Print
Download
PAGE
OF
646
Go
1
2
3
4
5
6
7
Table of Contents
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Theory of operation
38
Basic operation
39
Sequence of operation
40
Engine control system
41
DC controller
42
43
44
45
46
High voltage power supply
47
48
Low voltage power supply
49
50
Overcurrent/overvoltage protection
51
Power off condition
52
Fuser temperature control circuit
53
Fuser over temperature protection
54
Fuser failure detection
55
Laser/scanner system
56
57
Image formation system
58
Image formation process
59
Step 1: Pre-exposure
60
Step 3: Laser-beam exposure
61
Step 5: Primary transfer
62
Step 7: Separation
63
Step 9: ITB cleaning
64
65
Developing roller engagement and disengagement
66
67
Intermediate transfer belt (ITB) unit
68
Primary-transfer-roller engagement and disengagement
69
70
71
ITB cleaning
72
Calibration
73
Image stabilization control
74
Pickup, feed, and delivery system
75
76
77
78
Pickup-and-feed unit
79
Cassette pickup
80
Cassette presence detection
81
Cassette lift operation
82
Cassette paper presence detection
83
Cassette media width detection
84
Multifeed prevention
85
Multipurpose tray pickup
86
87
Skew-feed prevention
88
OHT detection
89
Loop control
90
Pressure-roller pressurization control
91
Duplexing unit (duplex models)
92
Duplexing reverse and feed control
93
Jam detection
94
95
Optional paper feeder
96
97
Paper-feeder pickup and feed operation
98
Paper size detection and cassette presence detection
99
100
Paper feeder cassette lift operation
101
102
Paper feeder presence detection
103
Paper-feeder multiple feed prevention
104
Paper feeder jam detection
105
Removal and replacement
106
Introduction
107
Electrostatic discharge
108
Required tools
109
Service approach
110
Parts removal order
111
112
Customer self repair (CSR) components
113
114
Duplex reverse guide
115
Toner collection unit
116
117
Formatter PCA
118
Disk drives
119
120
Remove the SSM
121
Install a replacement hard drive
122
Tray cassette
123
124
Pickup roller (Tray 1)
125
Pickup roller (Tray 2)
126
127
Pickup and feed rollers (Tray 3)
128
129
Separation roller (Tray 2)
130
Secondary transfer roller
131
Reinstall the transfer roller
132
Secondary transfer assembly
133
Reinstall the secondary transfer assembly
134
Intermediate transfer belt (ITB)
135
136
Right door (optional paper feeder)
137
138
139
Front door assembly
140
141
Right door assembly
142
143
144
145
Right rear cover
146
147
148
149
Left bottom cover
150
Left bottom handle
151
Hardware integration pocket (HIP) (dn and xh models only)
152
Control panel assembly
153
154
Right front cover
155
156
157
Reinstall the power button
158
Front top cover
159
160
Rear cover and upper rear cover
161
162
163
Rear top cover
164
165
Right bottom handle
166
Rear bottom handle
167
Internal assemblies
168
169
170
171
172
Toner collection sensor
173
174
Residual toner feed motor
175
176
177
178
Reinstall the residual toner collection door
179
Registration density (RD) sensor assembly
180
181
182
183
Power supply fan and fan duct
184
185
186
Registration assembly
187
188
189
190
191
Lower pickup guide
192
193
Reinstall the lower pickup guide
194
Interconnect board (ICB)
195
196
DC controller PCA and tray
197
198
199
Low voltage power supply
200
201
202
203
High voltage power supply lower (HVPS-D)
204
205
Reinstall the high voltage power supply lower
206
Developing disengagement motor
207
208
Pickup motor
209
Lifter drive assembly
210
211
Automatic close assembly
212
Cassette pickup drive assembly
213
214
215
216
217
Reinstall the cassette pickup drive assembly
218
219
Cassette pickup assembly
220
Remove the cassette pickup assembly
221
222
Laser/scanner assembly (Y/M)
223
224
225
226
227
228
229
Laser/scanner assembly (C/Bk)
230
Remove the laser/scanner assembly (C/Bk)
231
232
233
234
Reinstall the protective glass cleaner (PGC) actuators
235
236
237
High voltage power supply upper (HVPS-T)
238
Remove the high voltage power supply upper
239
240
241
Reinstall the high voltage power supply upper
242
Drum motor 1
243
Remove the drum motor 1
244
Drum motor 2 or drum motor 3
245
Remove the drum motor 2 or drum motor 3
246
Fuser motor
247
Remove the fuser motor
248
Main drive assembly
249
Remove the main drive assembly
250
251
252
253
Reinstall the main drive assembly
254
255
256
257
258
259
Fuser drive assembly
260
Remove the fuser drive assembly
261
262
263
Reinstall the fuser drive assembly
264
Delivery assembly
265
Remove the delivery assembly
266
267
268
Reinstall the delivery assembly
269
Duplex drive assembly
270
Remove the duplex drive assembly
271
Optional paper feeder assembly (Tray 3)
272
273
Solve problems
274
Solve problems checklist
275
276
277
Current settings pages
278
Preboot menu options
279
Troubleshooting process
280
Power subsystem
281
282
Tools for troubleshooting
283
Heartbeat LED, product initialization
284
285
Connectivity LED, product operating
286
Connectivity LED
287
288
Connectivity LED, product operating
289
HP Jetdirect LEDs
290
Engine diagnostics
291
292
Disable cartridge check
293
Engine test button
294
Paper path test
295
296
Manual sensor test
297
Registration sensor
298
Fuser loop sensors
299
Fuser output sensor
300
Duplexer refeed sensor
301
Output-bin full sensor
302
Fuser pressure-release sensor
303
ITB alienation sensor
304
305
Right- and front-door interlock switches
306
307
Tray/bin manual sensor test
308
Tray 1 paper sensor
309
Tray 2 paper sensor
310
Tray 2 cassette sensor
311
Tray 2 cassette lifter sensor
312
Tray 3 empty sensor
313
Tray 3 media feed sensor
314
Tray 3 stack surface sensor
315
Tray 3 media size sensors
316
Component tests
317
318
319
320
Location of connectors
321
Paper feeder driver PCA
322
Plug/jack locations
323
324
325
326
327
328
329
1 x 500 paper feeder
330
General timing chart
331
Circuit diagrams
332
333
Internal print-quality test pages
334
335
336
Print quality assessment page
337
338
Cleaning page
339
Configuration page
340
341
HP embedded Jetdirect page
342
Finding important information on the configuration pages
343
Color band test
344
Print quality troubleshooting tools
345
Calibrate the product
346
Control panel menus
347
Retrieve Job From USB menu
348
Retrieve Job From Device Memory menu
349
350
351
352
Supplies menu
353
354
355
356
357
358
359
360
361
362
363
364
365
Administration menu
366
367
General Settings menu
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
Retrieve From USB Settings menu
386
387
388
Default Print Options menu
389
390
391
Display Settings menu
392
Manage Supplies menu
393
394
395
396
397
398
399
Manage Trays menu
400
401
Network Settings menu
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
Troubleshooting menu
419
420
421
422
423
424
Device Maintenance menu
425
426
427
USB Firmware Upgrade menu
428
Interpret control panel messages, status-alert messages, and event code errors
429
430
431
10.XX.34 Used supply in use
432
10.XX.41 Unsupported supply in use
433
10.YY.15 Install u0026lt;supplyu0026gt;
434
10.YY.35 Incompatible u0026lt;supplyu0026gt;
435
11.00.YY Internal clock error
436
437
438
13.WX.YZ Fuser area jam
439
13.WX.YZ Fuser wrap jam
440
13.WX.YZ Jam below control panel
441
13.WX.YZ Jam in right door
442
13.WX.YZ Jam in Tray u0026lt;Xu0026gt;
443
444
445
446
447
448
449
41.03.YZ Unexpected size in tray u0026lt;Xu0026gt;
450
451
41.07.YZ Error To continue, press OK
452
453
454
455
456
49.XX.YY To continue, turn off then on
457
50.WX.YZ Fuser error To continue, turn off then on
458
459
460
51.00.YY Error
461
54.XX.YY Error
462
463
55.00.YY DC controller error To continue, turn off then on
464
57.00.0Y Error To continue, turn off then on
465
59.00.YY Error To continue, turn off then on
466
60.00.0Y Tray u0026lt;Yu0026gt; lifting error
467
468
81.0X.YY Embedded JetDirect error
469
98.00.02 Corrupt data in solutions volume
470
99.00.02 Upgrade not performed timeout during receive
471
99.00.06 Upgrade not performed error reading upgrade
472
99.00.10 Upgrade canceled by user
473
99.00.14 Upgrade not performed the file is invalid
474
99.09.60 Unsupported disk
475
99.09.65 Disk data error
476
477
u0026lt;Supplyu0026gt; very low OR Supplies very low
478
u0026lt;Tray Xu0026gt; lifting
479
[File System] is not initialized
480
Calibration reset pending
481
Chosen personality not available To continue, press OK
482
Close front door
483
Data received To print last page, press OK
484
Incompatible u0026lt;supplyu0026gt;
485
Install u0026lt;supplyu0026gt;
486
Install supplies
487
Internal disk spinning up
488
Manually feed output stack Then press OK to print second sides
489
Moving solenoid and motor
490
Please wait...
491
Printing Engine Test...
492
Printing Help Page...
493
Printing Supplies Status Page...
494
Processing... copy u0026lt;Xu0026gt; of u0026lt;Yu0026gt;
495
Remove shipping lock from Tray 2
496
Replace Supplies
497
Restore Factory Settings
498
Size mismatch in Tray u0026lt;Xu0026gt;
499
Tray u0026lt;Xu0026gt; empty: [Type], [Size]
500
Tray u0026lt;Xu0026gt; overfilled
501
Unsupported supply in use OR Unsupported supply installed To continue, press OK
502
USB accessory needs too much power Remove USB and turn off then on
503
Wrong cartridge in u0026lt;coloru0026gt; slot
504
Event log messages
505
Print an event log
506
View an event log
507
508
Jam locations
509
Clear jams in Tray 1
510
511
Clear jams in the output bin area
512
Clear jams in Tray 2
513
Clear jams in the right door
514
515
516
517
Clear jams in the optional 500-sheet paper and heavy media tray (Tray 3)
518
Clear jams in the lower right door (Tray 3)
519
Jam causes and solutions
520
521
522
523
Jams in the duplex area (duplex models)
524
Jams in Tray 1, Tray 2 and internal paper path
525
526
Jams in Tray 3
527
Change jam recovery
528
Solve paper handling problems
529
530
Use manual print modes
531
532
533
Solve image quality problems
534
535
536
537
538
539
Clean the product
540
Solve performance problems
541
Solve connectivity problems
542
543
Service mode functions
544
545
Product resets
546
Product cold reset
547
Partial Clean
548
549
550
Preboot menu options
551
552
553
554
555
556
557
Product updates
558
USB storage device (Preboot menu)
559
USB storage device (control-panel menu)
560
561
Parts and diagrams
562
Order parts, accessories, and supplies
563
Part numbers
564
Customer self repair (CSR) and service kits
565
566
567
568
569
570
Right-door assembly
571
572
Internal assemblies
573
574
Internal assemblies (2 of 5)
575
576
Internal assemblies (3 of 5)
577
578
Internal assemblies (4 of 5)
579
580
Internal assemblies (5 of 5)
581
582
583
584
Paper pickup assembly
585
586
587
588
Assessories
589
590
Paper feeder covers
591
592
Paper feeder main body
593
594
Paper feeder cassette
595
596
Paper feeder PCA
597
598
Alphabetical parts list
599
600
601
602
603
604
Numerical parts list
605
606
607
608
609
610
611
Service and support
612
Hewlett-Packard limited warranty statement
613
614
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement
615
Color LaserJet Fuser Kit, Toner Collection Unit, and Transfer Kit Limited Warranty Statement
616
Data stored on the print cartridge
617
End User License Agreement
618
619
620
621
Customer self-repair warranty service
622
Customer support
623
Product specifications
624
Physical specifications
625
Regulatory information
626
FCC regulations
627
Environmental product stewardship program
628
Return and recycling instructions
629
Residents of Alaska and Hawaii
630
Disposal of waste equipment by users in private households in the European Union
631
Declaration of conformity
632
633
Certificate of volatility
634
Safety statements
635
EMC statement (Korea)
636
GS statement (Germany)
637
638
639
640
641
642
643
644
645
646
Home
> HP > M551n
HP M551n Service Manual - Page 1
Document Details: 646 pages, 26.79 MB filesize.
LASERJET ENTERPRISE 500 COLOR
Service Manual
M551n
M551dn M551xh
« Prev
Next »
1
2
3
4
5
6
7
...
646
Terms of Use
|
Privacy Policy
|
DMCA Policy
2006-2023 Ready to Serve Manuals
