's check-standard trademark for color.

UNIX® is a registered trademark of theOpen Group.

TrueType™ is a U.S. trademark of AppleComputer, Inc.

ENERGY STAR® and the ENERGY STARlogo® are U.S. registered marks of theUnited States Environmental ProtectionAgency. Details on the proper use of themarks are explained in the "Guidelines forProper use of the ENERGY STAR® Nameand International Logo."

Safety Information

WARNING!

Potential Shock Hazard

Always follow basic safety precautionswhen using this product to reduce the riskof injury from fire or electric shock.

Table of contents

1 Product informationPrinter configurations ..............................................................................................................................2

HP Color LaserJet 4700 (part number Q7491A) ...................................................................2HP Color LaserJet 4700n (part number Q7492A) .................................................................3HP Color LaserJet 4700dn (part number Q7493A) ...............................................................3HP Color LaserJet 4700dtn (part number Q7494A) ..............................................................3HP Color LaserJet 4700ph+ (part number Q7495A) .............................................................4

Printer features .......................................................................................................................................5Printer walkaround ..................................................................................................................................8Identification, site requirements, and specifications .............................................................................10

Model and serial numbers ...................................................................................................10Power and regulatory label .................................................................................................10Site requirements .................................................................................................................11

Space requirements ............................................................................................12Physical specifications ........................................................................................13

Electrical specifications ........................................................................................................13Environmental specifications ...............................................................................................14Acoustic emissions ..............................................................................................................14Supply storage requirements ..............................................................................................14Skew specifications ..............................................................................................................15

Media specifications .............................................................................................................................16Printing and paper storage environment .............................................................................16Envelopes ............................................................................................................................17

Envelopes that have double side seams ............................................................18Envelopes that have adhesive strips or flaps .....................................................18Envelope margins ...............................................................................................18Envelope storage ................................................................................................18

Labels ...................................................................................................................................19Label construction ...............................................................................................19

Transparencies ....................................................................................................................19Supported types and sizes of print media ...........................................................................20Media to avoid ......................................................................................................................23Media that can damage the printer ......................................................................................24

Printing on special media .....................................................................................................................25Transparencies ....................................................................................................................25Glossy paper ........................................................................................................................25Colored paper ......................................................................................................................26Envelopes ............................................................................................................................26Labels ...................................................................................................................................26Heavy paper .........................................................................................................................26

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HP LaserJet Tough paper ....................................................................................................27Preprinted forms and letterhead ..........................................................................................27Recycled paper ....................................................................................................................28Weight equivalence table .....................................................................................................28

Environmental Product Stewardship program ......................................................................................30Protecting the environment ..................................................................................................30Ozone production .................................................................................................................30Power consumption .............................................................................................................30HP LaserJet printing supplies ..............................................................................................30Disposal of waste equipment by users in private households in the European Union .......32Material safety data sheet ....................................................................................................33For more information ............................................................................................................33

Hewlett-Packard Limited Warranty Statement .....................................................................................34Print Cartridge Limited Warranty Statement ........................................................................................35Country/region-specific safety statements ...........................................................................................36

Laser safety statement ........................................................................................................36Canadian DOC statement ....................................................................................................36Japanese VCCI statement ...................................................................................................36Japanese cordset statement ................................................................................................36Korean EMI statement .........................................................................................................37Taiwan safety statement ......................................................................................................37Finnish laser statement ........................................................................................................38Australia ...............................................................................................................................38

Declaration of conformity (HP Color LaserJet 4700) ............................................................................39

2 Service approachService approach ..................................................................................................................................42Parts and supplies ................................................................................................................................43

Ordering parts, supplies, and accessories over the Internet ...............................................43Ordering directly through the embedded Web server (for printers with networkconnections) .........................................................................................................................43Exchange program ...............................................................................................................43Supplies ...............................................................................................................................43World Wide Web ..................................................................................................................43HP Service Parts Information ..............................................................................................44

HP available services ...........................................................................................................................45Ordering related documentation and software .....................................................................................47

3 Installation and configurationWhat ships in the box ...........................................................................................................................50Unpacking the printer ...........................................................................................................................51Loading detectable standard-sized media into Tray 2 and optional trays ............................................56Connecting power .................................................................................................................................58Installing a new control panel label ......................................................................................................59Testing the printer operation .................................................................................................................60Sleep delay ...........................................................................................................................................61

Setting sleep delay ...............................................................................................................61Disabling/enabling sleep mode ............................................................................................61

Connecting to a computer ....................................................................................................................62Parallel configuration ...........................................................................................................62

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USB configuration ................................................................................................................62Auxiliary connection configuration .......................................................................................63HP Jetdirect print servers ....................................................................................................64

Available software solutions ................................................................................65Wireless printing ..................................................................................................................65

IEEE 802.11 standard .........................................................................................65Bluetooth .............................................................................................................65

Printer software .....................................................................................................................................66Software ...............................................................................................................................66

Software features ................................................................................................66Driver Autoconfiguration ......................................................................................66Update Now .........................................................................................................66HP Driver Preconfiguration .................................................................................67

Installing the printing system software .................................................................................67Installing Windows printing system software for direct connections ...................67Installing Windows printing system software for networks .................................68Setting up a Windows computer to use the network printer with Windows-sharing .................................................................................................................69Installing the software after the parallel or USB cable has been connected ......69

Uninstalling the software ......................................................................................................69Removing software from Windows operating systems .......................................70

Software for networks ..........................................................................................................70HP Web Jetadmin ...............................................................................................70UNIX ....................................................................................................................71

Utilities ..................................................................................................................................71Embedded Web server .......................................................................................71

Features .............................................................................................71Other components and utilities ...........................................................................72

Printer drivers .......................................................................................................................................73Supported printer drivers .....................................................................................................73Additional drivers .................................................................................................................73Select the correct printer driver ............................................................................................74Printer-driver Help (Windows) ..............................................................................................74Gaining access to the printer drivers ...................................................................................74

Printer drivers for Macintosh computers ...............................................................................................76Supported printer drivers .....................................................................................................76Gaining access to the printer drivers ...................................................................................76

Software for Macintosh computers .......................................................................................................78Installing Macintosh printing system software for networks ................................................78Installing Macintosh printing system software for direct connections (USB) .......................79To remove software from Macintosh operating systems .....................................................80

Network configuration ...........................................................................................................................81Configuring TCP/IP parameters ...........................................................................................81

Manually configuring TCP/IP parameters from the printer control panel ............81Setting an IP address ..........................................................................................81Setting the subnet mask ......................................................................................82Setting the default gateway .................................................................................83Disabling network protocols (optional) ................................................................83Disabling IPX/SPX ..............................................................................................84Disabling DLC/LLC ..............................................................................................84

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Disabling AppleTalk ............................................................................................85Setting network security on the printer .................................................................................................86

Locking the control panel .....................................................................................................86Levels of security ..............................................................................................86Using an ASCII PJL escape sequence to set network security .........................86

4 MaintenanceCleaning the printer and accessories ...................................................................................................90

Cleaning spilled toner ..........................................................................................................90Vacuum specifications ........................................................................................90

Performing preventive maintenance .....................................................................................................91Managing the print cartridge .................................................................................................................92

HP print cartridges ...............................................................................................................92Non-HP print cartridges .......................................................................................................92Print cartridge authentication ...............................................................................................92Print cartridge storage .........................................................................................................92Print cartridge life expectancy ..............................................................................................92Checking the supply level ....................................................................................................93

Using the control panel .......................................................................................93Using the embedded Web server .......................................................................93Using HP Web Jetadmin .....................................................................................93

Approximate replacement intervals for supplies ..................................................................................94ETB life .................................................................................................................................................95Changing print cartridges .....................................................................................................................96

Replacing a print cartridge ...................................................................................................96To replace the print cartridge ...............................................................................................96

Replacing supplies ...............................................................................................................................99Locating supplies .................................................................................................................99Supply replacement guidelines ............................................................................................99Making room around the printer for replacing supplies .....................................................100Replacing the stapler cartridge ..........................................................................................100Replacing the ETB .............................................................................................................103Replacing the fuser ............................................................................................................103

Printer memory and fonts ...................................................................................................................105Installing a hard drive, memory, and fonts .........................................................................................106

Installing a hard drive .........................................................................................................106Installing DDR memory DIMMs .........................................................................................109Installing a flash memory card ...........................................................................................113Enabling memory ...............................................................................................................117

To enable memory for Windows 98 and Me .....................................................117To enable memory for Windows 2000 and XP .................................................117

Installing an HP Jetdirect print server card ........................................................................................118To install an HP Jetdirect print server card ........................................................................118

Setting the real-time clock ..................................................................................................................122Setting the date and time ...................................................................................................122

To set the date format .......................................................................................122To set the date ..................................................................................................122To set the time format .......................................................................................123To set the time ..................................................................................................123

Setting the wake time ........................................................................................................124

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To set the wake time .........................................................................................124Setting the sleep delay ......................................................................................................125

To set the sleep delay .......................................................................................125

5 Theory of operationBasic operation ...................................................................................................................................128

Operation sequence ..........................................................................................................128Power on sequence ...........................................................................................................129

Internal components ...........................................................................................................................131Formatter system ................................................................................................................................133

Sleep mode ........................................................................................................................133Image Resolution Enhancement technology (REt) ...........................................................134Input/Output .......................................................................................................................134

Parallel interface ...............................................................................................134USB 2.0 connector ............................................................................................134ACC accessory port ..........................................................................................134Flash ..................................................................................................................135Hard drive accessory ........................................................................................135CPU ...................................................................................................................135

Printer memory ..................................................................................................................135Read-only memory ............................................................................................135Random-access memory ..................................................................................135

DIMM slots .........................................................................................................................135Flash memory ...................................................................................................135Nonvolatile memory ..........................................................................................135

PJL overview ......................................................................................................................136PML ....................................................................................................................................136Control panel ......................................................................................................................136

Engine control system ........................................................................................................................137DC controller PCB ..............................................................................................................137

Block operation .................................................................................................139Motors, fans, and environment sensor ..............................................................................139Failure detection ................................................................................................................141

Drum motor failure detection .............................................................................141Fuser motor failure detection ............................................................................142ETB motor failure detection ..............................................................................142Upper exhaust fan failure detection ..................................................................142Cartridge fan failure detection ...........................................................................142Delivery fan failure detection .............................................................................142Power supply fan failure detection ....................................................................142Duplexer fan failure detection ...........................................................................143

Low-voltage power supply .................................................................................................143Fuser control circuit ...........................................................................................143Low-voltage power supply circuit ......................................................................145

Protective functions ..........................................................................146Safety ...............................................................................................147Sleep mode ......................................................................................147Power supply recognition .................................................................147

Heater temperature control ................................................................................................147Initial rotation temperature control ....................................................................148

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Start-up temperature control .............................................................................148Print temperature control ...................................................................................149Between-sheets temperature control ................................................................149

Temperature protective function ........................................................................................149Protective function by the CPU .........................................................................149Protective function by the fuser heater safety circuit ........................................149Protective function by the thermoswitch ...........................................................150

Temperature failure detection ............................................................................................150Start-up failure (warmup failure) .......................................................................150Abnormal low temperature of main thermistor (no conduction) ........................150Abnormal high temperature of main thermistor ................................................150Abnormal low temperature of sub thermistor (no conduction) ..........................151Abnormal high temperature of sub thermistor ..................................................151Drive circuit abnormality ....................................................................................151

High-voltage power supply ................................................................................................151Generation of biases .........................................................................................152

Video interface control .......................................................................................................154Laser/scanner system ........................................................................................................................155

Laser control ......................................................................................................................156Scanner control ..................................................................................................................157

Image formation system .....................................................................................................................159Image formation process ...................................................................................................161Electrostatic latent image formation block .........................................................................163

Step 1: Pre-exposure ........................................................................................163Step 2: Primary charging ...................................................................................164Step 3: Laser beam exposure ...........................................................................164

Development block ............................................................................................................164Step 4: Development .........................................................................................164

Transfer block ....................................................................................................................165Step 5: Attraction ...............................................................................................165Step 6: Transfer ................................................................................................165Step 7: Separation ............................................................................................166

Fusing block .......................................................................................................................166Step 8: Fusing ...................................................................................................166

Cleaning block ...................................................................................................................167Step 9: Drum cleaning .......................................................................................167

Print cartridges ...................................................................................................................167Memory tag .......................................................................................................169

Cartridge presence detection .............................................................................................169Memory tag detection ........................................................................................169Photosensitive drum detection ..........................................................................169Developing cylinder disengaging control ..........................................................170

ETB (electrostatic transfer/transport belt) ..........................................................................170Transfer roller (Y, C, M) engagement/disengagement detection ......................................172Transfer roller engagement/disengagement control ..........................................................172Calibration and cleaning ....................................................................................................173

ETB cleaning .....................................................................................................174Color misregistration corrective control ............................................................175

Color misregistration detection ..........................................................................................176Image stabilization control .................................................................................................177

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Environmental change control ..........................................................................178Conditions leading up to DHALF .......................................................................179Image halftone calibration control (DHALF) ......................................................179Image density detection ....................................................................................179

Pickup/feed system ............................................................................................................................181Pickup/feed unit .................................................................................................................186

Paper tray detection and paper tray media size detection ...............................186Paper tray pickup operation ..............................................................................187Media lift-up operation .......................................................................................188

Initial lift-up .......................................................................................188Lift-up during printing ........................................................................188

Multiple-feed prevention ....................................................................................189Skew correction .................................................................................................191Media detection .................................................................................................192Feed speed control ...........................................................................................193

Fusing and delivery block ..................................................................................................194Loop control .......................................................................................................194Fusing pressure release mechanism ................................................................195Jam detection ....................................................................................................196

Pickup delay jam ..............................................................................197Pickup stationary jam .......................................................................197Delivery delay jam ............................................................................197Door open jam ..................................................................................197Residual paper jam ..........................................................................197Reversing unit jam 1 .........................................................................197Reversing unit jam 2 .........................................................................198Duplexing pickup unit jam 1 .............................................................198Automatic delivery function ..............................................................198

Duplex feed unit .................................................................................................................198Reversing/duplexing feed operation .................................................................199Jam detection ....................................................................................................201

Reversing unit jam 1 .........................................................................202Reversing unit jam 2 .........................................................................202Duplexing pickup unit jam 1 (Duplexing unit stationary jam) ...........202

500-sheet paper feeder ......................................................................................................................203Pickup and feed operations ...............................................................................................204

Stapler/stacker ....................................................................................................................................206Staple mode .......................................................................................................................206Stacker mode .....................................................................................................................206Offset mode .......................................................................................................................206Messages ...........................................................................................................................207

6 Removal and replacementRemoval and replacement strategy ....................................................................................................210

Repair notices ....................................................................................................................210Caution regarding electrostatic discharge (ESD) ..............................................................210Required tools ....................................................................................................................210Types of screws .................................................................................................................211Parts-removal tree .............................................................................................................212

User-replaceable parts .......................................................................................................................213

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Print cartridges and ETB ....................................................................................................214Fuser ..................................................................................................................................214Tray 1 pickup roller and separation pad ............................................................................214Tray 2-x separation roller ...................................................................................................217Tray 2-x feed and pickup rollers ........................................................................................218Formatter ...........................................................................................................................219Compact flash ....................................................................................................................220HP Jetdirect print server card ............................................................................................220DDR memory DIMMs .........................................................................................................220Hard drive ..........................................................................................................................220Installing a new control panel label ....................................................................................220

Covers and external components .......................................................................................................222Paper tray (Tray 2) .............................................................................................................223Multipurpose tray (Tray 1) ..................................................................................................223Front cover .........................................................................................................................227Duplex cover ......................................................................................................................231Face down tray assembly ..................................................................................................231Top cover ...........................................................................................................................232Right cover .........................................................................................................................237Left cover ...........................................................................................................................239Rear cover .........................................................................................................................241Control panel ......................................................................................................................242

Main assemblies .................................................................................................................................245Disengaging drive assembly ..............................................................................................246Main drive assembly ..........................................................................................................248Pickup motor assembly ......................................................................................................259Lifter drive assembly ..........................................................................................................260Delivery assembly ..............................................................................................................263Paper feed assembly .........................................................................................................268Fuser drive assembly .........................................................................................................271Laser/scanner assembly ....................................................................................................272

Motors and fans ..................................................................................................................................282Disengaging drive motor ....................................................................................................283Drum drive motors (Y/C/M/K) ............................................................................................283Power supply fan/shroud (Fan 4) ......................................................................................284Delivery fan/shroud (Fan 3) ...............................................................................................285Cartridge fan/shroud (Fan 2) .............................................................................................287Upper exhaust fan (Fan 1) .................................................................................................290

Sensors and switches .........................................................................................................................293Environment sensor ...........................................................................................................293Power switch assembly .....................................................................................................294

PCBs ...................................................................................................................................................297DC controller PCB ..............................................................................................................297Low-voltage power supply PCB .........................................................................................304Memory controller PCB ......................................................................................................306E label memory contacts and cable ...................................................................................307High-voltage power supply PCB ........................................................................................309Toner level detection PCB .................................................................................................311High-voltage contacts ........................................................................................................311

500-sheet paper feeder ......................................................................................................................313

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500-sheet paper feeder right cover ...................................................................................314500-sheet paper feeder rear cover ....................................................................................314500-sheet paper feeder left cover ......................................................................................315500-sheet paper feeder front cover ...................................................................................316500-sheet paper pickup drive assembly ............................................................................318500-sheet paper feeder lifter drive assembly ....................................................................322500-sheet paper feeder pickup rollers ...............................................................................324

Stapler/stacker ....................................................................................................................................325Remove the stapler/stacker from the printer .....................................................................325Staple cartridge left cover ..................................................................................................326Output tray .........................................................................................................................326Left cover ...........................................................................................................................327Top cover ...........................................................................................................................327Right cover .........................................................................................................................329Staple cartridge ..................................................................................................................331Stapler/stacker PCB ...........................................................................................................332Stapler/stacker unit assembly 24v 2.5 amp .......................................................................333

Duplexer .............................................................................................................................................334Top duplexing assembly ....................................................................................................334Duplex tray .........................................................................................................................334

7 TroubleshootingIntroduction .........................................................................................................................................338Troubleshooting process ....................................................................................................................340

Pre-troubleshooting checklist .............................................................................................340Troubleshooting checklist ..................................................................................................341Troubleshooting flowchart ..................................................................................................342Power-on checks ...............................................................................................................343

Power-on troubleshooting overview ..................................................................343Control panel messages .....................................................................................................................345

Warning messages ............................................................................................................345Error messages ..................................................................................................................345Critical error messages ......................................................................................................345Message listing ..................................................................................................................345

Formatter lights ...................................................................................................................................381Embedded HP Jetdirect LEDs ...........................................................................................381Heartbeat LED ...................................................................................................................382

Accessory lights ..................................................................................................................................383Interpreting stapler/stacker indicator light codes ...............................................................383

Replacement parts configuration ........................................................................................................386Formatter and DC controller ..............................................................................................386Formatter (new or previously installed in another printer) .................................................386DC controller (new or previously installed in another printer) ...........................................387Formatter and firmware compact flash ..............................................................................387

Paper path troubleshooting ................................................................................................................388Jams ...................................................................................................................................388Jam locations .....................................................................................................................388Jam locations by error message ........................................................................................390Jam recovery .....................................................................................................................391

To disable paper jam recovery ..........................................................................392

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Avoiding jams .....................................................................................................................392Solving repeated jams .......................................................................................................393Persistent jams ..................................................................................................................393

Basic troubleshooting for jams ..........................................................................393Data collection ...................................................................................................394General paper path troubleshooting .................................................................394Paper path checklist ..........................................................................................395Jams in Tray 1 ...................................................................................................395Jams in Tray 2 ...................................................................................................396Jams in the paper path ......................................................................................397Jams in the top cover ........................................................................................397Jams in the duplex path ....................................................................................398

Common causes of paper jams .........................................................................................399Paper jams ........................................................................................................399

Clearing jams .....................................................................................................................400Jam in Tray 1 ....................................................................................................400Jam in Tray 2 or optional trays ..........................................................................401Jams in top cover area ......................................................................................402

Clearing a jam in the top cover area ................................................403Clearing other jams ...........................................................................................405Jams in the stapler/stacker ...............................................................................408Staple jams ........................................................................................................414

Paper transport troubleshooting .........................................................................................................417Multiple pages are fed .......................................................................................................417Media is wrinkled or folded ................................................................................................417Paper is skewed .................................................................................................................418

Image formation troubleshooting ........................................................................................................419Print quality troubleshooting tools ......................................................................................419Print quality problems associated with media ...................................................................419Overhead transparency defects .........................................................................................420Print quality problems that are associated with the environment ......................................421Print quality problems that are associated with jams ........................................................421Print quality troubleshooting pages ...................................................................................421Understanding color variations ..........................................................................................421

Common causes of color variation ....................................................................422Color selection process .....................................................................................................422Matching colors ..................................................................................................................422

PANTONE® color matching ..............................................................................422Swatch book color matching .............................................................................422

Using color .........................................................................................................................423HP ImageREt 3600 ...........................................................................................423Paper selection .................................................................................................423sRGB .................................................................................................................423Adobe® RGB ....................................................................................................424CMYK+ ..............................................................................................................424

Color options ......................................................................................................................424Print in grayscale ...............................................................................................424Automatic or manual color adjustment .............................................................425Manual color options .........................................................................................425Halftone options ................................................................................................425

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Neutral Grays ....................................................................................................425Edge Control .....................................................................................................425RGB Color .........................................................................................................426

Adjusting color balance ......................................................................................................426To adjust color density ......................................................................................426Web-downloadable color tables ........................................................................427

Image defects .....................................................................................................................................428Light image ........................................................................................................................429Light color ..........................................................................................................................430Dark image .........................................................................................................................430Dark color ...........................................................................................................................431Completely blank image ....................................................................................................431All black or solid color ........................................................................................................432Dots in vertical lines ...........................................................................................................433Dirt on the front or back of the paper .................................................................................433Vertical lines .......................................................................................................................434White vertical lines .............................................................................................................434Horizontal lines ..................................................................................................................435White horizontal lines .........................................................................................................435Missing color ......................................................................................................................435Blank spots ........................................................................................................................436Poor fusing .........................................................................................................................437Distortion or blurring ...........................................................................................................438Smearing ............................................................................................................................439Misplaced image ................................................................................................................439Repetitive defects troubleshooting ....................................................................................440

Repetitive defect ruler .......................................................................................440Interface troubleshooting ....................................................................................................................443

Communications checks ....................................................................................................443AUTOEXEC.BAT standard configurations ........................................................................443

Parallel MS-DOS commands ............................................................................443Printer Job Language (PJL) commands ............................................................................443

@PJL [Enter] .....................................................................................................443UEL ...................................................................................................................444@PJL COMMENT .............................................................................................444@PJL INFO CONFIG ........................................................................................444@PJL INFO ID ..................................................................................................444@PJL INFO USTATUS .....................................................................................444@PJL INFO PAGECOUNT ...............................................................................444@PJL JOB ........................................................................................................444@PJL EOJ ........................................................................................................445@PJL ECHO .....................................................................................................445@PJL USTATUS JOB=ON/OFF .......................................................................445@PJL USTATUSOFF .......................................................................................445

Changing printer control panel configuration settings ........................................................................446Job storage limit .................................................................................................................446

Setting the job storage limit ...............................................................................446Job held timeout .................................................................................................................446

Setting the job held timeout ..............................................................................446Show IP address ................................................................................................................447

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Showing the IP address ....................................................................................447Color/black mix ..................................................................................................................447

Setting the color/black mix ................................................................................447Tray behavior options ........................................................................................................448

Setting the printer to use the requested tray .....................................................448Setting manually feed prompt ...........................................................................449Setting the printer default for PS defer media ...................................................449Setting the printer to use size/type prompt .......................................................450Setting the printer to use another tray ..............................................................450Setting the printer to duplex blank pages .........................................................451Setting the printer to rotate images ...................................................................451

Sleep delay ........................................................................................................................451Setting sleep delay ............................................................................................452Disabling/enabling sleep mode .........................................................................452

Wake time ..........................................................................................................................452Setting the wake time ........................................................................................453

Display brightness ..............................................................................................................453Setting the display brightness ...........................................................................453

Personality .........................................................................................................................454Setting the personality .......................................................................................454

Clearable warnings ............................................................................................................454Setting the clearable warnings ..........................................................................455

Auto continue .....................................................................................................................455Setting auto continue ........................................................................................455

Replace supplies ................................................................................................................456Setting replace supplies response ....................................................................456

Order at ..............................................................................................................................456Setting order at response ..................................................................................456

Color supply out .................................................................................................................457Setting color supply out response .....................................................................457

Jam recovery .....................................................................................................................457Setting jam recovery response .........................................................................458

RAM disk ............................................................................................................................458Changing RAM disk behavior ...........................................................................458

Language ...........................................................................................................................458Selecting the language ......................................................................................459Selecting the language if the display is in a language you do notunderstand ........................................................................................................459

Using the printer control panel in shared environments ....................................................459Control panel troubleshooting ............................................................................................................460

Printing a menu map ..........................................................................................................460Information menu ...............................................................................................................460Paper handling menu .........................................................................................................462Configure device menu ......................................................................................................464

Printing submenu ..............................................................................................464PCL submenu ...................................................................................................468Print quality submenu ........................................................................................469System setup submenu .....................................................................................472Stapler/stacker submenu ..................................................................................476I/O submenu ......................................................................................................477

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Embedded Jetdirect submenu ..........................................................................478Resets submenu ...............................................................................................482

Diagnostics menu ..............................................................................................................483Service menu .....................................................................................................................486

Tools for troubleshooting ....................................................................................................................487Using the embedded Web server ......................................................................................487

Accessing the embedded Web server ..............................................................487Information tab ..................................................................................................488Settings tab .......................................................................................................488Setting the real-time clock .................................................................................489Networking tab ..................................................................................................489Other links .........................................................................................................489

Configuration pages ...........................................................................................................489Configuration page ............................................................................................489HP embedded Jetdirect page ...........................................................................491Paper handling configuration page ...................................................................492Finding important information on the configuration pages ................................493

Print the supplies status page ............................................................................................494Print the usage page ..........................................................................................................495Print the demo page ...........................................................................................................496Print the file directory page ................................................................................................497Print the PCL font list page ................................................................................................497Print the PS font list page ..................................................................................................498Print the RGB samples page .............................................................................................499Print the CMYK samples page ...........................................................................................500

Diagnostics .........................................................................................................................................502LED diagnostics .................................................................................................................502Engine diagnostics .............................................................................................................503

Diagnostics mode ..............................................................................................503Diagnostics that put the engine into the special diagnostics mode ..................503Diagnostic tests .................................................................................................503

Individual diagnostic tests ..................................................................................................504Print the event log page ....................................................................................504View the event log on the control panel display ................................................505Print the PQ troubleshooting pages ..................................................................506Diagnostics page ...............................................................................................507Disable cartridge check (special mode test) .....................................................508Paper path sensors (special mode test) ...........................................................509Paper path test ..................................................................................................509Finishing paper path test ...................................................................................510Manual sensor test (special mode test) ............................................................510Manual sensor test 2 (special mode test) .........................................................513Component test (special mode test) .................................................................514Print/Stop test ....................................................................................................517Colorband test ...................................................................................................517Information menu ..............................................................................................517Configure device menu/printing menu ..............................................................518Configure device menu/print quality menu .......................................................518Configure device menu/resets menu ................................................................518

Test pages ..........................................................................................................................................519

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Engine test page ................................................................................................................519Formatter test page ............................................................................................................519

Engine resets ......................................................................................................................................520Cold reset ...........................................................................................................................520

To perform a cold reset .....................................................................................520NVRAM initialization ..........................................................................................................520

To initialize NVRAM ..........................................................................................520Hard disk initialization ........................................................................................................521

To initialize the hard disk ...................................................................................521Calibration bypass .............................................................................................................521

To bypass calibration ........................................................................................521Quick Calibrate Now ..........................................................................................................521Full Calibrate Now ..............................................................................................................521

Service menu ......................................................................................................................................523Using the Service menu .....................................................................................................523

Clear event log ..................................................................................................523Mono cycle count/Color cycle count .................................................................523Serial number ....................................................................................................523Service ID ..........................................................................................................523Restoring the Service ID ...................................................................................523Converting the Service ID to an actual date .....................................................524Cold reset paper ................................................................................................524

Diagrams ............................................................................................................................................525Main parts ..........................................................................................................................525Switches .............................................................................................................................527Sensors ..............................................................................................................................528Solenoids ...........................................................................................................................529Motors and fans .................................................................................................................530PCBs ..................................................................................................................................531DC controller PCB ..............................................................................................................532Connectors .........................................................................................................................533General timing chart ...........................................................................................................539General circuit diagrams ....................................................................................................540

8 Parts and diagramsIntroduction .........................................................................................................................................544Ordering parts and supplies ...............................................................................................................545

Parts that wear ...................................................................................................................545Parts ...................................................................................................................................545Customer support ..............................................................................................................545Supplies and accessories ..................................................................................................545Common fasteners .............................................................................................................548

User-replaceable parts .......................................................................................................................549Assembly locations .............................................................................................................................552

Major components .............................................................................................................552External covers and panels ................................................................................................................554Internal components ...........................................................................................................................558Accessories ........................................................................................................................................594Alphabetical parts list...........................................................................................................................612Numerical parts list..............................................................................................................................618

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