HP 700 CLR User Manual
LASERJET ENTERPRISE 700
Repair Manual
2
3
M712
HP LaserJet Enterprise 700 M712
Repair Manual
Copyright and License
Trademark Credits
© 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: CF235-90962
Edition 1, 11/2012
Microsoft®, Windows®, Windows® XP,
and Windows Vista® are U.S. registered
trademarks of Microsoft Corporation.
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.
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iv Conventions used in this guide ENWW
Table of contents
1 Removal and replacement ................................................................................................ 1
Removal and replacement strategy ............................................................................................. 2
Introduction .............................................................................................................. 2
Required tools ........................................................................................................... 3
Types of screws ........................................................................................................ 3
Service approach ...................................................................................................... 3
Before performing service .......................................................................................... 4
After performing service ............................................................................................. 4
Parts removal order ................................................................................................... 4
Pickup rollers ........................................................................................................................... 5
Tray 1 (multipurpose tray) pickup roller ........................................................................ 5
Tray 2 and Tray 3 pickup rollers ................................................................................. 6
Tray 4, Tray 5, and Tray 6 pickup and feed rollers ....................................................... 7
Separation pads and rollers ...................................................................................................... 8
Tray 1 separation pad assembly ................................................................................. 8
Tray 2 and Tray 3 separation rollers ............................................................................ 9
Tray 4, 5, and 6 separation rollers .............................................................................. 9
Covers and doors .................................................................................................................. 11
Front cover ............................................................................................................. 11
Right rear cover ...................................................................................................... 12
Left door ................................................................................................................ 12
Rear cover ............................................................................................................. 13
Front left lower cover ............................................................................................... 14
Front right lower cover ............................................................................................. 15
Face-down cover ..................................................................................................... 16
Tray 1 (multipurpose tray) cover ................................................................................ 17
Right door .............................................................................................................. 18
Top cover ............................................................................................................... 19
Left handle cover ..................................................................................................... 20
Left inner lower cover .............................................................................................. 20
Left inner rear cover ................................................................................................. 21
Left inner front cover ................................................................................................ 22
ENWW v
Right handle cover .................................................................................................. 24
Face-down side cover .............................................................................................. 24
Top rear cover ........................................................................................................ 25
Left upper cover ...................................................................................................... 26
Left inner upper cover .............................................................................................. 27
Face-down upper cover ............................................................................................ 28
Main assemblies .................................................................................................................... 30
Duplexer or duplex cover ......................................................................................... 31
Fuser ..................................................................................................................... 32
Control panel assembly ........................................................................................... 33
Paper delivery assembly .......................................................................................... 34
Registration assembly .............................................................................................. 37
Transfer roller ......................................................................................................... 40
Paper feed assembly ............................................................................................... 40
Laser scanner ......................................................................................................... 45
Toner cartridge door ............................................................................................... 47
Formatter cage assembly .......................................................................................... 52
Upper cassette pickup assembly ................................................................................ 53
Lower cassette pickup assembly ................................................................................ 56
Lifter drive assembly ................................................................................................ 58
Main drive assembly ............................................................................................... 60
Fuser drive assembly ............................................................................................... 64
Switches ............................................................................................................................... 67
Power switch assembly ............................................................................................ 68
Left door interlock switch .......................................................................................... 68
Cartridge door interlock switch ................................................................................. 71
Cartridge door open detection switch ........................................................................ 73
Upper cassette media end switch .............................................................................. 75
Lower cassette media end switch ............................................................................... 76
Sensors ................................................................................................................................. 78
Environment sensor .................................................................................................. 79
Cartridge presence sensor ........................................................................................ 79
Right door sensor .................................................................................................... 80
Motors, fans, and clutches ....................................................................................................... 83
Fuser motor ............................................................................................................ 85
Rear fan ................................................................................................................. 85
Front fan ................................................................................................................ 87
Fuser fan ................................................................................................................ 89
Upper cassette pickup clutch ..................................................................................... 90
Lower cassette pickup clutch ..................................................................................... 91
Printed circuit-board assemblies (PCAs) ..................................................................................... 93
vi ENWW
Formatter PCA ........................................................................................................ 93
High-voltage power supply ....................................................................................... 94
DC controller PCA ................................................................................................... 96
Low-voltage power supply assembly .......................................................................... 97
USB PCA ............................................................................................................... 98
Miscellaneous parts .............................................................................................................. 100
Hard drive ........................................................................................................... 100
Trays .................................................................................................................................. 101
1x500-sheet paper feeder assembly ........................................................................ 101
1x500 rear cover ................................................................................... 101
1x500 left cover .................................................................................... 102
1x500 right-front cover ........................................................................... 104
1x500 front-upper cover ......................................................................... 105
1x500 right door ................................................................................... 106
1x500 right-lower cover .......................................................................... 108
1x500 pickup assembly .......................................................................... 109
1x500 lifter-drive assembly ..................................................................... 112
1x500 pickup motor ............................................................................... 113
1x500 driver PCA .................................................................................. 114
1x500 or 3x500-sheet paper deck (optional accessory) ............................................ 115
Paper deck right-door assembly ............................................................... 115
Paper deck left cover .............................................................................. 117
Paper deck pickup motor ........................................................................ 118
Paper deck front-lower cover ................................................................... 119
Paper deck right-corner cover .................................................................. 120
Paper deck front-upper cover ................................................................... 121
Paper deck right-lower cover 1 ................................................................ 122
Paper deck right-lower cover 2 ................................................................ 123
Paper deck left-lower cover ...................................................................... 124
Paper deck rear cover ............................................................................ 124
Paper deck rear-lower cover .................................................................... 125
Paper deck paper deck controller PCAs .................................................... 126
Paper deck lifter-drive assembly ............................................................... 127
Paper deck right and left cassette rails ...................................................... 128
Paper deck paper deck pickup assembly ................................................... 129
Input devices ....................................................................................................................... 131
High capacity input (HCI) feeder ............................................................................. 131
HCI right tray ......................................................................................... 131
HCI left tray ........................................................................................... 131
HCI left cover ........................................................................................ 132
HCI left lower cover ................................................................................ 133
ENWW vii
HCI rear cover ....................................................................................... 134
HCI right door ....................................................................................... 135
HCI right front cover ............................................................................... 135
HCI right center cover and right rear cover ................................................ 136
HCI right lower cover ............................................................................. 137
HCI rear lower cover .............................................................................. 138
HCI left tray lifter drive ............................................................................ 139
HCI right tray lifter drive ......................................................................... 140
HCI left tray pickup drive ........................................................................ 140
HCI right tray pickup drive ...................................................................... 141
HCI controller PCA ................................................................................. 142
HCI left tray automatic close assembly ...................................................... 143
HCI right tray automatic close assembly .................................................... 144
HCI left tray pickup assembly ................................................................... 145
HCI right tray pickup assembly ................................................................ 147
HCI merge assembly .............................................................................. 148
2 Parts and diagrams ...................................................................................................... 151
Order parts by authorized service providers ............................................................................ 152
Customer self repair orderable parts ........................................................................ 152
Supplies part numbers ........................................................................................... 154
Accessories part numbers ....................................................................................... 154
Related documentation and software ....................................................................... 155
Assembly locations ............................................................................................................... 156
Base product (no optional trays or accessories) ......................................................... 156
Optional 500-sheet paper feeder (accessory) ........................................................... 157
Optional 1x500-sheet paper deck (accessory) .......................................................... 158
Optional 3x500-sheet paper deck (accessory) .......................................................... 159
High capacity input (HCI) paper deck ...................................................................... 160
Duplexer .............................................................................................................. 161
Print engine ......................................................................................................................... 162
External covers and panels ..................................................................................... 162
Internal components (1 of 4) ................................................................................... 164
Internal components (2 of 4) ................................................................................... 166
Internal components (3 of 4) ................................................................................... 168
Internal components (4 of 4) ................................................................................... 170
500-sheet paper feeder (Tray 4) ............................................................................................ 172
500-sheet paper feeder (Tray 4) covers .................................................................... 172
500-sheet paper feeder (Tray 4) components ............................................................ 174
1x500 and 3x500 paper deck .............................................................................................. 176
1x500 and 3x500 paper deck covers ..................................................................... 176
viii ENWW
1x500 paper deck components .............................................................................. 178
3x500 paper deck components .............................................................................. 180
High capacity input (HCI) feeder ............................................................................................ 182
HCI covers ........................................................................................................... 182
HCI components (1 of 2) ........................................................................................ 184
HCI components (2 of 2) ........................................................................................ 186
Fasteners used in this product ................................................................................................ 188
Alphabetical parts list ........................................................................................................... 189
Numerical parts list .............................................................................................................. 198
Index ............................................................................................................................... 207
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x ENWW
List of tables
Table 1-1 Switch locations ................................................................................................................... 67
Table 1-2 Sensor locations ................................................................................................................... 78
Table 1-3 Motor locations .................................................................................................................... 83
Table 1-4 Fan locations ....................................................................................................................... 84
Table 1-5 Fan locations ....................................................................................................................... 84
Table 2-1 Order parts, accessories, and supplies .................................................................................. 152
Table 2-2 Orderable parts ................................................................................................................. 152
Table 2-3 Supplies part numbers ......................................................................................................... 154
Table 2-4 Accessories part numbers .................................................................................................... 154
Table 2-5 Related documentation and software .................................................................................... 155
Table 2-6 Optional 500-sheet paper feeder (accessory) ......................................................................... 157
Table 2-7 Optional 1x500-sheet paper deck (accessory) ....................................................................... 158
Table 2-8 Optional 3x500-sheet paper deck (accessory) ....................................................................... 159
Table 2-9 Optional 500-sheet input tray .............................................................................................. 160
Table 2-10 Duplexer ......................................................................................................................... 161
Table 2-11 External covers and panels ................................................................................................ 163
Table 2-12 Internal components (1 of 3) (print engine) .......................................................................... 165
Table 2-13 Internal components (2 of 4) .............................................................................................. 167
Table 2-14 Internal components (3 of 4) .............................................................................................. 169
Table 2-15 Internal components (4 of 4) .............................................................................................. 171
Table 2-16 500-sheet paper feeder (Tray 4) covers ............................................................................... 173
Table 2-17 500-sheet paper feeder (Tray 4) components ....................................................................... 175
Table 2-18 1x500 and 3x500 paper deck covers ................................................................................ 177
Table 2-19 1x500 paper deck components ......................................................................................... 179
Table 2-20 3x500 paper deck components ......................................................................................... 181
Table 2-21 HCI covers ...................................................................................................................... 183
Table 2-22 HCI components (1 of 2) ................................................................................................... 185
Table 2-23 HCI components (2 of 2) ................................................................................................... 187
Table 2-24 Common fasteners ........................................................................................................... 188
Table 2-25
Table 2-26 Numerical parts list ........................................................................................................... 198
Alphabetical parts list ....................................................................................................... 189
ENWW xi
xii ENWW
List of figures
Figure 1-1 Screwdrivers ......................................................................................................................... 3
Figure 1-2 Remove the Tray 1 (multipurpose tray) pickup roller ................................................................... 5
Figure 1-3 Remove the Tray 2 and Tray 3 pickup rollers (1 of 2) ................................................................. 6
Figure 1-4 Remove the Tray 2 and Tray 3 pickup rollers (2 of 2) ................................................................. 6
Figure 1-5 Remove the 1x500 or 3x500 rollers (1 of 2) ............................................................................ 7
Figure 1-6 Remove the 1x500 or 3x500 rollers (2 of 2) ............................................................................ 7
Figure 1-7 Remove the Tray 1 separation pad assembly (1 of 2) ................................................................. 8
Figure 1-8 Remove the Tray 1 separation pad assembly (2 of 2) ................................................................. 8
Figure 1-9 Remove the Tray 2 and Tray 3 separation rollers ....................................................................... 9
Figure 1-10 Remove the 1x500 or 3x500 rollers (1 of 2) ........................................................................ 10
Figure 1-11 Remove the 1x500 or 3x500 rollers (2 of 2) ........................................................................ 10
Figure 1-12 Remove the front cover (1 of 2) ........................................................................................... 11
Figure 1-13 Remove the front cover (2 of 2) ........................................................................................... 11
Figure 1-14 Remove the right rear cover ................................................................................................ 12
Figure 1-15 Remove the left door (1 of 2) .............................................................................................. 12
Figure 1-16 Remove the left door (2 of 2) .............................................................................................. 13
Figure 1-17 Remove the rear cover (1 of 2) ............................................................................................ 13
Figure 1-18 Remove the rear cover (2 of 2) ............................................................................................ 14
Figure 1-19 Remove the front left lower cover ......................................................................................... 15
Figure 1-20 Remove the front right lower cover ....................................................................................... 16
Figure 1-21 Remove the face-down cover .............................................................................................. 16
Figure 1-22 Remove the Tray 1 (multipurpose tray) cover (1 of 2) ............................................................. 17
Figure 1-23 Remove the Tray 1 (multipurpose tray) cover (2 of 2) ............................................................. 17
Figure 1-24 Remove the right door (1 of 3) ............................................................................................ 18
Figure 1-25 Remove the right door (2 of 3) ............................................................................................ 18
Figure 1-26 Remove the right door (3 of 3) ............................................................................................ 19
Figure 1-27 Remove the top cover (1 of 2) ............................................................................................. 19
Figure 1-28 Remove the top cover (2 of 2) ............................................................................................. 20
Figure 1-29 Remove the left handle cover .............................................................................................. 20
Figure 1-30 Remove the left inner lower cover ........................................................................................ 21
Figure 1-31 Remove the left inner rear cover (1 of 2) ............................................................................... 22
Figure 1-32 Remove the left inner rear cover (2 of 2) ............................................................................... 22
ENWW xiii
Figure 1-33 Remove the left inner front cover (1 of 2) .............................................................................. 23
Figure 1-34 Remove the left inner front cover (2 of 2) .............................................................................. 23
Figure 1-35 Remove the right handle cover ............................................................................................ 24
Figure 1-36 Remove the face-down side cover ........................................................................................ 25
Figure 1-37 Remove the top rear cover .................................................................................................. 26
Figure 1-38 Remove the left upper cover ................................................................................................ 27
Figure 1-39 Remove the left inner upper cover (1 of 2) ............................................................................ 28
Figure 1-40 Remove the left inner upper cover (2 of 2) ............................................................................ 28
Figure 1-41 Remove the face-down upper cover (1 of 2) .......................................................................... 29
Figure 1-42 Remove the face-down upper cover (2 of 2) .......................................................................... 29
Figure 1-43 Remove the duplexer (1 of 2) .............................................................................................. 31
Figure 1-44 Remove the duplexer (2 of 2) .............................................................................................. 31
Figure 1-45 Remove the duplex cover .................................................................................................... 32
Figure 1-46 Remove the fuser ............................................................................................................... 33
Figure 1-47 Remove the control panel (1 of 2) ........................................................................................ 33
Figure 1-48 Remove the control panel (2 of 2) ........................................................................................ 34
Figure 1-49 Remove the paper delivery assembly (1 of 2) ........................................................................ 34
Figure 1-50 Remove the paper delivery assembly (2 of 2) ........................................................................ 35
Figure 1-51 Static eliminators on the paper delivery assembly .................................................................. 35
Figure 1-52 Reinstall the paper delivery assembly (1 of 2) ....................................................................... 36
Figure 1-53 Reinstall the paper delivery assembly (2 of 2) ....................................................................... 36
Figure 1-54 Remove the registration assembly (1 of 2) ............................................................................ 37
Figure 1-55 Registration assembly left screw .......................................................................................... 38
Figure 1-56 Registration assembly right screw ........................................................................................ 38
Figure 1-57 Remove the registration assembly (2 of 2) ............................................................................ 39
Figure 1-58 Reinstalling the registration assembly ................................................................................... 39
Figure 1-59 Remove the transfer roller ................................................................................................... 40
Figure 1-60 Remove the paper feed assembly (1 of 4) ............................................................................. 41
Figure 1-61 Remove the paper feed assembly (2 of 4) ............................................................................. 41
Figure 1-62 Remove the paper feed assembly (3 of 4) ............................................................................. 42
Figure 1-63
Figure 1-64 Remove the paper feed assembly (4 of 4) ............................................................................. 43
Figure 1-65 Reinstall the paper feed assembly (1 of 2) ............................................................................ 43
Figure 1-66 Reinstall the paper feed assembly (2 of 2) ............................................................................ 44
Figure 1-67 Remove the laser scanner (1 of 3) ....................................................................................... 45
Figure 1-68 Remove the laser scanner (2 of 3) ....................................................................................... 45
Figure 1-69 Remove the laser scanner (3 of 3) ....................................................................................... 46
Figure 1-70 Remove the toner cartridge door (1 of 6) .............................................................................. 47
Figure 1-71 Remove the toner cartridge door (2 of 6) .............................................................................. 48
Figure 1-72 Remove the toner cartridge door (3 of 6) .............................................................................. 48
Figure 1-73 Remove the toner cartridge door (4 of 6) .............................................................................. 49
Reinstall the connector cover ............................................................................................... 42
xiv ENWW
Figure 1-74 Remove the toner cartridge door (5 of 6) .............................................................................. 49
Figure 1-75 Remove the toner cartridge door (6 of 6) .............................................................................. 50
Figure 1-76 Reinstall the cartridge door assembly (1 of 2) ....................................................................... 50
Figure 1-77 Reinstall the cartridge door assembly (2 of 2) ....................................................................... 51
Figure 1-78 Remove the formatter cage (1 of 2) ...................................................................................... 52
Figure 1-79 Remove the formatter cage (2 of 2) ...................................................................................... 52
Figure 1-80 Remove the upper cassette pickup assembly (1 of 4) .............................................................. 53
Figure 1-81 Remove the upper cassette pickup assembly (2 of 4) .............................................................. 54
Figure 1-82 Remove the upper cassette pickup assembly (3 of 4) .............................................................. 54
Figure 1-83 Remove the upper cassette pickup assembly (4 of 4) .............................................................. 55
Figure 1-84 Remove the lower cassette pickup assembly (1 of 3) .............................................................. 56
Figure 1-85 Remove the lower cassette pickup assembly (2 of 3) .............................................................. 57
Figure 1-86 Remove the lower cassette pickup assembly (3 of 3) .............................................................. 57
Figure 1-87 Remove the lifter driver assembly (1 of 2) ............................................................................. 58
Figure 1-88 Remove the lifter driver assembly (2 of 2) ............................................................................. 59
Figure 1-89 Remove the main drive assembly (1 of 7) ............................................................................. 60
Figure 1-90 Remove the main drive assembly (2 of 7) ............................................................................. 60
Figure 1-91 Remove the main drive assembly (3 of 7) ............................................................................. 61
Figure 1-92 Remove the main drive assembly (4 of 7) ............................................................................. 61
Figure 1-93 Remove the main drive assembly (5 of 7) ............................................................................. 62
Figure 1-94 Remove the main drive assembly (6 of 7) ............................................................................. 62
Figure 1-95 Remove the main drive assembly (7 of 7) ............................................................................. 63
Figure 1-96 Reinstall the main drive assembly ........................................................................................ 63
Figure 1-97 Remove the fuser drive assembly (1 of 3) .............................................................................. 64
Figure 1-98 Remove the fuser drive assembly (2 of 3) .............................................................................. 64
Figure 1-99 Remove the fuser drive assembly (3 of 3) .............................................................................. 65
Figure 1-100 Reinstall the fuser drive assembly (1 of 3) ........................................................................... 65
Figure 1-101 Reinstall the fuser drive assembly (2 of 3) ........................................................................... 66
Figure 1-102 Reinstall the fuser drive assembly (3 of 3) ........................................................................... 66
Figure 1-103 Switch locations .............................................................................................................. 67
Figure 1-104 Remove the power switch assembly ................................................................................... 68
Figure 1-105
Figure 1-106 Remove the left door interlock switch (2 of 4) ...................................................................... 69
Figure 1-107 Remove the left door interlock switch (3 of 4) ...................................................................... 70
Figure 1-108 Reinstall the left door lever ................................................................................................ 70
Figure 1-109 Remove the left door interlock switch (4 of 4) ...................................................................... 71
Figure 1-110 Remove the cartridge door interlock switch (1 of 4) ............................................................. 72
Figure 1-111 Remove the cartridge door interlock switch (2 of 4) ............................................................. 72
Figure 1-112 Remove the cartridge door interlock switch (3 of 4) ............................................................. 73
Figure 1-113 Remove the cartridge door interlock switch (4 of 4) ............................................................. 73
Figure 1-114 Remove the cartridge door open detection switch (1 of 3) .................................................... 74
Remove the left door interlock switch (1 of 4) ...................................................................... 69
ENWW xv
Figure 1-115 Remove the cartridge door open detection switch (2 of 3) .................................................... 74
Figure 1-116 Remove the cartridge door open detection switch (3 of 3) .................................................... 75
Figure 1-117 Remove the upper cassette media end switch ...................................................................... 75
Figure 1-118 Remove the lower cassette media end switch (1 of 3) ........................................................... 76
Figure 1-119 Remove the lower cassette media end switch (2 of 3) ........................................................... 76
Figure 1-120 Remove the lower cassette media end switch (3 of 3) ........................................................... 77
Figure 1-121 Sensor locations .............................................................................................................. 78
Figure 1-122 Remove the environment sensor ......................................................................................... 79
Figure 1-123 Remove the cartridge presence sensor ............................................................................... 80
Figure 1-124 Remove the right door sensor (1 of 4) ................................................................................ 81
Figure 1-125 Remove the right door sensor (2 of 4) ................................................................................ 81
Figure 1-126 Remove the right door sensor (3 of 4) ................................................................................ 82
Figure 1-127 Remove the right door sensor (4 of 4) ................................................................................ 82
Figure 1-128 Motor locations ............................................................................................................... 83
Figure 1-129 Fan locations .................................................................................................................. 84
Figure 1-130 Clutch locations ............................................................................................................... 84
Figure 1-131 Remove the fuser motor .................................................................................................... 85
Figure 1-132 Remove the rear fan (1 of 3) ............................................................................................. 85
Figure 1-133 Remove the rear fan (2 of 3) ............................................................................................. 86
Figure 1-134 Remove the rear fan (3 of 3) ............................................................................................. 87
Figure 1-135 Reinstall the rear fan ........................................................................................................ 87
Figure 1-136 Remove the front fan ........................................................................................................ 88
Figure 1-137 Reinstall the front fan ....................................................................................................... 88
Figure 1-138 Remove the fuser fan ........................................................................................................ 89
Figure 1-139 Reinstall the fuser fan ....................................................................................................... 89
Figure 1-140 Remove the upper cassette pickup assembly (1 of 4) ............................................................ 90
Figure 1-141 Remove the upper cassette pickup assembly (2 of 4) ............................................................ 91
Figure 1-142 Remove the lower cassette pickup assembly (1 of 3) ............................................................ 92
Figure 1-143 Remove the lower cassette pickup assembly (2 of 3) ............................................................ 92
Figure 1-144 Remove the formatter (1 of 2) ............................................................................................ 93
Figure 1-145 Remove the formatter (2 of 2) ............................................................................................ 93
Figure 1-146 Remove the high-voltage power supply assembly (1 of 5) ..................................................... 94
Figure 1-147 Remove the high-voltage power supply assembly (2 of 5) ..................................................... 94
Figure 1-148 Remove the high-voltage power supply assembly (3 of 5) ..................................................... 95
Figure 1-149 Remove the high-voltage power supply assembly (4 of 5) ..................................................... 95
Figure 1-150 Remove the high-voltage power supply assembly (5 of 5) ..................................................... 96
Figure 1-151 Remove the DC controller PCA .......................................................................................... 96
Figure 1-152 Remove the low-voltage power supply assembly (1 of 4) ...................................................... 97
Figure 1-153 Remove the low-voltage power supply assembly (2 of 4) ...................................................... 97
Figure 1-154 Remove the low-voltage power supply assembly (3 of 4) ...................................................... 98
Figure 1-155 Remove the low-voltage power supply assembly (4 of 4) ...................................................... 98
xvi ENWW
Figure 1-156 Remove the USB PCA ....................................................................................................... 99
Figure 1-157 Remove the hard drive (1 of 2) ........................................................................................ 100
Figure 1-158 Remove the hard drive (2 of 2) ........................................................................................ 100
Figure 1-159 Remove the 1x500 rear cover ......................................................................................... 101
Figure 1-160 Remove the 1x500 left cover (1 of 2) ............................................................................... 102
Figure 1-161 Remove the 1x500 left cover (2 of 2) ............................................................................... 102
Figure 1-162 Remove the 1x500 right-front cover ................................................................................. 104
Figure 1-163 Remove the 1x500 front-upper cover ............................................................................... 105
Figure 1-164 Remove the 1x500 right door (1 of 3) .............................................................................. 106
Figure 1-165 Remove the 1x500 right door (2 of 3) .............................................................................. 106
Figure 1-166 Remove the 1x500 right door (3 of 3) .............................................................................. 107
Figure 1-167 Remove the 1x500 right-lower cover ................................................................................ 108
Figure 1-168 Remove the 1x500 pickup assembly (1 of 4) .................................................................... 109
Figure 1-169 Remove the 1x500 pickup assembly (2 of 4) .................................................................... 109
Figure 1-170 Remove the 1x500 pickup assembly (3 of 4) .................................................................... 110
Figure 1-171 Remove the 1x500 pickup assembly (4 of 4) .................................................................... 110
Figure 1-172 Remove the 1x500 lifter-drive assembly (1 of 2) ................................................................ 112
Figure 1-173 Remove the 1x500 lifter-drive assembly (2 of 2) ................................................................ 112
Figure 1-174 Remove the 1x500 pickup motor ..................................................................................... 113
Figure 1-175 Remove the 1x500 driver PCA ........................................................................................ 114
Figure 1-176 Remove the paper deck right-door assembly (1 of 3) .......................................................... 115
Figure 1-177 Remove the paper deck right-door assembly (2 of 3) .......................................................... 115
Figure 1-178 Remove the paper deck right-door assembly (3 of 3) .......................................................... 116
Figure 1-179 Remove the paper deck left cover (1 of 2) ........................................................................ 117
Figure 1-180 Remove the paper deck left cover (2 of 2) ........................................................................ 117
Figure 1-181 Remove the paper deck pickup motor .............................................................................. 118
Figure 1-182 Remove the paper deck front-lower cover ......................................................................... 119
Figure 1-183 Remove the paper deck right-corner cover ........................................................................ 120
Figure 1-184 Remove the paper deck front-upper cover ......................................................................... 121
Figure 1-185 Remove the paper deck right-lower cover 1 ...................................................................... 122
Figure 1-186 Remove the paper deck right-lower cover 2 ...................................................................... 123
Figure 1-187
Figure 1-188 Remove the paper deck rear cover .................................................................................. 124
Figure 1-189 Remove the paper deck rear-lower cover .......................................................................... 125
Figure 1-190 Remove the paper deck controller PCA ............................................................................ 126
Figure 1-191 Remove the paper deck lifter-drive assembly (1 of 2) ......................................................... 127
Figure 1-192 Remove the paper deck lifter-drive assembly (2 of 2) ......................................................... 127
Figure 1-193 Remove the paper deck right and left cassette rails ............................................................ 128
Figure 1-194 Remove the paper deck pickup assembly (1 of 3) .............................................................. 129
Figure 1-195 Remove the paper deck pickup assembly (2 of 3) .............................................................. 130
Figure 1-196 Remove the paper deck pickup assembly (3 of 3) .............................................................. 130
Remove the paper deck left-lower cover ........................................................................... 124
ENWW xvii
Figure 1-197 Remove the HCI right tray ............................................................................................... 131
Figure 1-198 Remove the HCI left tray ................................................................................................. 132
Figure 1-199 Remove the HCI left cover (1 of 2) ................................................................................... 132
Figure 1-200 Remove the HCI left cover (2 of 2) ................................................................................... 133
Figure 1-201 Remove the HCI left lower cover ...................................................................................... 133
Figure 1-202 Remove the HCI rear cover ............................................................................................. 134
Figure 1-203 Remove the HCI right door ............................................................................................. 135
Figure 1-204 HCI right door link detail ................................................................................................ 135
Figure 1-205 Remove the HCI right front cover (1 of 2) ......................................................................... 136
Figure 1-206 Remove the HCI right front cover (2 of 2) ......................................................................... 136
Figure 1-207 Remove the HCI right center cover and right rear cover (1 of 2) .......................................... 137
Figure 1-208 Remove the HCI right center cover and right rear cover (2 of 2) .......................................... 137
Figure 1-209 Remove the HCI right lower cover ................................................................................... 138
Figure 1-210 Remove the HCI rear lower cover .................................................................................... 139
Figure 1-211 Remove the HCI left tray lifter drive .................................................................................. 139
Figure 1-212 Remove the HCI right tray lifter drive ................................................................................ 140
Figure 1-213 Remove the HCI left tray pickup drive (1 of 2) ................................................................... 141
Figure 1-214 Remove the HCI left tray pickup drive (2 of 2) ................................................................... 141
Figure 1-215 Remove the HCI right tray pickup drive (1 of 2) ................................................................. 142
Figure 1-216 Remove the HCI right tray pickup drive (2 of 2) ................................................................. 142
Figure 1-217 Remove the HCI controller PCA ....................................................................................... 143
Figure 1-218 Remove the HCI left tray automatic close assembly (1 of 2) ................................................. 143
Figure 1-219 Remove the HCI left tray automatic close assembly (2 of 2) ................................................. 144
Figure 1-220 Remove the HCI right tray automatic close assembly (1 of 2) .............................................. 145
Figure 1-221 Remove the HCI right tray automatic close assembly (2 of 2) .............................................. 145
Figure 1-222 Remove the HCI left tray pickup assembly (1 of 2) ............................................................. 146
Figure 1-223 Remove the HCI left tray pickup assembly (2 of 2) ............................................................. 146
Figure 1-224 Remove the HCI right tray pickup assembly (1 of 2) ........................................................... 147
Figure 1-225 Remove the HCI right tray pickup assembly (2 of 2) ........................................................... 148
Figure 1-226 Remove the HCI merge assembly (1 of 2) ......................................................................... 149
Figure 1-227 Remove the HCI merge assembly (2 of 2) ......................................................................... 149
Figure 2-1 Base product (no optional trays or accessories) ..................................................................... 156
Figure 2-2 Optional 500-sheet paper feeder (accessory) ........................................................................ 157
Figure 2-3 Optional 1x500-sheet paper deck (accessory) ...................................................................... 158
Figure 2-4 Optional 3x500-sheet paper deck (accessory) ...................................................................... 159
Figure 2-5 Duplexer .......................................................................................................................... 160
Figure 2-6 Duplexer .......................................................................................................................... 161
Figure 2-7 External covers and panels ................................................................................................. 162
Figure 2-8 Internal components (1 of 4) ............................................................................................... 164
Figure 2-9 Internal components (2 of 4) ............................................................................................... 166
Figure 2-10 Internal components (3 of 4) ............................................................................................. 168
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Figure 2-11 Internal components (4 of 4) ............................................................................................. 170
Figure 2-12 500-sheet paper feeder (Tray 4) covers .............................................................................. 172
Figure 2-13 500-sheet paper feeder (Tray 4) components ...................................................................... 174
Figure 2-14 1x500 and 3x500 paper deck covers ............................................................................... 176
Figure 2-15 1x500 paper deck components ........................................................................................ 178
Figure 2-16 3x500 paper deck components ........................................................................................ 180
Figure 2-17 HCI covers ..................................................................................................................... 182
Figure 2-18 HCI components (1 of 2) .................................................................................................. 184
Figure 2-19 HCI components (2 of 2) .................................................................................................. 186
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1 Removal and replacement
Removal and replacement strategy
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Pickup rollers
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Separation pads and rollers
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Covers and doors
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Main assemblies
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Switches
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Sensors
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Motors, fans, and clutches
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Printed circuit-board assemblies (PCAs)
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Miscellaneous parts
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Trays
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Input devices
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Removal and replacement strategy
Introduction
This chapter describes the removal and replacement of field-replaceable units (FRUs) only.
Replacing FRUs is generally the reverse of removal. Notes are included to provide directions for difficult
or critical replacement procedures.
HP does not support repairing individual subassemblies or troubleshooting to the component level.
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:
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. If an ESD
workstation or mat is not available, ground yourself by touching the sheet-metal chassis before touching
an ESD-sensitive part.
Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation.
NOTE: To install a self-tapping screw, first turn it counterclockwise to align it with the existing 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.
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Required tools
#2 Phillips screwdriver with a magnetic tip and a 152-mm (6-in) shaft length
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NOTE: For the best fit, use a JIS #2 Phillips screwdriver for the stapler/stacker.
Small, flat-blade screwdriver
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Needle-nose pliers
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ESD strap (if one is available)
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Penlight
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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 Screwdrivers
Types of screws
WARNING! Make sure that components are replaced with the correct screw type. Using the
incorrect screw (for example, substituting a long screw for the correct shorter screw) can cause damage
to the product or interfere with product operation. Do not intermix screws that are removed from one
component with the screws that are removed from another component.
For a complete list of screw types and part numbers, see the Parts chapter.
Service approach
The HP LaserJet Enterprise 700 M712 use a field repair strategy. Defective parts are diagnosed and
replaced at the Field Replaceable Unit (FRU) assembly level. 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 troubleshooting chapter.
After you locate a faulty part, the product can usually be repaired at the assembly level by replacing
FRUs. Some mechanical assemblies might need to be repaired at the subassembly level. HewlettPackard Company does not support replacement of components on the printed circuit assembles.
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Removal and replacement strategy
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Before performing service
WARNING! Turn the product off, wait 5 seconds, and then remove the power cord before
attempting to service the product. If this warning is not followed, severe injury and damage to the
product can result. The power must be on for certain functional checks during troubleshooting.
However, the power supply should be disconnected during parts removal.
1. Remove all paper.
2. Place the product on an ESD mat (if available). If an ESD workstation or mat is not available,
ground yourself by touching the sheet-metal chassis before touching an ESD-sensitive part.
3. Remove the toner cartridge.
4. Remove the trays.
After performing service
1. Reinstall the toner cartridge.
2. Reinstall the trays.
3. Return all paper to the trays.
4. Plug in the power cable and turn on the product.
Parts removal order
If multiple components must be removed to gain access to an assembly, the first step of the removal
procedure lists all of the components that must be removed to gain access to that assembly. Use these
lists to determine which parts must be removed before removing other parts.
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Pickup rollers
The user replaces toner cartridges when they reach the end of life. Additional instructions about other
user-replaceable parts are provided in this section.
The product tracks the amount of use on the customer-replaceable supplies by keeping a page count.
The product prompts the user to replace certain items when a supply is depleted or a specific number of
pages has been printed.
Swapping toner cartridges between products might cause a misrepresentation of supply life values and
is not recommended.
Tray 1 (multipurpose tray) pickup roller
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Tray 2 and Tray 3 pickup rollers
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Tray 4, Tray 5, and Tray 6 pickup and feed rollers
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Tray 1 (multipurpose tray) pickup roller
1. Open the toner cartridge door.
2. Push out on the pickup roller holder tabs (callout 1), and remove the pickup roller (callout 2).
Figure 1-2 Remove the Tray 1 (multipurpose tray) pickup roller
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Pickup rollers
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Tray 2 and Tray 3 pickup rollers
NOTE: The same removal procedures apply to the Tray 2 pickup roller and Tray 3 pickup roller.
1. Remove the trays.
2. From the front of the product, on the right side of the tray cavity, rotate the stopper (callout 1)
down.
Figure 1-3 Remove the Tray 2 and Tray 3 pickup rollers (1 of 2)
1
3. Push the pickup roller (callout 1) in the direction that the arrow indicates and remove it.
Figure 1-4 Remove the Tray 2 and Tray 3 pickup rollers (2 of 2)
1
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Tray 4, Tray 5, and Tray 6 pickup and feed rollers
NOTE: The same removal procedures apply to the 1x500-sheet tray, the 1x500-sheet tray stand, and
the 3x500-sheet tray stand.
1. Remove the tray from the product, and then locate the rollers on the right-hand side of the tray
cavity.
Figure 1-5 Remove the 1x500 or 3x500 rollers (1 of 2)
2. Release three tabs, and then pull the rollers in the direction of the arrow.
Figure 1-6 Remove the 1x500 or 3x500 rollers (2 of 2)
Reinstallation tip When you reinstall the rollers, make sure that the rollers snap into place.
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Separation pads and rollers
Tray 1 separation pad assembly
1. Open Tray 1.
2. Release two hinge pins (callout 1) on the Tray 1 cover assembly.
Figure 1-7 Remove the Tray 1 separation pad assembly (1 of 2)
1
3. Remove one screw (callout 1), and then remove the separation pad assembly (callout 2).
Figure 1-8 Remove the Tray 1 separation pad assembly (2 of 2)
2
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