Service Manual · Control-panel layout ... Using the product control panel ... Replacing the stapler cartridge ...

HP Color LaserJet CM4730 MFPService Manual

Table of contents

1 Product informationProduct comparison ............................................................................................................................... 2

HP Color LaserJet CM4730 MFP ......................................................................................... 2HP Color LaserJet CM4730f MFP ........................................................................................ 3HP Color LaserJet CM4730fsk MFP .................................................................................... 3HP Color LaserJet CM4730fm MFP ..................................................................................... 4

Product features .................................................................................................................................... 5Product walkaround ............................................................................................................................... 9

Front view .............................................................................................................................. 9Back view ............................................................................................................................ 10Interface ports ..................................................................................................................... 11Serial number and model number location ......................................................................... 11

Media specifications ............................................................................................................................ 13Understand paper and print media use .............................................................................. 13Supported paper and print media sizes .............................................................................. 13Custom paper sizes ............................................................................................................ 15Special paper or print media guidelines ............................................................................. 15

Information pages ................................................................................................................................ 16

2 InstallationInstallation checklist ............................................................................................................................. 20Unpacking the MFP ............................................................................................................................. 22Connecting power ................................................................................................................................ 26Installing print cartridges ...................................................................................................................... 27Installing a new control panel overlay ................................................................................................. 29Install memory and print server cards ................................................................................................. 30

Install memory and fonts ..................................................................................................... 30Install DDR memory DIMMs .............................................................................. 30Install a flash memory card ................................................................................ 30Enabling memory ............................................................................................... 31

Install an HP Jetdirect or EIO print server card .................................................................. 31Test the MFP operation ....................................................................................................................... 35Sleep and wake ................................................................................................................................... 36Connecting to a computer or network ................................................................................................. 37

Parallel connection .............................................................................................................. 37USB connection .................................................................................................................. 38Auxiliary connection ............................................................................................................ 39Fax connection .................................................................................................................... 40

Analog faxing ..................................................................................................... 40

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Connecting the fax accessory to a phone line .................................. 40Configuring and using the fax features ............................................. 41

Digital faxing ....................................................................................................... 41Printer software .................................................................................................................................... 42

Software for Windows ......................................................................................................... 42Supported Windows versions ............................................................................ 42Install the printing-system software .................................................................... 42

Install Windows printing-system software for direct connections(USB or parallel) ................................................................................ 43Install Windows printing-system software for networks .................... 43Use Windows-sharing on a network .................................................. 44Install the software after the parallel or USB cable has beenconnected .......................................................................................... 44

Supported printer drivers .................................................................................... 44Remove software for Windows .......................................................................... 45Select the correct printer driver .......................................................................... 45

Universal printer drivers .................................................................... 45Driver Autoconfiguration .................................................................... 45Update Now ....................................................................................... 47

Priority for print settings ..................................................................................... 47Open the printer drivers ..................................................................................... 48

Software for Macintosh ....................................................................................................... 48Software for Macintosh computers .................................................................... 48Install software for Macintosh ............................................................................ 49

Install Macintosh software for direct connections (USB) .................. 49Install Macintosh software for networks ............................................ 50

Remove software from Macintosh operating systems ....................................... 50Software for other operating systems ................................................................................. 50

HP Web Jetadmin .............................................................................................. 50UNIX ................................................................................................................... 51

Network utilities ................................................................................................................... 51HP Web Jetadmin .............................................................................................. 51Embedded Web server ...................................................................................... 52HP Easy Printer Care software .......................................................................... 53Other components and utilities .......................................................................... 53

Network configuration .......................................................................................................................... 54Configure TCP/IPv4 parameters ......................................................................................... 54

Change the IP address ...................................................................................... 54Set the subnet mask .......................................................................................... 55Set the default gateway ...................................................................................... 55

Configure TCP/IPv6 parameters ......................................................................................... 56Disable network protocols (optional) .................................................................................. 56

Disable IPX/SPX ................................................................................................ 56Disable AppleTalk .............................................................................................. 57Disable DLC/LLC ............................................................................................... 57

HP Jetdirect EIO print servers ............................................................................................ 57Security features .................................................................................................................................. 58

Secure the embedded Web server ..................................................................................... 58Foreign Interface Harness (FIH) ......................................................................................... 58

Requirements ..................................................................................................... 58

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Using the FIH ..................................................................................................... 58Enable the FIH portal ........................................................................ 58Disable the FIH portal ........................................................................ 59

Secure Disk Erase .............................................................................................................. 59Data affected ...................................................................................................... 59Gaining access to Secure Disk Erase ................................................................ 60Additional Information ........................................................................................ 60

Job storage features ........................................................................................................... 60DSS authentication ............................................................................................................. 60Locking the control panel menus ........................................................................................ 60Locking the formatter cage ................................................................................................. 61

Optional output and input devices ....................................................................................................... 62

3 Manage and maintainControl-panel menus ........................................................................................................................... 64

Use the control panel .......................................................................................................... 64Control-panel layout ........................................................................................... 64Home screen ...................................................................................................... 65Buttons on the touchscreen ............................................................................... 66Control-panel help system ................................................................................. 66

Navigate the Administration menu ...................................................................................... 66Information menu ................................................................................................................ 67Default Job Options menu .................................................................................................. 68

Default Options for Originals .............................................................................. 69Image adjustment ............................................................................................... 70Default Copy Options ......................................................................................... 71Default Fax Options ........................................................................................... 72Default E-mail Options ....................................................................................... 73Default Send to Folder Options .......................................................................... 74Default Print Options .......................................................................................... 75

Time/Scheduling menu ....................................................................................................... 75Management menu ............................................................................................................. 77Initial Setup menu ............................................................................................................... 78

Networking and I/O ............................................................................................ 79Fax Setup ........................................................................................................... 86E-mail Setup ....................................................................................................... 89Send Setup menu .............................................................................................. 89

Device Behavior menu ........................................................................................................ 89Print Quality menu .............................................................................................................. 94Troubleshooting menu ........................................................................................................ 96Resets menu ..................................................................................................................... 100Service menu .................................................................................................................... 100

Management tools ............................................................................................................................. 102Information pages ............................................................................................................. 102HP Easy Printer Care software ......................................................................................... 102

Supported operating systems .......................................................................... 102Open HP Easy Printer Care software .............................................................. 102HP Easy Printer Care software sections .......................................................... 102

Embedded Web server ..................................................................................................... 104Open the embedded Web server ..................................................................... 104

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Information tab ................................................................................. 105Settings tab ...................................................................................... 105Digital Sending tab .......................................................................... 106Networking tab ................................................................................. 106Other links ....................................................................................... 106

HP Web Jetadmin software .............................................................................................. 107HP Printer Utility for Macintosh ......................................................................................... 107

Open the HP Printer Utility ............................................................................... 107Print a cleaning page ....................................................................................... 108Print a configuration page ................................................................................ 108View supplies status ......................................................................................... 108Order supplies online and use other support features ..................................... 109Upload a file to the printer ................................................................................ 109Update the firmware ......................................................................................... 109Activate the two-sided printing (duplexing) mode ............................................ 109Lock or unlock printer storage devices ............................................................ 110Save or print stored jobs .................................................................................. 110Configure trays ................................................................................................. 110Change network settings ................................................................................. 111Open the embedded Web server ..................................................................... 111Set up e-mail alerts .......................................................................................... 111

Approximate replacement intervals for supplies ............................................................................... 112ETB life under different circumstances .............................................................................................. 113Managing print cartridges .................................................................................................................. 114

HP print cartridges ............................................................................................................ 114Change print cartridges .................................................................................................... 114Non-HP print cartridges .................................................................................................... 114Print cartridge authentication ............................................................................................ 114Print cartridge storage ...................................................................................................... 115Print cartridge life expectancy ........................................................................................... 115Checking the supply level ................................................................................................. 115

Using the product control panel ....................................................................... 115Using the embedded Web server .................................................................... 115Using HP Web Jetadmin .................................................................................. 115

Replacing supplies ............................................................................................................................ 116Locate supplies ................................................................................................................. 116Supply replacement guidelines ......................................................................................... 116Making room around the MFP for replacing supplies ....................................................... 116Replacing the ETB ............................................................................................................ 117Replacing the fuser ........................................................................................................... 117Replacing the stapler cartridge ......................................................................................... 118

Using the cleaning page .................................................................................................................... 120Clean the MFP ................................................................................................................................... 121

Clean the outside of the MFP ........................................................................................... 121Clean the touchscreen ...................................................................................................... 121Clean the scanner glass ................................................................................................... 121Cleaning the ADF delivery system ................................................................................... 122

Clean the ADF delivery system ........................................................................ 122Clean the ADF rollers ....................................................................................... 123

Clean the mylar strip ......................................................................................................... 126

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Performing preventive maintenance .................................................................................................. 128ADF maintenance kit ........................................................................................................ 128

Calibrate the scanner ........................................................................................................................ 129Set the real-time clock ....................................................................................................................... 130

Set the date format ........................................................................................................... 130Set the date ....................................................................................................................... 130Set the time format ............................................................................................................ 130Set the time ....................................................................................................................... 130

4 Theory of operationBasic operation .................................................................................................................................. 134

Operation sequence ......................................................................................................... 135Operation sequence (scanner) ......................................................................................... 135Power on sequence .......................................................................................................... 136

Formatter system ............................................................................................................................... 138Sleep mode ....................................................................................................................... 138Image Resolution Enhancement technology (REt) .......................................................... 139Input/Output ...................................................................................................................... 139

Parallel interface .............................................................................................. 139USB 2.0 connector ........................................................................................... 139ACC accessory port ......................................................................................... 139Flash ................................................................................................................. 140Hard disk .......................................................................................................... 140CPU .................................................................................................................. 140FIH (foreign interface harness) ........................................................................ 140

MFP memory .................................................................................................................... 140Read-only memory ........................................................................................... 140Random-access memory ................................................................................. 140

DIMM slots ........................................................................................................................ 140Flash memory .................................................................................................. 140Nonvolatile memory ......................................................................................... 141

PJL overview ..................................................................................................................... 141PML ................................................................................................................................... 141Control panel ..................................................................................................................... 141Scanner interface .............................................................................................................. 141

Engine control system ....................................................................................................................... 142DC controller PCB ............................................................................................................. 142

Block operation ................................................................................................ 144Motors, fans, and environment sensor ............................................................................. 144Failure detection ............................................................................................................... 147

Drum motor failure detection ............................................................................ 147Fuser motor failure detection ........................................................................... 147ETB motor failure detection ............................................................................. 147Rear exhaust fan failure detection ................................................................... 147Cartridge fan failure detection .......................................................................... 147Delivery fan failure detection ............................................................................ 147Power supply fan failure detection ................................................................... 148Scanner fan failure detection ........................................................................... 148ADF fan failure detection ................................................................................. 148Control fans #1 and #2 failure detection .......................................................... 148

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Sub power supply fan failure detection ............................................................ 148ETB fan failure detection .................................................................................. 148

Low-voltage power supply ................................................................................................ 148Fuser control circuit .......................................................................................... 149Low-voltage power supply circuit ..................................................................... 151

Protective functions ......................................................................... 152Safety .............................................................................................. 152Sleep mode ..................................................................................... 152Power supply recognition ................................................................ 152

Heater temperature control ............................................................................................... 152Initial rotation temperature control ................................................................... 153Start-up temperature control ............................................................................ 153Print temperature control ................................................................................. 154Between-sheets temperature control ............................................................... 154

Temperature protective function ....................................................................................... 154Protective function by the CPU ........................................................................ 154Protective function by the fuser heater safety circuit ....................................... 154Protective function by the thermoswitch .......................................................... 155

Temperature failure detection ........................................................................................... 155Start-up failure (warm-up failure) ..................................................................... 155Abnormal low temperature of main thermistor (no conduction) ....................... 155Abnormal high temperature of main thermistor ............................................... 155Abnormal low temperature of sub thermistor (no conduction) ......................... 155Abnormal high temperature of sub thermistor ................................................. 156Drive circuit abnormality ................................................................................... 156

High-voltage power supply ............................................................................................... 156Generation of biases ........................................................................................ 157

Sub power supply assembly ............................................................................................. 159Video interface control ...................................................................................................... 159

Laser/scanner system ....................................................................................................................... 161Laser control ..................................................................................................................... 162Scanner control ................................................................................................................. 163

Image formation system .................................................................................................................... 165Image formation process .................................................................................................. 166Electrostatic latent image formation block ........................................................................ 168

Step 1: Pre-exposure ....................................................................................... 168Step 2: Primary charging ................................................................................. 169Step 3: Laser beam exposure .......................................................................... 169

Development block ........................................................................................................... 169Step 4: Development ........................................................................................ 169

Transfer block ................................................................................................................... 170Step 5: Attraction .............................................................................................. 170Step 6: Transfer ............................................................................................... 170Step 7: Separation ........................................................................................... 171

Fusing block ...................................................................................................................... 171Step 8: Fusing .................................................................................................. 171

Cleaning block .................................................................................................................. 172Step 9: Drum cleaning ...................................................................................... 172

Print cartridges .................................................................................................................. 172Memory tag ...................................................................................................... 174

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Cartridge presence detection ............................................................................................ 174Memory tag detection ....................................................................................... 174Photosensitive drum detection ......................................................................... 174Developing cylinder disengaging control ......................................................... 175

ETB (electrostatic transfer/transport belt) ......................................................................... 175Transfer roller (Y, C, M) engagement/disengagement detection ..................................... 177Transfer roller engagement/disengagement control ......................................................... 177Calibration and cleaning ................................................................................................... 178

ETB cleaning .................................................................................................... 179Color misregistration corrective control ........................................................... 180

Color misregistration detection ......................................................................................... 181Image stabilization control ................................................................................................ 182

Environmental change control ......................................................................... 183Image density calibration control (DMAX) ....................................................... 184Image halftone calibration control (DHALF) ..................................................... 184Image density detection ................................................................................... 184

Pickup/feed system ........................................................................................................................... 186Pickup/feed unit ................................................................................................................ 191

Cassette detection and cassette media size detection .................................... 191Cassette pickup operation ............................................................................... 192Media lifting operation ...................................................................................... 192

Initial lift ............................................................................................ 193Lift-up during printing ....................................................................... 193

Multiple-feed prevention ................................................................................... 194Skew correction ................................................................................................ 195Media detection ................................................................................................ 196Feed speed control .......................................................................................... 197

Fusing and delivery block ................................................................................................. 198Loop control ..................................................................................................... 199Fusing pressure release mechanism ............................................................... 200

Duplex feed unit ................................................................................................................ 201Duplexing reverse/duplexing feed operation ................................................... 202

Jam detection .................................................................................................................... 204Pickup delay jam .............................................................................................. 205Pickup stationary jam ....................................................................................... 205Delivery delay jam ............................................................................................ 205Door open jam .................................................................................................. 205Residual paper jam .......................................................................................... 205Reversing unit jam 1 ........................................................................................ 206Reversing unit jam 2 ........................................................................................ 206Duplexing pickup unit jam 1 ............................................................................. 206Automatic delivery function .............................................................................. 206

Scanner system ................................................................................................................................. 207Electrical system ............................................................................................................... 207Motors and fans ................................................................................................................ 208Optical assembly ............................................................................................................... 209ADF feed system .............................................................................................................. 210ADF jam detection ............................................................................................................ 211Residual media jam .......................................................................................................... 211ADF pickup jam ................................................................................................................. 211

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ADF jam ............................................................................................................................ 211Registration sensor jam ................................................................................... 212Read sensor jam .............................................................................................. 212Exit sensor jam ................................................................................................. 212

ADF cover-open jam ......................................................................................................... 212ADF open jam ................................................................................................................... 212

2 X 500-sheet paper feeder ............................................................................................................... 213Pickup and feed operations .............................................................................................. 2142 X 500-sheet jam detection ............................................................................................. 216

Output devices ................................................................................................................................... 217IPTU .................................................................................................................................. 217

IPTU transfer operation .................................................................................... 218IPTU jam detection ........................................................................................... 220

Pickup delay jam ............................................................................. 220Pickup stationary jam ...................................................................... 220Delivery delay jam ........................................................................... 220Delivery stationary jam .................................................................... 220

3-bin mailbox system ........................................................................................................ 220Stacker mode ................................................................................................... 222Mailbox mode ................................................................................................... 222Function-separator mode ................................................................................. 222Jam detection ................................................................................................... 222

Feed-delay jam ................................................................................ 223Feed-stationary jam ......................................................................... 223Residual-media jam ......................................................................... 223

Power-on sequence ......................................................................................... 223MBM driver ....................................................................................................... 224MBM switches and sensors ............................................................................. 227MBM PCBs ....................................................................................................... 228MBM list of signals ........................................................................................... 229

Stapler/stacker system ..................................................................................................... 230Power-on sequence ......................................................................................... 231Staple mode ..................................................................................................... 232Jogger operation .............................................................................................. 238Jogger home-position detection ....................................................................... 242Stacker mode ................................................................................................... 244Jam detection ................................................................................................... 244Stapler unit ....................................................................................................... 245

Staple home position detection ....................................................... 245Self-priming detection ...................................................................... 246Staple level detection ...................................................................... 246

Stapler/stacker switches and sensors ............................................................. 247Stapler/stacker motors, solenoid, and fan ....................................................... 249Stapler/stacker PCBs ....................................................................................... 250Stapler/stacker driver PCB ............................................................................... 253Stapler/stacker driver list of signals ................................................................. 255

5 Removal and replacementRemoval and replacement strategy ................................................................................................... 260

Required tools ................................................................................................................... 260

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Before performing service ................................................................................................. 261After completing service ................................................................................................... 261Screws used in the MFP ................................................................................................... 262

Service approach ............................................................................................................................... 263User-replaceable parts ...................................................................................................................... 264

Print cartridges .................................................................................................................. 265Control panel overlays ...................................................................................................... 267Control panel ..................................................................................................................... 267Intermediate paper transfer unit (IPTU) ............................................................................ 269Stapler/stacker .................................................................................................................. 270Staple cartridge ................................................................................................................. 2723-bin mailbox ..................................................................................................................... 274ETB assembly, removing .................................................................................................. 275MP tray pickup assembly .................................................................................................. 278Trays 2, 3, and 4 ............................................................................................................... 278ADF input tray ................................................................................................................... 279ADF pickup and feed rollers ............................................................................................. 281ADF separation pad .......................................................................................................... 283ADF delivery guide (clear mylar sheet) ............................................................................ 285Face-down tray assembly ................................................................................................. 287Fuser ................................................................................................................................. 288Tray 2, 3, or 4 pickup and feed rollers .............................................................................. 289MP tray pickup roller ......................................................................................................... 290Tray 2 separation roller ..................................................................................................... 292Tray 3 or 4 separation rollers ............................................................................................ 294Scanner filter cover and scanner filter .............................................................................. 295ADF hinge flap .................................................................................................................. 296Formatter board ................................................................................................................ 297Hard drive ......................................................................................................................... 299DIMMs ............................................................................................................................... 300Flash memory card (firmware) .......................................................................................... 306Fax accessory ................................................................................................................... 307

Covers, doors, and external panels ................................................................................................... 310Face-down tray assembly ................................................................................................. 312Delivery cover assembly ................................................................................................... 312Rear cover assembly ........................................................................................................ 313Left cover assembly .......................................................................................................... 315Front cover assembly ....................................................................................................... 316Tray 1 ................................................................................................................................ 319Right lower cover assembly .............................................................................................. 322Delivery upper cover assembly ......................................................................................... 325Right front inner lower cover assembly ............................................................................ 326Left rear inner cover assembly ......................................................................................... 326Right front inner upper cover assembly ............................................................................ 327Right rear inner cover assembly ....................................................................................... 329

Main assembly (internal assemblies) ................................................................................................ 332Paper feed assembly ........................................................................................................ 335Pickup drive assembly ...................................................................................................... 339Lifter drive assembly ......................................................................................................... 340Disengaging drive assembly ............................................................................................. 342

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Main drive assembly ......................................................................................................... 344Rail holder assembly ........................................................................................................ 359Rail guide assembly .......................................................................................................... 361Formatter case assembly ................................................................................................. 364Laser/scanner components .............................................................................................. 370Duplexing assembly .......................................................................................................... 377Delivery assembly ............................................................................................................. 379Fuser drive assembly ........................................................................................................ 387

Motors and fans ................................................................................................................................. 388Drum motors ..................................................................................................................... 388Fuser motor ....................................................................................................................... 389Fuser pressure release motor ........................................................................................... 390Developing disengaging motor ......................................................................................... 395Pickup motor assembly ..................................................................................................... 396Power supply fan .............................................................................................................. 397Cartridge fan ..................................................................................................................... 399Sub power supply fan ....................................................................................................... 400Delivery fan ....................................................................................................................... 402Control fan 1 ..................................................................................................................... 403Control fan 2 ..................................................................................................................... 404Rear exhaust fan ............................................................................................................... 405ETB fan ............................................................................................................................. 406

PCBs .................................................................................................................................................. 410DC controller PCB ............................................................................................................. 410Toner level PCB ................................................................................................................ 415High-voltage power supply PCB ....................................................................................... 415Low-voltage power supply PCB ........................................................................................ 421Memory controller PCB ..................................................................................................... 426Sub power supply PCB ..................................................................................................... 427Fan drive PCB ................................................................................................................... 429

Switches, contacts, and sensors ....................................................................................................... 430High-voltage contacts ....................................................................................................... 430E-label memory contacts and cable ................................................................................. 431Power switch assembly .................................................................................................... 432Door-open switch assembly .............................................................................................. 434Environment sensor .......................................................................................................... 435

ADF and scanner components .......................................................................................................... 437ADF assembly ................................................................................................................... 437Top covers ........................................................................................................................ 439Scanner assembly ............................................................................................................ 440Scanner left cover ............................................................................................................. 442Scanner right cover ........................................................................................................... 443Scanner controller PCB .................................................................................................... 445

ADF components ............................................................................................................................... 446ADF output bin extension ................................................................................................. 447ADF white mylar backing .................................................................................................. 448ADF front cover ................................................................................................................. 451ADF rear cover .................................................................................................................. 452ADF left side cover ............................................................................................................ 454ADF jam access cover and latch ...................................................................................... 455

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ADF leading-edge and paper-present sensors ................................................................ 457ADF hinges ....................................................................................................................... 458

2 X 500-sheet paper input assembly components ............................................................................ 460Rear cover ........................................................................................................................ 461Right front cover ................................................................................................................ 462Left front cover .................................................................................................................. 463Right cover ........................................................................................................................ 464Left cover .......................................................................................................................... 466Right lower cover assembly .............................................................................................. 468Pickup motor assembly ..................................................................................................... 469Upper lifter drive assembly ............................................................................................... 470Lower lifter drive assembly ............................................................................................... 471Upper pickup drive assembly ............................................................................................ 473Lower pickup drive assembly ............................................................................................ 473Upper pickup assembly .................................................................................................... 474Lower pickup assembly .................................................................................................... 480Paper feeder door-open switch ......................................................................................... 483Paper feeder driver PCB ................................................................................................... 485

Intermediate paper transfer unit (IPTU) ............................................................................................. 486Front cover and front door ................................................................................................ 486IPTU rear cover ................................................................................................................. 489Connector cover assembly ............................................................................................... 490IPTU driver PCB ............................................................................................................... 491IPTU driver motors ............................................................................................................ 492

Stapler/stacker components .............................................................................................................. 494Delivery tray ...................................................................................................................... 494Front cover ........................................................................................................................ 494Rear cover ........................................................................................................................ 494Left cover .......................................................................................................................... 495Top cover .......................................................................................................................... 495Bottom cover ..................................................................................................................... 496Stapler unit ........................................................................................................................ 497Jogger unit ........................................................................................................................ 498Stapler/stacker driver PCB ............................................................................................... 502

3-bin mailbox components ................................................................................................................. 504Rear cover ........................................................................................................................ 504Front cover ........................................................................................................................ 504Delivery tray ...................................................................................................................... 504Left cover .......................................................................................................................... 505Upper cover ...................................................................................................................... 505Right-door unit .................................................................................................................. 506Bottom cover ..................................................................................................................... 508MBM driver PCB ............................................................................................................... 509

6 Problem solvingProblem-solving process ................................................................................................................... 512

Problem-solving checklist ................................................................................................. 512Problem-solving flowchart ................................................................................................. 514Power-on checks .............................................................................................................. 516

Control-panel messages .................................................................................................................... 517

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Understand accessory lights for the 3-bin mailbox and stapler/stacker ............................................ 550Understand lights on the formatter .................................................................................................... 551

HP Jetdirect LEDs ............................................................................................................. 551Heartbeat LED .................................................................................................................. 551

Replacement parts configuration ....................................................................................................... 552Formatter and DC controller ............................................................................................. 552Formatter (new or previously installed in another MFP) ................................................... 552DC controller (new or previously installed in another MFP) ............................................. 552

Paper path troubleshooting ............................................................................................................... 554Jam locations .................................................................................................................... 554Jam recovery .................................................................................................................... 555Clearing jams in the right covers ...................................................................................... 556Jam in Tray 1 .................................................................................................................... 561Jam in Tray 2, 3, or 4 ........................................................................................................ 561Jam in the stapler/stacker ................................................................................................. 563Staple jams ....................................................................................................................... 564Jam in the 3-bin mailbox ................................................................................................... 566Other jams in the output accessory bridge ....................................................................... 567Jam in the ADF ................................................................................................................. 569Solving repeated jams ...................................................................................................... 571Persistent jams ................................................................................................................. 572

Basic troubleshooting for jams ......................................................................... 572Data collection .................................................................................................. 572General paper path troubleshooting ................................................................ 572Paper path checklist ......................................................................................... 573Jams in Tray 1 .................................................................................................. 573Jams in tray 2 ................................................................................................... 574Jams in Tray 3 .................................................................................................. 575Jams in Tray 4 .................................................................................................. 575Jams in the paper path ..................................................................................... 576Jams in the right upper cover ........................................................................... 577Jams in the duplex path ................................................................................... 578

Jams in the ADF ............................................................................................................... 578Jams in the IPTU .............................................................................................................. 579Jams in the stapler/stacker ............................................................................................... 579Jams in the 3-bin mailbox ................................................................................................. 580Using the paper path test .................................................................................................. 581Using the scanner tests .................................................................................................... 581

Correct print quality and copy quality problems ................................................................................ 582Print quality problems associated with media .................................................................. 582Color printing problems ..................................................................................................... 582

Printout color error ........................................................................................... 582Incorrect shade ................................................................................................ 583Missing color .................................................................................................... 583Cartridge error .................................................................................................. 583Color match error ............................................................................................. 583

Overhead transparency defects ........................................................................................ 584Print quality problems associated with the environment .................................................. 584Print quality problems associated with jams ..................................................................... 584Print quality troubleshooting pages .................................................................................. 585

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Print quality troubleshooting tool ...................................................................................... 585Image defect examples ..................................................................................................... 585

Horizontal lines or streaks ................................................................................ 585Misaligned color ............................................................................................... 587Vertical lines ..................................................................................................... 588Repetitive defects ............................................................................................. 589Color fade in all colors ...................................................................................... 590Color fade in one color ..................................................................................... 591Fingerprints and media dents .......................................................................... 592Loose toner ...................................................................................................... 593Smeared toner ................................................................................................. 594White areas on page ........................................................................................ 595Media damage ................................................................................................. 596Specs or stray toner ......................................................................................... 597Skewed, stretched, or off-center page ............................................................. 598Blank page ....................................................................................................... 599Horizontal lines ................................................................................................. 600Page skew ........................................................................................................ 601Vertical lines ..................................................................................................... 602Image shifted .................................................................................................... 603Unexpected image ........................................................................................... 604

Calibrate the MFP ............................................................................................................. 604Repetitive defect ruler ....................................................................................................... 604

Manage color ..................................................................................................................................... 606Understand color variations .............................................................................................. 606Use color ........................................................................................................................... 606

HP ImageREt 3600 .......................................................................................... 606Paper selection ................................................................................................ 607sRGB ................................................................................................................ 607

Color options ..................................................................................................................... 607Restrict color use ............................................................................................. 607

Restrict color printing ....................................................................... 608Restrict color copying ...................................................................... 608

Print in grayscale .............................................................................................. 608Automatic or manual color adjustment ............................................................ 608Manual color options ........................................................................................ 609Halftone options ............................................................................................... 609Neutral grays .................................................................................................... 609Edge control ..................................................................................................... 609RGB color ......................................................................................................... 610

Adjusting color balance ..................................................................................................... 610Color selection process .................................................................................................... 610Matching colors ................................................................................................................. 610

PANTONE color matching ............................................................................... 610Swatch book color matching ............................................................................ 611

Media transport problems .................................................................................................................. 612Solve e-mail problems ....................................................................................................................... 614

Validate the SMTP gateway address ............................................................................... 614Validate the LDAP gateway address ................................................................................ 614

Solve fax problems ............................................................................................................................ 615

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Network connectivity problems .......................................................................................................... 615Troubleshooting network printing problems ...................................................................... 615Loopback test .................................................................................................................... 616Ping test ............................................................................................................................ 616

Functional checks .............................................................................................................................. 617Engine test ........................................................................................................................ 617Formatter test .................................................................................................................... 617

MFP resets ........................................................................................................................................ 619Cold reset .......................................................................................................................... 619NVRAM initialization ......................................................................................................... 619

Tools for troubleshooting ................................................................................................................... 621Individual component diagnostics ..................................................................................... 622

LED diagnostics ............................................................................................... 622Engine diagnostics ........................................................................................... 623

Diagnostics mode ............................................................................ 623Diagnostics that put the engine into the special diagnosticsmode ................................................................................................ 623Diagnostic tests ............................................................................... 624

Paper path sensor test ..................................................................................... 625Manual sensor test ........................................................................................... 626Scanner tests ................................................................................................... 628Component tests .............................................................................................. 628

Service ID ......................................................................................................................... 631Converting the service ID to an actual date ..................................................... 631

Troubleshooting the embedded HP Jetdirect print server ................................................ 632Firmware-stack trace ........................................................................................................ 632

Diagrams for troubleshooting ............................................................................................................ 633DC controller connections ................................................................................................. 633Scanner controller PCB connections ................................................................................ 636Locations of major components ........................................................................................ 637

Sensors and switches ...................................................................................... 639Sensors and switches ..................................................................... 639

Motors, fans, and solenoids ............................................................................. 641Motors and solenoids ...................................................................... 642Fans ................................................................................................. 644PCBs ............................................................................................... 645

Scanner and ADF components ........................................................................ 646ADF and scanner sensors ............................................................... 646ADF pickup assembly sensors ........................................................ 647ADF motors, fans, and solenoids .................................................... 647

2 X 500-sheet feeder ........................................................................................ 649IPTU ................................................................................................................. 650

General timing chart ......................................................................................................... 651General circuit diagrams ................................................................................................... 652

Upgrade the firmware ........................................................................................................................ 659Determine the current firmware version ........................................................................... 659Download new firmware from the HP Web site ................................................................ 659Transfer the new firmware to the MFP ............................................................................. 659

Use FTP to upload the firmware through a browser ........................................ 659Use FTP to upgrade the firmware on a network connection ........................... 660

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Use HP Web Jetadmin to upgrade the firmware ............................................. 661Use MS-DOS commands to upgrade the firmware ......................................... 661

Use the HP Jetdirect firmware .......................................................................................... 661

7 Parts and diagramsIntroduction ........................................................................................................................................ 664Ordering parts and supplies .............................................................................................................. 665

Parts that wear .................................................................................................................. 665Parts .................................................................................................................................. 665Customer support ............................................................................................................. 665Supplies and accessories ................................................................................................. 665

Assembly locations ............................................................................................................................ 670Major components ............................................................................................................ 670

External covers and panels ............................................................................................................... 674Internal components .......................................................................................................................... 686ADF components ............................................................................................................................... 730Scanner components ......................................................................................................................... 7522 X 500-sheet feeder components .................................................................................................... 756Optional devices ................................................................................................................................ 776

Stapler/stacker .................................................................................................................. 7763-bin mailbox ..................................................................................................................... 778Intermediate paper transfer unit (IPTU) ............................................................................ 780

Alphabetical parts list ......................................................................................................................... 786Numerical parts list ............................................................................................................................ 800

Appendix A Supplies and accessoriesOrder parts, accessories, and supplies ............................................................................................. 816

Order directly from HP ...................................................................................................... 816Order through service or support providers ...................................................................... 816Order directly through the embedded Web server ........................................................... 816

Optional output devices ..................................................................................................................... 817Output accessory bridge ................................................................................................... 8173-bin mailbox ..................................................................................................................... 817Stapler/stacker .................................................................................................................. 818

Part numbers ..................................................................................................................................... 819Accessories ....................................................................................................................... 819Print cartridges .................................................................................................................. 819Maintenance kits ............................................................................................................... 820Customer replaceable units .............................................................................................. 820Memory ............................................................................................................................. 820Cables and interfaces ....................................................................................................... 820

Appendix B MFP specificationsPhysical specifications ....................................................................................................................... 822Electrical specifications ..................................................................................................................... 824Acoustic specifications ...................................................................................................................... 825Environmental specifications ............................................................................................................. 826Image area ......................................................................................................................................... 827Skew specifications ........................................................................................................................... 828

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Appendix C Regulatory informationCompliance with FCC regulations ..................................................................................................... 830Declaration of Conformity .................................................................................................................. 831Environmental product stewardship program .................................................................................... 832

Protecting the environment ............................................................................................... 832Ozone production .............................................................................................................. 832Power consumption .......................................................................................................... 832Toner consumption ........................................................................................................... 832Paper use .......................................................................................................................... 832Plastics .............................................................................................................................. 832HP LaserJet print supplies ................................................................................................ 832Return and recycling instructions ..................................................................................... 833

United States and Puerto Rico ......................................................................... 833Multiple returns (two to eight cartridges) ......................................... 833Single returns .................................................................................. 833Shipping ........................................................................................... 833

Non-US returns ................................................................................................ 833Paper ................................................................................................................................. 833Material restrictions ........................................................................................................... 834Disposal of waste equipment by users in private households in the European Union .... 834Material Safety Data Sheet (MSDS) ................................................................................. 835For more information ........................................................................................................ 835

Certificate of volatility ......................................................................................................................... 836Types of memory .............................................................................................................. 836

Volatile memory ............................................................................................... 836Non-volatile memory ........................................................................................ 836Hard-disk-drive memory ................................................................................... 836

Safety statements .............................................................................................................................. 837Laser safety ...................................................................................................................... 837Canadian DOC regulations ............................................................................................... 837VCCI statement (Japan) ................................................................................................... 837Power cord statement (Japan) .......................................................................................... 837EMI statement (Korea) ...................................................................................................... 837EMI statement (Taiwan) .................................................................................................... 837Toxic and Hazardous Substance Table ............................................................................ 838General telecom statement ............................................................................................... 838Laser statement for Finland .............................................................................................. 839

Index .................................................................................................................................................................. 841

xviii ENWW

6 Problem solving

● Problem-solving process

● Control-panel messages

● Understand accessory lights for the 3-bin mailbox and stapler/stacker

● Understand lights on the formatter

● Replacement parts configuration

● Paper path troubleshooting

● Correct print quality and copy quality problems

● Manage color

● Media transport problems

● Solve e-mail problems

● Solve fax problems

● Network connectivity problems

● Functional checks

● MFP resets

● Tools for troubleshooting

● Diagrams for troubleshooting

● Upgrade the firmware

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Problem-solving processWhen the MFP malfunctions or encounters an unexpected situation, information on the control panelalerts you to the situation. This section contains an initial troubleshooting checklist that helps toeliminate many possible causes of the problem. The subsequent troubleshooting flowchart helps youto diagnose the cause of the problem. The remainder of the chapter provides steps for correcting theproblems that have been identified.

● Use the initial troubleshooting checklist to evaluate the source of the problem and to reduce thenumber of steps that are required to fix the problem.

● Use the troubleshooting flowchart to pinpoint the cause of malfunctions. The flowchart lists thesection within this chapter that provides steps for correcting the malfunction.

Before beginning any troubleshooting procedure, check the following:

● Are supply items (for example, the print cartridge, fuser, and rollers) within their rated life?

● Does the configuration page reveal any configuration problems?

NOTE: The customer is responsible for checking and maintaining supplies, and for usingsupplies that are in good condition. The customer is responsible for media and print-cartridgesupplies. The customer is also responsible for replacing the fuser, transfer roller, and all paperpickup, feed, and separation rollers (tray 1 has a separation pad instead of a roller) that are ator near the end of their 225,000-page rated life.

Problem-solving checklistIf the MFP is not responding correctly, complete the steps in the following checklist, in order. If theMFP does not pass a step, follow the corresponding troubleshooting suggestions. If a step resolvesthe problem, you can stop without performing the other steps on the checklist.

1. Make sure the MFP Ready light is on and the display says Ready. If no lights are on, seePower-on checks on page 516.

2. Check the cabling.

a. Check the cable connection between the MFP and the computer or network port. Makesure that the connection is secure.

b. Make sure that the cable itself is not faulty by using a different cable, if possible.

c. Check the network connection. See Network connectivity problems on page 615.

3. Ensure that the print media that you are using meets specifications. See Media specificationson page 13.

4. Print a configuration page. If the MFP is connected to a network, an HP Jetdirect page alsoprints.

a. If the pages do not print, check that at least one tray contains print media.

b. If the page jams in the MFP, see Paper path troubleshooting on page 554.

512 Chapter 6 Problem solving ENWW

7 Parts and diagrams

This chapter contains information about ordering parts, supplies, and accessories. It includesdiagrams of the major subassemblies of the MFP and includes the part numbers for replaceable parts.

● Introduction

● Ordering parts and supplies

● Assembly locations

● External covers and panels

● Internal components

● ADF components

● Scanner components

● 2 X 500-sheet feeder components

● Optional devices

● Alphabetical parts list

● Numerical parts list

ENWW 663