HP Color LaserJet Enterprise M552, Color LaserJet Enterprise M553, Color LaserJet Enterprise MFP M577 Repair Manual and Troubleshooting Manual

Troubleshooting Manual

Color LaserJet Enterprise M552
Color LaserJet Enterprise M553

www.hp.com/support/colorlj552
www.hp.com/support/colorlj553
www.hp.com/support/colorljM577MFP

For printer part removal and part number
information, see the Repair Manual.

M553xM552dn

M553dn

M553n

M577dn

M577f

M577c

M577z

Color LaserJet Enterprise MFP M577

HP Color LaserJet Enterprise M553, HP Color
LaserJet Enterprise M552, and HP Color
LaserJet Enterprise MFP M577

Troubleshooting Manual

Copyright and License

Trademark Credits

© Copyright 2015 HP Development Company,
L.P.

Reproduction, adaptation, or translation
without prior written permission is prohibited,
except as allowed under the copyright laws.

The information contained herein is subject to
change without notice.

The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed
as constituting an additional warranty. HP shall
not be liable for technical or editorial errors or
omissions contained herein.

Edition 1, 11/2015

Microsoft®, Windows®, Windows® XP, and
Windows Vista® are U.S. registered trademarks
of Microsoft Corporation.

Conventions used in this guide

TIP: Helpful hints or shortcuts.

NOTE: Information that explains a concept or how to complete a task.

Reinstallation tip: Reinstallation helpful hints, shortcuts, or considerations.

IMPORTANT: Information that help the user to avoid potential printer error conditions.

CAUTION: Procedures that the user must follow to avoid losing data or damaging the printer.

WARNING! Procedures that the user must follow to avoid personal injury, catastrophic loss of data, or

extensive damage to the printer.

ENWW iii

iv Conventions used in this guide ENWW

For additional service and support information

HP service personnel, go to the Service Access Work Bench (SAW) at http://h41302.www4.hp.com/km/saw/

home.do.

Channel partners, go to HP Channel Services Network (CNS) at https://h30125.www3.hp.com/hpcsn.

At these locations, nd information on the following topics:

●

Install and congure

●

Printer specications

●

Up-to-date control panel message (CPMD) troubleshooting

●

Solutions for printer issues and emerging issues

●

Remove and replace part instructions and videos

●

Service advisories

●

Warranty and regulatory information

To access HP PartSurfer information from any mobile device, go to http://partsurfermobile.hp.com/ or scan
the Quick Response (QR) code below.

ENWW v

vi For additional service and support information ENWW

Table of contents

1 Theory of operation ....................................................................................................................................... 1

For additional service and support ........................................................................................................................ 2

Basic operation ...................................................................................................................................................... 3

Sequence of operation ........................................................................................................................ 5

Formatter-control system ..................................................................................................................................... 7

Sleep mode .......................................................................................................................................... 7

Printer job language (PJL) ................................................................................................................... 8

Printer management language (PML) ................................................................................................. 8

Control panel ....................................................................................................................................... 8

Easy-access USB port .......................................................................................................................... 9

Wireless ............................................................................................................................................... 9

Near eld communication (NFC) .......................................................................................................... 9

CPU ....................................................................................................................................................... 9

Input/output (I/O) ................................................................................................................................ 9

Memory ................................................................................................................................................ 9

Firmware ......................................................................................................................... 10

Nonvolatile random access memory (NVRAM) ............................................................... 10

Random access memory (RAM) ...................................................................................... 10

HP Memory Enhancement technology (MEt) .................................................................. 10

Engine-control system ........................................................................................................................................ 11

DC controller ...................................................................................................................................... 12

Motors ............................................................................................................................. 13

Fans ................................................................................................................................. 14

Solenoids ......................................................................................................................... 14

Clutches ........................................................................................................................... 14

Switches .......................................................................................................................... 14

Sensors ........................................................................................................................... 16

Low-voltage power supply ................................................................................................................ 18

Low-voltage power supply voltages description ........................................................... 19

Over-current/over-voltage protection ........................................................................... 19

Sleep mode operation ..................................................................................................... 19

Low-voltage power supply failure detection ................................................................. 20

ENWW vii

Low-voltage power supply functions ............................................................................. 20

High-voltage power supply ............................................................................................................... 20

High-voltage power supply circuits ................................................................................ 21

Fuser bias ........................................................................................................................ 22

Fuser control ..................................................................................................................................... 22

Fuser circuits ................................................................................................................... 22

Fuser control functions ................................................................................................... 24

Fuser temperature control ............................................................................................. 24

Fuser heater protection .................................................................................................. 26

Fuser unit life detection .................................................................................................. 26

Fuser identication ......................................................................................................... 26

Engine laser/scanner system .............................................................................................................................. 27

Laser/scanner failure detection ........................................................................................................ 28

Safety ................................................................................................................................................ 28

Image-formation process ................................................................................................................. 29

Step 1: Pre-exposure ...................................................................................................... 35

Step 2: Primary charging ................................................................................................ 35

Step 3: Laser-beam exposure ......................................................................................... 36

Step 4: Development ...................................................................................................... 36

Step 5: Primary transfer ................................................................................................. 37

Step 6: Secondary transfer ............................................................................................. 37

Step 7: Separation ........................................................................................................... 38

Step 8: Fusing .................................................................................................................. 38

Step 9: ITB cleaning ......................................................................................................... 39

Step 10: Drum cleaning ................................................................................................... 39

Toner cartridges ................................................................................................................................ 40

Design ............................................................................................................................. 40

Memory chip .................................................................................................................... 42

Toner seal ........................................................................................................................ 42

Toner level and cartridge life detection .......................................................................... 42

Developing unit engagement and disengagement control ........................................... 42

Cartridge Authentication Technology (CAT) ................................................................... 43

Authentication .............................................................................................. 44

Anti-theft ...................................................................................................... 44

Intermediate transfer belt (ITB) unit ................................................................................................. 45

Primary-transfer roller engagement and disengagement control ................................ 45

ITB unit detection ............................................................................................................ 47

ITB cleaning mechanism ................................................................................................. 48

Secondary transfer roller functions ............................................................................... 48

Calibration ....................................................................................................................... 49

Pickup, feed, and delivery system ....................................................................................................................... 50

viii ENWW

Photo sensors and switches ............................................................................................................. 51

Motors, clutches, and solenoids ........................................................................................................ 53

Tray 1 (multipurpose)/Tray 2 (base printer) ..................................................................................... 54

Tray 1 paper pickup and feed ......................................................................................... 54

Tray 2 paper presence detection .................................................................................... 55

Tray 2 lift operation ........................................................................................................ 55

Tray 2 paper pickup ......................................................................................................... 56

Tray 2 multiple-feed prevention ..................................................................................... 56

Tray 2 presence detection .............................................................................................. 57

Tray 2 skew feed prevention ........................................................................................... 57

Tray 2 media type detection ........................................................................................... 58

Feed speed control .......................................................................................................... 59

Duplexing unit (M552dn, M553dn, M553x, and M577 only) ............................................................ 60

Duplexing reverse and duplex feed control ................................................................... 60

Jam detection/prevention ................................................................................................................. 60

Fuser wrapping jam detection ........................................................................................ 62

Loop control .................................................................................................. 62

Pressure roller pressurization and depressurization control ...................... 63

Input accessories ................................................................................................................................................. 65

Trays 3-5 ........................................................................................................................................... 65

Trays 3-5 driver PCA ....................................................................................................... 65

Trays 3-5 motor control .................................................................................................. 66

Trays 3-5 electrical components .................................................................................... 66

Trays 3-5 paper pickup ................................................................................................... 67

Trays 3-5 multiple feed prevention ................................................................................ 67

Trays 3-5 tray presence detection .................................................................................. 67

Trays 3-5 tray lift operation ........................................................................................... 68

Trays 3-5 jam detection .................................................................................................. 69

Scanning and image capture system (M577) ...................................................................................................... 70

Document feeder system (M577) ........................................................................................................................ 71

Document feed system ..................................................................................................................... 71

Sensors in the document feeder ....................................................................................................... 71

Document feeder paper path ............................................................................................................ 72

Document feeder simplex operation ................................................................................................ 73

Document feeder e-duplex operation .............................................................................................. 74

Deskew operation .............................................................................................................................. 74

Document feeder hinges ................................................................................................................... 75

2 Solve problems ............................................................................................................................................ 77

For additional service and support ..................................................................................................................... 78

Solve problems checklist ..................................................................................................................................... 79

ENWW ix

Solve problems checklist ................................................................................................................... 79

Print the conguration page ............................................................................................................. 84

Print menu map ................................................................................................................................. 84

Print current settings pages ............................................................................................................. 85

Print event log ................................................................................................................................... 86

Pre-boot menu options ..................................................................................................................... 88

Remote Admin ................................................................................................................. 98

Required software and network connection ................................................ 98

Connect a remote connection .................................................................... 100

Disconnect a remote connection ................................................................ 104

Troubleshooting process ................................................................................................................................... 107

Determine the problem source ....................................................................................................... 107

Pre-troubleshooting checklist ...................................................................................... 107

Troubleshooting owchart ........................................................................................... 108

Power subsystem ............................................................................................................................ 109

Power-on checks ........................................................................................................... 109

Power-on troubleshooting overview ......................................................... 109

Control panel checks ....................................................................................................................... 113

Control-panel diagnostics ............................................................................................ 113

Touchscreen diagnostic mode (M553x and M577) .................................... 113

Control-panel system diagnostics (M553x and M577) .............................. 118

Control panel diagnostic owcharts (M553x and M577) ............................................. 133

Touchscreen black, white, or dim (no image) ............................................ 134

Touchscreen is slow to respond or requires multiple presses to

respond ....................................................................................................... 135

Touchscreen has an unresponsive zone .................................................... 136

No control panel sound .............................................................................. 137

Home button is unresponsive .................................................................... 138

Hardware integration pocket (HIP) is not functioning (control panel

functional) .................................................................................................. 139

Tools for troubleshooting .................................................................................................................................. 140

Individual component diagnostics .................................................................................................. 140

Tools for troubleshooting: LED diagnostics ................................................................. 140

Understand lights on the formatter ........................................................... 140

Tools for troubleshooting: Engine diagnostics ............................................................ 143

Engine test button ...................................................................................... 143

Defeating interlocks ................................................................................... 145

Disable cartridge check .............................................................................. 147

Tools for troubleshooting: Paper path and sensor diagnostic tests ........................... 148

Paper path test ........................................................................................... 148

Paper path sensors test ............................................................................. 149

x ENWW

Manual sensor tests ................................................................................... 151

Tray/bin manual sensor test ...................................................................... 153

Tools for troubleshooting: Print/stop test ................................................................... 154

Tools for troubleshooting: Component tests ............................................................... 156

Individual component diagnostics (special-mode test) ............................ 156

Tools for troubleshooting: Scanner tests (M577 only) ................................................ 158

Scanner tests .............................................................................................. 158

Diagrams ......................................................................................................................................... 160

Diagrams: Block diagrams ............................................................................................ 161

Sensors and switches ................................................................................. 161

Cross section diagrams .............................................................................. 163

Diagrams: Printed circuit assembly (PCA) connector locations ................................... 164

DC controller PCA ........................................................................................ 165

Formatter PCA (M552 and M553) ............................................................... 167

Formatter PCA (M577) ................................................................................ 168

1x550-sheet paper feeder PCA .................................................................. 169

Scanner control board PCA ......................................................................... 170

Diagrams: External plug and port locations ................................................................. 171

Diagrams: Locations of major assemblies ................................................................... 172

Main assemblies (printer base) .................................................................. 172

Printed circuit assembly (PCA) locations ................................................... 175

Diagrams: General timing chart ................................................................................... 176

Diagrams: General circuit diagrams ............................................................................. 177

Internal test and information pages ............................................................................................... 180

Print a conguration page ............................................................................................ 180

HP embedded Jetdirect page ..................................................................... 182

Finding important information on the conguration pages ..................... 183

Print a cleaning page .................................................................................................... 184

Enable and congure auto cleaning ........................................................... 184

Control-panel menus ...................................................................................................................... 185

Administration menu .................................................................................................... 185

Reports menu ............................................................................................. 185

General Settings menu ............................................................................... 187

Copy Settings menu (M577 only) ............................................................... 201

Scan/Digital Send Settings menu (M577 only) .......................................... 209

Fax Settings menu (M577 only) ................................................................. 219

General Print Settings menu ...................................................................... 232

Default Print Options menu ....................................................................... 235

Display Settings menu ............................................................................... 237

Manage Supplies menu .............................................................................. 239

Manage Trays menu ................................................................................... 244

ENWW xi

Network Settings menu ............................................................................. 246

Troubleshooting menu ............................................................................... 257

Device Maintenance menu ............................................................................................ 260

Backup/Restore menu ................................................................................ 260

Calibration/Cleaning menu (M577 only) .................................................... 260

USB Firmware Upgrade menu .................................................................... 263

HP FutureSmart Level menu ...................................................................... 263

Service menu .............................................................................................. 263

Control panel message document (CPMD) ..................................................................................... 264

Control-panel message types ...................................................................................... 264

Control-panel messages and event log entries ........................................................... 264

10.XX.YZ Error Messages ........................................................................... 264

11.XX.YZ Error Messages ........................................................................... 273

13.XX.YZ Error Messages ........................................................................... 273

20.XX.YZ Error Messages ........................................................................... 294

30.XX.YZ Error Messages ........................................................................... 295

31.XX.YZ Error Messages ........................................................................... 302

32.XX.YX and 33.XX.YZ Error Messages .................................................... 309

40.XX.YZ Error Messages ........................................................................... 317

41.XX.YZ Error Messages ........................................................................... 318

42.XX.YZ Error Messages ........................................................................... 326

44.XX.XX Error Messages ........................................................................... 326

47.XX.XX Error Messages ........................................................................... 328

48.XX.YY Error Messages ........................................................................... 331

49.XX.YY Error Messages ........................................................................... 331

50.WX.YZ Error Messages .......................................................................... 332

51.XX.YZ, 52.XX.YZ Error Messages .......................................................... 338

54.XX.YZ Error Messages ........................................................................... 338

55.XX.YZ, 56.XX.YZ Error Messages .......................................................... 340

57.XX.YZ Error Messages ........................................................................... 342

58.XX.YZ Error Messages ........................................................................... 343

59.XX.YZ Error Messages ........................................................................... 345

60.00.0Y, 62.00.00 Error Messages ........................................................... 348

70.XX.YY Error Messages ........................................................................... 348

80.WX.YZ, 81.WX.YZ, 82.WX.YZ Error Messages ....................................... 349

90.XX.YY error messages ........................................................................... 350

98.0X.0Y Error Messages ........................................................................... 351

99.XX.YY Error Messages ........................................................................... 352

Alpha Error Messages ................................................................................. 359

Tools for troubleshooting: Event log messages .......................................................... 389

Print or view an event log ........................................................................... 390

xii ENWW

Clear the event log ..................................................................................... 391

Solve image-quality problems .......................................................................................................................... 392

Improve print quality ...................................................................................................................... 392

Color band test .............................................................................................................. 392

Repetitive image defect ruler ....................................................................................... 393

Use a ruler to measure between repetitive defects .................................. 394

Print-quality troubleshooting pages ............................................................................ 397

Print-quality assessment page .................................................................................... 401

Print from a dierent software program ..................................................................... 402

Check the paper-type setting for the print job ............................................................ 403

Check toner-cartridge status ....................................................................................... 403

Clean the printer ........................................................................................................... 404

Print a cleaning page .................................................................................. 404

Visually inspect the toner cartridge or cartridges ....................................................... 404

Check paper and the printing environment ................................................................. 405

Calibrate the printer ...................................................................................................... 405

Use manual print modes ............................................................................................... 406

Image defects table ...................................................................................................... 409

Clean the printer ................................................................................................................................................ 417

Clean the paper path ....................................................................................................................... 417

Print a cleaning page ....................................................................................................................... 417

Clean the Tray 1 rollers ................................................................................................................... 418

Step 1: Remove the Tray 1 pickup roller ....................................................................... 418

Step 2: Remove the Tray 1 separation roller ................................................................ 420

Step 3: Clean the Tray 1 rollers ..................................................................................... 422

Step 4: Install the Tray 1 separation roller ................................................................... 423

Step 5: Install the Tray 1 pickup roller .......................................................................... 426

Clean the Tray 2-X rollers ................................................................................................................ 429

Step 1: Remove the Tray 2-X paper pickup roller assembly ........................................ 429

Step 2: Remove the Tray 2-X separation roller ............................................................ 432

Step 3: Clean the Tray 2-X rollers ................................................................................. 434

Step 4: Install the Tray 2-X separation roller ............................................................... 434

Step 5: Install the Tray 2-X paper pickup roller assembly ........................................... 436

Check the scanner glass for dirt and smudges (M577 only) .......................................................... 439

Clean the pickup rollers and separation pad in the document feeder (M577 only) ....................... 442

Solve paper handling problems ........................................................................................................................ 444

Printer feeds incorrect page size .................................................................................................... 444

Printer pulls from incorrect tray ..................................................................................................... 444

Printer will not duplex or duplexes incorrectly ............................................................................... 444

Paper does not feed from Tray 2-X ................................................................................................. 445

Output is curled or wrinkled ............................................................................................................ 445

ENWW xiii

Printer does not pick up paper or misfeeds .................................................................................... 446

The printer does not pick up paper .............................................................................. 446

The printer picks up multiple sheets of paper ............................................................. 447

Paper does not feed automatically .............................................................................. 447

Clear paper jams .............................................................................................................................. 447

Paper path jam sensor locations .................................................................................. 448

Auto-navigation for clearing jams ................................................................................ 449

Experiencing frequent or recurring paper jams? ......................................................... 449

Clear paper jams in the document feeder .................................................................... 451

Clear paper jams in Tray 1 ............................................................................................ 454

Clear paper jams in Tray 2 ............................................................................................ 456

Clear paper jams in the optional 550-sheet trays ....................................................... 460

Clear paper jams in the right door and the fuser area ................................................. 465

Clear paper jams in the output bin ............................................................................... 470

Change jam recovery .................................................................................................... 471

Solve performance problems ............................................................................................................................ 472

Factors aecting print performance ............................................................................................... 472

Print speeds ..................................................................................................................................... 473

The printer does not print or it prints slowly .................................................................................. 473

The printer prints slowly ................................................................................................................. 474

Solve connectivity problems ............................................................................................................................. 475

Solve USB connection problems ..................................................................................................... 475

Solve wired network problems ....................................................................................................... 475

Poor physical connection .............................................................................................. 475

The computer is using the incorrect IP address for the product .................................. 475

The computer is unable to communicate with the product ......................................... 476

The product is using incorrect link and duplex settings for the network .................... 476

New software programs might be causing compatibility problems ........................... 476

The computer or workstation might be set up incorrectly .......................................... 476

The product is disabled, or other network settings are incorrect ............................... 476

Service mode functions ..................................................................................................................................... 477

Service menu ................................................................................................................................... 477

Printer resets ................................................................................................................................... 479

Restore factory-set defaults ........................................................................................ 479

Restore the service ID ................................................................................................... 479

Printer cold reset .......................................................................................................... 480

Format Disk and Partial Clean functions ........................................................................................ 482

Active and repository rmware locations .................................................................... 482

Partial Clean .................................................................................................................. 482

Execute a Partial Clean ............................................................................... 483

Format Disk ................................................................................................................... 483

xiv ENWW

Execute a Format Disk ................................................................................ 484

Firmware upgrades ............................................................................................................................................ 486

Determine the installed revision of rmware ................................................................................. 487

Perform a rmware upgrade .......................................................................................................... 488

HP Embedded Web Server ............................................................................................ 488

USB ash drive (Pre-boot menu) .................................................................................. 489

USB ash drive (control-panel menu) .......................................................................... 491

Solve email problems ........................................................................................................................................ 492

Cannot connect to the email server ................................................................................................ 492

Validate the SMTP gateway (Windows) .......................................................................................... 492

Validate the LDAP gateway (Windows) ........................................................................................... 492

Appendix A Printer specications .................................................................................................................. 493

Printer dimensions ............................................................................................................................................ 494

Printer space requirements ............................................................................................................................... 499

Power consumption, electrical specications, and acoustic emissions ........................................................... 499

Operating-environment range .......................................................................................................................... 499

Certicates of Volatility ..................................................................................................................................... 500

Index ........................................................................................................................................................... 505

ENWW xv

xvi ENWW

List of tables

Table 1-1 Sequence of operation .......................................................................................................................................... 5

Table 1-2 Motors ................................................................................................................................................................. 13

Table 1-3 Fans ..................................................................................................................................................................... 14

Table 1-4 Solenoids ............................................................................................................................................................ 14

Table 1-5 Clutches .............................................................................................................................................................. 14

Table 1-6 Switches .............................................................................................................................................................. 14

Table 1-7 Sensors ............................................................................................................................................................... 16

Table 1-8 Converted DC voltages ....................................................................................................................................... 19

Table 1-9 Low-voltage power supply functions ................................................................................................................. 20

Table 1-10 High-voltage power supply circuits ................................................................................................................. 21

Table 1-11 Fuser components ............................................................................................................................................ 23

Table 1-12 Low-voltage power supply functions ............................................................................................................... 24

Table 1-13 Motors ............................................................................................................................................................... 31

Table 1-14 Sensors ............................................................................................................................................................. 32

Table 1-15 Image formation process ................................................................................................................................. 33

Table 1-16 Primary-transfer roller engagement states .................................................................................................... 45

Table 1-17 Secondary transfer roller functions ................................................................................................................. 48

Table 1-18 Calibration functions ........................................................................................................................................ 49

Table 1-19 Photo sensors and switches ............................................................................................................................. 51

Table 1-20 Motors, clutches, and solenoids ....................................................................................................................... 53

Table 1-21 Print mode and feed speed .............................................................................................................................. 59

Table 1-22 Jams that the printer detects ........................................................................................................................... 61

Table 1-23 Trays 3-5 motor control ................................................................................................................................... 66

Table 1-24 Tray 3-5 electrical components ....................................................................................................................... 66

Table 1-25 Pickup feed components (1x550-sheet paper feeder) .................................................................................... 67

Table 1-26 Document feeder sensors ................................................................................................................................ 72

Table 1-27 Document feeder paper path ........................................................................................................................... 72

Table 2-1 Pre-boot menu options (1 of 7) .......................................................................................................................... 91

Table 2-2 Pre-boot menu options (2 of 7) .......................................................................................................................... 92

Table 2-3 Pre-boot menu options (3 of 7) .......................................................................................................................... 93

Table 2-4 Pre-boot menu options (4 of 7) .......................................................................................................................... 94

Table 2-5 Pre-boot menu options (5 of 7) .......................................................................................................................... 94

ENWW xvii

Table 2-6 Pre-boot menu options (6 of 7) .......................................................................................................................... 95

Table 2-7 Pre-boot menu options (7 of 7) .......................................................................................................................... 96

Table 2-8 Troubleshooting owchart ............................................................................................................................... 108

Table 2-9 Heartbeat LED, product initialization ............................................................................................................... 141

Table 2-10 Heartbeat LED, product operational .............................................................................................................. 142

Table 2-11 Paper-path sensors diagnostic tests ............................................................................................................. 149

Table 2-12 Manual sensor diagnostic tests ..................................................................................................................... 152

Table 2-13 Tray/bin manual sensors ................................................................................................................................ 154

Table 2-14 Component test details .................................................................................................................................. 157

Table 2-15 Printer base, sensors and switches block diagram ....................................................................................... 161

Table 2-16 1x550-sheet paper feeder, sensors and switches block diagram ................................................................ 162

Table 2-17 Document feeder, sensors block diagram ..................................................................................................... 162

Table 2-18 Printer base cross section diagram ................................................................................................................ 163

Table 2-19 1x550-sheet paper feeder cross section diagram ........................................................................................ 164

Table 2-20 DC controller PCA ............................................................................................................................................ 165

Table 2-21 Formatter PCA ................................................................................................................................................ 167

Table 2-22 Formatter PCA ................................................................................................................................................ 168

Table 2-23 1x550-sheet paper feeder PCA ...................................................................................................................... 169

Table 2-24 Scan control board PCA .................................................................................................................................. 170

Table 2-25 External plug and port locations .................................................................................................................... 171

Table 2-26 Main assemblies, printer base (1 of 2) ........................................................................................................... 172

Table 2-27 Main assemblies, printer base (2 of 2) ........................................................................................................... 173

Table 2-28 PCA locations (printer base) ........................................................................................................................... 175

Table 2-29 Conguration page ......................................................................................................................................... 181

Table 2-30 HP embedded Jetdirect page ......................................................................................................................... 182

Table 2-31 Important information on the conguration pages ...................................................................................... 183

Table 2-32 Reports menu ................................................................................................................................................. 185

Table 2-33 General Settings menu ................................................................................................................................... 187

Table 2-34 Copy Settings menu (M577 only) ................................................................................................................... 201

Table 2-35 Scan/Digital Send Settings menu (M577 only) .............................................................................................. 209

Table 2-36 Fax Settings menu (M577 only) ..................................................................................................................... 219

Table 2-37 General Print Settings menu .......................................................................................................................... 232

Table 2-38 Default Print Options menu ........................................................................................................................... 235

Table 2-39 Display Settings menu ................................................................................................................................... 237

Table 2-40 Manage Supplies menu .................................................................................................................................. 239

Table 2-41 Manage Trays menu ....................................................................................................................................... 244

Table 2-42 Network Settings menu ................................................................................................................................. 246

Table 2-43 Wireless Menu ................................................................................................................................................ 246

Table 2-44 Embedded Jetdirect Menu .............................................................................................................................. 246

Table 2-45 Troubleshooting menu ................................................................................................................................... 257

Table 2-46 Backup/Restore menu .................................................................................................................................... 260

xviii ENWW

Table 2-47 Calibration/Cleaning menu (M577) ................................................................................................................ 260

Table 2-48 Call out Cable identication ........................................................................................................................... 295

Table 2-49 Call out Cable identication ........................................................................................................................... 302

Table 2-50 Sample event log page ................................................................................................................................... 389

Table 2-51 Repetitive defects .......................................................................................................................................... 393

Table 2-52 Print modes under the Adjust Paper Types submenu ................................................................................... 407

Table 2-53 Print modes under the Optimize submenu .................................................................................................... 407

Table 2-54 Image defects table ........................................................................................................................................ 409

Table 2-55 Printer feeds incorrect page size ................................................................................................................... 444

Table 2-56 Printer pulls from incorrect tray .................................................................................................................... 444

Table 2-57 Printer will not duplex (print 2-sided jobs) or duplexes incorrectly .............................................................. 444

Table 2-58 Paper does not feed from Tray 2-X ................................................................................................................ 445

Table 2-59 Output is curled or wrinkled ........................................................................................................................... 445

Table 2-60 Paper does not feed automatically ................................................................................................................ 447

Table 2-61 Printer base jam sensors ................................................................................................................................ 448

Table 2-62 1x550-sheet paper-feeder jam sensors ........................................................................................................ 449

Table 2-63 Document feeder, sensors block diagram ..................................................................................................... 449

Table 2-64 Solve performance problems ......................................................................................................................... 472

Table A-1 Operating-environment specications ............................................................................................................ 499

ENWW xix

xx ENWW

List of gures

Figure 1-1 Relationship between the main printer systems ............................................................................................... 3

Figure 1-2 System block diagram ......................................................................................................................................... 4

Figure 1-3 Engine-control system ...................................................................................................................................... 11

Figure 1-4 DC controller block diagram .............................................................................................................................. 12

Figure 1-5 Low-voltage power-supply circuit .................................................................................................................... 18

Figure 1-6 High-voltage power supply circuits .................................................................................................................. 21

Figure 1-7 Fuser components ............................................................................................................................................ 23

Figure 1-8 Fuser temperature-control circuit .................................................................................................................... 25

Figure 1-9 Laser/scanner system ....................................................................................................................................... 27

Figure 1-10 Image-formation system ................................................................................................................................ 30

Figure 1-11 Motors ............................................................................................................................................................. 31

Figure 1-12 Sensors ............................................................................................................................................................ 32

Figure 1-13 Image-formation process ............................................................................................................................... 33

Figure 1-14 Pre-exposure .................................................................................................................................................. 35

Figure 1-15 Primary charging ............................................................................................................................................. 35

Figure 1-16 Laser-beam exposure ..................................................................................................................................... 36

Figure 1-17 Development ................................................................................................................................................... 36

Figure 1-18 Primary transfer .............................................................................................................................................. 37

Figure 1-19 Secondary transfer ......................................................................................................................................... 37

Figure 1-20 Separation ....................................................................................................................................................... 38

Figure 1-21 Fusing .............................................................................................................................................................. 38

Figure 1-22 ITB cleaning ..................................................................................................................................................... 39

Figure 1-23 Drum cleaning ................................................................................................................................................. 39

Figure 1-24 Toner cartridge system ................................................................................................................................... 41

Figure 1-25 Developer roller engagement and disengagement control ........................................................................... 43

Figure 1-26 ITB unit ............................................................................................................................................................ 45

Figure 1-27 Three states of primary-transfer roller engagement and disengagement ................................................... 46

Figure 1-28 ITB cleaning process ....................................................................................................................................... 48

Figure 1-29 Pickup, feed, and delivery system .................................................................................................................. 50

Figure 1-30 Photo sensors and switches ........................................................................................................................... 51

Figure 1-31 Motors, clutches, and solenoids ..................................................................................................................... 53

Figure 1-32 Tray 1 pickup mechanism ............................................................................................................................... 55

ENWW xxi

Figure 1-33 Tray 2 multiple-feed prevention ..................................................................................................................... 57

Figure 1-34 Skew-feed prevention ..................................................................................................................................... 58

Figure 1-35 Media sensors ................................................................................................................................................. 59

Figure 1-36 Jam detection sensors .................................................................................................................................... 61

Figure 1-37 Loop control mechanism ................................................................................................................................ 63

Figure 1-38 Pressure roller pressurization control ............................................................................................................ 63

Figure 1-39 550-sheet paper feeder .................................................................................................................................. 65

Figure 1-40 Tray 3-5 driver PCA ......................................................................................................................................... 66

Figure 1-41 Paper pickup and feed operation (550-sheet paper feeder) ......................................................................... 67

Figure 1-42 Jam detection (1x550-sheet paper feeder) ................................................................................................... 69

Figure 1-43 Document feeder sensors .............................................................................................................................. 72

Figure 1-44 Document feeder paper path ......................................................................................................................... 72

Figure 1-45 Deskew operation ........................................................................................................................................... 75

Figure 1-46 Document feeder open (book mode) .............................................................................................................. 76

Figure 1-47 Document feeder open (60º to 80º) ............................................................................................................... 76

Figure 2-1 Open the Pre-boot menu .................................................................................................................................. 88

Figure 2-2 Pre-boot menu .................................................................................................................................................. 89

Figure 2-3 Open the Pre-boot menu .................................................................................................................................. 90

Figure 2-4 Open the Control Panel ..................................................................................................................................... 99

Figure 2-5 Turn Windows features on or o ...................................................................................................................... 99

Figure 2-6 Enable the telnet client feature ...................................................................................................................... 100

Figure 2-7 Select the +3:Administrator item ................................................................................................................... 101

Figure 2-8 Select the +A:Remote Admin item .................................................................................................................. 101

Figure 2-9 Select the 1:Start Telnet item ......................................................................................................................... 101

Figure 2-10 Telnet connecting message .......................................................................................................................... 101

Figure 2-11 Telnet error message .................................................................................................................................... 102

Figure 2-12 Telnet server function initialized .................................................................................................................. 102

Figure 2-13 Open a command window ............................................................................................................................ 103

Figure 2-14 Start a telnet session .................................................................................................................................... 103

Figure 2-15 Establish a telnet connection ....................................................................................................................... 103

Figure 2-16 Enter the PIN ................................................................................................................................................. 104

Figure 2-17 Remote Admin window ................................................................................................................................. 104

Figure 2-18 Access the administrator menu .................................................................................................................... 105

Figure 2-19 Access the remote admin menu ................................................................................................................... 105

Figure 2-20 Terminate the telnet connection .................................................................................................................. 106

Figure 2-21 Diagnostic-tests access button .................................................................................................................... 113

Figure 2-22 Press the diagnostics-access button ............................................................................................................ 114

Figure 2-23 Diagnostic-tests access button .................................................................................................................... 114

Figure 2-24 Press the diagnostics-access button ............................................................................................................ 115

Figure 2-25 Control-panel version A yellow screen ......................................................................................................... 115

Figure 2-26 Exit the diagnostic mode .............................................................................................................................. 117

xxii ENWW

Figure 2-27 Open the Pre-boot menu .............................................................................................................................. 118

Figure 2-28 Pre-boot menu .............................................................................................................................................. 119

Figure 2-29 Access the administration menu .................................................................................................................. 120

Figure 2-30 Access the diagnostics menu ........................................................................................................................ 120

Figure 2-31 Open the screen test ..................................................................................................................................... 121

Figure 2-32 Blue vertical gradient screen ........................................................................................................................ 121

Figure 2-33 Open the touch test ...................................................................................................................................... 125

Figure 2-34 Touch the white grid ..................................................................................................................................... 125

Figure 2-35 Verify the mark ............................................................................................................................................. 126

Figure 2-36 Open the softkey test ................................................................................................................................... 127

Figure 2-37 Touch the Home button ................................................................................................................................ 127

Figure 2-38 Successful test .............................................................................................................................................. 128

Figure 2-39 Open the backlight test ................................................................................................................................. 129

Figure 2-40 Open the sound test ...................................................................................................................................... 130

Figure 2-41 Open the sound test ...................................................................................................................................... 131

Figure 2-42 Open the sound test ...................................................................................................................................... 132

Figure 2-43 Touchscreen blank, white, or dim (no image) .............................................................................................. 134

Figure 2-44 Touchscreen is slow to respond or requires multiple presses to respond ................................................... 135

Figure 2-45 Touchscreen has an unresponsive zone ....................................................................................................... 136

Figure 2-46 No control panel sound ................................................................................................................................. 137

Figure 2-47 Home button is unresponsive ....................................................................................................................... 138

Figure 2-48 Hardware integration pocket (HIP) is not functioning (control panel functional) ....................................... 139

Figure 2-49 Engine test button ........................................................................................................................................ 144

Figure 2-50 Defeating interlocks (front door) .................................................................................................................. 145

Figure 2-51 Defeating interlocks (right door; right side) ................................................................................................. 146

Figure 2-52 Defeating interlocks (right door; left side) ................................................................................................... 146

Figure 2-53 Printer base, sensors and switches block diagram ...................................................................................... 161

Figure 2-54 1x550-sheet paper feeder, sensors and switches block diagram ............................................................... 162

Figure 2-55 Document feeder, sensors block diagram .................................................................................................... 162

Figure 2-56 Printer base cross section diagram .............................................................................................................. 163

Figure 2-57 1x550-sheet paper feeder cross section diagram ....................................................................................... 164

Figure 2-58 DC controller PCA .......................................................................................................................................... 165

Figure 2-59 Formatter PCA ............................................................................................................................................... 167

Figure 2-60 Formatter PCA ............................................................................................................................................... 168

Figure 2-61 1x550-sheet paper feeder PCA .................................................................................................................... 169

Figure 2-62 Scan control board PCA ................................................................................................................................. 170

Figure 2-63 External plug and port locations .................................................................................................................. 171

Figure 2-64 Main assemblies, printer base (1 of 2) ......................................................................................................... 172

Figure 2-65 Main assemblies, printer base (2 of 2) ......................................................................................................... 173

Figure 2-66 PCA locations (printer base) ......................................................................................................................... 175

Figure 2-67 General timing chart ..................................................................................................................................... 176

ENWW xxiii

Figure 2-68 General circuit diagram (printer base) (1 of 2) ............................................................................................. 177

Figure 2-69 General circuit diagram (printer base) (2 of 2) ............................................................................................. 178

Figure 2-70 General circuit diagram 1x550-sheet paper feeder ..................................................................................... 179

Figure 2-71 Conguration page ....................................................................................................................................... 181

Figure 2-72 Conguration page ....................................................................................................................................... 182

Figure 2-73 Paper Tray guides ......................................................................................................................................... 275

Figure 2-74 Paper height guides ...................................................................................................................................... 275

Figure 2-75 Paper Tray guides ......................................................................................................................................... 277

Figure 2-76 Paper height guides ...................................................................................................................................... 277

Figure 2-77 Paper Tray guides ......................................................................................................................................... 279

Figure 2-78 Paper height guides ...................................................................................................................................... 279

Figure 2-79 Tray 1 Paper guides ...................................................................................................................................... 283

Figure 2-80 Tray 1 Paper height guides ........................................................................................................................... 283

Figure 2-81 Tray 2 Paper guides ...................................................................................................................................... 284

Figure 2-82 Tray 2 Paper height guides ........................................................................................................................... 284

Figure 2-83 Paper Tray guides ......................................................................................................................................... 287

Figure 2-84 Paper height guides ...................................................................................................................................... 287

Figure 2-85 500 Sheet paper tray door ............................................................................................................................ 364

Figure 2-86 Sample event log .......................................................................................................................................... 389

Figure 2-87 Examples of repetitive defects ..................................................................................................................... 394

Figure 2-88 Place the ruler on the page ........................................................................................................................... 395

Figure 2-89 Locate the next repetitive defect ................................................................................................................. 395

Figure 2-90 Determine the defective assembly ............................................................................................................... 396

Figure 2-91 Print-quality troubleshooting procedure ..................................................................................................... 398

Figure 2-92 Yellow print-quality troubleshooting page .................................................................................................. 398

Figure 2-93 Yellow comparison page ............................................................................................................................... 399

Figure 2-94 Black print-quality troubleshooting page .................................................................................................... 400

Figure 2-95 Open Tray 1 ................................................................................................................................................... 418

Figure 2-96 Open the roller cover .................................................................................................................................... 418

Figure 2-97 Remove the cover ......................................................................................................................................... 419

Figure 2-98 Release two tabs ........................................................................................................................................... 419

Figure 2-99 Remove the roller ......................................................................................................................................... 420

Figure 2-100 Release the tray retainers .......................................................................................................................... 420

Figure 2-101 Raise Tray 1 up ............................................................................................................................................ 421

Figure 2-102 Open the roller cover .................................................................................................................................. 421

Figure 2-103 Release one tab .......................................................................................................................................... 422

Figure 2-104 Remove the roller ....................................................................................................................................... 422

Figure 2-105 Clean the rollers .......................................................................................................................................... 423

Figure 2-106 Locate the keyed end of the roller and the holder ..................................................................................... 423

Figure 2-107 Install the roller .......................................................................................................................................... 424

Figure 2-108 Rotate the end of the roller into the holder ............................................................................................... 424

xxiv ENWW

Figure 2-109 Close the roller cover .................................................................................................................................. 425

Figure 2-110 Lower Tray 1 down ...................................................................................................................................... 425

Figure 2-111 Reconnect the tray retainers ...................................................................................................................... 426

Figure 2-112 Install the roller .......................................................................................................................................... 426

Figure 2-113 Reconnect two tabs .................................................................................................................................... 427

Figure 2-114 Install the roller cover ................................................................................................................................. 427

Figure 2-115 Close the roller cover .................................................................................................................................. 428

Figure 2-116 Close Tray 1 ................................................................................................................................................. 428

Figure 2-117 Pull the tray out .......................................................................................................................................... 429

Figure 2-118 Remove the tray ......................................................................................................................................... 429

Figure 2-119 Open the right door .................................................................................................................................... 430

Figure 2-120 Raise the transfer roller assembly ............................................................................................................. 430

Figure 2-121 Lower the paper guide ................................................................................................................................ 431

Figure 2-122 Locate the tray pickup roller ....................................................................................................................... 431

Figure 2-123 Slide the assembly to the left ..................................................................................................................... 432

Figure 2-124 Remove the roller assembly ....................................................................................................................... 432

Figure 2-125 Locate the roller assembly ......................................................................................................................... 433

Figure 2-126 Push up on the blue label ........................................................................................................................... 433

Figure 2-127 Remove the roller assembly ....................................................................................................................... 434

Figure 2-128 Clean the rollers .......................................................................................................................................... 434

Figure 2-129 Install the roller assembly .......................................................................................................................... 435

Figure 2-130 Fully seat the roller assembly .................................................................................................................... 435

Figure 2-131 Check the installation ................................................................................................................................. 436

Figure 2-132 Note of the mounting tab ........................................................................................................................... 436

Figure 2-133 Position the roller assembly in the printer ................................................................................................. 437

Figure 2-134 Release the spring loaded shaft ................................................................................................................. 437

Figure 2-135 Verify the roller installation ....................................................................................................................... 438

Figure 2-136 Install the tray ............................................................................................................................................. 438

Figure 2-137 Close the tray .............................................................................................................................................. 439

Figure 2-138 Printer base jam sensors ............................................................................................................................ 448

Figure 2-139 1x550-sheet paper-feeder jam sensors .................................................................................................... 449

Figure 2-140 Document feeder jam sensors ................................................................................................................... 449

Figure 2-141 Open the Pre-boot menu ............................................................................................................................ 480

Figure 2-142 Open the Pre-boot menu ............................................................................................................................ 483

Figure 2-143 Open the Pre-boot menu ............................................................................................................................ 484

Figure 2-144 Open the Pre-boot menu ............................................................................................................................ 489

Figure A-1 Dimensions for the M552dn and M553n/dn models ...................................................................................... 494

Figure A-2 Dimensions for the M553x model .................................................................................................................. 494

Figure A-3 Dimensions for the M577 models .................................................................................................................. 495

Figure A-4 Dimensions for the 1 x 550-sheet paper feeder ............................................................................................ 495

Figure A-5 Dimensions for the cabinet/stand .................................................................................................................. 496

ENWW xxv

Figure A-6 Dimensions for the M552 and M553 models with one 1 x550-sheet tray and the cabinet/stand ............... 497

Figure A-7 Dimensions for the M577 models with three 1 x 550-sheet paper feeders and the cabinet/stand ............. 498

Figure A-8 Certicate of Volatility (M522/M553; 1 of 2) .................................................................................................. 500

Figure A-9 Certicate of Volatility (M522/M553; 2 of 2) .................................................................................................. 501

Figure A-10 Certicate of Volatility (M577; 1 of 2) .......................................................................................................... 502

Figure A-11 Certicate of Volatility (M577; 2 of 2) .......................................................................................................... 503

xxvi ENWW

1 Theory of operation

●

For additional service and support

●

Basic operation

●

Formatter-control system

●

Engine-control system

●

Engine laser/scanner system

●

Pickup, feed, and delivery system

●

Input accessories

●

Scanning and image capture system (M577)

●

Document feeder system (M577)

ENWW 1

For additional service and support

HP service personnel, go to the Service Access Work Bench (SAW) at http://h41302.www4.hp.com/km/saw/

home.do.

Channel partners, go to HP Channel Services Network (CSN) at https://h30125.www3.hp.com/hpcsn.

At these locations, nd information on the following topics:

●

Install and congure

●

Printer specications

●

Up-to-date control-panel message (CPMD) troubleshooting

●

Solutions for printer issues and emerging issues

●

Remove and replace part instructions and videos

●

Service advisories

●

Warranty & regulatory information

To access HP PartSurfer information from any mobile device, go to http://partsurfermobile.hp.com/ or scan
the Quick Response (QR) code below.

2 Chapter 1 Theory of operation ENWW