HP LASERJET 9065 User Manual Page 167
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ENWW Corona unit 159
MFP disassembly/assembly
Corona unit
Screws that must not be removed
Five screws securing the transfer
entrance guide plate
CAUTION Do not strain the transfer
entrance guide plate and
guide rollers, for example,
pressing down on them
strongly.
Take care not to damage
the edge of the transfer
entrance guide plate since
it is deformed easily.
Removing and reinstalling the
charging corona unit
CAUTION Be sure the power cord has
been unplugged from the
wall outlet.
When removing the
charging corona unit, do
not touch the mesh of the
charging corona unit
control plate.
Procedure
1 Remove the drum unit from the MFP. See
“Drum unit” on page 152.
2 Disconnect the two connectors (CN364,
365). Remove the charging corona unit by
holding it at the positions shown below
with both hands.
3 Reinstall the above parts following the
removal steps in reverse.
Transfer entrance guide plate
Screws that must not be removed
Charging corona unit
Connector (CN365)
Connector
(CN364)
- LaserJet 9055 mfp 1
- LaserJet 9065 mfp 1
- Copyright Information 4
- Trademark Credits 4
- 5 MFP disassembly/assembly 6
- 6 Product comparison 8
- A Environmental Product 8
- B Terminology cross-reference 8
- 1How to use this 9
- Manual contents 10
- Manual organization 10
- Important notices 12
- Safety warnings 13
- WARNING: Prohibited actions 14
- Power supply 15
- WARNING: Wiring 16
- WARNING: Power plug and cord 16
- WARNING: Ground lead 17
- ° C to 30° C (50° F to 86° F) 18
- CAUTION: Vibration 19
- CAUTION: Ventilation 19
- WARNING: Safety checkpoints 20
- Conclusion 23
- Regulatory statements 24
- Safety information 24
- Overall protection circuit 25
- Protection by software 25
- Safety labels on the MFPs 27
- (Finisher with Cover 28
- Sheet Feeder only) 28
- (Punch Kit) 28
- (Q3634A Finisher) 28
- (Q3634A Finisher only) 28
- Laser/scanner assembly 29
- Rear cover 29
- 22 Safety ENWW 30
- 3MFP overview 31
- Overview of system 32
- Applicable copy paper 34
- Particulars of machine 34
- Maintenance and life 34
- Environmental conditions 34
- Central cross-sectional view 35
- Drum drive section 37
- Developing drive section 37
- 30 MFP overview ENWW 38
- Drive system diagram 31 39
- MFP overview 39
- [Charging corona unit] 40
- Charging cleaning motor (M14) 40
- Drive system diagram 33 41
- Paper exit motor (M7) 42
- Exit conveyance roller 42
- Optics drive section 43
- 36 MFP overview ENWW 44
- 4MFP unit explanation 45
- MFP unit explanation 47
- Drive section 49
- M2 (drum) control 50
- M4 (fuser) control 50
- ENWW Drive section 43 51
- Platen APS 53
- ENWW Scanner section 47 55
- Exposure control 56
- Original read control 56
- APS control 57
- AE control 59
- M15 (polygon) control 61
- Image write control 61
- ENWW Laser scanner unit 55 63
- Separation claw control 65
- Paper guide plate control 65
- Corona unit section 66
- Transfer/separation control 67
- M10 (transfer/separation 69
- PCL/TSL control 70
- Developing bias control 72
- ENWW Developing unit 65 73
- Gradation correction control 75
- Toner density control 77
- Toner level detection control 79
- M12 (toner supply) control 80
- Other control 82
- Tray 2/3 paper feed unit 83
- Coupling gear 84
- [Main body side] 84
- Coupling 84
- [Tray side] 84
- Paper up drive control 87
- Paper size detection control 88
- Tray 4 paper feed unit 90
- Paper size VR gear 91
- Rack gear 91
- Side guide (front) 91
- Paper up/down plate 97
- Up/down motor/BP 97
- Paper size VR/BP (VR5) 98
- Paper size PS/2-BP (PS32) 98
- Paper size PS/1-BP (PS31) 98
- By-pass tray 98
- No paper detection control 100
- Composition 101
- Mechanisms 101
- Vertical conveyance control 101
- Automatic duplex unit (ADU) 103
- Conveyance suction fan (FM3) 106
- Suction holes 106
- Conveyance 106
- Paper type Linear speed 108
- Thick paper 185 mm/s 108
- Others 280 mm/s (9055) 108
- 320 mm/s (9065) 108
- Paper conveyance control 111
- 104 MFP unit explanation ENWW 112
- 108 MFP unit explanation ENWW 116
- Fuser unit 119
- Actuator 120
- Exit guide plate (lower) 120
- Jam detection 120
- plate 120
- Fixing exit PS (PS30) 120
- M16 (web drive) control 121
- Fuser temperature control 122
- ENWW Fuser unit 115 123
- Other kinds of control 124
- Cooling fan control 126
- Developing suction fan 128
- Control panel control 130
- Counter control 132
- Option control 134
- 128 MFP unit explanation ENWW 136
- MFP disassembly/assembly 137
- 130 ENWW 138
- Ozone filter cover 140
- Procedure 141
- ENWW External section 135 143
- Changing the control panel 144
- Resetting the circuit breaker 145
- Screws (3) 146
- Screws (2) 146
- Image control board (ICB) 146
- Flywheels (2) 147
- Scanner section 149
- Replacing the exposure lamp 150
- Exposure lamp 151
- Connector 151
- Installation procedure 152
- Installing the optics wire 153
- Cleaning the ADF glass and 155
- Scanner Belt 156
- Spring scale 157
- Upper hole 157
- Laser scanner unit 158
- Cleaning the dust-proof glass 159
- Drum cover 160
- ADU rack pullout lever 160
- Solenoid release lever 160
- ENWW Drum unit 153 161
- Installing the coupling 162
- Drum coupling 162
- Flange section 162
- Drum shaft coupling 162
- Removing, cleaning, and 163
- Connector (CN363) 164
- Separation swing spring 164
- Guide hole 165
- Drum unit 165
- Connector (CN362) 166
- Corona unit 167
- Charge control plate 168
- Spark arrester plate (front) 168
- Spark arrester plate (rear) 168
- Charging wire 169
- Charge control plate cleaner 169
- Charging 169
- Charging wire cleaning pad 170
- ENWW Corona unit 165 173
- Developing unit 174
- Toner supply pipe 175
- Developing unit push 175
- Toner supply door 177
- Toner supply unit 177
- Cleaning/toner recycle unit 178
- Cleaning blade 179
- Blade support bearing 179
- Paper feed units of Trays 2 181
- Replacing the wires 184
- Wire lengths 186
- Installing wires 186
- Paper feed unit of Tray 3 187
- By-pass feed tray 193
- Connector (CN214) 193
- Bottom plate 194
- Spring hole 194
- Vertical conveyance section 195
- ADU stand 196
- Left door 196
- Right door 196
- ADU stand drawing lever 196
- Paper dust removing brush 197
- Cleaning area 197
- (registration assembly) 199
- Registration PS (PS44) 200
- Reverse/Exit PS (PS46) 203
- Automatic document feeder 205
- Open/close wire 205
- ADF reverse roller 206
- ADU conveyance roller 3 and 4 210
- Screws(3) 211
- ADU conveyance roller 1 and 2 213
- Replacing the fusing heater 218
- Faston terminals (2) 219
- Lamp fixing plate (rear) 219
- Removal procedure 225
- Reinstallation procedure 225
- Fixing temperature 226
- sensor 1 226
- Fixing upper roller 226
- Thermostat/U 227
- 6Product comparison 231
- 224 Product comparison ENWW 232
- AEnvironmental 233
- Environmental Product 234
- Stewardship Program 234
- BTerminology 235
- Terminology cross-reference 237
- Index 233 241
- 234 Index ENWW 242
- Index 235 243
- 236 Index ENWW 244
- (Q3644A) 245
- Contents 247
- 1ADF overview 249
- Functions 250
- Machine data 250
- Maintenance 251
- Operating environment 251
- 4 ADF overview ENWW 252
- Drive system diagram 253
- Original conveyance process 254
- Next original 255
- Original exit reversal 255
- Reversal roller 255
- Reverse gate 255
- Mixed original copy mode 256
- Z-fold original copy mode 256
- 2ADF unit explanation 257
- External section 258
- Mechanism 259
- Original exit gate 260
- Exit gate drive SD 260
- ADF disassembly/assembly 269
- ScrewsScrews 270
- Stopper1 Stopper2 270
- Cable conduit 271
- Screws(4) 271
- Reinstalling the ADF 272
- Stopper piece Stopper piece 273
- Screws(2) 273
- Top cover 273
- Cleaning pad 275
- Registration idler 275
- Jam access cover 275
- (A4/Letter - Q3637A) 279
- (A3/Ledger - Q3638A) 279
- 1HCI overview 283
- HCI overview 285
- Drive system drawing 286
- Up/down plate 287
- LT up/down motor 287
- Up/down shaft 287
- 2HCI unit explanation 289
- Paper feed section 290
- ENWW Paper feed section 9 291
- First paper feed control 292
- ENWW Paper feed section 11 293
- Up/down plate drive control 294
- Remaining paper detection/no 295
- HCI disassembly/assembly 297
- Explanation 298
- Cleaning the HCI feed PS 299
- Paper feed reference actuator 300
- ENWW Paper feed section 19 301
- Replacing the Q3637A up/down 303
- Removing the up/down wires 305
- Installing the up/down wires 306
- Replacing the Q3638A up/down 307
- ENWW Paper feed section 27 309
- 32 Index ENWW 314
- (Q3634A) 315
- 1Finisher overview 319
- Amount of curl 321
- Paper (5 sheets) 321
- Height of folding 321
- Cross section diagram 324
- Stacker drive 326
- Staple drive 327
- Tray drive 328
- Folding drive 329
- Paper conveyance path 330
- Main tray 331
- Paper exit roller 331
- Entrance roller 331
- Conveyance roller/A 331
- Sort and group modes 332
- Sub-tray mode 333
- Staple mode 334
- ENWW Paper conveyance path 17 335
- Booklet mode 336
- Tri-folding mode 337
- 20 Finisher overview ENWW 338
- 2Finisher unit 339
- External section 23 341
- Finisher unit explanation 341
- Conveyance section 342
- ENWW Conveyance section 25 343
- (shift) paper exit 344
- ENWW Conveyance section 27 345
- M701 (finisher conveyance) 346
- M712 (gate drive) control 347
- SD705 (bypass gate) control 347
- M702 (shift) control 348
- ENWW Conveyance section 31 349
- SD704 (paper exit opening 351
- M721 (upper-tray paper exit) 352
- ENWW Conveyance section 35 353
- Main tray section 354
- M703 (tray up/down) control 355
- Stacker section 357
- ENWW Stacker section 41 359
- M705 (alignment/U) control 360
- ENWW Stacker section 43 361
- ENWW Stacker section 45 363
- ENWW Stacker section 47 365
- Stapler section 366
- Stapler movement control 369
- Staple control 371
- ENWW Stapler section 55 373
- M719 (folding knife) control 376
- 3Finisher 379
- Side cover 381
- (Q3634A only) 384
- Replacing the intermediate 386
- ENWW Conveyance section 69 387
- Up/down pulley/L 389
- Up/down wire 389
- ENWW Main tray section 73 391
- ENWW Stacker section 75 393
- ENWW Stapler section 77 395
- Clincher/R 396
- Ball bearing mounting bracket 396
- Bearing spring 396
- ENWW Stapler section 79 397
- 1Post insertion 405
- 5 sheets 406
- Center cross section 407
- Tray up/down motor/U (M201) 408
- Tray up/down motor/L (M202) 408
- Feeding process 409
- 2Post insertion unit 411
- Paper feed unit 413
- Feed control 414
- ENWW Paper feed unit 11 415
- ENWW Paper feed unit 13 417
- ENWW Paper feed unit 15 419
- 3Post insertion 421
- Release lever 423
- Replacing the double feed 424
- Q3690A, Q3691A) 427
- 1Punch kit overview 431
- Applicable paper 432
- Punch kit data 433
- Center cross-sectional view 434
- Punching process 436
- (Main body) 437
- Punching process 9 439
- Punch kit overview 439
- 10 Punch kit overview ENWW 440
- 2Punch kit unit 441
- Punch section 442
- Punch control 443
- Paper edge sensor 444
- Direction of paper 444
- ENWW Punch section 15 445
- Punch scraps full PS (PS802) 446
- Punch unit 446
- Punch scraps box 446
- PKDBFNS CB 447
- 3Punch kit 449
- Punch drive board cover 451
- Punch edges 452
- 24 Index ENWW 454
- *Q3631-90908* 456
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