HP Color Laserjet M575 repair manual

LASERJET ENTERPRISE 500 COLOR MFP
LASERJET ENTERPRISE FLOW MFP M575

Repair Manual

M575

M575c

HP LaserJet Enterprise 500 color MFP
M575 Printers
HP LaserJet Enterprise 500 color flow
MFP M575 Printers

Repair Manual

Copyright and License

© 2012 Copyright Hewlett-Packard
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.

Part number: CD644-90966

Edition 2, 11/2012

Trademark Credits

®

, Adobe Photoshop®, Acrobat®, and

Adobe
PostScript

®

are trademarks of Adobe

Systems Incorporated.

Apple and the Apple logo are trademarks of
Apple Computer, Inc., registered in the U.S.
and other countries. iPod is a trademark of
Apple Computer, Inc. iPod is for legal or
rightholder-authorized copying only. Don't
steal music.

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

PANTONE® is Pantone, Inc's check­standard trademark for color.

®

is a registered trademark of The

UNIX
Open Group.

ENERGY STAR and the ENERGY STAR mark
are registered U.S. marks.

Conventions used in this guide

TIP: Tips provide helpful hints or shortcuts.

NOTE: Notes provide important information to explain a concept or to complete a task.

CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging

the product.

WARNING! Warnings alert you to specific procedures that you should follow to avoid personal

injury, catastrophic loss of data, or extensive damage to the product.

ENWW iii

iv Conventions used in this guide ENWW

Table of contents

1 Removal and replacement ................................................................................................ 1

Introduction ............................................................................................................................. 2

Removal and replacement strategy ............................................................................................. 2

General cautions during removal and replacement ........................................................ 2

Electrostatic discharge ............................................................................................... 3

Required tools ........................................................................................................... 3

Types of screws ........................................................................................................ 4

Service approach ..................................................................................................................... 5

Before performing service .......................................................................................... 6

After performing service ............................................................................................. 6

Post-service test ......................................................................................................... 7

Print-quality test .......................................................................................... 7

Copy-quality test ........................................................................................ 7

DC controller PCA ..................................................................................................... 8

Parts removal order ................................................................................................... 9

Removal and replacement procedures ...................................................................................... 11

Customer self repair (CSR) components ...................................................................... 11

Toner cartridges ....................................................................................... 11

Staple cartridge ....................................................................................... 13

Duplex-reverse guide ................................................................................ 14

Toner-collection unit .................................................................................. 15

Formatter PCA ......................................................................................... 17

Fax PCA and cable .................................................................................. 18

Remove the fax PCA and cable ................................................... 18

Hard drive .............................................................................................. 20

Remove the HDD ....................................................................... 20

Install a replacement hard drive .................................................. 22

Tray 2 and 3 ........................................................................................... 23

Fuser ...................................................................................................... 24

Pickup roller and separation pad (Tray 1) ................................................... 25

Pickup roller (Tray 2) ................................................................................ 27

Pickup and feed rollers (Tray 3) .................................................................. 29

ENWW v

Separation roller (Tray 2) .......................................................................... 31

Secondary transfer roller ........................................................................... 32

Reinstall the transfer roller ........................................................... 33

Intermediate transfer belt (ITB) .................................................................... 34

Front-door assembly ................................................................................. 37

Foam reflector kit ..................................................................................... 38

Document feeder pickup roller ................................................................... 39

Document feeder separation pad and spring ............................................... 41

Control panel .......................................................................................... 44

Control-panel assembly (M575c model) ...................................................... 47

Important removal considerations ................................................ 47

Remove the control-panel assembly .............................................. 49

Reinstall the control-panel assembly ............................................. 56

Control-panel assembly to keyboard FFC (M575c model) .............................. 63

Important considerations ............................................................ 63

Remove the control-panel assembly to keyboard FFC ..................... 64

Reinstall the control-panel assembly to keyboard FFC ..................... 65

Keyboard assembly (M575c model) ........................................................... 68

Remove the keyboard assembly .................................................. 68

Keyboard overlay (M575c model) .............................................................. 72

Install a keyboard overlay .......................................................... 72

Back-side background selector assembly (M575c model) .............................. 76

Right door (optional paper feeder) ............................................................. 78

External panels, covers, and doors ............................................................................ 80

Identification and location ......................................................................... 80

Control-panel USB cover ........................................................................... 81

Control-panel HIP (hardward integration pocket) .......................................... 82

Front-upper cover ..................................................................................... 83

Remove the front-upper cover ...................................................... 83

Stapler cover ........................................................................................... 85

Remove the stapler cover ............................................................ 85

Right-door assembly ................................................................................. 86

Right-rear cover ........................................................................................ 90

Left cover ................................................................................................ 92

Rear-upper cover ...................................................................................... 95

Left-upper cover ........................................................................................ 97

Remove the left-upper cover ........................................................ 97

Rear cover ............................................................................................... 98

Remove the rear cover ............................................................... 98

Right-front cover ..................................................................................... 100

Remove the right-front cover ...................................................... 100

vi ENWW

Delivery cover ........................................................................................ 104

Remove the delivery cover ........................................................ 104

Right-top cover ....................................................................................... 106

Remove the right-top cover ....................................................... 106

Upper-right cover ................................................................................... 108

Remove the upper-right cover .................................................... 108

Front-top cover ....................................................................................... 110

Remove the front-top cover ....................................................... 110

Rear-top cover ....................................................................................... 112

Remove the rear-top cover ........................................................ 112

Document feeder and scanner assemblies ................................................................ 114

Cover front (document feeder front cover) .................................................. 114

Cover rear (document feeder rear cover) ................................................... 116

Deskew mylar and separation mylar ......................................................... 118

Document feeder tray extender ................................................................ 120

Document feeder jam-access cover ........................................................... 121

Docuement feeder roller cover ................................................................. 124

Document feeder whole unit .................................................................... 127

Reinstall the document feeder .................................................... 129

Document feeder whole unit (M575c model) ............................................. 130

Remove the document feeder .................................................... 130

Reinstall the document feeder .................................................... 131

Document feeder hinge assy .................................................................... 132

Scanner-control board (SCB) .................................................................... 133

Remove the SCB ...................................................................... 133

Scanner-control board (SCB; M575c) ....................................................... 136

Remove the SCB ...................................................................... 136

Image scanner whole unit ........................................................................ 139

Remove the scanner assembly ................................................... 139

Reinstall the scanner ................................................................ 142

Internal assemblies ................................................................................................ 147

Stapler assembly .................................................................................... 147

Remove the stapler assembly .................................................... 147

Interconnect board (ICB) ......................................................................... 148

Remove the ICB ....................................................................... 148

DC controller PCA and tray ..................................................................... 150

Remove the DC controller PCA and tray ..................................... 150

Low-voltage power supply (LVPS) .............................................................. 153

Remove the LVPS ..................................................................... 153

Delivery fan, cartridge fan, and environmental sensor ................................. 158

Remove the delivery fan, cartridge fan, and environmental sensor . 158

ENWW vii

Toner-collection sensor ............................................................................ 163

Remove the toner-collection sensor ............................................. 163

Residual-toner-feed motor ........................................................................ 166

Remove the residual-toner-feed motor ......................................... 166

Secondary transfer assembly ................................................................... 171

Reinstall the secondary transfer assembly ................................... 172

Lower pickup guide ................................................................................ 173

Remove the lower pickup guide ................................................ 173

Reinstall the lower pickup guide ................................................ 176

Registration density (RD) sensor assembly .................................................. 177

Remove the RD sensor assembly ................................................ 177

Power-supply fan and fan duct ................................................................. 181

Remove the power-supply fan and fan duct ................................. 181

Registration assembly ............................................................................. 184

Remove the registration assembly .............................................. 184

High-voltage power supply lower ............................................................. 189

Remove the high-voltage power supply lower .............................. 189

Developing-disengagement motor ............................................................. 192

Remove the developing-disengagement motor ............................. 192

Pickup motor .......................................................................................... 194

Remove the pickup motor ......................................................... 194

Lifter-drive assembly ................................................................................ 195

Remove the lifter-drive assembly ................................................ 195

Tray-pickup drive assembly ...................................................................... 197

Remove the tray-pickup drive assembly ...................................... 197

Tray-pickup assembly .............................................................................. 204

Remove the tray-pickup assembly .............................................. 204

Laser/scanner assembly (Y/M) ................................................................ 206

Remove the laser/scanner assembly (Y/M) ................................. 206

Laser/scanner assembly (C/Bk) ............................................................... 213

Remove the laser/scanner assembly (C/Bk) ................................ 214

High-voltage power supply upper ............................................................. 221

Remove the high-voltage power supply upper ............................. 221

Drum motor 1 ........................................................................................ 225

Remove the drum motor 1 ........................................................ 225

Drum motor 2 or drum motor 3 ................................................................ 226

Remove the drum motor 2 or drum motor 3 ................................ 226

Fuser motor ........................................................................................... 227

Remove the fuser motor ............................................................ 227

Main-drive assembly ............................................................................... 228

Remove the main-drive assembly ............................................... 229

viii ENWW

Fuser-drive assembly ............................................................................... 239

Remove the fuser-drive assembly ............................................... 240

Delivery assembly .................................................................................. 244

Remove the delivery assembly ................................................... 245

Duplex-drive assembly ............................................................................ 249

Remove the duplex-drive assembly ............................................. 250

Optional paper feeder assembly (Tray 3) .................................................. 251

Drawer connector .................................................................... 251

2 Parts and diagrams ...................................................................................................... 253

Order parts, accessories, and supplies ................................................................................... 254

Oderable parts .................................................................................................................... 254

Accessories .......................................................................................................... 254

Print cartridges and toner collection unit ................................................................... 255

Memory ............................................................................................................... 256

Customer self repair and service kits ........................................................................ 256

Related documentation and software ...................................................................................... 262

Fasteners used in this product ................................................................................................ 262

How to use the parts lists and diagrams .................................................................................. 263

Assembly locations ............................................................................................................... 264

Base product (no optional trays or accessories) ......................................................... 264

Base product (optional trays or accessories) ............................................................. 265

Covers ................................................................................................................................ 266

Document feeder and scanner assemblies (M575dn and 575f models) ....................................... 268

Document feeder and scanner assemblies (M575c model) ........................................................ 270

Keyboard (M575c model) ..................................................................................................... 272

Control panel assembly ........................................................................................................ 274

ADF assemblies ................................................................................................................... 276

Scanner assemblies .............................................................................................................. 278

Right-door assembly ............................................................................................................. 280

Internal assemblies ............................................................................................................... 282

Internal assemblies (1 of 6) ..................................................................................... 282

Internal assemblies (2 of 6) ..................................................................................... 284

Internal assemblies (3 of 6) ..................................................................................... 286

Internal assemblies (4 of 6) ..................................................................................... 288

Internal assemblies (5 of 6) ..................................................................................... 290

Internal assemblies (6 of 6) ..................................................................................... 292

Tray 2 ................................................................................................................. 294

Paper pickup assembly .......................................................................................... 296

PCAs ................................................................................................................... 298

Assessories .......................................................................................................................... 300

ENWW ix

1 x 500-sheet paper feeder .................................................................................... 300

Paper feeder covers ............................................................................................... 302

Paper feeder main body ........................................................................................ 304

Paper feeder cassette ............................................................................................. 306

Paper feeder PCA ................................................................................................. 308

Alphabetical parts list ........................................................................................................... 310

Numerical parts list .............................................................................................................. 320

Index ............................................................................................................................... 331

x ENWW

List of tables

Table 1-1 DC controller connectors ......................................................................................................... 8

Table 1-2 External panels, covers, doors, and scanner assembly; identification and location ........................ 80

Table 2-1 Accessories ....................................................................................................................... 254

Table 2-2 Related documentation and software .................................................................................... 262

Table 2-3 Common fasteners ............................................................................................................. 262

Table 2-4 Optional 500-sheet input tray .............................................................................................. 265

Table 2-5 External covers, panels, and doors ....................................................................................... 267

Table 2-6 Document feeder and scanner assemblies (M575dn and 575f models) ..................................... 269

Table 2-7 Docuement feeder and scanner assemblies (575c models) ....................................................... 271

Table 2-8 Keyboard and brackets ....................................................................................................... 273

Table 2-9 Control panel assembly ....................................................................................................... 275

Table 2-10 ADF assemblies ................................................................................................................ 277

Table 2-11 Scanner assemblies .......................................................................................................... 279

Table 2-12 Right-door assembly .......................................................................................................... 281

Table 2-13 Internal assemblies (1 of 6) ................................................................................................ 283

Table 2-14 Internal assemblies (2 of 6) ................................................................................................ 285

Table 2-15 Internal assemblies (3 of 6) ................................................................................................ 287

Table 2-16 Internal assemblies (4 of 6) ................................................................................................ 289

Table 2-17 Internal assemblies (5 of 6) ................................................................................................ 291

Table 2-18 Internal assemblies (6 of 6) ................................................................................................ 293

Table 2-19 Tray 2 ............................................................................................................................. 295

Table 2-20 Paper pickup assembly (Tray 2) ......................................................................................... 297

Table 2-21 PCAs .............................................................................................................................. 299

Table 2-22 1 x 500-sheet paper feeder ............................................................................................... 301

Table 2-23 Paper feeder covers .......................................................................................................... 303

Table 2-24 Paper feeder main body .................................................................................................... 305

Table 2-25 Paper feeder cassette ........................................................................................................ 307

Table 2-26 Pa

Table 2-27 Alphabetical parts list ....................................................................................................... 310

Table 2-28 Numerical parts list ........................................................................................................... 320

per feeder PCA ............................................................................................................ 309

ENWW xi

xii ENWW

List of figures

Figure 1-1 Phillips and Pozidriv screwdriver comparison ............................................................................ 3

Figure 1-2 DC controller PCA ................................................................................................................. 8

Figure 1-3 Parts removal order (1 of 3) .................................................................................................... 9

Figure 1-4 Parts removal order (2 of 3) .................................................................................................... 9

Figure 1-5 Parts removal order (3 of 3) .................................................................................................. 10

Figure 1-6 Remove the toner cartridge (1 of 2) ....................................................................................... 11

Figure 1-7 Remove the toner cartridge (2 of 2) ....................................................................................... 12

Figure 1-8 Remove the staple cartridge .................................................................................................. 13

Figure 1-9 Remove the duplex-reverse guide (1 of 2) ............................................................................... 14

Figure 1-10 Remove the duplex-reverse guide (2 of 2) ............................................................................. 14

Figure 1-11 Remove the toner-collection unit (1 of 4) ............................................................................... 15

Figure 1-12 Remove the toner-collection unit (2 of 4) ............................................................................... 15

Figure 1-13 Remove the toner-collection unit (3 of 4) ............................................................................... 16

Figure 1-14 Remove the toner-collection unit (4 of 4) ............................................................................... 16

Figure 1-15 Remove the formatter ......................................................................................................... 17

Figure 1-16 Remove the fax PCA and cable (1 of 2) ............................................................................... 18

Figure 1-17 Remove the fax PCA and cable (2 of 2) ............................................................................... 19

Figure 1-18 Remove the HDD (1 of 3) ................................................................................................... 20

Figure 1-19 Remove the HDD (2 of 3) ................................................................................................... 21

Figure 1-20 Remove the HDD (3 of 3) ................................................................................................... 21

Figure 1-21 Remove Tray 2 and 3 (1 of 2) ............................................................................................. 23

Figure 1-22 Remove Tray 2 and 3 (2 of 2) ............................................................................................. 23

Figure 1-23 Remove the fuser (1 of 2) ................................................................................................... 24

Figure 1-24 Remove the fuser (2 of 2) ................................................................................................... 24

Figure 1-25 Remove the pickup roller and separation pad (Tray 1; 1 of 3) ................................................. 25

Figure 1-26 Remove the pickup roller and separation pad (Tray 1; 2 of 3) ................................................. 25

Figure 1-27 Remove the pickup roller and separation pad (Tray 1; 3 of 3) ................................................. 26

Figure 1-28 Remove the pickup roller (Tray 2; 1 of 4) ............................................................................. 27

Figure 1-29 Remove the pickup roller (Tray 2; 2 of 4) ............................................................................. 27

Figure 1-30 Re

Figure 1-31 Remove the pickup roller (Tray 2; 4 of 4) ............................................................................. 28

Figure 1-32 Remove the Pickup and feed rollers (Tray 3; 1 of 2) ............................................................... 29

move the pickup roller (Tray 2; 3 of 4) ............................................................................. 28

ENWW xiii

Figure 1-33 Remove the Pickup and feed rollers (Tray 3; 2 of 2) ............................................................... 30

Figure 1-34 Remove the separation roller (Tray 2) ................................................................................... 31

Figure 1-35 Remove the transfer roller (1 of 3) ....................................................................................... 32

Figure 1-36 Remove the transfer roller (2 of 3) ....................................................................................... 32

Figure 1-37 Remove the transfer roller (3 of 3) ....................................................................................... 33

Figure 1-38 Reinstall the transfer roller ................................................................................................... 33

Figure 1-39 Remove the fuser (1 of 2) ................................................................................................... 34

Figure 1-40 Remove the intermediate transfer belt (1 of 3) ....................................................................... 34

Figure 1-41 Remove the intermediate transfer belt (2 of 3) ....................................................................... 35

Figure 1-42 Remove the intermediate transfer belt (3 of 3) ....................................................................... 36

Figure 1-43 Remove the front-door assembly (1 of 2) ............................................................................... 37

Figure 1-44 Remove the front-door assembly (2 of 2) ............................................................................... 37

Figure 1-45 Remove the foam reflector kit (1 of 2) .................................................................................. 38

Figure 1-46 Reinstall the foam reflector .................................................................................................. 38

Figure 1-47 Remove the document feeder pickup roller (1 of 4) ................................................................ 39

Figure 1-48 Remove the document feeder pickup roller (2 of 4) ................................................................ 39

Figure 1-49 Remove the document feeder pickup roller (3 of 4) ................................................................ 40

Figure 1-50 Remove the document feeder pickup roller (4 of 4) ................................................................ 40

Figure 1-51 Remove the document feeder separation pad and separation pad spring (1 of 5) ..................... 41

Figure 1-52 Remove the document feeder separation pad and separation pad spring (2 of 5) ..................... 41

Figure 1-53 Remove the document feeder separation pad and separation pad spring (3 of 5) ..................... 42

Figure 1-54 Remove the document feeder separation pad and separation pad spring (4 of 5) ..................... 42

Figure 1-55 Remove the document feeder separation pad and separation pad spring (5 of 5) ..................... 43

Figure 1-56 Reinstall the document feeder separation pad spring ............................................................. 43

Figure 1-57 Remove the control panel (1 of 5) ........................................................................................ 44

Figure 1-58 Remove the control panel (2 of 5) ........................................................................................ 44

Figure 1-59 Remove the control panel (3 of 5) ........................................................................................ 45

Figure 1-60 Remove the control panel (4 of 5) ........................................................................................ 45

Figure 1-61 Remove the control panel (5 of 5) ........................................................................................ 46

Figure 1-62 Raising the control panel to access the FFC connector (1 of 2) ................................................ 47

Figure 1-63 R

Figure 1-64 Check the control panel FFC for damage (1 of 2) .................................................................. 48

Figure 1-65 Check the control panel FFC for damage (2 of 2) .................................................................. 49

Figure 1-66 Remove the control-panel assembly (1 of 13) ........................................................................ 49

Figure 1-67 Remove the control-panel assembly (2 of 13) ........................................................................ 50

Figure 1-68 Remove the control-panel assembly (3 of 13) ........................................................................ 50

Figure 1-69 Remove the control-panel assembly (4 of 13) ........................................................................ 51

Figure 1-70 Remove the control-panel assembly (5 of 13) ........................................................................ 51

Figure 1-71 Remove the control-panel assembly (6 of 13) ........................................................................ 52

Figure 1-72 Remove the control-panel assembly (7 of 13) ........................................................................ 52

Figure 1-73 Remove the control-panel assembly (8 of 13) ........................................................................ 53

aise the control panel to access the FFC connector (2 of 2) ................................................... 48

xiv ENWW

Figure 1-74 Remove the control-panel assembly (9 of 13) ........................................................................ 54

Figure 1-75 Remove the control-panel assembly (10 of 13) ...................................................................... 54

Figure 1-76 Remove the control-panel assembly (11 of 13) ...................................................................... 55

Figure 1-77 Remove the control-panel assembly (12 of 13) ...................................................................... 55

Figure 1-78 Remove the control-panel assembly (13 of 13) ...................................................................... 56

Figure 1-79 Reinstall the control-panel assembly (1 of 13) ........................................................................ 56

Figure 1-80 Reinstall the control-panel assembly (2 of 13) ........................................................................ 57

Figure 1-81 Reinstall the control-panel assembly (3 of 13) ........................................................................ 57

Figure 1-82 Reinstall the control-panel assembly (4 of 13) ........................................................................ 58

Figure 1-83 Reinstall the control-panel assembly (5 of 13) ........................................................................ 58

Figure 1-84 Reinstall the control-panel assembly (6 of 13) ........................................................................ 59

Figure 1-85 Reinstall the control-panel assembly (7 of 13) ........................................................................ 59

Figure 1-86 Reinstall the control-panel assembly (8 of 13) ........................................................................ 60

Figure 1-87 Reinstall the control-panel assembly (9 of 13) ........................................................................ 60

Figure 1-88 Reinstall the control-panel assembly (10 of 13) ...................................................................... 61

Figure 1-89 Reinstall the control-panel assembly (11 of 13) ...................................................................... 61

Figure 1-90 Reinstall the control-panel assembly (12 of 13) ...................................................................... 62

Figure 1-91 Remove the control-panel assembly (13 of 13) ...................................................................... 62

Figure 1-92 Control-panel assembly to keyboard FFC .............................................................................. 63

Figure 1-93 Remove the control-panel assembly to keyboard FFC (1 of 3) .................................................. 64

Figure 1-94 Remove the control-panel assembly to keyboard FFC (2 of 3) .................................................. 64

Figure 1-95 Remove the control-panel assembly to keyboard FFC (3 of 3) .................................................. 65

Figure 1-96 Reinstall the control-panel assembly to keyboard FFC (1 of 4) ................................................. 65

Figure 1-97 Reinstall the control-panel assembly to keyboard FFC (2 of 4) ................................................. 66

Figure 1-98 Reinstall the control-panel assembly to keyboard FFC (3 of 4) ................................................. 66

Figure 1-99 Reinstall the control-panel assembly to keyboard FFC (4 of 4) ................................................. 67

Figure 1-100 Remove the keyboard assembly (1 of 7) ............................................................................. 68

Figure 1-101 Remove the keyboard assembly (2 of 7) ............................................................................. 69

Figure 1-102 Remove the keyboard assembly (3 of 7) ............................................................................. 69

Figure 1-103 Remove the keyboard assembly (4 of 7) ............................................................................. 70

Figure 1-104 Remove the keyboard assembly (5 of 7) ............................................................................. 70

Figure 1-105 Remove the keyboard assembly (6 of 7) ............................................................................. 71

Figure 1-106 Remove the keyboard assembly (7 of 7) ............................................................................. 71

Figure 1-107 Install a keyboard overlay (1 of 6) ...........................

Figure 1-108 Install a keyboard overlay (2 of 6) ..................................................................................... 72

Figure 1-109 Install a keyboard overlay (3 of 6) ..................................................................................... 73

Figure 1-110 Install a keyboard overlay (4 of 6) ..................................................................................... 73

Figure 1-111 Install a keyboard overlay (5 of 6) ..................................................................................... 74

Figure 1-112 Install a keyboard overlay (6 of 6) ..................................................................................... 75

Figure 1-113 Remove the back-side background selector assembly (1 of 3) ............................................... 76

Figure 1-114 Remove the back-side background selector assembly (2 of 3) ............................................... 76

.......................................................... 72

ENWW xv

Figure 1-115 Remove the back-side background selector assembly (3 of 3) ............................................... 77

Figure 1-116 Remove the right door; optional paper feeder (1 of 3) ......................................................... 78

Figure 1-117 Remove the right door; optional paper feeder (2 of 3) ......................................................... 78

Figure 1-118 Remove the right door; optional paper feeder (3 of 3) ......................................................... 79

Figure 1-119 External panels, covers, doors, and scanner assembly; identification and location ................... 80

Figure 1-120 Remove USB cover .......................................................................................................... 81

Figure 1-121 Remove the HIP cover ...................................................................................................... 82

Figure 1-122 Remove the front-upper cover (1 of 4) ................................................................................ 83

Figure 1-123 Remove the front-upper cover (2 of 4) ................................................................................ 83

Figure 1-124 Remove the front-upper cover (3 of 4) ................................................................................ 84

Figure 1-125 Remove the front-upper cover (4 of 4) ................................................................................ 84

Figure 1-126 Remove the stapler cover .................................................................................................. 85

Figure 1-127 Remove the right-door assembly (1 of 8) ............................................................................. 86

Figure 1-128 Remove the right-door assembly (2 of 8) ............................................................................. 86

Figure 1-129 Remove the right-door assembly (3 of 8) ............................................................................. 87

Figure 1-130 Remove the right-door assembly (4 of 8) ............................................................................. 87

Figure 1-131 Remove the right-door assembly (5 of 8) ............................................................................. 88

Figure 1-132 Remove the right-door assembly (6 of 8) ............................................................................. 88

Figure 1-133 Remove the right-door assembly (7 of 8) ............................................................................. 89

Figure 1-134 Remove the right-door assembly (8 of 8) ............................................................................. 89

Figure 1-135 Remove the right-rear cover (1 of 3) ................................................................................... 90

Figure 1-136 Remove the right-rear cover (2 of 3) ................................................................................... 90

Figure 1-137 Remove the right-rear cover (3 of 3) ................................................................................... 91

Figure 1-138 Remove the left cover (1 of 5) ........................................................................................... 92

Figure 1-139 Remove the left cover (2 of 5) ........................................................................................... 92

Figure 1-140 Remove the left cover (3 of 5) ........................................................................................... 93

Figure 1-141 Remove the left cover (4 of 5) ........................................................................................... 93

Figure 1-142 Remove the left cover (5 of 5) ........................................................................................... 94

Figure 1-143 Remove the rear-upper cover (1 of 3) ................................................................................. 95

Figure 1-144 Remove the rear-upper cover (2 of 3) ................................................................................. 95

Figure 1-145 Remove the rear-upper cover (3 of 3) ................................................................................. 96

Figure 1-146 Remove the left-upper cover .............................................................................................. 97

Figure 1-147 Remove the rear cover (1 of 2) .....

Figure 1-148 Remove the rear cover (2 of 2) .......................................................................................... 99

Figure 1-149 Remove the right-front cover (1 of 5) ................................................................................ 100

Figure 1-150 Remove the right-front cover (2 of 5) ................................................................................ 101

Figure 1-151 Remove the right-front cover (3 of 5) ................................................................................ 101

Figure 1-152 Remove the right-front cover (4 of 5) ................................................................................ 102

Figure 1-153 Remove the right-front cover (5 of 5) ................................................................................ 102

Figure 1-154 Reinstall the power button ............................................................................................... 103

Figure 1-155 Remove the delivery cover (1 of 3) .................................................................................. 104

..................................................................................... 98

xvi ENWW

Figure 1-156 Remove the delivery cover (2 of 3) .................................................................................. 105

Figure 1-157 Remove the delivery cover (3 of 3) .................................................................................. 105

Figure 1-158 Remove the right-top cover (1 of 2) .................................................................................. 106

Figure 1-159 Remove the right-top cover (2 of 2) .................................................................................. 107

Figure 1-160 Remove the upper-right cover (1 of 2) .............................................................................. 108

Figure 1-161 Remove the upper-right cover (2 of 2) .............................................................................. 109

Figure 1-162 Remove the front-top cover (1 of 2) .................................................................................. 110

Figure 1-163 Remove the front-top cover (2 of 2) .................................................................................. 111

Figure 1-164 Remove the rear-top cover (1 of 2) ................................................................................... 112

Figure 1-165 Remove the rear-top cover (2 of 2) ................................................................................... 113

Figure 1-166 Remove the document feeder front cover (1 of 4) ............................................................... 114

Figure 1-167 Remove the document feeder front cover (2 of 4) ............................................................... 114

Figure 1-168 Remove the document feeder front cover (3 of 4) ............................................................... 115

Figure 1-169 Remove the document feeder front cover (4 of 4) ............................................................... 115

Figure 1-170 Remove the document feeder rear cover (1 of 4) ............................................................... 116

Figure 1-171 Remove the document feeder rear cover (2 of 4) ............................................................... 116

Figure 1-172 Remove the document feeder rear cover (3 of 4) ............................................................... 117

Figure 1-173 Remove the document feeder rear cover (4 of 4) ............................................................... 117

Figure 1-174 Remove the deskew mylar and separation mylar (1 of 3) .................................................... 118

Figure 1-175 Remove the deskew mylar and separation mylar (2 of 3) .................................................... 118

Figure 1-176 Remove the deskew mylar and separation mylar (3 of 3) .................................................... 119

Figure 1-177 Remove the document feeder tray extender (1 of 2) ........................................................... 120

Figure 1-178 Remove the document feeder tray extender (2 of 2) ........................................................... 120

Figure 1-179 Remove the document feeder jam-access cover (1 of 5) ...................................................... 121

Figure 1-180 Remove the document feeder jam-access cover (2 of 5) ...................................................... 121

Figure 1-181 Remove the document feeder jam-access cover (3 of 5) ...................................................... 122

Figure 1-182 Remove the document feeder jam-access cover (4 of 5) ...................................................... 122

Figure 1-183 Remove the document feeder jam-access cover (5 of 5) ...................................................... 123

Figure 1-184 Remove the document feeder roller cover (1 of 4) .............................................................. 124

Figure 1-185 Remove the document feeder roller cover (2 of 4) .............................................................. 124

Figure 1-186 Remove the document feeder roller cover (3 of 4) .............................................................. 125

Figure 1-

Figure 1-188 Reinstall the document feeder roller cover ......................................................................... 126

Figure 1-189 Remove the document feeder assembly (1 of 2) ................................................................. 127

Figure 1-190 Remove the document feeder assembly (2 of 2) ................................................................. 128

Figure 1-191 Remove the document feeder assembly (M575c model; 1 of 2) ........................................... 130

Figure 1-192 Remove the document feeder assembly (M575c model; 2 of 2) ........................................... 131

Figure 1-193 Remove the docuement feeder hinge assembly .................................................................. 132

Figure 1-194 Remove the SCB (1 of 2) ................................................................................................ 133

Figure 1-195 Remove the SCB (2 of 2) ................................................................................................ 134

Figure 1-196 Reinstalling the SCB ....................................................................................................... 135

187 Remove the document feeder roller cover (4 of 4) .............................................................. 125

ENWW xvii

Figure 1-197 Remove the SCB (1 of 2) ................................................................................................ 136

Figure 1-198 Remove the SCB (2 of 2) ................................................................................................ 137

Figure 1-199 Reinstalling the SCB ....................................................................................................... 138

Figure 1-200 Remove the scanner assembly (1 of 5) ............................................................................. 139

Figure 1-201 Remove the scanner assembly (2 of 5) ............................................................................. 140

Figure 1-202 Remove the scanner assembly (3 of 5) ............................................................................. 140

Figure 1-203 Remove the scanner assembly (4 of 5) ............................................................................. 141

Figure 1-204 Remove the scanner assembly (5 of 5) ............................................................................. 141

Figure 1-205 Transfer the control-panel cable (1 of 7) ........................................................................... 142

Figure 1-206 Transfer the control-panel cable (2 of 7) ........................................................................... 143

Figure 1-207 Transfer the control-panel cable (3 of 7) ........................................................................... 143

Figure 1-208 Transfer the control-panel cable (4 of 7) ........................................................................... 144

Figure 1-209 Transfer the control-panel cable (5 of 7) ........................................................................... 144

Figure 1-210 Transfer the control-panel cable (6 of 7) ........................................................................... 145

Figure 1-211 Transfer the control-panel cable (7 of 7) ........................................................................... 145

Figure 1-212 Remove the stapler assembly .......................................................................................... 147

Figure 1-213 Remove the ICB (1 of 3) ................................................................................................. 148

Figure 1-214 Remove the ICB (2 of 3) ................................................................................................. 149

Figure 1-215 Remove the ICB (3 of 3) ................................................................................................. 149

Figure 1-216 Remove the DC controller PCA and tray (1 of 4) ............................................................... 150

Figure 1-217 Remove the DC controller PCA and tray (2 of 4) ............................................................... 151

Figure 1-218 Remove the DC controller PCA and tray (3 of 4) ............................................................... 151

Figure 1-219 Remove the DC controller PCA and tray (4 of 4) ............................................................... 152

Figure 1-220 Remove the LVPS (1 of 8) ............................................................................................... 153

Figure 1-221 Remove the LVPS (2 of 8) ............................................................................................... 154

Figure 1-222 Remove the LVPS (3 of 8) ............................................................................................... 154

Figure 1-223 Remove the LVPS (4 of 8) ............................................................................................... 155

Figure 1-224 Remove the LVPS (5 of 8) ............................................................................................... 155

Figure 1-225 Remove the LVPS (6 of 8) ............................................................................................... 156

Figure 1-226 Remove the LVPS (7 of 8) ............................................................................................... 156

Figure 1-227 Remove the LVPS (8 of 8) ............................................................................................... 157

Figure 1-228 Remove the delivery fan, cartridge fan, and environmental sensor (1 of 9) ........................... 158

Figure 1-229 Remove the delivery fan, cartridge fan, and environmental sensor (2 of 9) ........................... 159

Figure 1-230 Re

Figure 1-231 Remove the delivery fan, cartridge fan, and environmental sensor (4 of 9) ........................... 160

Figure 1-232 Remove the delivery fan, cartridge fan, and environmental sensor (5 of 9) ........................... 160

Figure 1-233 Remove the delivery fan, cartridge fan, and environmental sensor (6 of 9) ........................... 161

Figure 1-234 Remove the delivery fan, cartridge fan, and environmental sensor (7 of 9) ........................... 161

Figure 1-235 Remove the delivery fan, cartridge fan, and environmental sensor (8 of 9) ........................... 162

Figure 1-236 Remove the delivery fan, cartridge fan, and environmental sensor (9 of 9) ........................... 162

Figure 1-237 Remove the toner-collection sensor (1 of 4) ....................................................................... 163

move the delivery fan, cartridge fan, and environmental sensor (3 of 9) ........................... 159

xviii ENWW

Figure 1-238 Remove the toner-collection sensor (2 of 4) ....................................................................... 164

Figure 1-239 Remove the toner-collection sensor (3 of 4) ....................................................................... 164

Figure 1-240 Remove the toner-collection sensor (4 of 4) ....................................................................... 165

Figure 1-241 Remove the residual-toner-feed motor (1 of 7) ................................................................... 166

Figure 1-242 Remove the residual-toner-feed motor (2 of 7) ................................................................... 167

Figure 1-243 Remove the residual-toner-feed motor (3 of 7) ................................................................... 167

Figure 1-244 Remove the residual-toner-feed motor (4 of 7) ................................................................... 168

Figure 1-245 Remove the residual-toner-feed motor (5 of 7) ................................................................... 168

Figure 1-246 Remove the residual-toner-feed motor (6 of 7) ................................................................... 169

Figure 1-247 Remove the residual-toner-feed motor (7 of 7) ................................................................... 169

Figure 1-248 Reinstall the residual-toner collection door ........................................................................ 170

Figure 1-249 Remove the transfer roller (1 of 3) ................................................................................... 171

Figure 1-250 Remove the secondary transfer assembly (2 of 3) .............................................................. 171

Figure 1-251 Remove the secondary transfer assembly (3 of 3) .............................................................. 172

Figure 1-252 Reinstall the secondary transfer assembly ......................................................................... 172

Figure 1-253 Remove the lower pickup guide (1 of 4) ........................................................................... 173

Figure 1-254 Remove the lower pickup guide (2 of 4) ........................................................................... 174

Figure 1-255 Remove the lower pickup guide (3 of 4) ........................................................................... 175

Figure 1-256 Remove the lower pickup guide (4 of 4) ........................................................................... 176

Figure 1-257 Remove the RD sensor assembly (1 of 6) .......................................................................... 177

Figure 1-258 Remove the RD sensor assembly (2 of 6) .......................................................................... 178

Figure 1-259 Remove the RD sensor assembly (3 of 6) .......................................................................... 178

Figure 1-260 Remove the RD sensor assembly (4 of 6) .......................................................................... 179

Figure 1-261 Remove the RD sensor assembly (5 of 6) .......................................................................... 179

Figure 1-262 Remove the RD sensor assembly (6 of 6) .......................................................................... 180

Figure 1-263 Remove the power-supply fan (1 of 4) .............................................................................. 181

Figure 1-264 Remove the power-supply fan (2 of 4) .............................................................................. 182

Figure 1-265 Remove the power-supply fan (3 of 4) .............................................................................. 182

Figure 1-266 Remove the power-supply fan (4 of 4) .............................................................................. 183

Figure 1-267 Remove the registration assembly (1 of 8) ........................................................................ 184

Figure 1-268 Remove the registration assembly (2 of 8) ........................................................................ 185

Figure 1-269 Remove th

Figure 1-270 Remove the registration assembly (4 of 8) ........................................................................ 186

Figure 1-271 Remove the registration assembly (5 of 8) ........................................................................ 186

Figure 1-272 Remove the registration assembly (6 of 8) ........................................................................ 187

Figure 1-273 Remove the registration assembly (7 of 8) ........................................................................ 187

Figure 1-274 Remove the registration assembly (8 of 8) ........................................................................ 188

Figure 1-275 Remove the high-voltage power supply lower (1 of 4) ........................................................ 189

Figure 1-276 Remove the high-voltage power supply lower (2 of 4) ........................................................ 190

Figure 1-277 Remove the high-voltage power supply lower (3 of 4) ........................................................ 190

Figure 1-278 Remove the high-voltage power supply lower (4 of 4) ........................................................ 191

e registration assembly (3 of 8) ........................................................................ 185

ENWW xix

Figure 1-279 Reinstall the high-voltage power supply lower ................................................................... 191

Figure 1-280 Remove the developing-disengagement motor (1 of 2) ....................................................... 192

Figure 1-281 Remove the developing-disengagement motor (2 of 2) ....................................................... 193

Figure 1-282 Remove the pickup motor ............................................................................................... 194

Figure 1-283 Remove the lifter-drive assembly (1 of 2) .......................................................................... 195

Figure 1-284 Remove the lifter-drive assembly (2 of 2) .......................................................................... 196

Figure 1-285 Remove the tray-pickup drive assembly (1 of 10) ............................................................... 197

Figure 1-286 Remove the tray-pickup drive assembly (2 of 10) ............................................................... 198

Figure 1-287 Remove the tray-pickup drive assembly (3 of 10) ............................................................... 198

Figure 1-288 Remove the tray-pickup drive assembly (4 of 10) ............................................................... 199

Figure 1-289 Remove the tray-pickup drive assembly (5 of 10) ............................................................... 199

Figure 1-290 Remove the tray-pickup drive assembly (6 of 10) ............................................................... 200

Figure 1-291 Remove the tray-pickup drive assembly (7 of 10) ............................................................... 200

Figure 1-292 Remove the tray-pickup drive assembly (8 of 10) ............................................................... 201

Figure 1-293 Remove the tray-pickup drive assembly (9 of 10) ............................................................... 201

Figure 1-294 Remove the tray-pickup drive assembly (10 of 10) ............................................................. 202

Figure 1-295 Reinstall the tray-pickup drive assembly (1 of 3) ................................................................ 202

Figure 1-296 Reinstall the tray-pickup drive assembly (2 of 3) ................................................................ 203

Figure 1-297 Reinstall the tray-pickup drive assembly (3 of 3) ................................................................ 203

Figure 1-298 Remove the tray-pickup assembly (1 of 3) ......................................................................... 204

Figure 1-299 Remove the tray-pickup assembly (2 of 3) ......................................................................... 205

Figure 1-300 Remove the tray-pickup assembly (3 of 3) ......................................................................... 205

Figure 1-301 Remove the laser/scanner assembly (Y/M) (1 of 12) ......................................................... 206

Figure 1-302 Remove the laser/scanner assembly (Y/M) (2 of 12) ......................................................... 207

Figure 1-303 Remove the laser/scanner assembly (Y/M) (3 of 12) ......................................................... 207

Figure 1-304 Remove the laser/scanner assembly (Y/M) (4 of 12) ......................................................... 208

Figure 1-305 Remove the laser/scanner assembly (Y/M) (5 of 12) ......................................................... 208

Figure 1-306 Remove the laser/scanner assembly (Y/M) (6 of 12) ......................................................... 209

Figure 1-307 Remove the laser/scanner assembly (Y/M) (7 of 12) ......................................................... 209

Figure 1-308 Remove the laser/scanner assembly (Y/M) (8 of 12) ......................................................... 210

Figure 1-309 Remove the laser/scanner assembly (Y/M) (9 of 12) ......................................................... 210

Figure 1-310 Remo

Figure 1-311 Remove the laser/scanner assembly (Y/M) (11 of 12) ....................................................... 211

Figure 1-312 Remove the laser/scanner assembly (Y/M) (12 of 12) ....................................................... 212

Figure 1-313 Remove the laser/scanner assembly (C/Bk) (1 of 7) .......................................................... 214

Figure 1-314 Remove the laser/scanner assembly (C/Bk) (2 of 7) .......................................................... 214

Figure 1-315 Remove the laser/scanner assembly (C/Bk) (3 of 7) .......................................................... 215

Figure 1-316 Remove the laser/scanner assembly (C/Bk) (4 of 7) .......................................................... 215

Figure 1-317 Remove the laser/scanner assembly (C/Bk) (5 of 7) .......................................................... 216

Figure 1-318 Remove the laser/scanner assembly (C/Bk) (6 of 7) .......................................................... 217

Figure 1-319 Remove the laser/scanner assembly (C/Bk) (7 of 7) .......................................................... 218

ve the laser/scanner assembly (Y/M) (10 of 12) ....................................................... 211

xx ENWW

Figure 1-320 Reinstall the PGC actuators (1 of 5) ................................................................................. 218

Figure 1-321 Reinstall the PGC actuators (2 of 5) ................................................................................. 219

Figure 1-322 Reinstall the PGC actuators (3 of 5) ................................................................................. 219

Figure 1-323 Reinstall the PGC actuators (4 of 5) ................................................................................. 220

Figure 1-324 Reinstall the PGC actuators (5 of 5) ................................................................................. 220

Figure 1-325 Remove the high-voltage power supply upper (1 of 5) ........................................................ 221

Figure 1-326 Remove the high-voltage power supply upper (2 of 5) ........................................................ 222

Figure 1-327 Remove the high-voltage power supply upper (3 of 5) ........................................................ 222

Figure 1-328 Remove the high-voltage power supply upper (4 of 5) ........................................................ 223

Figure 1-329 Remove the high-voltage power supply upper (5 of 5) ........................................................ 223

Figure 1-330 Reinstall the high-voltage power supply upper ................................................................... 224

Figure 1-331 Remove the drum motor 1 ............................................................................................... 225

Figure 1-332 Remove the drum motor 2 or drum motor 3 ...................................................................... 226

Figure 1-333 Remove the fuser motor .................................................................................................. 227

Figure 1-334 Remove the main-drive assembly (1 of 7) .......................................................................... 229

Figure 1-335 Remove the main-drive assembly (2 of 7) .......................................................................... 229

Figure 1-336 Remove the main-drive assembly (3 of 7) .......................................................................... 230

Figure 1-337 Remove the main-drive assembly (4 of 7) .......................................................................... 230

Figure 1-338 Remove the main-drive assembly (5 of 7) .......................................................................... 231

Figure 1-339 Remove the main-drive assembly (6 of 7) .......................................................................... 231

Figure 1-340 Remove the main-drive assembly (7 of 7) .......................................................................... 232

Figure 1-341 Reinstall the main-drive assembly (1 of 11) ....................................................................... 233

Figure 1-342 Reinstall the main-drive assembly (2 of 11) ....................................................................... 233

Figure 1-343 Reinstall the main-drive assembly (3 of 11) ....................................................................... 234

Figure 1-344 Reinstall the main-drive assembly (4 of 11) ....................................................................... 234

Figure 1-345 Reinstall the main-drive assembly (5 of 11) ....................................................................... 235

Figure 1-346 Reinstall the main-drive assembly (6 of 11) ....................................................................... 236

Figure 1-347 Reinstall the main-drive assembly (7 of 11) ....................................................................... 236

Figure 1-348 Reinstall the main-drive assembly (8 of 11) ....................................................................... 237

Figure 1-349 Reinstall the main-drive assembly (9 of 11) ....................................................................... 237

Figure 1-350 Reinstall the main-drive assembly (10 of 11) ..................................................................... 238

Figure 1-351 Reinstall the main-drive assembly (11 of 11) ..................................................................... 238

Figure 1-

Figure 1-353 Remove the fuser-drive assembly (2 of 6) .......................................................................... 240

Figure 1-354 Remove the fuser-drive assembly (3 of 6) .......................................................................... 241

Figure 1-355 Remove the fuser-drive assembly (4 of 6) .......................................................................... 241

Figure 1-356 Remove the fuser-drive assembly (5 of 6) .......................................................................... 242

Figure 1-357 Remove the fuser-drive assembly (6 of 6) .......................................................................... 242

Figure 1-358 Reinstall the fuser-drive assembly ..................................................................................... 243

Figure 1-359 Remove the delivery assembly (1 of 5) ............................................................................. 245

Figure 1-360 Remove the delivery assembly (2 of 5) ............................................................................. 245

352 Remove the fuser-drive assembly (1 of 6) .......................................................................... 240

ENWW xxi

Figure 1-361 Remove the delivery assembly (3 of 5) ............................................................................. 246

Figure 1-362 Remove the delivery assembly (4 of 5) ............................................................................. 246

Figure 1-363 Remove the delivery assembly (5 of 5) ............................................................................. 247

Figure 1-364 Reinstall the delivery assembly (1 of 2) ............................................................................. 248

Figure 1-365 Reinstall the delivery assembly (2 of 2) ............................................................................. 248

Figure 1-366 Remove the duplex-drive assembly (1 of 2) ....................................................................... 250

Figure 1-367 Remove the duplex-drive assembly (2 of 2) ....................................................................... 250

Figure 1-368 Remove the drawer connector; optional paper feeder ........................................................ 251

Figure 2-1 Base product (no optional trays or accessories) ..................................................................... 264

Figure 2-2 Base product (optional trays or accessories) .......................................................................... 265

Figure 2-3 External covers, panels, and doors ...................................................................................... 266

Figure 2-4 Document feeder and scanner assemblies (M575dn and 575f models) .................................... 268

Figure 2-5 Document feeder and scanner assemblies (575c models) ....................................................... 270

Figure 2-6 Keyboard and brackets ...................................................................................................... 272

Figure 2-7 Control panel assembly ...................................................................................................... 274

Figure 2-8 ADF assemblies ................................................................................................................. 276

Figure 2-9 Scanner assemblies ........................................................................................................... 278

Figure 2-10 Right-door assembly ......................................................................................................... 280

Figure 2-11 Internal assemblies (1 of 6) ............................................................................................... 282

Figure 2-12 Internal assemblies (2 of 6) ............................................................................................... 284

Figure 2-13 Internal assemblies (3 of 6) ............................................................................................... 286

Figure 2-14 Internal assemblies (4 of 6) ............................................................................................... 288

Figure 2-15 Internal assemblies (5 of 6) ............................................................................................... 290

Figure 2-16 Internal assemblies (6 of 6) ............................................................................................... 292

Figure 2-17 Tray 2 ............................................................................................................................ 294

Figure 2-18 Paper pickup assembly (Tray 2) ........................................................................................ 296

Figure 2-19 PCAs ............................................................................................................................. 298

Figure 2-20 1 x 500-sheet paper feeder .............................................................................................. 300

Figure 2-21 Pa

per feeder covers ......................................................................................................... 302

Figure 2-22 Paper feeder main body ................................................................................................... 304

Figure 2-23 Paper feeder cassette ....................................................................................................... 306

Figure 2-24 Paper feeder PCA ........................................................................................................... 308

xxii ENWW

1 Removal and replacement

NOTE: Your product might not appear exactly as the one shown in the photos in this chapter.

Although some photos do not show the document feeder and scanner assembly installed, the
procedures in this chapter are appropriate for your product.

Introduction

●

Removal and replacement strategy

●

Service approach

●

Removal and replacement procedures

●

ENWW 1

Introduction

This chapter describes the removal and replacement of field-replaceable units (FRUs) only.

Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to
provide directions for difficult or critical replacement procedures.

not

HP does

Note the length, diameter, color, type, and location of each screw. Be sure to return each screw to its
original location during reassembly.

Incorrectly routed or loose wire harnesses can interfere with other internal components and can become
damaged or broken. Frayed or pinched harness wires can be difficult to find. When replacing wire
harnesses, always use the provided wire loops, lance points, or wire-harness guides and retainers.

support repairing individual subassemblies or troubleshooting to the component level.

Removal and replacement strategy

General cautions during removal and replacement

This chapter describes the removal and replacement of field-replaceable units (FRUs) only.

Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to
provide directions for difficult or critical replacement procedures.

not

HP does

WARNING! Turn the product off, wait 5 seconds, and then remove the power cable before

attempting to service the product. If this warning is not followed, severe injury can result, in addition to
damage to the product. The power must be on for certain functional checks during troubleshooting.
However, disconnect the power supply during parts removal.

Never operate or service the product with the protective cover removed from the laser scanner
assembly. The reflected beam, although invisible, can damage your eyes.

The sheet-metal parts can have sharp edges. Be careful when handling sheet-metal parts.

CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do

not straighten prefolds in the FFCs. You
an FFC into a connector can cause a short circuit in a PCA.

Incorrectly routed or loose wire harnesses can interfere with other internal components and can become
damaged or broken. Frayed or pinched harness wires can be difficult to find. When replacing wire
harnesses, always use the provided wire loops, lance points, or wire-harness guides and retainers.

NOTE: To install a self-tapping screw, first turn it counterclockwise to align it with the thread pattern,

and then carefully turn it clockwise to tighten. Do not overtighten. If a self-tapping screw-hole becomes
stripped, repair the screw-hole or replace the affected assembly.

Note the length, diameter, color, type, and location of each screw. Be sure to return each screw to its
original location during reassembly.

support repairing individual subassemblies or troubleshooting to the component level.

must

fully seat all FFCs in their connectors. Failure to fully seat

2 Chapter 1 Removal and replacement ENWW

TIP: For clarity, some photos in this chapter might show components removed that would not be

removed to service the product. If necessary, remove the components listed at the beginning of a
procedure before proceeding to service the product.

Electrostatic discharge

CAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder

when removing product parts. Always perform service work at an ESD-protected workstation or mat, or
use an ESD strap. If an ESD workstation, mat, or strap is not available, ground yourself by touching the
sheet-metal chassis

Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.

before

Required tools

#1 Phillips screwdriver with a magnetic tip and a 152-mm (6-inch) shaft length

●

#2 Phillips screwdriver with a magnetic tip and a 152-mm (6-inch) shaft length

●

Small flat blade screwdriver

●

Needle-nose pliers

●

touching an ESD-sensitive part.

ESD mat or ESD strap (if one is available)

●

Penlight (optional)

●

CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a Pozidriv® screwdriver

(callout 2) or any motorized screwdriver. These can damage screws or screw threads.

Figure 1-1 Phillips and Pozidriv screwdriver comparison

ENWW

Removal and replacement strategy

3

Types of screws

NOTE: The illustration in this section are for reference only. The screws in your product might look

slightly different.

Illustration Description Size Part number Use

Screw with washer M3X6 XB2-7300-000CN Used to secure metal

components to metal
components (for
example, a ground
wire to the frame)

Screw, tapping M3X6 XA9-1503-000CN

Screw D-M3X6 XA9-1671-000CN

Screw P-M3X8 XB4-5300-807CN

Screw, tapping, truss
head

M4X10 XB4-7401-005CN Used to secure

anything to plastic

4 Chapter 1 Removal and replacement ENWW

Service approach

Product repair normally begins by using the product internal diagnostics and the following two-step
process:

1. Isolate the problem to the major system (for example, the network or server, or the product).

2. Troubleshoot the problem by using the procedures in the solve problems chapter.

After you find a faulty part, the product can usually be repaired at the assembly level by replacing field­replaceable units (FRUs). Some mechanical assemblies might need to be repaired at the subassembly
level.

NOTE: Your product might not appear exactly as the one shown in the photos in this chapter.

Although some photos do not show the document feeder and scanner assembly installed, the
procedures in this chapter are appropriate for your product.

ENWW

Service approach

5

Before performing service

Remove all media from the product.

●

Turn off the power using the power switch.

●

Unplug the power cable and interface cable or cables.

●

Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). If an

●

ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal

before

chassis

touching an ESD-sensitive part.

Remove the toner cartridges. See

●

Remove the tray or trays. See

●

After performing service

Plug in the power cable.

●

Reinstall the toner cartridges.

●

Reinstall the tray or trays.

●

If the optional paper feeder was installed, place the product on the feeder.

●

Toner cartridges on page 11.

Tray 2 and 3 on page 23.

6 Chapter 1 Removal and replacement ENWW