Download Print this page
   
1
2
3
4
Table of Contents
5
6
7
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876

Advertisement

Advertisement

Troubleshooting

   Also See for HP Color LaserJet CM4730 - Multifunction Printer

   Related Manuals for HP Color LaserJet CM4730 - Multifunction Printer

   Summary of Contents for HP Color LaserJet CM4730 - Multifunction Printer

  • Page 1

    HP Color LaserJet CM4730 MFP Service Manual...

  • Page 3

    HP Color LaserJet CM4730 MFP Service Manual...

  • Page 4

    Copyright and License Trademark Credits © 2007 Copyright Hewlett-Packard Adobe®, Photoshop®, and PostScript are Development Company, L.P. trademarks of Adobe Systems Incorporated. Reproduction, adaptation, or translation Corel®, CorelDRAW™, and the Corel logo without prior written permission is are trademarks or registered trademarks of...

  • Page 5: Table Of Contents

    Table of contents 1 Product information Product comparison ..........................2 HP Color LaserJet CM4730 MFP ..................2 HP Color LaserJet CM4730f MFP ..................3 HP Color LaserJet CM4730fsk MFP ..................3 HP Color LaserJet CM4730fm MFP ..................4 Product features ............................ 5 Product walkaround ..........................

  • Page 6: Table Of Contents

    Connecting the fax accessory to a phone line ........40 Configuring and using the fax features ..........41 Digital faxing ....................... 41 Printer software ............................ 42 Software for Windows ......................42 Supported Windows versions ................42 Install the printing-system software ..............42 Install Windows printing-system software for direct connections (USB or parallel) ................

  • Page 7: Table Of Contents

    Using the FIH ..................... 58 Enable the FIH portal ................ 58 Disable the FIH portal ................ 59 Secure Disk Erase ......................59 Data affected ...................... 59 Gaining access to Secure Disk Erase ..............60 Additional Information ..................60 Job storage features ......................60 DSS authentication ......................

  • Page 8: Table Of Contents

    Information tab ................. 105 Settings tab ..................105 Digital Sending tab ................106 Networking tab ................. 106 Other links ..................106 HP Web Jetadmin software ....................107 HP Printer Utility for Macintosh ..................107 Open the HP Printer Utility ................107 Print a cleaning page ..................

  • Page 9: Table Of Contents

    Performing preventive maintenance ....................128 ADF maintenance kit ......................128 Calibrate the scanner ........................129 Set the real-time clock ........................130 Set the date format ......................130 Set the date ........................130 Set the time format ......................130 Set the time ........................130 4 Theory of operation Basic operation ..........................

  • Page 10: Table Of Contents

    Sub power supply fan failure detection ............148 ETB fan failure detection .................. 148 Low-voltage power supply ....................148 Fuser control circuit ..................149 Low-voltage power supply circuit ..............151 Protective functions ................. 152 Safety ....................152 Sleep mode ..................152 Power supply recognition ..............

  • Page 11: Table Of Contents

    Cartridge presence detection .................... 174 Memory tag detection ..................174 Photosensitive drum detection ................. 174 Developing cylinder disengaging control ............175 ETB (electrostatic transfer/transport belt) ................. 175 Transfer roller (Y, C, M) engagement/disengagement detection ........177 Transfer roller engagement/disengagement control ............177 Calibration and cleaning ....................

  • Page 12: Table Of Contents

    ADF jam ..........................211 Registration sensor jam ................... 212 Read sensor jam ....................212 Exit sensor jam ....................212 ADF cover-open jam ......................212 ADF open jam ........................212 2 X 500-sheet paper feeder ....................... 213 Pickup and feed operations ....................214 2 X 500-sheet jam detection .....................

  • Page 13: Table Of Contents

    Before performing service ....................261 After completing service ....................261 Screws used in the MFP ....................262 Service approach ..........................263 User-replaceable parts ........................264 Print cartridges ........................265 Control panel overlays ...................... 267 Control panel ........................267 Intermediate paper transfer unit (IPTU) ................269 Stapler/stacker ........................

  • Page 14: Table Of Contents

    Main drive assembly ......................344 Rail holder assembly ......................359 Rail guide assembly ......................361 Formatter case assembly ....................364 Laser/scanner components ....................370 Duplexing assembly ......................377 Delivery assembly ......................379 Fuser drive assembly ......................387 Motors and fans ..........................388 Drum motors ........................

  • Page 15: Table Of Contents

    ADF leading-edge and paper-present sensors ..............457 ADF hinges ........................458 2 X 500-sheet paper input assembly components ................460 Rear cover ........................461 Right front cover ........................ 462 Left front cover ........................463 Right cover ........................464 Left cover .......................... 466 Right lower cover assembly ....................

  • Page 16: Table Of Contents

    Understand accessory lights for the 3-bin mailbox and stapler/stacker ..........550 Understand lights on the formatter ....................551 HP Jetdirect LEDs ......................551 Heartbeat LED ........................551 Replacement parts configuration ....................... 552 Formatter and DC controller ..................... 552 Formatter (new or previously installed in another MFP) ........... 552 DC controller (new or previously installed in another MFP) ..........

  • Page 17: Table Of Contents

    Print quality troubleshooting tool ..................585 Image defect examples ..................... 585 Horizontal lines or streaks ................585 Misaligned color ....................587 Vertical lines ..................... 588 Repetitive defects ..................... 589 Color fade in all colors ..................590 Color fade in one color ..................591 Fingerprints and media dents ................

  • Page 18: Table Of Contents

    Network connectivity problems ......................615 Troubleshooting network printing problems ..............615 Loopback test ........................616 Ping test ..........................616 Functional checks ..........................617 Engine test ........................617 Formatter test ........................617 MFP resets ............................619 Cold reset .......................... 619 NVRAM initialization ......................619 Tools for troubleshooting ........................

  • Page 19: Table Of Contents

    Use HP Web Jetadmin to upgrade the firmware ..........661 Use MS-DOS commands to upgrade the firmware ......... 661 Use the HP Jetdirect firmware ..................661 7 Parts and diagrams Introduction ............................664 Ordering parts and supplies ......................665 Parts that wear ........................665 Parts ..........................

  • Page 20: Table Of Contents

    Appendix C Regulatory information Compliance with FCC regulations ..................... 830 Declaration of Conformity ........................831 Environmental product stewardship program ..................832 Protecting the environment ....................832 Ozone production ......................832 Power consumption ......................832 Toner consumption ......................832 Paper use .......................... 832 Plastics ..........................

  • Page 21: Product Information

    Product information ● Product comparison ● Product features ● Product walkaround ● Media specifications ● Information pages ENWW...

  • Page 22: Product Comparison, Hp Color Laserjet Cm4730 Mfp

    Product comparison HP Color LaserJet CM4730 MFP The HP Color LaserJet CM4730 MFP is the base model, and comes standard with the following items: ● 100-sheet multipurpose input tray (tray 1) ● Three 500-sheet input trays ● Automatic document feeder (ADF) that holds up to 50 pages ●...

  • Page 23: Hp Color Laserjet Cm4730f Mfp, Hp Color Laserjet Cm4730fsk Mfp

    HP Color LaserJet CM4730f MFP The HP Color LaserJet CM4730f MFP has the same features as the base model and includes an analog fax accessory. HP Color LaserJet CM4730fsk MFP The HP Color LaserJet CM4730fsk MFP has the same features as the base model and includes the following items: ●...

  • Page 24: Hp Color Laserjet Cm4730fm Mfp

    HP Color LaserJet CM4730fm MFP The HP Color LaserJet CM4730fm MFP has the same features as the base model and includes the following items: ● Analog fax accessory ● Output accessory bridge ● 3-bin mailbox accessory Chapter 1 Product information ENWW...

  • Page 25: Product Features

    Product features Functions ● Two-sided copying (duplexing) ● Color digital sending ● Color access control ● Network printing Speed and throughput ● 31 pages per minute (ppm) when copying and printing on letter-size paper; 30 ppm when copying and printing on A4-size paper ●...

  • Page 26

    Languages and fonts ● HP Printer Command Language (PCL) 6 ● HP PCL 5 ● Printer Management Language ● XHTML ● 80 scalable TrueType typefaces ● HP PostScript ® 3 emulation (PS) Copying and sending ● Modes for text, graphics, and mixed text and graphics formats ●...

  • Page 27

    ● Duplex printing and copying: Provides two-sided printing and copying (printing on both sides of the paper). ● ADF duplex scanning: The ADF has an automatic duplexer for scanning two-sided documents. ● Output ● Standard output bin: The standard output bin is located on the left side of the MFP. This bin can hold up to 500 sheets of paper.

  • Page 28

    ● Group PIN authentication (Group 1 and Group 2) ● User PIN authentication Chapter 1 Product information ENWW...

  • Page 29: Product Walkaround, Front View

    Product walkaround Front view ADF top cover Automatic document feeder (ADF) input tray for copy/scan/fax originals Control-panel status lights Control-panel display with touchscreen functionality Control-panel keypad Right-side covers (provides access to the print cartridges and other consumables) Tray 2, 3, and 4 Paper-level indicators On/Off switch Output bin...

  • Page 30: Back View

    Back view Output bin Interface ports On/off switch Power connection Chapter 1 Product information ENWW...

  • Page 31: Interface Ports, Serial Number And Model Number Location

    Interface ports The MFP has five ports for connecting to a computer or a network. The ports are at the left, rear corner of the MFP. Foreign interface harness (FIH) USB 2.0 ACC port Fax connection (for connecting to an optional analog fax accessory) Parallel port EIO interface expansion slot Access port for Kensington lock...

  • Page 32

    serial number Figure 1-1 Sample model and serial number label Model name Model number HP Color LaserJet CM4730 MFP CB480A HP Color LaserJet CM4730f MFP CB481A HP Color LaserJet CM4730fsk MFP CB482A HP Color LaserJet CM4730fm MFP CB483A Chapter 1 Product information ENWW...

  • Page 33: Media Specifications, Understand Paper And Print Media Use, Supported Paper And Print Media Sizes

    For best results, use only HP-brand paper and print media designed for laserjets or multiuse. Do not use paper or print media made for inkjet printers. Hewlett-Packard Company cannot recommend the use of other brands of media because HP cannot control their quality.

  • Page 34

    Table 1-1 Supported paper and print media sizes (continued) Size Dimensions Tray 1, mailbox, Trays 2, 3, 4 Stapler stacker B4 (ISO) 250 x 353 mm (9.84 x 13.90 in.) B4 (JIS) 257 x 364 mm (10.12 x 14.33 in.) 305 x 430 mm (12.01 x 16.93 in.) B5 (JIS) 182 x 257 mm (7.17 x 10.12 in.)

  • Page 35: Custom Paper Sizes, Special Paper Or Print Media Guidelines

    Custom paper sizes This product supports a variety of custom paper sizes. Supported custom sizes are sizes that are within the minimum- and maximum-size guidelines for the product but are not listed in the supported paper sizes table. When using a supported custom size, specify the custom size in the print driver, and load the paper in a tray that supports custom sizes.

  • Page 36: Information

    Information pages Information pages provide details about the device and its current configuration. The following table provides the instructions for printing the information pages. Page description How to print the page from the MFP control panel Menu map From the Home screen, scroll to and touch Administration. Shows the control-panel menus and Touch Information.

  • Page 37

    Page description How to print the page from the MFP control panel Contains information for any mass Touch Configuration/Status Pages. storage devices, such as flash drives, Scroll to and touch File Directory. memory cards, or hard disks, that are installed in the device. Touch Print.

  • Page 38

    Chapter 1 Product information ENWW...

  • Page 39

    Installation ● Installation checklist ● Unpacking the MFP ● Connecting power ● Installing print cartridges ● Installing a new control panel overlay ● Install memory and print server cards ● Test the MFP operation ● Sleep and wake ● Connecting to a computer or network ●...

  • Page 40: Installation Checklist

    Installation checklist When setting up the MFP for the first time, perform the following tasks to ensure that the MFP is installed correctly. Table 2-1 HP Color LaserJet CM4730 MFP installation Item Details Verify that the MFP is connected to an A minimum of 10A (110V) or 5A (220V) circuit adequate power source.

  • Page 41

    Table 2-1 HP Color LaserJet CM4730 MFP installation (continued) Item Details ● All optional devices display (for example, the stapler/stacker or the 3-bin mailbox). ● If the fax accessory is installed, the modem status reads Operational/Enabled. ● On the Embedded Jetdirect Page, verify that the status reads I/O Card Ready and that you have a valid IP address.

  • Page 42: Unpacking The Mfp

    Unpacking the MFP NOTE: Save all the packing materials in case you need to repack and transport the MFP at a later date. WARNING! The HP Color LaserJet CM4730 MFP weighs approximately 124 kg (273 lb). HP recommends having three or more people move or position the MFP. Remove the top of the box and remove the outer cardboard wrapping from the sides of the MFP.

  • Page 43

    Remove the inner cardboard frame and foam corner packaging, and install the ramps. Remove the shipping blocks and plastic bag that surround the MFP. ENWW Unpacking the MFP...

  • Page 44

    Roll the MFP down the ramps into the prepared location. CAUTION: Do not attempt to move the MFP by yourself. At least two people must move the MFP into the prepared location. While two people can move the MFP, using three or four people to unpack and install the MFP is easier and safer.

  • Page 45

    Unlock the scanner. ENWW Unpacking the MFP...

  • Page 46: Connecting Power

    Connecting power Plug the AC power cord into the MFP and into the power outlet. Turn the MFP on. Chapter 2 Installation ENWW...

  • Page 47: Installing Print Cartridges

    Installing print cartridges For additional information on installing and managing print cartridges, see Managing print cartridges on page 114. Open the covers on the right side of the MFP. CAUTION: The fuser might be hot. Grasp the green handle and pull down the ETB. CAUTION: Do not place any item on the transfer belt while it is open.

  • Page 48

    Remove the used print cartridge from the MFP. Remove the new print cartridge from the bag. Place the used print cartridge in the bag for recycling. Align the print cartridge with the tracks inside the MFP and insert the cartridge until it is completely seated.

  • Page 49: Installing A New Control Panel Overlay

    Installing a new control panel overlay Some MFP models are shipped without the product control panel overlay installed or a different overlay may be used from the one that is installed. Overlays are available for several languages. If setting up an MFP for a language other than English, follow this procedure. Turn the MFP off.

  • Page 50: Install Memory And Print Server Cards, Install Memory And Fonts, Install Ddr Memory Dimms

    Install memory and print server cards The MFP has two 200-pin DDR SDRAM slots on the front side of the formatter board. One slot contains a 256 MB DIMM, and the other contains a 128 MB DIMM. These DIMMS are used for print functionality.

  • Page 51: Enabling Memory, Install An Hp Jetdirect Or Eio Print Server Card

    Enabling memory If you installed a memory DIMM, set the MFP driver to recognize the newly added memory. On the Start menu, point to Settings, and click Printers or Printers and Faxes. Right-click the printer and select Properties. On the Device Settings tab, click Printer Memory (in the Installable Options section). Select the total amount of memory that is now installed.

  • Page 52

    Disconnect all power and interface cables. Locate an open EIO slot. Loosen and remove the two retaining screws holding the cover for the EIO slot, and then remove the cover. You will not need these screws and the cover again. They can be discarded.

  • Page 53

    Firmly insert the HP Jetdirect print server card into the EIO slot. Insert and tighten the retaining screws that came with the print server card. Connect the network cable. ENWW Install memory and print server cards...

  • Page 54

    Reconnect the power cable, and turn the MFP on. Print a configuration page. In addition to an MFP configuration page and a Supplies Status page, an HP Jetdirect configuration page that contains network configuration and status information should also print. If it does not print, uninstall and reinstall the print server card to ensure that it is completely seated in the slot.

  • Page 55: Test The Mfp Operation

    Test the MFP operation Print a configuration page to ensure that the MFP is working correctly. See Information pages on page 16 for instructions. ENWW Test the MFP operation...

  • Page 56: Sleep And Wake

    Sleep and wake Set the sleep delay Use the sleep-delay feature to set the period of time that the MFP must be idle before it enters the sleep mode. The default setting is 30 minutes. Scroll to and touch Administration. Touch Time/Scheduling.

  • Page 57: Connecting To A Computer Or Network, Parallel Connection

    Connecting to a computer or network The MFP has eight ports for connecting to a computer or a network. The ports are at the right rear corner of the MFP. Foreign interface harness (FIH) USB 2.0 ACC port Fax connection (for connecting to an optional analog fax accessory) Parallel port EIO interface expansion slot Kensington lock...

  • Page 58: Usb Connection

    Figure 2-1 Parallel port connection C-connector Parallel port NOTE: To use the enhanced capabilities of the bidirectional parallel interface, ensure that the most recent printer driver is installed. Factory settings support automatic switching between the parallel port and one or more network connections on the MFP.

  • Page 59: Auxiliary Connection

    Figure 2-2 USB connection USB connector USB port Auxiliary connection This MFP supports an auxiliary connection for paper-handling input devices. The port is located on the back of the MFP. NOTE: This connector cannot be used by the 3-bin mailbox or stapler/stacker accessories. ENWW Connecting to a computer or network...

  • Page 60: Fax Connection, Analog Faxing, Connecting The Fax Accessory To A Phone Line

    Figure 2-3 Auxiliary connection Auxiliary connection port (Jetlink) Fax connection The HP Color LaserJet CM4730f MFP, HP Color LaserJet CM4730fsk MFP, and HP Color LaserJet CM4730fm MFP models are equipped with an HP LaserJet analog fax accessory already installed. Windows users can also install the optional HP Digital Sending Software (HP DSS), which provides digital faxing services.

  • Page 61: Configuring And Using The Fax Features, Digital Faxing

    Follow these instructions to connect the fax accessory to a phone jack. Locate the phone cord that is included with the fax accessory kit. Connect one end of the phone cord into the fax accessory phone jack that is on the formatter. Push the connector until it clicks. CAUTION: Be sure to connect the phone line to the fax accessory port, which is located in the center of the formatter.

  • Page 62: Software For Windows, Supported Windows Versions, Install The Printing-system Software, Printer Software

    Printer software Software for Windows Supported Windows versions Software Windows 2000 /Server 2003 /Vista Windows Installer PCL 5 driver software PCL 6 driver software (black only) PCL 6 driver software PostScript emulation HP Easy Printer Care HP Web Jetadmin Universal Print Driver Available only on the World Wide Web.

  • Page 63: Install Windows Printing-system Software For Networks

    Install Windows printing-system software for direct connections (USB or parallel) This section explains how to install the printing-system software for the following Microsoft operating systems: ● Windows 2000 ● Windows Server 2003 ● Windows XP ● Windows Vista NOTE: Do not connect the parallel or USB cable until the software prompts you to do so. If the parallel or USB cable was connected before the software installation, see Install the software after the parallel or USB cable has been connected on page...

  • Page 64: Use Windows-sharing On A Network, Connected, Supported Printer Drivers

    Insert the MFP CD into the CD-ROM drive. If the welcome screen does not open, use the following procedure: ● On the Start menu, click Run. ● Type X:\setup (where X is the letter of the CD-ROM drive). ● Click OK. When prompted, click Install and follow the onscreen instructions.

  • Page 65: Remove Software For Windows, Select The Correct Printer Driver, Universal Printer Drivers, Driver Autoconfiguration

    Operating system PCL 5 PCL 6 PS level 3 emulation Linux For Linux, download the postscript level 3 emulation driver from www.hp.com/go/linuxprinting. The printer drivers include online Help that has instructions for common printing tasks and also describes the buttons, checkboxes, and drop-down lists that are in the printer driver. Remove software for Windows Click the Windows Start menu, and then click Settings and Control Panel.

  • Page 66

    time of installation. Some accessories that the Driver Autoconfiguration supports are the duplexing unit, optional paper trays, and dual inline memory modules (DIMMs). Chapter 2 Installation ENWW...

  • Page 67: Update Now, Priority For Print Settings

    Update Now If you have modified the device configuration since installation, the driver can be automatically updated with the new configuration. Open the printer driver. See Open the printer drivers on page Click the Device Settings tab. In the drop-down list next to Automatic Configuration, select Update Now. Priority for print settings Changes to print settings are prioritized depending on where the changes are made: NOTE:...

  • Page 68: Open The Printer Drivers, Software For Macintosh, Software For Macintosh Computers

    Open the printer drivers Operating System To change the settings for all To change the default To change the device print jobs until the software settings for all print jobs configuration settings program is closed Windows 2000, XP, On the File menu in the Click Start, click Settings, Click Start, click Settings, Server 2003, and...

  • Page 69: Install Software For Macintosh, Install Macintosh Software For Direct Connections (usb)

    The printing system software includes the following components: ● PostScript Printer Description (PPD) files The PPDs, in combination with the Apple PostScript printer drivers, provide access to device features. Use the Apple PostScript printer driver that comes with the computer. ●...

  • Page 70: Install Macintosh Software For Networks, Remove Software From Macintosh Operating Systems

    In the pop-up menu, select Printer Model, and then, in the pop-up menu in which Generic is selected, select the correct PPD for the device. Print a test page from any software program to make sure that the software is correctly installed. If installation fails, reinstall the software.

  • Page 71: Unix, Network Utilities, Hp Web Jetadmin

    HP Web Jetadmin has the following features: ● The task-oriented user interface provides configurable views, saving network managers significant time. ● The customizable user profiles let network administrators include only the function viewed or used. ● Instant e-mail notification of hardware failure, low supplies, and other MFP problems. ●...

  • Page 72: Embedded Web Server

    Embedded Web server The device is equipped with an embedded Web server, which provides access to information about device and network activities. This information appears in a Web browser, such as Microsoft Internet Explorer, Netscape Navigator, Apple Safari, or Firefox. The embedded Web server resides on the device.

  • Page 73: Hp Easy Printer Care Software, Other Components And Utilities

    HP Easy Printer Care software The HP Easy Printer Care software is a program that you can use for the following tasks: ● Discovering printers on the network and checking the status of each device ● Setting and viewing device and supplies alerts for multiple printers at the same time ●...

  • Page 74: Configure Tcp/ipv4 Parameters, Change The Ip Address, Network Configuration

    Network configuration You might need to configure certain network parameters on the device. You can configure these parameters in the following locations: ● Installation software ● Device control panel ● Embedded Web server ● Management software (HP Web Jetadmin or HP LaserJet Utility for Macintosh) NOTE: For more information about using the embedded Web server, see Embedded Web server on page 104...

  • Page 75: Set The Subnet Mask, Set The Default Gateway

    Touch IPV4 Settings. Touch Config Method. Touch Manual. Touch Save. Touch Manual Settings. Touch Address. Touch the IP Address text box. Use the touchscreen keypad to type the IP address. Touch OK. Touch Save. Set the subnet mask Scroll to and touch Administration. Scroll to and touch Initial Setup.

  • Page 76: Configure Tcp/ipv6 Parameters, Disable Network Protocols (optional), Disable Ipx/spx

    Touch Embedded Jetdirect. Touch TCP/IP. Touch IPV4 Settings. Touch Config Method. Touch Manual. Touch Save. Touch Manual Settings. Touch Default Gateway. Touch the Default Gateway text box. Use the touchscreen keyboard to type the default gateway. Touch OK. Touch Save. Configure TCP/IPv6 parameters For information about configuring the device for a TCP/IPv6 network, see the HP Jetdirect Print Server Administrator's Guide.

  • Page 77: Disable Appletalk, Disable Dlc/llc, Hp Jetdirect Eio Print Servers

    Touch Off. Touch Save. Disable AppleTalk Scroll to and touch Administration. Scroll to and touch Initial Setup. Touch Networking and I/O. Touch Embedded Jetdirect. Touch AppleTalk. Touch Enable. Touch Off. Touch Save. Disable DLC/LLC Scroll to and touch Administration. Scroll to and touch Initial Setup.

  • Page 78: Secure The Embedded Web Server, Foreign Interface Harness (fih), Requirements, Security Features, Using The Fih

    Security features Several important security features are available for the MFP. Use the information in this section to configure these features to meet the user's needs. Secure the embedded Web server Assign a password for access to the embedded Web server so that unauthorized users cannot change the MFP settings.

  • Page 79: Disable The Fih Portal, Secure Disk Erase, Data Affected

    NOTE: The PIN must be numeric. Click the appropriate button for the type of connection: Direct or Network. If selecting Direct, type the MFP port. If selecting Network, type the IP address and port for the MFP. NOTE: The IP address for the MFP appears on the configuration page. If an incorrect IP address is typed, an error message will display.

  • Page 80: Gaining Access To Secure Disk Erase, Additional Information, Job Storage Features, Dss Authentication

    NOTE: Stored jobs will be securely overwritten only when they have been deleted through the Retrieve Job menu on the MFP after the appropriate erase mode has been set. This feature will not impact data that is stored on flash-based product non-volatile RAM (NVRAM) that is used to store default settings, page counts, and similar data.

  • Page 81: Locking The Formatter Cage

    Type a Device Password. In the Control Panel Access section, select Maximum Lock. This prevents unauthorized users from gaining access to configuration settings. Locking the formatter cage A Kensington lock can be placed on the formatter cage to prevent unauthorized access to components on the formatter.

  • Page 82: Optional Output And Input Devices

    Optional output and input devices Optional paper-handling devices are available for the MFP. ● 3-bin mailbox with output accessory bridge ● Stapler/stacker with output accessory bridge Each of these accessories comes with an installation guide that explains how to install it. After installing an accessory, print a configuration page to verify that the accessory was installed successfully.

  • Page 83: Manage And Maintain

    Manage and maintain This chapter contains information about the following topics: ● Control-panel menus ● Management tools ● Approximate replacement intervals for supplies ● ETB life under different circumstances ● Managing print cartridges ● Replacing supplies ● Using the cleaning page ●...

  • Page 84: Use The Control Panel, Control-panel Layout

    Control-panel menus Use the control panel The control panel has a VGA touchscreen that provides access to all device functions. Use the buttons and numeric keypad to control jobs and the device status. The LEDs indicate overall device status. Control-panel layout The control panel includes a touchscreen graphical display, job-control buttons, a numeric keypad, and three light-emitting diode (LED) status lights.

  • Page 85: Home Screen

    Home screen The home screen provides access to the device features, and it indicates the current status of the device. NOTE: Depending on how the device has been configured, the features that appear on the home screen can vary. Features Depending on how the system administrator has configured the device, the features that appear in this area can include any of the following items: ●...

  • Page 86: Buttons On The Touchscreen, Control-panel Help System, Navigate The Administration Menu

    Buttons on the touchscreen The status line on the touchscreen provides information about the status of the device. Various buttons can appear in this area. The following table describes each button. Home button. Touch the home button to go to the Home screen from any other screen. Start button.

  • Page 87: Information Menu

    To exit the Administration menu, touch the Home button ( ) in the upper-left corner of the screen. The device has built-in Help that explains each of the features that are available through the menus. Help is available for many menus on the right-hand side of the touchscreen. Or, to open the global Help system, touch the Help button ( ) in the upper-right corner of the screen.

  • Page 88: Default Job Options Menu

    Table 3-1 Information menu (continued) Menu item Sub-menu item Sub-menu item Values Description Fax Reports Fax Activity Log Print Contains a list of the faxes that have been sent from or received by this device. Fax Call Report Fax Call Report Print A detailed report of the last fax operation, either sent or received.

  • Page 89: Default Options For Originals

    ● Default Copy Options ● Default Fax Options ● Default E-mail Options ● Default Send to Folder Options ● Default Print Options Default Options for Originals Administration > Default Job Options > Default Options For Originals Table 3-2 Default Options for Originals menu Menu item Values Description...

  • Page 90: Image Adjustment

    Image adjustment Administration > Default Job Options > Image Adjustment Table 3-3 Image Adjustment menu Menu item Values Description Darkness Select a value. Select the level of density (darkness) for the output. Background Cleanup Adjust the value within the range. Increase the Background Removal setting to remove faint images from the background or to remove a light background color.

  • Page 91: Default Copy Options

    Default Copy Options Administration > Default Job Options > Default Copy Options Table 3-4 Default Copy Options menu Menu item Sub-menu item Values Description Number of Copies Type the number of Set the default number of copies for a copy job. copies.

  • Page 92: Default Fax Options

    Default Fax Options Administration > Default Job Options > Default Fax Options Table 3-5 Fax Send menu Menu item Sub-menu item Values Description Resolution Standard (100x200dpi) Set the resolution for sent documents. Higher (default) resolution images have more dots per inch (dpi), so they show more detail.

  • Page 93: Default E-mail Options

    Default E-mail Options Administration > Default Job Options > Default E-mail Options Menu item Values Description Document File Type (default) Select the file format for the e-mail. JPEG TIFF M-TIFF Output Quality High (large file) Selecting higher quality for output increases the size of the output file.

  • Page 94: Default Send To Folder Options

    Default Send to Folder Options Administration > Default Job Options > Default Send To Folder Options Menu item Values Description Color/Black Color scan Specify whether the file will be in black or in color. Black/white scan (default) Document File Type (default) Select the file format for the file.

  • Page 95: Default Print Options, Time/scheduling Menu

    Default Print Options Administration > Default Job Options > Default Print Options Table 3-7 Default Print Options menu Menu item Sub-menu item Values Description Copies Per Job Type a value. Set the default number of copies for print jobs. Default Paper Size (List of supported Select a paper size.

  • Page 96

    Table 3-8 Time/Scheduling menu Menu item Sub-menu item Sub-menu item Values Description Date/Time Date Format YYYY/MMM/DD Use this feature to set the current date and (default) time, and to set the date format and time format that are used to time-stamp outgoing MMM/DD/YYYY faxes.

  • Page 97: Management Menu

    Table 3-8 Time/Scheduling menu (continued) Menu item Sub-menu item Sub-menu item Values Description Fax Printing Fax Printing Mode Store all received If you have concerns about the security of faxes private faxes, use this feature to store faxes rather than having them automatically print Print all received by creating a printing schedule.

  • Page 98: Initial Setup Menu

    Table 3-9 Management menu (continued) Menu item Sub-menu item Values Description Manage Supplies Replace Supplies Stop at low This menu sets the MFP behavior for when a print cartridge, fuser kit, or transfer kit is low. Choose Stop Stop at out (default) at low to stop printing when a supply reaches a low...

  • Page 99: Networking And I/o

    Networking and I/O Administration > Initial Setup > Networking and I/O Table 3-10 Networking and I/O Menu item Sub-menu item Values Description I/O Timeout Select a value in the I/O timeout refers to the elapsed time before a print range. The factory job fails.

  • Page 100

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description example, when manually configured to use BootP or DHCP). Auto IP: A link-local IP address 169.254.x.x is set. Legacy: The address 192.0.0.192 is set, consistent with older HP Jetdirect devices. DHCP Release This menu appears if Config Method...

  • Page 101

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description Enable: Select this item and choose to enable manual configuration, or to disable manual configuration. Address: Use this item to type a 32 hexadecimal digit IPv6 node address that uses the colon hexadecimal syntax.

  • Page 102

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description DLC/LLC Enable Off: Disable the DLC/LLC protocol. (default): Enable the DLC/LLC protocol. Security Print Sec Page (default): Prints a page that contains the current security settings on the HP Jetdirect print server. No: A security settings page is not printed.

  • Page 103

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description Select to choose this test, or to not choose it. SNMP Test This test checks operation of SNMP communications by accessing predefined SNMP objects on the device. Select to choose this test, or to not choose it.

  • Page 104

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description Ping Results Use this item to view the ping test status and results using the control panel display. You can select the following items: Packets Sent Shows the number of packets (0 - 65535) sent to the remote host since the most recent test was initiated or completed.

  • Page 105

    Table 3-11 Jetdirect menus (continued) Menu item Sub-menu item Sub-menu item Values and Description 100TX Full: 100 Mbps, full-duplex operation. 100TX Auto: Limits auto-negotiation to a maximum link speed of 100 Mbps. 1000TX Full: 1000 Mbps, full-duplex operation. Print Protocols Use this item to print a page that lists the configuration of the following protocols: IPX/SPX, Novell NetWare, AppleTalk, DLC/LLC.

  • Page 106: Fax Setup

    Fax Setup Administration > Initial Setup > Fax Setup Table 3-12 Fax Setup menu Menu item Sub-menu item Sub-menu item Values Description Required Settings Country/Region (Countries/regions Configure the settings that are legally listed) required for outgoing faxes. Date/Time Fax Header Phone Number Information Company Name...

  • Page 107

    Table 3-12 Fax Setup menu (continued) Menu item Sub-menu item Sub-menu item Values Description Fax Send Settings Fax Dial Volume Use this feature to set the volume of the tones that you hear while the device dials (default) the fax number. High Error Correction Enabled...

  • Page 108

    Table 3-12 Fax Setup menu (continued) Menu item Sub-menu item Sub-menu item Values Description Redial Interval The range is Use this feature to specify the number of between 1 and 5 minutes between dialing attempts if the minutes. The factory recipient number is busy or not answering.

  • Page 109: E-mail Setup, Send Setup Menu, Device Behavior Menu

    E-mail Setup Administration > Initial Setup > E-mail Setup Use this menu to enable the e-mail feature and to configure basic e-mail settings. NOTE: To configure advanced e-mail settings, use the embedded Web server. For more information, see Embedded Web server on page 104.

  • Page 110

    Table 3-15 Device Behavior menu (continued) Menu item Sub-menu item Sub-menu item Values Description language, the keyboard layout might also change. Key Press Sound (default) Use this feature to specify whether you hear a sound when you touch the screen or press buttons on the control panel.

  • Page 111

    Table 3-15 Device Behavior menu (continued) Menu item Sub-menu item Sub-menu item Values Description Tray Behavior Use Requested Tray Exclusively (default) Control how the device handles jobs that have specified a specific input tray. First Manually Feed Always (default) Specify how a prompt should appear when Prompt the type or size for a job does not match Unless Loaded...

  • Page 112

    Table 3-15 Device Behavior menu (continued) Menu item Sub-menu item Sub-menu item Values Description General Copy Scan Ahead Enabled (default) Turn on no-wait scanning. With Scan Behavior Ahead enabled, the pages in the original Disabled document are scanned to disk and held until the device becomes available.

  • Page 113

    Table 3-15 Device Behavior menu (continued) Menu item Sub-menu item Sub-menu item Values Description General Printing Override A4/Letter When this feature is enabled, the job prints Behavior on letter-size paper when an A4 job is sent (default) but no A4-size paper is loaded in the device (or prints on A4 paper when a letter-size job is sent but no letter-size paper is loaded).

  • Page 114: Print Quality Menu

    Sub-menu item Values Description Form Length Type a value PCL is a set of printer commands that between 5 and 128 Hewlett-Packard developed to provide lines. The factory access to printer features. default is 60 lines. Orientation Portrait (default) Select the orientation that is most often used for print jobs.

  • Page 115

    Table 3-16 Print Quality menu Menu item Sub-menu item Values Description Adjust Color Highlights Cyan Density. Magenta Adjust the darkness or lightness of highlights on a Density. Yellow Density. printed page. Lower values represent lighter Black Density highlights on a printed page, and higher values represent darker highlights on a printed page.

  • Page 116: Troubleshooting Menu

    Table 3-16 Print Quality menu (continued) Menu item Sub-menu item Values Description Optimize CACO3 In countries/regions where paper is expensive, this compound is added to paper to make it less expensive to produce. This compound makes the paper dusty, which affects print quality. Background1 Background2 Registration...

  • Page 117

    Table 3-17 Troubleshooting menu Menu item Sub-menu item Sub-menu item Values Description Event Log Print This shows the event codes and their corresponding engine cycles on the control- panel display. Calibrate Scanner Calibrate Use this feature to compensate for offsets in the scanner imaging system (carriage head) for ADF and flatbed scans.

  • Page 118

    Table 3-17 Troubleshooting menu (continued) Menu item Sub-menu item Sub-menu item Values Description Paper Path Test Test Page Print Generate a test page for testing the paper- handling features. Define the path for the test in order to test specific paper paths. Source All trays Specify whether the test page is printed...

  • Page 119

    Table 3-17 Troubleshooting menu (continued) Menu item Sub-menu item Sub-menu item Values Description Finishing Paper Staples Finishing Options Choose from a list Test the paper-handling features on the Path Test of available options. finisher. Select the option that you want to test. Media Size Letter Select the paper size for the test.

  • Page 120: Resets Menu, Service Menu

    Table 3-17 Troubleshooting menu (continued) Menu item Sub-menu item Sub-menu item Values Description Print/Stop Test Continuous value Isolate faults by stopping the device during from 0 to 60,000 the print cycle and observing where in the milliseconds. process the image degrades. To run the Default: 0 test, specify a stop time.

  • Page 121

    Table 3-19 Service menu Menu item Description Clear Event Log Select this item to clear (reset to zero) the internal event log. Refurbish Cycle Count Select this item to set the page count for a refurbished unit. This page count is stored in memory so that the correct Service ID can be restored after the MFP is refurbished.

  • Page 122: Supported Operating Systems, Information, Hp Easy Printer Care Software, Open Hp Easy Printer Care Software

    Management tools Information pages Information pages provide details about the device and its current configuration. See Information pages on page 16 for more information. HP Easy Printer Care software HP Easy Printer Care software is a software program that you can use for the following tasks: ●...

  • Page 123

    Section Description ● Supplies Status section: Shows detailed supplies status, such as the percentage of toner remaining in the print cartridges and the status of the media that is loaded in each tray. ● Supplies Details link: Opens the supplies status page to view more detailed information about printer supplies, ordering information, and recycling information.

  • Page 124: Open The Embedded Web Server, Embedded Web Server

    Embedded Web server Use the embedded Web server to view MFP and network status and to manage printing functions from your computer instead of from the MFP control panel. The following are examples of what you can do using the embedded Web server: NOTE: When the printer is directly connected to a computer, use the HP Easy Printer Care software to view the printer status.

  • Page 125: Information Tab, Settings Tab

    Information tab The Information pages group consists of the following pages. ● Device Status. This page shows the MFP status and shows the life remaining of HP supplies, with 0% representing that a supply is empty. The page also shows the type and size of print media set for each tray.

  • Page 126: Digital Sending Tab, Networking Tab, Other Links

    ● Device Information. Name the MFP and assign an asset number to it. Type the name of the primary contact who will receive information about the MFP. ● Language. Determine the language in which to show the embedded Web server information. ●...

  • Page 127: Hp Web Jetadmin Software, Hp Printer Utility For Macintosh, Open The Hp Printer Utility

    the embedded Web server, you must connect before you can visit these Web sites. Connecting might require that you close the embedded Web server and reopen it. ● HP Instant Support. Connects to the HP Web site to help you find solutions. This service analyzes your MFP error log and configuration information to provide diagnostic and support information specific to your MFP.

  • Page 128: Print A Cleaning, Print A Configuration, View Supplies Status

    Open the HP Printer Utility in Mac OS X V10.3 or Mac OS X V10.4 In the Dock, click the Printer Setup Utility icon. NOTE: If the Printer Setup Utility icon does not appear in the Dock, open the Finder, click Applications, click Utilities, and then double-click Printer Setup Utility.

  • Page 129: Order Supplies Online And Use Other Support Features, Upload A File To The Printer

    Order supplies online and use other support features Use the HP Web site to order printer supplies, register the printer, get customer support, or learn about recycling printer supplies. You must have Internet access in order to use the supplies and support Web pages.

  • Page 130: Lock Or Unlock Printer Storage Devices, Save Or Print Stored Jobs, Configure Trays

    Lock or unlock printer storage devices Manage access to printer storage devices from the computer. Open the HP Printer Utility. In the Configuration Settings list, select Lock Resources. On the Control Panel Access Level pop-up menu, select the access level that you want to set for the printer control panel.

  • Page 131: Change Network Settings, Open The Embedded Web Server, Set Up E-mail Alerts

    Change network settings Change the network internet protocol (IP) settings from the computer. You also can open the embedded Web server to change additional settings. For more information, see Embedded Web server on page 104. Open the HP Printer Utility. In the Configuration Settings list, select IP Settings.

  • Page 132: Approximate Replacement Intervals For Supplies

    Approximate replacement intervals for supplies The following table lists the estimated replacement intervals for supplies and the control panel messages that prompt when to replace each item. Usage conditions and print patterns may cause results to vary. Item Printer message Page count Approximate time period Black cartridges...

  • Page 133: Etb Life Under Different Circumstances

    ETB life under different circumstances Depending on the MFP workload, the customer will need to replace the ETB once or twice in the life of the MFP. In order to help plan supplies purchases, the HP Color LaserJet CM4730 MFP calculates an estimated remaining number of pages that can be printed with the ETB.

  • Page 134: Managing Print Cartridges, Hp Print Cartridges, Change Print Cartridges, Non-hp Print Cartridges, Print Cartridge Authentication

    Non-HP print cartridges Hewlett-Packard Company cannot recommend use of non-HP print cartridges, either new or remanufactured. Because they are not HP products, HP cannot influence their design or control their quality. Service or repair that is required as a result of using a non-HP print cartridge will not be covered under the MFP warranty.

  • Page 135: Print Cartridge Storage, Print Cartridge Life Expectancy, Checking The Supply Level

    Print cartridge storage Do not remove the print cartridge from its package until you are ready to use it. Always store the print cartridge in the proper environment. The storage temperature should be between -20°C and 40°C (-4°F to 104°F). The relative humidity should be between 10% and 90%. CAUTION: To prevent damage to the print cartridge, do not expose it to light for more than a few minutes.

  • Page 136: Replacing Supplies, Locate Supplies, Supply Replacement Guidelines, Making Room Around The Mfp For Replacing Supplies

    When you connect, select Solve a Problem. CAUTION: Hewlett-Packard recommends the use of genuine HP products in this MFP. Use of non-HP products may cause problems requiring service that is not covered by the Hewlett- Packard extended warranty or service agreements.

  • Page 137: Replacing The Etb, Replacing The Fuser

    Figure 3-3 Supplies replacement clearance diagram 1160 mm (45.7 inches); if stapler/stacker or 3-bin mailbox is installed: 1460 mm (47.5 inches) 980 mm (38.6 inches) 1050 mm (41.4 inches) Replacing the ETB Replace the ETB when a Replace Transfer Kit message appears on the product control panel display.

  • Page 138: Replacing The Stapler Cartridge

    Install the new fuser. Close the right upper cover. Supplies ordering information is also available from the embedded Web server. Replacing the stapler cartridge The stapler cartridge contains 5,000 staples. Replace the stapler cartridge if the MFP control panel display prompts users with a Stapler Low On Staples message (at this point, 20 to 50 staples remain in the cartridge) or a Stapler Out Of Staples message.

  • Page 139

    Insert the new staple cartridge into the stapler unit and push down on the green handle until the unit snaps into place. Close the staple cartridge cover, and slide the stapler/stacker into the MFP. ENWW Replacing supplies 119...

  • Page 140: Using The Cleaning

    Using the cleaning page During printing, toner and dust particles can accumulate inside the MFP. Over time, this buildup can cause print quality problems, such as toner specks or smearing. This MFP has a cleaning mode that can correct and prevent these problems. Process a cleaning page From the Home screen, touch Administration.

  • Page 141: Clean The Mfp, Clean The Outside Of The Mfp, Clean The Touchscreen

    Clean the MFP To maintain print quality, clean the MFP thoroughly every time you replace the print cartridge and whenever print-quality problems occur. WARNING! Avoid touching the fusing area when cleaning the MFP. It can be hot. CAUTION: To avoid permanent damage to the print cartridge, do not use ammonia-based cleaners on or around the MFP except as directed.

  • Page 142: Cleaning The Adf Delivery System, Clean The Adf Delivery System

    Cleaning the ADF delivery system Clean the ADF only if it is visibly marked or dirty, or if you are experiencing a decrease in copy quality (such as streaking). Clean the ADF delivery system Open the scanner lid. Locate the white, vinyl ADF backing. Clean the ADF backing by wiping them with a clean, damp, lint-free cloth.

  • Page 143: Clean The Adf Rollers

    Close the scanner lid. Clean the ADF rollers You should clean the rollers in the ADF if you are experiencing misfeeds or if your originals show marks as they exit the ADF. CAUTION: Clean the rollers only if you experience misfeeds or marks on the originals, and you notice dust on the rollers.

  • Page 144

    Locate the rollers near the white vinyl ADF backing. Wipe the rollers gently with a clean, water-dampened, lint-free cloth. CAUTION: Do not pour water directly onto the rollers. Doing so might damage the device. Close the scanner lid. 124 Chapter 3 Manage and maintain ENWW...

  • Page 145

    Pull the release lever to open the ADF cover. Locate the rollers. Wipe the rollers with a clean, water-dampened, lint-free cloth. CAUTION: Do not pour water directly onto the rollers. Doing so might damage the device. ENWW Clean the MFP 125...

  • Page 146: Clean The Mylar Strip

    Locate the separation pad. Wipe the pad with a clean, water-dampened, lint-free cloth. Close the ADF cover. Clean the mylar strip Clean the mylar strips on the underside of the scanner lid only if you are experiencing a decrease in copy quality (such as vertical lines) when copying using the ADF.

  • Page 147

    Locate the mylar strip (1). NOTE: Replacement mylar strips are stored in an envelope (2) that is underneath the white vinyl ADF backing. Follow the instructions that are in the envelope. Clean the mylar strip with a clean, damp, lint-free cloth. Close the scanner lid.

  • Page 148: Performing Preventive Maintenance, Adf Maintenance Kit

    Performing preventive maintenance The MFP requires periodic maintenance to maintain optimum performance. A product control panel message alerts you when it is time to purchase the preventive maintenance kit. ADF maintenance kit After feeding 90,000 pages through the ADF, a Replace Document Feeder Kit message appears on the product control panel display.

  • Page 149: Calibrate The Scanner

    Calibrate the scanner Calibrate the scanner to compensate for offsets in the scanner imaging system (carriage head) for ADF and flatbed scans. Because of mechanical tolerances, the scanner's carriage head might not read the position of the image accurately. During the calibration procedure, scanner offset values are calculated and stored.

  • Page 150: Set The Real-time Clock, Set The Date Format, Set The Date, Set The Time Format

    Set the real-time clock Use the real-time clock feature to set the date and time settings. The date and time information is attached to stored print, fax, and digital-send jobs, so you can identify the most recent versions of stored print jobs. Set the date format On the control panel, scroll to and touch Administration.

  • Page 151

    Touch the appropriate options to set the correct hour, minute, and AM/PM setting. Touch Save. ENWW Set the real-time clock 131...

  • Page 152

    132 Chapter 3 Manage and maintain ENWW...

  • Page 153: 4 Theory Of Operation

    Theory of operation This chapter provides information about the following topics: ● Basic operation ● Formatter system ● Engine control system ● Laser/scanner system ● Image formation system ● Pickup/feed system ● Scanner system ● 2 X 500-sheet paper feeder ●...

  • Page 154: Basic Operation

    Basic operation The HP Color LaserJet CM4730 MFP functions are divided into the following systems: ● Engine control system ● Laser/scanner system ● Image formation system ● Pickup/feed system ● Scanner system ● 2 X 500-sheet paper feeder ● Output devices The engine control system controls the laser/scanner system, the image formation system, and the pickup/feed system.

  • Page 155: Operation Sequence, Operation Sequence (scanner)

    Operation sequence A microcomputer in the engine control system controls the operation sequence for the MFP. The basic operation sequence (see Table 4-1 Basic operation sequence on page 135) describes the main operational periods from the point when the MFP is turned on until a print operation is completed and each motor stops rotating.

  • Page 156: Power On Sequence

    Period (sequence) Description Standby The period of time from the end of the initialization sequence until a request for a scan. During this time, the MFP might go into Sleep mode and the scan carriage rests in its home position. Scan The period of time immediately following a request for a scan.

  • Page 157

    Power ON CPU Initialization ASIC Initialization Start-up Fan Video interface communication start Internal communication start Residual paper jam check Pressurize fixing unit Developing roller Engaged engagement/diseng agement check Disengage developing roller Disengaged Environment detection Motors initial drive Cartridge presence check Residual paper check Scanner initial drive Transfer roller position...

  • Page 158: Formatter System, Sleep Mode

    Formatter system The formatter PCB is responsible for the following actions: ● Receiving and processing print data from the various MFP interfaces ● Monitoring control panel inputs and relaying MFP status information (through the product control panel and the bidirectional I/O) ●...

  • Page 159: Image Resolution Enhancement Technology (ret), Input/output, Parallel Interface, Usb 2.0 Connector, Acc Accessory Port

    downloadable fonts, and macros. The default setting is 30 minutes. You can turn Sleep mode off in the Administration menu, under Management, Sleep mode. The MFP exits Sleep mode and enters the warm-up cycle when any of the following occurs: ●...

  • Page 160: Flash, Hard Disk, Fih (foreign Interface Harness), Mfp Memory, Read-only Memory, Random-access Memory, Dimm Slots

    Flash Optional flash is available in 4 MB flash memory DIMMs for storing forms, fonts, and signatures. Hard disk The hard disk is mounted in an EIO slot on the formatter. The hard disk is used to create multiple original prints (mopies) and store forms, fonts, and signatures. The HP LaserJet CM4730 MFP formatter incorporates a 533 MHz RISC processor.

  • Page 161: Nonvolatile Memory, Pjl Overview, Control Panel, Scanner Interface

    Nonvolatile memory The MFP uses nonvolatile memory (NVRAM) to store I/O and information about the print environment configuration. The contents of NVRAM are retained when the MFP is turned off or disconnected. PJL overview Printer job language (PJL) is an integral part of configuration, in addition to the standard printer command language (PCL).

  • Page 162: Engine Control System, Dc Controller Pcb

    Engine control system The engine control system is the brain of the HP Color LaserJet CM4730 MFP. It controls all the other systems according to commands from the formatter. The engine control system consists of the following: ● DC controller PCB ●...

  • Page 163

    Figure 4-5 DC controller PCB ENWW Engine control system 143...

  • Page 164: Block Operation, Motors, Fans, And Environment Sensor

    Block operation The blocks that make up the DC controller PCB include: ● CPU. The CPU is a single-chip microcomputer with built-in ROM and RAM. It controls the MFP engine sequence, ASIC, fuser, pickup motor and lifter motor, solenoids, sensors, and switches. ●...

  • Page 165

    Figure 4-6 Motors and fans ENWW Engine control system 145...

  • Page 166

    Table 4-2 Function of motors, fans, and environment sensor Name Function Type Failure detection M1: Yellow (Y) cartridge Drives the photosensitive DC motor motor drum, developing cylinder, and stirrer plate M2: Cyan (C) cartridge motor M3: Magenta (M) cartridge motor M4: Black (K) cartridge motor M5: Fuser motor Drives the fuser pressure...

  • Page 167: Failure Detection, Drum Motor Failure Detection, Fuser Motor Failure Detection, Etb Motor Failure Detection

    Failure detection The DC controller can detect motor and fan failures as described below. Drum motor failure detection The DC controller determines the drum motor failure and notifies the formatter of an error status when it encounters the following conditions. NOTE: The drum motor failure detection operates in the same manner for each color separately.

  • Page 168: Power Supply Fan Failure Detection, Scanner Fan Failure Detection, Adf Fan Failure Detection

    the delivery fan lock detection signal is input for four seconds, it detects a delivery fan failure and notifies the formatter of an error status. Power supply fan failure detection The DC controller detects a power supply fan failure and notifies the formatter of an error status when the power supply fan lock detection signal is input for ten seconds continuously.

  • Page 169: Fuser Control Circuit

    Figure 4-7 Low-voltage power supply circuits Fuser control circuit This MFP uses a ceramic heating method to heat the fuser. Figure 4-8 Fuser power supply circuit on page 149 shows the configuration of the fuser power supply. Figure 4-8 Fuser power supply circuit ENWW Engine control system 149...

  • Page 170

    The fuser power supply system has three main components: ● Fuser heater. A ceramic heater heats the fuser sleeve. The heater has a U-shaped heating element on its surface. ● Thermistors. Two thermistors are in the fuser sleeve: one in the center, and the other at the end.

  • Page 171: Low-voltage Power Supply Circuit

    Table 4-3 Fuser temperatures (continued) Media Temperature Engine speed Tough paper ~ 180°C (356°F) Envelopes ~ 180°C (356°F) Low-voltage power supply circuit The low-voltage power supply circuit converts AC power from the wall receptacle into DC power to cover the DC loads. Figure 4-9 Low-voltage power supply circuit The AC power is supplied to the low-voltage power supply circuit by turning on the power switch...

  • Page 172: Protective Functions, Safety, Sleep Mode, Power Supply Recognition, Heater Temperature Control

    Protective functions Two fuses, FU101 and FU102, protect against overcurrent and overvoltage to prevent failures in the power supply circuit. If there is a supply error, such as a short-circuit or overvoltage, the low-voltage system automatically cuts off the output voltage. The fuses blow and cut off the AC power, once AC overcurrent flows into the AC line.

  • Page 173: Initial Rotation Temperature Control, Start-up Temperature Control

    Figure 4-10 Heater temperature control circuit The fuser heater temperature is monitored by two thermistors: the main thermistor (TH1) and the sub thermistor (TH2). The main thermistor controls the print temperature and the between-sheets temperature. The sub thermistor detects the one-sided temperature rise of the fuser heater, and controls the initial rotation temperature and the start-up temperature.

  • Page 174: Print Temperature Control, Between-sheets Temperature Control, Temperature Protective Function, Protective Function By The Cpu

    Print temperature control This control maintains the temperature of the fuser sleeve at its targeted temperature during the printing operation. The CPU gradually raises the targeted temperature in one printing process. This prevents the fuser temperature from falling while the media goes through the fuser roller. The targeted temperature also varies according to the number of prints when continuous printing.

  • Page 175: Protective Function By The Thermoswitch, Temperature Failure Detection, Start-up Failure (warm-up Failure)

    Protective function by the thermoswitch When the temperature of the fuser heater rises abnormally high and the detected temperature of the thermoswitch (TP) exceeds approximately 250°C (482°F), the thermoswitch is disconnected and the power supply to the fuser heater is immediately cut off. NOTE: The actual temperature of the fuser heater is about 30°...

  • Page 176: Abnormal High Temperature Of Sub Thermistor, Drive Circuit Abnormality, High-voltage Power Supply

    ● If the detected temperature of the main thermistor is kept 120°C (248°F) or lower for 0.5 seconds continuously, from when the media reaches the fuser until the heater is turned off during the print period. ● If the detected temperature of sub thermistor is kept 50°C (122°F) or lower for 0.5 seconds continuously during the standby period.

  • Page 177: Generation Of Biases

    Figure 4-11 High-voltage power supply block diagram Generation of biases Generation of primary charging bias: The primary charging bias is the DC negative bias that is generated to apply negative potential to the photosensitive drum in preparation for image formation. This bias is generated for each color (Y, C, M, K) in the primary charging high-voltage power supply circuit.

  • Page 178

    The developing voltage (bias) causes the toner to adhere to the electrostatic image that the laser/ scanner assembly created on the photosensitive drum. Two types of developing biases are used: the developing DC negative bias and the developing AC bias. The high-voltage circuit on the power supply generates both biases.

  • Page 179: Sub Power Supply Assembly, Video Interface Control

    Sub power supply assembly The sub power assembly provides power to the ADF and the image scanner. It is connected to the low-voltage power supply and the DC controller. Video interface control The video interface allows communication between the formatter and the DC controller. The formatter always monitors the status of the MFP by using the video interface.

  • Page 180

    The latent images on the photosensitive drums are developed by toner and transferred onto paper in this order: Y (yellow), C (cyan), M (magenta), and K (black). The toner is fused to the paper in the fuser and the paper is delivered to the delivery tray. Printing continues if the DC controller receives another print command from the formatter during the printing operation.

  • Page 181: Laser/scanner System

    Laser/scanner system The laser/scanner system forms the latent electrostatic image on the photosensitive drum according to video signals sent from the formatter. The main components of each laser/scanner assembly are the laser driver, scanner motor, mirrors, and focusing lenses. Each color has its own laser/scanner assembly unit, which is controlled by the DC controller.

  • Page 182: Laser Control

    The laser beams are reflected by the six-faced mirror, pass through the focusing lens and the reflecting mirror that is in front of the six-faced mirror, and focus the photosensitive drum. While the six-faced mirror rotates at a constant speed, the laser beams on the photosensitive drum scan the drum.

  • Page 183: Scanner Control

    Figure 4-14 Laser control circuit block diagram The laser control circuit manages the following control and detection functions: ● Laser emission control. Allows the laser diodes to turn on and off according to the video signals sent by the formatter. ●...

  • Page 184

    The DC controller divides the oscillation frequency of the oscillator (X1201) and generates the reference clock signal. It compares the intervals between the reference clock signal and the BD input signal (/BD1I) with the frequency comparator, and monitors the rotational count of the scanner motor. The DC controller controls rotational speed by sending an acceleration signal (/SCNACC1) or deceleration signal (/SCNDEC1) to the scanner motor driver based on the detected rotational speed.

  • Page 185: Image Formation System

    Image formation system The image formation system is the central hub of the MFP. It also forms the toner image on the media. The image formation system consists of four cartridges, the ETB, and the fuser, which are controlled by the DC controller. Figure 4-16 Image formation system on page 165 shows the image formation system.

  • Page 186: Image Formation Process

    Image formation process The image formation process consists of nine steps divided among five functional blocks: Electrostatic latent image formation block. Forms an electrostatic latent image on the photosensitive drum. Step 1: Pre-exposure Step 2: Primary charging Step 3: Laser beam exposure Development block.

  • Page 187

    Figure 4-17 Image formation process ENWW Image formation system 167...

  • Page 188: Electrostatic Latent Image Formation Block, Step 1: Pre-exposure

    Electrostatic latent image formation block The image formation process begins in the electrostatic latent image formation block. This block consists of three steps that results in forming an electrostatic latent image on the photosensitive drum: ● Pre-exposure ● Primary charging ●...

  • Page 189: Step 2: Primary Charging, Step 3: Laser Beam Exposure, Development Block, Step 4: Development

    Step 2: Primary charging To prepare for latent image formation, the surface of the photosensitive drum is charged with a uniform negative potential. The charging method of this MFP is to charge directly to the photosensitive drum surface from the primary charging roller, which is interlocked with the drum.

  • Page 190: Transfer Block, Step 5: Attraction, Step 6: Transfer

    Transfer block The third part of the image formation process is the transfer block, in which the toner image is transferred from the photosensitive drum to the media. This block consists of three steps: ● Attraction ● Transfer ● Separation Step 5: Attraction To feed the media vertically, it is necessary to push the media against the ETB.

  • Page 191: Step 7: Separation, Fusing Block, Step 8: Fusing

    Paper Transfer roller Photosensitive drum DC bias Figure 4-22 Toner transfer Step 7: Separation The elasticity of media separates the media from the photosensitive drum and the ETB. ETB feed roller Paper Figure 4-23 Separation Fusing block The fourth part of the image formation process is the fusing block, in which the toner image is fused to the media, making a permanent image that cannot be smeared.

  • Page 192: Cleaning Block, Step 9: Drum Cleaning, Print Cartridges

    Figure 4-24 Fusing Cleaning block The fifth and final part of the image formation process is the cleaning block, in which the photosensitive drums are cleaned, preparing them for the next print. In the transfer block, not all of the toner is transferred from the photosensitive drum onto the media, but some remains on the drum surface.

  • Page 193

    DC controller PCB Toner level PCB Memory controller Memory tag Drum motor Photosensitive drum Developing alienation sensor SR11 Toner level sensor (light receiver) Developing alienation block Toner level sensor (light emitter) Developing alienation motor Figure 4-25 Print cartridge The following are the physical components inside the print cartridge: ●...

  • Page 194: Memory Tag, Cartridge Presence Detection, Memory Tag Detection, Photosensitive Drum Detection

    Memory tag The memory tag is a nonvolatile memory that is built into the print cartridge. It stores information about the amount of toner in the cartridge and estimates the remaining life. Figure 4-26 Memory tag on page 174 illustrates how the memory tag operates. Memory tag contact Memory tag Memory data...

  • Page 195: Developing Cylinder Disengaging Control, Etb (electrostatic Transfer/transport Belt)

    Motor rotation (rpm) Motor rotation (rpm) Predetermined Motor stop time time Time (t) Time (t) Motor OFF Specified time (T) Motor ON Motor OFF Specified time (T) Motor ON < Cartridge presence > < Cartridge absence > Figure 4-27 Photosensitive drum detection Developing cylinder disengaging control The developing cylinder is engaged or disengaged when the DC controller drives the developing alienation motor.

  • Page 196

    DC controller PCB ETB motor ETB feed roller Photosensitive drums Transfer roller Attraction roller ETB engaged roller Figure 4-28 The following are the components of the ETB: ● ETB belt ● ETB feed roller ● ETB engaged roller ● Attraction roller ●...

  • Page 197: Transfer Roller (y, C, M) Engagement/disengagement Detection, Transfer Roller Engagement/disengagement Control

    used for the color misregistration and image stabilization control. The pattern image for the color misregistration or image density determination is transferred onto the ETB. The ETB also controls the following: ● Transfer roller (Y, C, M) engagement/disengagement detection ● Transfer roller alienation ●...

  • Page 198: Calibration And Cleaning

    DC controller PCB Bk cartridge Transfer roller engaging cam M cartridge C cartridge Y cartridge Transfer roller holder Transfer roller < Transfer roller engaged > < Transfer roller disengaged > Figure 4-29 Transfer roller engagement/disengagement control NOTE: The Y, M, and C photosensitive drums opposite the transfer rollers stop rotating when the rollers are disengaged.

  • Page 199: Etb Cleaning

    Table 4-4 Calibration timing and duration (continued) Calibration occurrence Duration Type of calibration When you install one or more print 150 seconds (2 minutes, 30 seconds) DMAX, DHALF, color-plane registration cartridges that have not previously (CPR) been installed in the MFP. When 50 pages have been printed 75 seconds DMAX, DHALF...

  • Page 200: Color Misregistration Corrective Control

    Positive potential waste toner Negative potential waste toner Bk cartridge M cartridge C cartridge DC positive bias To primary charging roller Y cartridge DC negative bias DC negative bias DC negative bias Figure 4-30 ETB cleaning The DC controller applies negative bias to the photosensitive drum and both negative and positive biases to each of the four color transfer rollers.

  • Page 201: Color Misregistration Detection

    The DC controller controls the color misregistration unit under the following conditions: ● At power on or door close after cartridge replacement ● After job completion in every specified number of printings ● At a command from the formatter The following is the operational sequence of the color misregistration corrective control: The DC controller forms two pattern images for color misregistration detection with four colors on the ETB when the color misregistration corrective control starts.

  • Page 202: Image Stabilization Control

    DC controller PCB Color misregistration pattern image Color misregistration sensor (R) Pattern image Color misregistration COLOR sensor (L) MISREGISTRATION Light emitter (LED) signal Light receiver (PD) Figure 4-31 Color misregistration detection The DC controller notifies the formatter of each error when the following errors are found during the color misregistration detection.

  • Page 203: Environmental Change Control

    Figure 4-32 Image stabilization control Environmental change control This control calibrates each bias to obtain the best image possible according to environmental changes. The environmental sensor detects the temperature and the humidity. The sensor sends this information to the DC controller in the form of the temperature detection signal (TEMSNS) and the humidity detection signal (HUMSNS).

  • Page 204: Image Density Calibration Control (dmax), Image Halftone Calibration Control (dhalf), Image Density Detection

    The DC controller controls the following biases to prevent image defects when it detects an environmental change: ● Developing bias ● Primary transfer bias ● Secondary transfer bias If the environment sensor detects a temperature of below -30ºC (22ºF) or over 80ºC (176ºF), the DC controller determines this is an "environment sensor abnormality"...

  • Page 205

    The following is the operational sequence of the image density control: The DC controller allows the LED to emit light by sending the LED drive signal. The image density detection control starts. The density pattern images on the ETB reflect the light from the LED and the PD in the sensor receives the light.

  • Page 206: Pickup/feed System

    Pickup/feed system The pickup/feed system consists of various feed rollers that pick up and feed media. This MFP has four pickup sources: the MP tray, tray 2, and the two trays of the 2 X 500-sheet paper feeder. The primary delivery source is the face-down tray. The IPTU and stapler/stacker or 3-bin mailbox can also be used for output.

  • Page 207

    Figure 4-34 Pickup/feed system (1 of 2) ENWW Pickup/feed system 187...

  • Page 208

    The pickup/feed system consists of the following motors and solenoids: ● M1: Yellow (Y) drum motor ● M2: Cyan (C) drum motor ● M3: Magenta (M) drum motor ● M4: Black (K) drum motor ● M5: Fuser motor ● M6: Fuser pressure release motor ●...

  • Page 209

    Figure 4-35 Pickup/feed system (2 of 2) The pickup/feed system consists of the following sensors and switches: ● SR1: Fuser paper sensor ● SR2: Delivery tray paper full sensor ● SR3: Fuser pressure release sensor ● SR4: Multipurpose tray paper sensor ●...

  • Page 210

    ● SR12: Top of page sensor ● SR13: Paper loop sensor 1 ● SR14: Paper loop sensor 2 ● SR8001: Paper reversing sensor ● Media sensor ● CNT0: Cassette paper size detection switch ● CNT1: Cassette paper size detection switch ●...

  • Page 211: Pickup/feed Unit, Cassette Detection And Cassette Media Size Detection

    Pickup/feed unit The pickup/feed block is structured with two blocks. One is the pickup block, which picks up media from the cassette or the multipurpose tray into the MFP one by one. The other one is the feed block, which feeds the picked-up media to the fuser. The following sequence of events occurs: The DC controller rotates the pickup motor (M9), drum motors (M1, M2, M3, M4), ETB motor (M7), and fuser motor (M5) after receiving a print command from the formatter.

  • Page 212: Cassette Pickup Operation, Media Lifting Operation

    determine the actual size of the sheet. If this measured size differs from the size specified by the formatter or the switch combination, the DC controller determines a mismatch. The sheet is ejected from the MFP, and the MFP stops. Cassette pickup operation This MFP uses the pickup arm method for high-speed media pickup.

  • Page 213: Initial Lift, Lift-up During Printing

    The media lifting operation is divided into two procedures: ● Initial lift ● Lifting during printing Initial lift The initial lift begins when the cassette is installed in the MFP and the lifting plate remains in the bottom of the cassette. The DC controller continues driving the M10 until the SR10 detects media. The SR10 lifts the stack surface up to the pickup position under the following conditions: ●...

  • Page 214: Multiple-feed Prevention

    DC controller PCB Cassette pick-up roller Cassette feed roller SR10 Cassette separation roller Lifting plate Lifter Cassette pick-up roller Pick-up position Pick-up position <Before lift-up> <After lift-up> Figure 4-38 Media lifting Multiple-feed prevention This MFP uses the paper separation roller method to prevent multiple feeds. The cassette paper separation roller rotates in the same direction as the cassette feed roller.

  • Page 215: Skew Correction

    the multiple-fed media to be separated and pushed back to the cassette. Figure 4-39 Media lifting on page 195 illustrates this process. Cassette feed roller Cassette pick-up roller Driving force transmitted from cassette feed roller Paper Cassette separation roller Driving force transmitted from the pick-up motor through the torque limiter Normally Multiple-feed...

  • Page 216: Media Detection

    Figure 4-40 Skew correction on page 196 illustrates this process. Registration shutter Front side of printer Registration shutter Paper Figure 4-40 Skew correction Media detection This MFP detects the media types to select the optimum print mode automatically. The DC controller controls the media sensor during the printing operation for this detection.

  • Page 217: Feed Speed Control

    by the receiver. Accordingly, the DC controller identifies the media type: either plain paper, thin paper, thick paper, gloss paper, gloss film, or overhead transparency, and notifies the formatter. Figure 4-41 Media detection on page 197 illustrates this process. DC controller PCB Media sensor Light receiver...

  • Page 218: Fusing And Delivery Block

    Table 4-7 Paper size detection switch settings (continued) Print mode Media type Feed speed Thin Plain paper Normal speed Thin rough Rough paper 1/2 speed Envelope Envelope 1/2 speed Label Label 1/2 speed Thick 1 Thick card/postcard 1/2 speed Thick 2 Thick paper 1/3 speed Gloss 1...

  • Page 219: Loop Control

    The fusing sleeve and the fusing pressure roller fuse the toner onto the media. The media is then delivered from the fuser. The image fusing media sensor (SR1) detects the media delivered from the fuser, and then delivers the media to the face-down tray or other output device. NOTE: If the face-down tray is full of media, the delivery tray paper-full sensor (SR2) detects that it is full.

  • Page 220: Fusing Pressure Release Mechanism

    Figure 4-42 Loop control Fusing pressure release mechanism This mechanism automatically releases the fusing pressure to improve media removal and prevent fusing pressure roller deformation. The DC controller rotates the cam driven by the fuser pressure release motor (M6) at the prescribed timing.

  • Page 221: Duplex Feed Unit

    Figure 4-43 Fusing pressure release Duplex feed unit This MFP is equipped with an integrated duplexing unit. The duplexing reverse/duplexing feed unit is structured into two blocks. One is the duplexing reverse block, that reverses paper in preparation for duplex printing. The second is the duplexing feed block, which delivers the reversed paper to the registration roller.

  • Page 222: Duplexing Reverse/duplexing Feed Operation

    Duplexing unit Figure 4-44 Duplex feed unit The duplexing driver PCB controls the duplexing unit. An 8-bit microcomputer in the duplexing driver PCB controls the sequences of the duplexing unit and serial communication with the DC controller. The DC controller sends a command to the duplexing driver PCB at the necessary time. The duplexing driver PCB drives each load, such as motors and solenoids, depending on these commands.

  • Page 223

    Figure 4-46 Duplexing feed Media that has been printed on one side passes through the fuser. The DC controller sends the reversing command to the duplexing driver at the specified time after the top of page sensor (SR12) detects the leading edge of paper. The prescribed time is when the media arrives at the fuser.

  • Page 224: Jam Detection

    When the duplexing driver receives the reversing command, it turns on the duplexing solenoid (SL8001) to move the duplexing deflector. The duplexing driver also rotates the reversing motor (M8001) clockwise to feed the media to the duplexing unit. The DC controller sends the duplexing pickup command to the duplexing driver after the prescribed time from when the fuser paper sensor (SR1) detected the trailing edge of paper.

  • Page 225: Pickup Delay Jam, Pickup Stationary Jam, Delivery Delay Jam, Door Open Jam, Residual Paper Jam

    ● Delivery tray paper-full sensor (SR2) ● Reversing paper sensor (SR8001) The microprocessor on the DC controller checks for jams by timing the media as it moves past these sensors. If the media does not pass the sensor in a specific period of time, the transport process is stopped (the motors are turned off and the rollers no longer rotate) and a jam message displays on the product control panel display.

  • Page 226: Reversing Unit Jam 1, Reversing Unit Jam 2, Duplexing Pickup Unit Jam 1

    Reversing unit jam 1 If the paper reversing sensor (SR8001) does not detect the leading edge of the media within a specified period after the duplexing driver receives a reversing command from the MFP, the microprocessor on the DC controller PCB determines that a reversing unit jam 1 has occurred. The transport process stops and a jam message appears on the product control panel display.

  • Page 227: Electrical System, Scanner System

    Scanner system The scanner system adds copying and sending functions to the standard MFP printing function. The scanner assembly consists of an automatic document feeder (ADF) and a flatbed scanner glass surface. Original documents that are fed through the ADF are delivered to the ADF output bin, which is underneath the ADF input tray.

  • Page 228: Motors And Fans

    Figure 4-49 Scanner assembly electrical structure Motors and fans The scanner assembly has five motors and two fans. Three of the motors are stepping motors, which drive the components inside the scanner assembly. The remaining two motors are DC motors, which drive the two fans.

  • Page 229: Optical Assembly

    Name Purpose Type Rotation Failure detection Flatbed fan Cools the scanner DC motor Clockwise lamp and the CCD ADF fan Cools the motors DC motor Clockwise Optical assembly The optical assembly contains the scan carriage and the scanner glass. The scan carriage contains the lamp, five mirrors, a lens, and the CCD.

  • Page 230: Adf Feed System

    Figure 4-51 Scan carriage movement ADF feed system Pages from the original document enter the ADF from the ADF input tray. A separation roller and separation pad work together to separate the top sheet from the stack. The page passes through a set of registration rollers and two sets of feed rollers that advance the page.

  • Page 231: Adf Jam Detection, Residual Media Jam, Adf Pickup Jam

    Figure 4-52 ADF paper path and sensors ADF jam detection When the sensors inside the ADF detect a jam, the feed and read motors immediately stop and send a signal to the scanner controller PCB, which notifies the formatter. An ADF Paper Jam message displays on the product control panel display.

  • Page 232: Registration Sensor Jam, Read Sensor Jam, Exit Sensor Jam, Adf Cover-open Jam, Adf Open Jam

    Registration sensor jam If the registration sensor does not detect the trailing edge of the media after the leading edge reaches the scan ready position, the scanner controller PCB determines that an ADF paper jam has occurred. Also, when the scanner duplexer is being used, if the registration sensor does not detect the leading edge of the media after a specific period of time after media enters the duplexer, the scanner controller PCB determines that a jam has occurred.

  • Page 233: X 500-sheet Paper Feeder

    2 X 500-sheet paper feeder The MFP includes a 500-sheet paper tray (tray 2) and a larger paper deck that contains two 500- sheet feeders (trays 3 and 4). The paper path is shown below. Figure 4-53 2 X 500-sheet feeder paper path The paper feeder driver PCB controls the 2 X 500-sheet feeder operation sequences.

  • Page 234: Pickup And Feed Operations

    Figure 4-54 2 X 500-sheet feeder I/O block diagram Pickup and feed operations The paper pickup and feeding processes for the 2 X 500-sheet feeder are identical to the processes used for tray 2. See Figure 4-54 2 X 500-sheet feeder I/O block diagram on page 214.

  • Page 235

    Figure 4-55 2 X 500-sheet feeder pickup and feed diagram The DC controller receives a print command from the formatter and sends a pickup command to the paper feeder driver. The paper feeder driver rotates the pickup motor (M8101) in the paper feeder, and the feed roller and the paper feeder separation roller start to rotate.

  • Page 236: X 500-sheet Jam Detection

    NOTE: Paper-size detection, multiple-feed prevention, and jam detection for the 2 X 500- sheet feeder function in the same manner as the rest of the MFP. NOTE: Paper lifting operation for the 2 X 500-sheet feeder is the same as that of tray 2, except that the paper feeder driver PCB controls this operation instead of the DC controller.

  • Page 237: Iptu, Output Devices

    Output devices This section describes the theory of operation for these components: ● IPTU ● 3-bin mailbox system ● Stapler/stacker system IPTU The IPTU (intermediate paper transfer unit) is installed at the face-down delivery area of the MFP. Its function is to transfer paper to the installed output device, such as the stapler/stacker and the 3-bin mailbox.

  • Page 238: Iptu Transfer Operation

    Intermediate paper transfer DC controller PCB driver PCB Top of page sensor Delivery sensor +24V Door open detection switch Feed motor 1 Feed motor 2 Figure 4-57 IPTU PCB flow IPTU transfer operation The IPTU delivers the fused paper to the output device in the operation shown in Figure 4-58 IPTU transfer operation on page 219.

  • Page 239

    Figure 4-58 IPTU transfer operation The paper, which has completed the fusing operation, is transferred to the IPTU. The DC controller sends the drive start command to the IPTD when the fusing paper sensor (SR1) detects the leading edge of the paper. The IPTD turns feed motor 1 (M8301) and feed motor 2 (M8302) ON to rotate the feed rollers upon receiving the drive start command.

  • Page 240: Iptu Jam Detection, Bin Mailbox System, Pickup Delay Jam, Pickup Stationary Jam, Delivery Delay Jam

    IPTU jam detection The IPTU is equipped with paper detection sensors to detect the presence of paper and to determine operational status: ● Top of page sensor (SR8301) ● Delivery sensor (SR8302) The CPU on the IPTD PCB determines a paper jam by checking whether paper is present at the sensors at the checking timing.

  • Page 241

    Figure 4-59 3-bin mailbox operation ENWW Output devices 221...

  • Page 242: Stacker Mode, Mailbox Mode, Function-separator Mode, Jam Detection

    Stacker mode When configured for stacker mode, the 3-bin mailbox fills the bottom output bin (bin 3) first and then fills the next highest bin. Figure 4-60 Media flow when using the stacker mode Mailbox mode When configured for mailbox mode, the 3-bin mailbox stacks print media in each bin as determined by the print job specifications.

  • Page 243: Power-on Sequence, Feed-delay Jam, Feed-stationary Jam, Residual-media Jam

    time or that media is not present at the expected time. The microprocessor on the MBM-driver PCA notifies the formatter that a jam has occurred. When a jam is detected, the transport process stops and a 13.XX.YY JAM message appears on the control-panel display.

  • Page 244: Mbm Driver

    Power ON CPU initialization MBM ID check Optional interface communication preparation Failure check Optional interface communication start Feed motor initial drive Residual paper check Door open check Standby Figure 4-62 Power-on sequence MBM driver The MBM driver controls the operational sequence of the MBM. When the MFP is turned on and DC power is supplied to the MBM driver, the MBM driver communicates with the formatter to start an operational control.

  • Page 245

    MBM driver PS1501 Inlet sensor Motor driver M1501 IC1504 SNS PCB PS1504 Feed motor Bin#1 paper sensor LED driver Q1507 PS1506 Q1508 Bin#2 paper User LED sensor Solenoid driver SL1502 PS1503 Q1504 Bin#1 full IC1501 sensor Inlet deflector solenoid PS1505 Bin#2 full Solenoid driver sensor...

  • Page 246

    Table 4-8 MBM driver components (continued) Part Purpose Sensors Inlet sensor (PS1501) Detects paper jams Bin 1 paper sensor (PS1504) Detects whether bin 1 contains paper Bin 2 paper sensor (PS1506) Detects whether bin 2 contains paper Bin-1-full sensor (PS1503) Detects whether bin 1 is full Bin-2-full sensor (PS1505) Detects whether bin 2 is full...

  • Page 247: Mbm Switches And Sensors

    MBM switches and sensors PS1503 PS1507 PS1505 PS1504 PS1506 PS1501 SW1501 PS1501 Inlet sensor PS1503 Bin 1 paper-full sensor PS1504 Bin 1 paper sensor PS1505 Bin 2 paper-full sensor PS1506 Bin 2 paper sensor PS1507 Bin 3 paper-full sensor SW1501 Engine connection switch ENWW Output devices 227...

  • Page 248: Mbm Pcbs

    MBM PCBs LED PCB Sensor PCB MBM driver PCB 228 Chapter 4 Theory of operation ENWW...

  • Page 249: Mbm List Of Signals

    MBM list of signals Table 4-9 List of signals for the MBM driver PCB Connector Abbreviation Logic Signal name J1501 +24VA +24VA PWRON POWER-ON DETECTION signal CAN-L CAN-RECEIVE signal CAN-H CAN-RECEIVE signal SPD-UP SPEED-UP DETECTION signal +24VA J1502 BIN1–FULL BIN1 PAPER-FULL signal BIN1-PAP BIN1 PAPER DETECTION signal BIN2-FULL...

  • Page 250: Stapler/stacker System

    Table 4-9 List of signals for the MBM driver PCB (continued) Connector Abbreviation Logic Signal name J1505 FD-AD Pulse FEED-MOTOR DRIVE signal FD-AND Pulse FEED-MOTOR DRIVE signal FD-BD Pulse FEED-MOTOR DRIVE signal FD-BND Pulse FEED-MOTOR DRIVE signal J1506 PWRON-OUT POWER-ON OUTPUT signal CAN-L-OUT CAN-SEND signal CAN-H-OUT...

  • Page 251

    Figure 4-64 Stapler/stacker paper flow Power-on sequence The following diagram shows the operational sequence of the stapler/stacker from power-on to standby mode. ENWW Output devices 231...

  • Page 252: Staple Mode

    Figure 4-65 Stapler/stacker power-on sequence Staple mode In this mode, up to 30 sheets are stapled in one set and are then stacked in the delivery tray. 232 Chapter 4 Theory of operation ENWW...

  • Page 253

    The feed operation of this mode is described in the following procedure. The printer engine sends a paper-delivery signal to the formatter when the leading edge of the print paper reaches the fixing-delivery sensor. When the formatter receives the signal, it sends a delivery-notice command to the stapler/ stacker driver.

  • Page 254

    After the disengaging operation of the feed rollers is normal, the stapler/stacker driver drives the jogger motor (M1302) and shifts the jogger guide from the turn-out position to the waiting position. Jogger guide Belt Waiting position Turn-out position (Top view) Figure 4-67 Jogger guide When the jogger guide is shifted to the waiting position, the stapler/stacker driver rotates M1301...

  • Page 255

    After the feed speed of the stapler/stacker is changed, the stapler/stacker driver rotates M1301 counter-clockwise again to disengage the upper and the lower disengagement rollers. Jogger guide Upper delivery guide Paddle Upper delivery roller Inlet roller Delivery roller Lower delivery roller PS1301 Delivery tray...

  • Page 256

    The stapler/stacker driver changes the speed of the feed motor (M1303). ● If it is not the last sheet of paper, the driver drives the feed motor at the printer speed. ● If it is the last sheet of paper, the driver stops the feed motor. The stapler/stacker driver drives the motors to perform the alignment operation.

  • Page 257

    Jogger guide Jogger guide Paper Paper Clamp Paddle Staple Waiting position Alignment position (Top view) Figure 4-72 Staple-mode feed operation The stapler/stacker driver performs the staple operation. After the completion of the staple operation, the stapler/stacker driver rotates the paddle motor (M1303) counter-clockwise to engage the upper and the lower delivery rollers.

  • Page 258: Jogger Operation

    The stapler/stacker driver shifts the jogger guide to the turn-out position. This allows the paper pile on the jogger guide to fall onto the delivery tray. Jogger guide Upper delivery roller PS1301 Lower delivery roller Delivery tray Figure 4-73 Staple-mode feed operation Jogger guide Jogger guide Paper...

  • Page 259

    The stapler/stacker driver controls the jogger motor (M1302), which allows the jogger guide to move so it can align the edge of the paper. Staple stacker driver PCB M1302 Belt Jogger gear Jogger guide Figure 4-75 Jogger operation The jogger operation is explained in the following procedure. Before the start of the operation, the jogger guide is stationed at the home position (turn-out position).

  • Page 260

    At the start of the feeding process in staple mode, the stapler/stacker driver rotates M1302 counter-clockwise after it detects that the upper deliver roller is disengaged. It then moves the jogger guide to the waiting position. Waiting potion Print paper (Top view) Figure 4-77 Jogger operation...

  • Page 261

    The stapler/stacker driver rotates M1302 clockwise and moves the jogger guide 3 mm out from the aligned position (loosen alignment). The stapler/stacker driver performs the paddle operation during the loosen alignment. Loose alignment position Alignment position Print paper (Top view) Figure 4-79 Paddle operation After the completion of the paddle operation, the stapler/stacker driver changes its controls...

  • Page 262: Jogger Home-position Detection

    After the completion of the staple operation, the stapler/stacker driver rotates M1302 clockwise and moves the jogger guide to its home position. This allows the paper pile on the jogger guide to fall into the delivery tray. Home position Print paper (Top view) Figure 4-80 Jogger operation...

  • Page 263

    Stapler/Stacker driver PCB Jogger home position detection flag PS1304 < Jogger home position > < During jogger operation > PS1304 PS1304 Jogger home position Jogger home position detection flag detection flag Figure 4-81 Jogger home position NOTE: At the start of the detection, the stapler/stacker driver rotates the jogger motor (M1302) clockwise to detect its home position.

  • Page 264

    Stacker mode In stacker mode, the paper is stacked in the paper delivery tray without being stapled. The feed operation in the stacker mode is explained in the following procedure. The printer engine sends a paper-delivery signal to the formatter after the leading edge of the paper reaches the fixing-delivery sensor.

  • Page 265: Stapler Unit, Staple Home Position Detection

    If the paper-delivery sensor (PS1302) does not detect the trailing edge of the paper within a prescribed period of time after the feed motor has started its drive after the staple operation, the CPU detects a delivery stationary jam. ● Residual-paper jam If the paper inlet sensor (PS1301) detects paper during the initial drive period, the CPU detects a residual-paper jam.

  • Page 266: Self-priming Detection, Staple Level Detection

    During the detection, the stapler/stacker driver rotates the staple motor (M1304) clockwise for a prescribed period of time. If the /HP signal does not change from "H" to "L" to "H", the driver detects a stapler failure, stops the loads, and notifies formatter. NOTE: If the /HP signal does not indicate "H"...

  • Page 267: Stapler/stacker Switches And Sensors

    Stapler/stacker switches and sensors PS1304 PS1305 PS1306 PS1301 PS1303 PS1302 SW1301 Figure 4-84 Switches and sensors Table 4-10 Switches and sensors (part 1) SW1301 Door-open switch PS1301 Paper-inlet sensor PS1302 Paper-delivery sensor PS1303 Delivery-roller disengaging sensor PS1304 Jogger home-position sensor PS1305 Paddle home-position sensor PS1306...

  • Page 268

    Table 4-11 Switches and sensors (part 2) Name Purpose Motors Paddle motor (M1301) Rotates the paddle (clockwise); disengages the delivery rollers (counter-clockwise) Jogger motor (M1302) Shifts the jogger guide (clockwise: open; counterclockwise: close) Feed motor (M1303) Rotates the inlet roller / delivery roller Stapler motor (M1304) Staple operation (rotation of staple cam) Solenoids...

  • Page 269: Stapler/stacker Motors, Solenoid, And Fan

    Stapler/stacker motors, solenoid, and fan M1302 M1303 M1301 SL1301 FM1301 Figure 4-85 Motors, solenoid, fan Table 4-12 Motors, solenoid, fan M1301 Paddle motor M1302 Jogger motor M1303 Feed motor SL1301 Clamp solenoid FM1301 Cooling fan ENWW Output devices 249...

  • Page 270: Stapler/stacker Pcbs

    Stapler/stacker PCBs Figure 4-86 PCBs Table 4-13 PCBs LED PCB Staple stacker driver PCB 250 Chapter 4 Theory of operation ENWW...

  • Page 271

    Figure 4-87 Cross-sectional view (part 1) Table 4-14 Cross-sectional view (part 1) Jogger guide Paddle Inlet roller Cooling fan Upper delivery roller Lower delivery roller Delivery tray paper-full sensor Paper delivery tray ENWW Output devices 251...

  • Page 272

    Stapler/Stacker driver PCB M1302 M1303 PS1304 M1301 PS1303 Jogger guide PS1305 Paddle Upper delivery roller Upper delivery Lower delivery roller guide Stamp Inlet roller PS1302 PS1306 PS1301 Stapler unit SL1301 Delivery tray Figure 4-88 Cross-sectional view (part 2) 252 Chapter 4 Theory of operation ENWW...

  • Page 273: Stapler/stacker Driver Pcb

    Table 4-15 Cross-sectional view (part 2) M1301 Paddle motor M1302 Jogger motor M1303 Feed motor SL1301 Clamp solenoid PS1301 Paper inlet sensor PS1302 Delivery sensor PS1303 Delivery-roller disengaging sensor PS1304 Jogger home-position sensor PS1305 Paddle home-position sensor PS1306 Delivery-full sensor Stapler/stacker driver PCB The stapler/stacker driver controls the operational sequence of the stapler/stacker.

  • Page 274

    Stapler/Stacker driver PCB PS1302 Paper delivery Motor driver Paddle motor M1301 sensor IC1302 PS1301 Motor driver Paper inlet Jogger motor M1302 IC1303 sensor PS1303 Delivery roller Motor driver Feed motor M1303 disengaging IC1309 sensor PS1304 Jogger Cooling fan home position FM1301 sensor IC1304...

  • Page 275: Stapler/stacker Driver List Of Signals

    Stapler/stacker driver list of signals Table 4-16 Stapler/stacker driver list of signals Connector Abbreviation Logic Signal name J1301 +24V +24V supply +24V +24V supply POWERON POWER ON signal CAN-L CAN RECEIVE signal CAN-H CAN RECEIVE signal /SP-UP SPEED UP signal +24V +24V supply J1302...

  • Page 276

    Table 4-16 Stapler/stacker driver list of signals (continued) Connector Abbreviation Logic Signal name J1307 FLASH-OUT FLASH ROM RECORD signal FLASH-MD0 OPERATION MODE SPECIFYING signal FLASH-CLK FLASH ROM RECORD signal FLASH-MD2 OPERATION MODE SPECIFYING signal FLASH-IN FLASH ROM RECORD signal FLASH-ACT0 FLASH ROM RECORD signal +5V supply RESET signal...

  • Page 277

    Table 4-16 Stapler/stacker driver list of signals (continued) Connector Abbreviation Logic Signal name J1313 +5V supply PDL-HP PADDLE HOME POSITION DETECTION signal +5V supply FULL DELIVERY TRAY PAPER FULL signal J1314 PDL-BND PADDLE MOTOR DRIVE signal PDL-BD PADDLE MOTOR DRIVE signal PDL-AND PADDLE MOTOR DRIVE signal PDL-AD...

  • Page 278

    258 Chapter 4 Theory of operation ENWW...

  • Page 279: 5 Removal And Replacement

    Removal and replacement This chapter contains information about the following topics: ● Removal and replacement strategy ● Service approach ● User-replaceable parts ● Covers, doors, and external panels ● Main assembly (internal assemblies) ● Motors and fans ● PCBs ● Switches, contacts, and sensors ●...

  • Page 280: Required Tools

    Removal and replacement strategy This chapter describes how to remove, replace, and reassemble the major assemblies of the MFP. Replacement is generally the reverse of removal. Notes are provided to assist with any difficult replacement procedures. To identify the left side and right side of the MFP, face the product control panel. WARNING! Unplug the power cord from the power outlet (at the wall receptacle) before attempting to service the MFP.

  • Page 281: Before Performing Service, After Completing Service

    Before performing service ● If possible, print a menu map and configuration page. ● Remove all of the accessories and print media, the print cartridges, and tray 2 from the MFP. ● Unplug the power cord from the power outlet at the wall receptacle. ●...

  • Page 282: Screws Used In The Mfp

    Screws used in the MFP The following table describes the screws that are used in the MFP and provides guidelines to help determine where each type of screw is used. The screws can vary in length depending on the thickness of the material that is being fastened. Always note where each type of screw is located and replace each one in its original location.

  • Page 283: Service Approach

    After a faulty part is located, the MFP can usually be repaired at the assembly level by replacing field replaceable units (FRUs). Some mechanical assemblies might need to be repaired at the subassembly level. Hewlett-Packard does not support replacement of components on the printed circuit assembles.

  • Page 284: User-replaceable Parts

    User-replaceable parts The procedures in this section describe the removal and replacement of the following user- replaceable parts: ● Print cartridges ● Control panel overlays ● Control panel ● Intermediate paper transfer unit (IPTU) ● Stapler/stacker ● Staple cartridge ● 3-bin mailbox ●...

  • Page 285: Print Cartridges

    Print cartridges Open the right lower cover. Figure 5-1 Remove the print cartridges (1 of 3) ENWW User-replaceable parts 265...

  • Page 286

    Open the ETB. Figure 5-2 Remove the print cartridges (2 of 3) Grasp each print cartridge by the blue handles, and remove it from the MFP. Figure 5-3 Remove the print cartridges (3 of 3) 266 Chapter 5 Removal and replacement ENWW...

  • Page 287: Control Panel Overlays, Control Panel

    Control panel overlays Use a small, flat-blade screwdriver to release the two product control panel overlays (callout 1). Figure 5-4 Remove the control panel overlays Control panel Remove the control panel overlays. See Control panel overlays on page 267. Use a flat-blade screwdriver to remove the product control panel. Insert the blade of the screwdriver into the tabs (callout 1) and twist gently to release the top of the control panel.

  • Page 288

    Disconnect one connector (callout 2). Figure 5-6 Remove the control panel (2 of 3) Grasp the control panel surround and lift it toward you. Figure 5-7 Remove the control panel (3 of 3) 268 Chapter 5 Removal and replacement ENWW...

  • Page 289: Intermediate Paper Transfer Unit (iptu)

    Intermediate paper transfer unit (IPTU) Lift the handle on the IPTU. Figure 5-8 Remove the IPTU (1 of 3) Slide the IPTU outward. Figure 5-9 Remove the IPTU (2 of 3) ENWW User-replaceable parts 269...

  • Page 290: Stapler/stacker

    Lift the IPTU upward and remove it from the MFP. Figure 5-10 Remove the IPTU (3 of 3) Stapler/stacker Press and hold the release button on the top of the stapler/stacker. Figure 5-11 Remove the stapler/stacker (1 of 5) 270 Chapter 5 Removal and replacement ENWW...

  • Page 291

    Pull the stapler/stacker outward. Figure 5-12 Remove the stapler/stacker (2 of 5) Disconnect the connector (callout 1) from the MFP. Figure 5-13 Remove the stapler/stacker (3 of 5) ENWW User-replaceable parts 271...

  • Page 292: Staple Cartridge

    Lift the stapler/stacker slightly and remove it from the MFP. Figure 5-14 Remove the stapler/stacker (4 of 5) The IPTU remains in place. Figure 5-15 Remove the stapler/stacker (5 of 5) Staple cartridge Press down the release button on the stapler/stacker and pull the assembly outward. See Stapler/stacker on page 270.

  • Page 293

    Open the staple cartridge cover. Figure 5-16 Replace the staple cartridge (1 of 3) Grasp the green staple cartridge handle and pull the old staple cartridge upward. Figure 5-17 Replace the staple cartridge (2 of 3) ENWW User-replaceable parts 273...

  • Page 294: Bin Mailbox

    Pull the old staple cartridge out of the stapler assembly. Insert the new staple cartridge into the stapler assembly and push down on the green handle until the assembly snaps into place. Close the staple cartridge cover, and slide the stapler/stacker into the MFP. Figure 5-18 Replace the staple cartridge (3 of 3) 3-bin mailbox...

  • Page 295: Etb Assembly, Removing

    Disconnect the cable (callout 1). Figure 5-20 Remove the 3-bin mailbox (2 of 3) Lift the 3-bin mailbox, tilt it upward, and pull to remove it from the MFP. Figure 5-21 Remove the 3-bin mailbox (3 of 3) ETB assembly, removing Open the right lower cover.

  • Page 296

    Open the ETB assembly by pulling the green handle. Figure 5-22 Remove the ETB assembly (1 of 4) Depress the blue tabs on the right and left sides of the ETB (callout 2), and then lift the ETB (callout 1) out of the MFP. Figure 5-23 Remove the ETB assembly (2 of 4) 276 Chapter 5 Removal and replacement...

  • Page 297

    Detail of right lever (callout 3). Figure 5-24 Remove the ETB assembly (3 of 4) — right lever Detail of left lever (callout 4). Figure 5-25 Remove the ETB assembly (4 of 4) — left lever ENWW User-replaceable parts 277...

  • Page 298: Mp Tray Pickup Assembly

    MP tray pickup assembly Open the MP tray pickup assembly. Press the two metal tabs on either side to unlock the tray. Figure 5-26 Remove the MP tray pickup assembly (1 of 2) Slide the assembly off the rails. Figure 5-27 Remove the MP tray pickup assembly (2 of 2) Trays 2, 3, and 4 Open the tray until it stops.

  • Page 299: Adf Input Tray

    ADF input tray Open the ADF top cover. Figure 5-28 Remove the ADF input tray (1 of 3) Flex the pivot pin (near the control panel) away from the mounting hole in the ADF chassis. Figure 5-29 Remove the ADF input tray (2 of 3) ENWW User-replaceable parts 279...

  • Page 300

    Pull the tray away from the pivot pin at the right side of the input tray, and remove the ADF input tray. Figure 5-30 Remove the ADF input tray (3 of 3) TIP: When reinstalling the ADF input tray, insert the rear pin first, as shown in the following photograph.

  • Page 301: Adf Pickup And Feed Rollers

    ADF pickup and feed rollers Open the ADF top cover. Figure 5-31 Remove the ADF pickup and feed rollers (1 of 3) Push down on the locking tab (callout 1), and rotate the top of the assembly away from the ADF. Figure 5-32 Remove the ADF pickup and feed rollers (2 of 3) ENWW...

  • Page 302

    Release the front (gear end) of the roller assembly drive shaft (callout 2), and slide (callout 3) the assembly toward the front of the MFP to remove it. Figure 5-33 Remove the ADF pickup and feed rollers (3 of 3) 282 Chapter 5 Removal and replacement ENWW...

  • Page 303: Adf Separation Pad

    ADF separation pad Open the ADF top cover. Figure 5-34 Remove the ADF separation pad (1 of 4) Locate the ADF separation pad (callout 1). Figure 5-35 Remove the ADF separation pad (2 of 4) ENWW User-replaceable parts 283...

  • Page 304

    Raise the separation pad frame assembly using the green lever, and push the bottom edge (white plastic) of the separation pad away from the frame. Figure 5-36 Remove the ADF separation pad (3 of 4) Push the separation pad out of the frame. Figure 5-37 Remove the ADF separation pad (4 of 4) 284 Chapter 5 Removal and replacement...

  • Page 305: Adf Delivery Guide (clear Mylar Sheet)

    ADF delivery guide (clear mylar sheet) NOTE: Replacement ADF delivery guide mylar sheets are located in an envelope behind the white mylar sheet. Open the ADF/scanner assembly and release the two tabs at the top and bottom of the ADF delivery guide cover.

  • Page 306

    If it is difficult to replace the mylar strips, pull the ADF delivery guide cover hinges off the hinge pins (callout 2) to remove the cover. Figure 5-40 Remove the ADF delivery guide (3 of 3) Reinstallation tip: The clear mylar sheet is keyed with a small notch at the top. Be sure to align the notch with the round pin that is on the holder.

  • Page 307: Face-down Tray Assembly

    Face-down tray assembly Loosen the two captive screws (callout 1) and remove the face-down tray (callout 2). Figure 5-42 Remove the face-down tray assembly ENWW User-replaceable parts 287...

  • Page 308: Fuser

    Fuser NOTE: Do not attempt to disassemble the fuser sleeve assembly. This part cannot be serviced in the field. Open the right top cover (callout 1) and the fuser cover (callout 2). Figure 5-43 Remove the fuser (1 of 2) Gently lift the two purple handles (callout 3).

  • Page 309: Tray 2, 3, Or 4 Pickup And Feed Rollers

    Tray 2, 3, or 4 pickup and feed rollers Remove the paper tray. See Trays 2, 3, and 4 on page 278. Figure 5-45 Remove the tray 2, 3, or 4 pickup and feed rollers (1 of 2) Squeeze the tabs to release the pickup roller (left) and feed roller (right). Figure 5-46 Remove the tray 2, 3, or 4 pickup and feed rollers (2 of 2) Slide the rollers off the shaft.

  • Page 310: Mp Tray Pickup Roller

    MP tray pickup roller Remove the MP tray pickup assembly. See MP tray pickup assembly on page 278. Slide the white tabs to the middle. Figure 5-47 Remove the MP tray pickup roller (1 of 3) Rotate the front cover away from the tray. Figure 5-48 Remove the MP tray pickup roller (2 of 3) 290 Chapter 5 Removal and replacement...

  • Page 311

    Remove the pickup roller by pulling the tabs outward and lifting the roller from the shaft. Figure 5-49 Remove the MP tray pickup roller (3 of 3) TIP: When reinstalling the MP tray pickup roller, insert the round tabs toward the front of the tray.

  • Page 312: Tray 2 Separation Roller

    Figure 5-51 Replace the tray cover TIP: When reinstalling the tray front cover, insert the slots into the tabs, rotate the cover upward, and snap it into place. Tray 2 separation roller Remove the MP tray pickup assembly. See MP tray pickup assembly on page 278.

  • Page 313

    Remove the tray 2 separation roller by depressing the blue tab and removing it from the shaft. Replace the tray 2 separation roller. Figure 5-53 Remove the tray 2 separation roller (2 of 3) Close the separation roller cover by sliding the tabs outward before closing the cover. Figure 5-54 Remove the tray 2 separation roller (3 of 3) ENWW...

  • Page 314: Tray 3 Or 4 Separation Rollers

    Tray 3 or 4 separation rollers Open tray 3 or 4. Open the lower jam access door. Figure 5-55 Remove the tray 3 or 4 separation rollers (1 of 2) Remove the separation roller by depressing the blue tab and removing the roller from the shaft. Figure 5-56 Remove the tray 3 or 4 separation rollers (2 of 2) 294 Chapter 5 Removal and replacement...

  • Page 315: Scanner Filter Cover And Scanner Filter

    Scanner filter cover and scanner filter Using the thumb notch at the top of the filter cover plate, remove the scanner filter cover at the rear of the MFP. Figure 5-57 Remove the scanner filter (1 of 2) Remove the filter. Figure 5-58 Remove the scanner filter (2 of 2) Clean the filter and replace it in the frame.

  • Page 316: Adf Hinge Flap

    ADF hinge flap Use a small, flat-blade screwdriver to release the six locking tabs along the top of the ADF hinge flap. Figure 5-59 Remove the ADF hinge flap Pull the ADF hinge flap away from the MFP to remove it. NOTE: To position the ADF hinge flap correctly when reinstalling it, insert the locator pins situated in the middle of the plastic mounting bracket into the first row of slots above...

  • Page 317: Formatter Board

    Formatter board Locate the gray formatter pressure release tabs on the formatter board in the rear of the MFP. Gently squeeze the tabs and pull them out of the formatter. ENWW User-replaceable parts 297...

  • Page 318

    Gently pull on the black tabs at the top and bottom of the formatter board to pull the board from the MFP. Figure 5-60 Remove the formatter (1 of 2) Place the formatter board on a clean, flat, grounded surface. Figure 5-61 Remove the formatter (2 of 2) 298 Chapter 5 Removal and replacement...

  • Page 319: Hard Drive

    Hard drive WARNING! he MFP contains components that are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation. If an ESD-protected workstation is not available, discharge body static by grasping the MFP chassis before touching an ESD-sensitive component. Ground the MFP chassis before servicing the MFP. Remove the formatter board from the MFP.

  • Page 320: Dimms

    DIMMs The formatter board contains three DIMMs that can be removed and replaced. WARNING! The MFP contains components that are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation. If an ESD-protected workstation is not available, discharge body static by grasping the MFP chassis before touching an ESD-sensitive component.

  • Page 321

    Lift the DDR DIMM at an angle, and pull it out. Holding the new DIMM by the edges, align the notch on the DIMM with the bar in the DIMM slot at an angle and firmly press the DIMM into the slot until it is fully seated. When installed correctly, the metal contacts are not visible.

  • Page 322

    Holding the new DIMM by the edges, align the notch on the DIMM with the bar in the DIMM slot at an angle and firmly press the DIMM into the slot until it is fully seated. When installed correctly, the metal contacts are not visible. Push down on the DIMM until both latches engage the DIMM.

  • Page 323

    Squeeze the small black tabs on the rear of the formatter board to disengage the hard-drive cage. Swing the hard drive cage up 90 degrees and then lift the hard-drive cage from the formatter. Note how the curved pieces at the bottom the hard-drive cage engage the anchor slots on the accessory-card cage.

  • Page 324

    Spread the latches on either side of the DIMM slot apart. Lift the DIMM up at an angle, and pull it out. Holding the new DIMM by the edges, align the notch on the DIMM with the bar in the DIMM slot at an angle and firmly press the DIMM into the slot until it is fully seated.

  • Page 325

    Reconnect both cables to the hard drive. Insert the curved pieces at the bottom the hard-drive cage into the anchor slots on the accessory-card cage, and then swing the hard-drive cage down onto the formatter board until the hard-drive-cage anchor pokes through the hole in the formatter and locks. ENWW User-replaceable parts 305...

  • Page 326: Flash Memory Card (firmware)

    Flash memory card (firmware) WARNING! The MFP contains components that are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation. If an ESD-protected workstation is not available, discharge body static by grasping the MFP chassis before touching an ESD-sensitive component.

  • Page 327: Fax Accessory

    Fax accessory WARNING! The MFP contains components that are sensitive to electrostatic discharge (ESD). Always perform service work at an ESD-protected workstation. If an ESD-protected workstation is not available, discharge body static by grasping the MFP chassis before touching an ESD-sensitive component. Ground the MFP chassis before servicing the MFP. Use this procedure to install or replace the analog fax accessory.

  • Page 328

    Push the fax accessory into place, and make sure that the fax accessory is securely connected to the formatter. Figure 5-68 Remove the fax accessory (3 of 5) Reinstall the fax restraining strap. Figure 5-69 Remove the fax accessory (4 of 5) 308 Chapter 5 Removal and replacement ENWW...

  • Page 329

    Align the formatter board in the tracks at the top and bottom, and slide the board back into the MFP. Figure 5-70 Remove the fax accessory (5 of 5) ENWW User-replaceable parts 309...

  • Page 330: Covers, Doors, And External Panels

    Covers, doors, and external panels The procedures in this section describe the removal and replacement of the following components: ● Face-down tray assembly ● Delivery cover assembly ● Rear cover assembly ● Left cover assembly ● Front cover assembly ● Tray 1 ●...

  • Page 331

    Figure 5-72 Cover, door, and panel locations (2 of 2) Front cover Upper right cover Right upper door Right lower cover Multipurpose tray Multipurpose pickup unit Rear cover Delivery upper cover Face-down tray assembly Left cover ENWW Covers, doors, and external panels 311...

  • Page 332: Delivery Cover Assembly, Face-down Tray Assembly

    Face-down tray assembly Loosen the two captive screws (callout 1) and remove the face-down tray (callout 2). ▲ Figure 5-73 Remove the face-down tray assembly Delivery cover assembly Remove the face-down tray assembly. See Face-down tray assembly on page 312. Pinch the projection (callout 1) and slide the delivery cover assembly (callout 2) forward.

  • Page 333: Rear Cover Assembly

    Rear cover assembly Remove the three screws (callout 1). Figure 5-75 Remove the rear cover assembly (1 of 4) Unhook the three claws (callout 2). Figure 5-76 Remove the rear cover assembly (2 of 4) ENWW Covers, doors, and external panels 313...

  • Page 334

    Unhook the claws (callout 3), and then remove the rear cover assembly (callout 4). Figure 5-77 Remove the rear cover assembly (3 of 4) Orientation view of rear of MFP with rear cover removed and side covers open. Figure 5-78 Remove the rear cover assembly (4 of 4) 314 Chapter 5 Removal and replacement ENWW...

  • Page 335: Left Cover Assembly

    Left cover assembly Remove the rear cover assembly. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the two screws (callout 1). Unhook the claw (callout 2), and remove the left cover assembly (callout 3). Figure 5-79 Remove the left cover ENWW...

  • Page 336: Front Cover Assembly

    Front cover assembly Remove the following assemblies. ● Rear cover assembly. See Rear cover assembly on page 313. ● Face-down tray assembly. See Face-down tray assembly on page 312. ● Left cover assembly. See Left cover assembly on page 315. ●...

  • Page 337

    Remove one screw (callout 2) and unhook the two claws (callout 3) from the right side of the MFP. Figure 5-81 Remove the front cover (2 of 5) Unhook the two claws (callout 4) on the left side of the MFP. Figure 5-82 Remove the front cover (3 of 5) ENWW...

  • Page 338

    Unhook the claw by inserting the blade of a small screwdriver into the hole (callout 5) and pushing to the right. Unhook the second claw (callout 6) and remove the cover (callout 7). Figure 5-83 Remove the front cover (4 of 5) Detail of claw (callout 5).

  • Page 339: Tray

    Tray 1 Remove the MP tray pickup assembly. See MP tray pickup assembly on page 278. Push the slip rails (callout 1) back into the MFP. Figure 5-85 Remove tray 1 (1 of 7) Open tray 1. Stretch the left and right sides of the tray guide (callout 2) outward to unhook the two bosses (callout 3).

  • Page 340

    Lift the MP tray (callout 4) upward slightly and slide the tray back into the MFP while holding the MP tray guide (callout 5). Figure 5-87 Remove tray 1 (3 of 7) Warp the link arm (callout 6) outward to unhook the left boss (callout 7). Figure 5-88 Remove tray 1 (4 of 7) 320 Chapter 5 Removal and replacement...

  • Page 341

    Lift the MP tray (callout 8) upward slightly and slide the tray back into the MFP while holding the MP tray guide (callout 9). Figure 5-89 Remove tray 1 (5 of 7) Warp the link arm (callout 10) outward to unhook the right boss (callout 11). Figure 5-90 Remove tray 1 (6 of 7) ENWW...

  • Page 342: Right Lower Cover Assembly

    Pinch and release the two tabs (callout 12) on the end of each retaining strap to release the strap ends. Figure 5-91 Remove tray 1 (7 of 7) Lift up the tray slightly and push the hinges inward to unhook them from the bosses (callout 13). Right lower cover assembly Remove tray 1.

  • Page 343

    Disconnect the connector (callout 4) and remove the cable (callout 5) from the cable guide (callout 6). Figure 5-93 Remove the right lower cover assembly (2 of 5) Open the shaft holder (callout 7) on the right side and rotate it counterclockwise to release the arm (callout 8).

  • Page 344

    Open the shaft holder (callout 9) on the left side and rotate it clockwise to remove the arm (callout 10). Figure 5-95 Remove the right lower cover assembly (4 of 5) Pull the right lower cover (callout 11) out of the MFP toward you. Figure 5-96 Remove the right lower cover assembly (5 of 5) 324 Chapter 5 Removal and replacement...

  • Page 345: Delivery Upper Cover Assembly

    Delivery upper cover assembly Remove the rear cover. See Rear cover assembly on page 313. Remove the left cover. See Left cover assembly on page 315. Remove the front cover. See Front cover assembly on page 316. Remove the face-down tray assembly. See Face-down tray assembly on page 312.

  • Page 346: Right Front Inner Lower Cover Assembly, Left Rear Inner Cover Assembly

    Right front inner lower cover assembly Remove the front cover. See Front cover assembly on page 316. Remove the two black screws (callout 1) and the right front inner lower cover (callout 2). Figure 5-98 Remove the right front lower inner cover Left rear inner cover assembly Remove the rear cover.

  • Page 347: Right Front Inner Upper Cover Assembly

    Remove the two black screws (callout 1) and the left rear inner cover (callout 2). Figure 5-99 Remove the left rear inner cover NOTE: Unclip the tab at the front below the control panel. Right front inner upper cover assembly Remove the front cover assembly.

  • Page 348

    Unhook the claw (callout 1) and release the door link (callout 2). Figure 5-100 Remove the right front inner cover assembly (1 of 3) Unhook the arm and push it back toward the MFP. Figure 5-101 Remove the right front inner cover assembly (2 of 3) 328 Chapter 5 Removal and replacement ENWW...

  • Page 349: Right Rear Inner Cover Assembly

    Remove the two screws (callout 3). Then lift up the right front inner upper cover (callout 4) and shift it gently to remove it. Figure 5-102 Remove the right front inner cover assembly (3 of 3) Right rear inner cover assembly Remove the rear cover assembly.

  • Page 350

    Push the link arm (callout 3) backwards by pressing the tabs (callout 4). Figure 5-104 Remove the right rear inner cover assembly (2 of 4) Remove the three screws (callout 5). Figure 5-105 Remove the right rear inner cover assembly (3 of 4) 330 Chapter 5 Removal and replacement ENWW...

  • Page 351

    Push the right rear inner cover assembly from the back (callout 6) and then remove the right rear inner cover (callout 7). Figure 5-106 Remove the right rear inner cover assembly (4 of 4) ENWW Covers, doors, and external panels 331...

  • Page 352: Main Assembly (internal Assemblies)

    Main assembly (internal assemblies) The figures below identify the names and locations of the MFP main assemblies. Figure 5-107 Locations of main assemblies (1 of 3) 332 Chapter 5 Removal and replacement ENWW...

  • Page 353

    Figure 5-108 Locations of main assemblies (2 of 3) ENWW Main assembly (internal assemblies) 333...

  • Page 354

    Figure 5-109 Locations of main assemblies (3 of 3) Fuser Laser/scanner assembly Fuser drive assembly Paper feed assembly Duplexing assembly Main drive assembly MP tray pickup assembly Lifter drive assembly Developing alienation drive assembly Delivery assembly 334 Chapter 5 Removal and replacement ENWW...

  • Page 355: Paper Feed Assembly

    The procedures in this section describe the removal and replacement of the following components: ● Paper feed assembly ● Pickup drive assembly ● Lifter drive assembly ● Disengaging drive assembly ● Main drive assembly ● Rail holder assembly ● Rail guide assembly ●...

  • Page 356

    Unhook the two claws (callout 3), and then remove the cable cover (callout 4). Figure 5-111 Remove the paper feed assembly (1 of 6) Detail of cable cover front claw 1 of 2 (callout 3). Figure 5-112 Remove the paper feed assembly (2 of 6) 336 Chapter 5 Removal and replacement ENWW...

  • Page 357

    Detail of cable cover rear claw (callout 3). Figure 5-113 Remove the paper feed assembly (3 of 6) Disconnect the three connectors (callout 5). Figure 5-114 Remove the paper feed assembly (4 of 6) ENWW Main assembly (internal assemblies) 337...

  • Page 358

    Remove the two screws (callout 6), and then remove the paper feed assembly (callout 7). Figure 5-115 Remove the paper feed assembly (5 of 6) The paper feed assembly contains a media sensor that is calibrated at the factory. When replacing the paper feed assembly, you must enter the new media sensor value into the MFP control panel.

  • Page 359: Pickup Drive Assembly

    Pickup drive assembly Remove the rear cover assembly. See Rear cover assembly on page 313. Disconnect the two connectors (callout 1) and remove the cable (callout 2) from the cable guides (callout 3). Figure 5-117 Remove the pickup drive assembly (1 of 2) Remove the three screws (callout 4) and unhook the cable from the cable stay (callout 5).

  • Page 360: Lifter Drive Assembly

    Lifter drive assembly Remove the paper trays. Remove the rear cover assembly. See Rear cover assembly on page 313. Remove two screws (callout 1). Remove the spring (callout 2) and disconnect the connector (callout 3). Figure 5-119 Remove the lifter drive assembly (1 of 3) Remove the paper tray rear bracket, which is located inside the paper tray.

  • Page 361

    Remove one screw (callout 4) and remove the lifter drive bracket (callout 5) and the lifter drive assembly (callout 6). Figure 5-121 Remove the lifter drive assembly (3 of 3) ENWW Main assembly (internal assemblies) 341...

  • Page 362: Disengaging Drive Assembly

    Disengaging drive assembly Remove the rear cover. See Rear cover assembly on page 313. Remove the developing disengaging motor. See Developing disengaging motor on page 395. Remove the cable (callout 1) from the cable guides (callout 2). Figure 5-122 Remove the disengaging drive assembly (1 of 3) 342 Chapter 5 Removal and replacement ENWW...

  • Page 363

    Remove four screws (callout 3). Tilt the developing alienation drive assembly (callout 4) and the cable (callout 5) forward together. Figure 5-123 Remove the disengaging drive assembly (2 of 3) Disconnect the connector (callout 6) from the developing alienation drive assembly (callout 7). Figure 5-124 Remove the disengaging drive assembly (3 of 3) ENWW...

  • Page 364: Main Drive Assembly

    Main drive assembly Remove the following assemblies: ● ● All four print cartridges ● Rear cover ● Sub power supply fan ● Sub power supply PCB ● Power supply fan ● Disengaging drive assembly ● Drum drive motors Grasp the middle of the cartridge upper guide unit (callout 2) while unhooking the two tabs (callout 1).

  • Page 365

    Grasp the middle of the cartridge lower guide unit (callout 4) while unhooking the two tabs (callout 3). Then slide the cartridge lower guide unit toward you to remove it from the printer. Figure 5-126 Remove the main drive assembly (2 of 8) CAUTION: Be careful reassembling the upper and lower cartridge guides.

  • Page 366

    Remove the four front gears (callout 9). Then remove the four back gears (callout 10). Figure 5-128 Remove the main drive assembly (4 of 8) Remove the four bushings (callout 11). Figure 5-129 Remove the main drive assembly (5 of 8) 346 Chapter 5 Removal and replacement ENWW...

  • Page 367

    Remove the two screws (callout 12) and the plate (callout 13). Remove the cable (callout 14) from the cable guides (callout 15) and disconnect one connector (callout 16). Figure 5-130 Remove the main drive assembly (6 of 8) Remove the five screws (callout 17), and then remove the main drive assembly (callout 18). Note that the uppermost screw is recessed.

  • Page 368

    Disconnect the eight connectors (callout 19) and unroute the cable (callout 20) from the cable guide (callout 21). Do not remove the black plastic covers. Then remove the main drive assembly. Figure 5-132 Remove the main drive assembly (8 of 8) WARNING! Make sure to review the following reinstallation tips before continuing with the main drive assembly reinstallation procedure.

  • Page 369

    Reinstall main drive assembly Reroute the cable through the cable guide. NOTE: When reconnecting the cable, start at the K (black) cartridge and route from there (callout 1). Figure 5-133 Reinstall the main drive assembly (1 of 16) ENWW Main assembly (internal assemblies) 349...

  • Page 370

    Reconnect the eight connectors. There are two connectors for each cartridge (callout 2). Begin with the black (K) connectors and then connect the magenta (M), cyan (C), and yellow (Y) connectors. CAUTION: Be very careful not to dislodge sensors when reconnecting cables. Figure 5-134 Reinstall the main drive assembly (2 of 16) Rotate the four white gears as shown below.

  • Page 371

    Align the four positioning dent marks (callout 3) of the developing clutch gears (callout 4) and the developing alienation gear (callout 5). Do this for all four gear pairs. Figure 5-136 Reinstall the main drive assembly (4 of 16) On the printer chassis, align all four developing clutch gears (callout 6) with the corresponding arrows stamped on the sheet metal.

  • Page 372

    Make sure that the cartridge interlock rod is in the up position (callout 7). The guide is located just above and to the right of the ETB guide. Figure 5-138 Reinstall the main drive assembly (6 of 16) Mount the main drive assembly on the printer chassis NOTE: Before reinstalling five screws, verify that the metal shafts / posts are perfectly in line and seated with screw holes on main drive assembly sheet metal.

  • Page 373

    Reinstall five screws (callout 10) being careful to keep shafts seated properly on sheet metal Figure 5-140 Reinstall the main drive assembly (8 of 16) Reinstall the disengaging drive assembly. ENWW Main assembly (internal assemblies) 353...

  • Page 374

    Verify the following before proceeding: ● Make sure the positioning marks (callout 11) of the developing alienation gears are aligned with the arrow marks (callout 12) stamped into the printer sheet metal. To do this, peer through the holes in the main drive assembly at the developing disengaging gears. There is a little dimple toward the outer edge of the gear which needs to be aligned with the arrow stamped in the sheet metal.

  • Page 375

    ● Look inside the cartridge atrium and verify that all of the cartridge couplers are fully extended through the main drive assembly into the cartridge atrium. If not all couplers are fully extended into the cartridge atrium, go back to step 3 of “reinstalling the main drive assembly”...

  • Page 376

    ● Cycle the cartridge interlock lever down and up to verify that all four cartridge couplers move in/out (engage / disengage) properly. If not all couplers move in/out of the cartridge atrium when cycling the interlock lever, the white gear shown in step 3 is not properly aligned with corresponding gear.

  • Page 377

    Install the four back gears (callout 16). Then install the four front gears (callout 17). Figure 5-145 Reinstall the main drive assembly (13 of 16) ENWW Main assembly (internal assemblies) 357...

  • Page 378

    Reinstall the cartridge guides, beginning with the lower cartridge guide. The upper cartridge guide (callout 18) has two projections (callout 19) while the lower cartridge guide (callout 20) has only one projection (callout 21). CAUTION: Be careful reassembling the upper and lower cartridge guides. They are similar to each other;...

  • Page 379: Rail Holder Assembly

    Reinstall drum drive motors. NOTE: When reinstalling drum drive motors, be certain to reinstall each drum drive motor with the corresponding color before removing. An easy way to guarantee this is to mark each motor’s color with pen or marker on the sticker. Figure 5-148 Reinstall the main drive assembly (16 of 16) Install remaining components.

  • Page 380

    Disconnect the two connectors (callout 1). Remove one screw (callout 2) and the fan duct (callout 3). Figure 5-149 Remove the rail holder assembly (1 of 3) Remove the five screws (callout 4). Figure 5-150 Remove the rail holder assembly (2 of 3) 360 Chapter 5 Removal and replacement ENWW...

  • Page 381: Rail Guide Assembly

    Remove the four screws (callout 5) and the rail holder assembly (callout 6). Figure 5-151 Remove the rail holder assembly (3 of 3) Rail guide assembly Remove the rail holder assembly. See Rail holder assembly on page 359. Remove the two screws (callout 1), and then remove the front guide cover (callout 2). Figure 5-152 Remove the rail guide assembly (1 of 7) Remove the left rear inner cover assembly.

  • Page 382

    Remove the two screws (callout 3), and then remove the rear guide cover (callout 4). Figure 5-153 Remove the rail guide assembly (2 of 7) Remove the four screws (callout 5), and then remove the center guide cover (callout 6). Figure 5-154 Remove the rail guide assembly (3 of 7) 362 Chapter 5 Removal and replacement...

  • Page 383

    Unhook the two claws (callout 7), and then remove the connector cover (callout 8). Figure 5-155 Remove the rail guide assembly (4 of 7) Figure 5-156 Remove the rail guide assembly, connector cover claw detail (5 of 7) ENWW Main assembly (internal assemblies) 363...

  • Page 384: Formatter Case Assembly

    Disconnect the connector (callout 9). Figure 5-157 Remove the rail guide assembly (6 of 7) Remove the four screws (callout 10), and then remove the rail guide assembly (callout 11). Figure 5-158 Remove the rail guide assembly (7 of 7) Formatter case assembly Remove the rear cover.

  • Page 385

    Remove the cable (callout 1) from the cable guide (callout 2). Figure 5-159 Remove the formatter case (1 of 10) Remove the delivery fan. See Delivery fan on page 402. Disconnect the purple connector (callout 3) from the fan, and remove the cable from the cable guide (callout 4).

  • Page 386

    Remove the test print pin (callout 5) from the fan holder (callout 6) by pushing it to the left. Figure 5-161 Remove the formatter case (3 of 10) Remove the two screws (callout 7), and then remove the fan holder (callout 8) and the cartridge fan (callout 9) together.

  • Page 387

    Disconnect the upper flat cable (callout 10) and remove one screw (callout 11). Figure 5-163 Remove the formatter case (5 of 10) Unhook the five tabs (callout 12) in the order shown to release the shield cover. Two tabs are located on the underside of the shield cover.

  • Page 388

    Remove the cable (callout 13) from the cable guide (callout 14). Figure 5-165 Remove the formatter case (7 of 10) Remove the formatter. See Formatter board on page 297. Remove the connector (callout 15) and then unhook the cables (callout 16) from the cable guides (callout 17).

  • Page 389

    Remove the cables (callout 18) from the cable guide (callout 19). Remove the two screws (callout 20). Figure 5-167 Remove the formatter case (9 of 10) Remove the four screws (callout 21), and then remove the formatter case assembly (callout 22). Figure 5-168 Remove the formatter case (10 of 10) ENWW...

  • Page 390: Laser/scanner Components

    Laser/scanner components NOTE: Before removing the laser/scanner assembly, remove the screws on the four corners (callout 1) that join the MFP and the 2 X 500 sheet paper deck. Otherwise, the frame might become twisted, which could distort the flatness of the laser mounting. Replace the screws after the laser/scanner assembly has been replaced.

  • Page 391

    Remove all cables from the cable guides. Remove two screws (callout 2) and the formatter plate (callout 3). Figure 5-170 Remove laser/scanner components (1 of 12) Remove the springs (callout 4). Figure 5-171 Remove the laser/scanner components (2 of 12) ENWW Main assembly (internal assemblies) 371...

  • Page 392

    Remove the four screws (callout 5), and then remove the rear plate assembly (callout 6). Figure 5-172 Remove the laser/scanner components (3 of 12) Remove the cable (callout 7) from the cable guide (callout 8). Figure 5-173 Remove the laser/scanner components (4 of 12) 372 Chapter 5 Removal and replacement ENWW...

  • Page 393

    Remove one screw (callout 9). Figure 5-174 Remove the laser/scanner components (5 of 12) Push the knob (callout 10) in and to the right. Then remove the scanner holder assembly (callout 11) by pushing it from the side. Figure 5-175 Remove the laser/scanner components (6 of 12) ENWW Main assembly (internal assemblies) 373...

  • Page 394

    Pull out the laser/scanner retaining arm (callout 12). Figure 5-176 Remove the laser/scanner components (7 of 12) Remove the recessed screw (callout 13). Figure 5-177 Remove the laser/scanner components (8 of 12) 374 Chapter 5 Removal and replacement ENWW...

  • Page 395

    Push the knob (callout 14) in and to the left and remove the rear scanner holder assembly (callout 15) by sliding if toward the front (callouts 16 and 17). Figure 5-178 Remove the laser/scanner components (9 of 12) Figure 5-179 Remove the laser/scanner components (10 of 12) ENWW Main assembly (internal assemblies) 375...

  • Page 396

    Unhook the laser/scanner assemblies from the white retaining strip (callout 18). Figure 5-180 Remove the laser/scanner components (11 of 12) Remove the laser/scanner assemblies (callout 19) by lifting and sliding them to the left and rotating them outward. Figure 5-181 Remove laser/scanner components (12 of 12) 376 Chapter 5 Removal and replacement ENWW...

  • Page 397: Duplexing Assembly

    Duplexing assembly Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the left cover. See Left cover assembly on page 315. Remove the front cover. See Front cover assembly on page 316.

  • Page 398

    Slide the right and left duplexing locks (callout 2) backward. Figure 5-183 Remove the duplexing assembly (2 of 5) Detail of left duplexing lock. Figure 5-184 Remove the duplexing assembly (3 of 5) 378 Chapter 5 Removal and replacement ENWW...

  • Page 399: Delivery Assembly

    Detail of right duplexing lock. Figure 5-185 Remove the duplexing assembly (4 of 5) From the left side of the MFP, lift up the duplexer. Disconnect the connector (callout 3) while supporting the duplexing assembly (callout 4). Remove the duplexing assembly (callout 4). Figure 5-186 Remove the duplexing assembly (5 of 5) Delivery assembly...

  • Page 400

    Remove the duplexing assembly. See Duplexing assembly on page 377. Remove the sub power supply. See Sub power supply PCB on page 427. Remove the rear exhaust fan. See Rear exhaust fan on page 405. Remove the three screws (callout 1) and remove the metal side access cover plate. Figure 5-187 Remove the delivery assembly (1 of 15) Remove the three connectors (callout 2).

  • Page 401

    Remove the two screws (callout 3) at the front of the MFP. Figure 5-189 Remove the delivery assembly (3 of 15) Remove the fuser door assembly (callout 4) and the front upper inner cover (callout 5). Figure 5-190 Remove the delivery assembly (4 of 15) ENWW Main assembly (internal assemblies) 381...

  • Page 402

    Remove the two screws (callout 6), and then remove the front upper inner cover (callout 7). Figure 5-191 Remove the delivery assembly (5 of 15) Unhook the four claws (callout 8) and then remove the fan duct (callout 9). Figure 5-192 Remove the delivery assembly (6 of 15) 382 Chapter 5 Removal and replacement ENWW...

  • Page 403

    Remove the cable (callout 10) from the cable guides (callout 11) and disconnect the connector (callout 12). Then remove the two screws (callout 13) and the delivery fan assembly (callout 14). Figure 5-193 Remove the delivery assembly (7 of 15) Remove the three screws (callout 15), remove the cable from the cable guides (callout 16), and then remove the fan duct (callout 17).

  • Page 404

    Disconnect the connector (callout 18). Remove the cable (callout 19) from the cable guide (callout 20). Figure 5-195 Remove the delivery assembly (9 of 15) Remove the cable (callout 21) from the cable guide (callout 22). Figure 5-196 Remove the delivery assembly (10 of 15) 384 Chapter 5 Removal and replacement ENWW...

  • Page 405

    Remove the cable (callout 23) from the cable guides (callout 24). Figure 5-197 Remove the delivery assembly (11 of 15) Remove the cable (callout 25) from the cable guide (callout 26). Disconnect the connectors (callouts 27 and 28). Note that callout 27 includes two connectors. Figure 5-198 Remove the delivery assembly (12 of 15) ENWW...

  • Page 406

    Remove one screw (callout 29). Figure 5-199 Remove the delivery assembly (13 of 15) Remove the two screws (callout 30). Figure 5-200 Remove the delivery assembly (14 of 15) 386 Chapter 5 Removal and replacement ENWW...

  • Page 407: Fuser Drive Assembly

    Remove the two screws (callout 31), and then remove the delivery assembly (callout 32). Figure 5-201 Remove the delivery assembly (15 of 15) Fuser drive assembly Remove the delivery assembly. See Delivery assembly on page 379. Remove the E-ring (callout 1). Figure 5-202 Remove the fuser drive assembly Slide the bushing (callout 2) in the direction of the arrow.

  • Page 408: Drum Motors, Motors And Fans

    Motors and fans The procedures in this section describe the removal and replacement of the following components: ● Drum motors ● Fuser motor ● Fuser pressure release motor ● Developing disengaging motor ● Pickup motor assembly ● Power supply fan ●...

  • Page 409: Fuser Motor

    Fuser motor Remove the rear cover assembly. See Rear cover assembly on page 313. Remove the rear exhaust fan. See Rear exhaust fan on page 405. Remove the three screws (callout 1) and the plate (callout 2). Figure 5-204 Remove the fuser motor (1 of 2) Disconnect the connector (callout 3).

  • Page 410: Fuser Pressure Release Motor

    Fuser pressure release motor Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the left cover. See Left cover assembly on page 315. Remove the front cover. See Front cover assembly on page 316.

  • Page 411

    Remove two screws (callout 3) and then remove the front guide cover (callout 4). Figure 5-207 Remove the fuser pressure release motor (2 of 8) Remove two screws (callout 5) at the front of the MFP and remove the cover. Figure 5-208 Remove the fuser pressure release motor (3 of 8) ENWW...

  • Page 412

    Unhook the two claws (callout 6), and then remove the connector cover (callout 7). Figure 5-209 Remove the fuser pressure release motor (4 of 8) Figure 5-210 Remove the fuser pressure release motor, connector cover claw detail (5 of 8) 392 Chapter 5 Removal and replacement ENWW...

  • Page 413

    Disconnect the connector (callout 9). Figure 5-211 Remove the fuser pressure release motor (6 of 8) Remove two screws (callout 10) and lift off the plastic fuser drive assembly cover (callout 11). Figure 5-212 Remove the fuser pressure release motor (7 of 8) ENWW Motors and fans 393...

  • Page 414

    Disconnect one connector (callout 12), remove the two screws (callout 13), and then remove the fuser pressure release motor (callout 14). Figure 5-213 Remove the fuser pressure release motor (8 of 8) NOTE: After reinstalling the fuser pressure release motor, rotate the pressure release gears to ensure that they engage with the worm gear on the motor.

  • Page 415: Developing Disengaging Motor

    Developing disengaging motor Remove the rear cover. See Rear cover assembly on page 313. Remove the sub power supply PCB. See Sub power supply PCB on page 427. Disconnect the connector (callout 1). Remove the two screws (callout 2), and then remove the developing disengaging motor (callout Figure 5-214 Remove the developing disengaging motor ENWW...

  • Page 416: Pickup Motor Assembly

    Pickup motor assembly Remove the paper feed assembly. See Paper feed assembly on page 335. Using a small flat-blade screwdriver, pinch the tab (callout 1) and slide the gear (callout 2), cylinder (callout 3), and bushing (callout 4) off the shaft. Figure 5-215 Remove the pickup motor assembly (1 of 3) Gear removed.

  • Page 417: Power Supply Fan

    Disconnect the connector (callout 5), remove the two screws, and then remove the pickup motor by angling it around the main drive assembly. Figure 5-217 Remove the pickup motor assembly (3 of 3) Power supply fan Remove the rear cover. See Rear cover assembly on page 313.

  • Page 418

    Disconnect the connector. (Currently this disconnects at the DC controller. Changes will be implemented prior to product introduction.) Figure 5-219 Remove the power supply fan (2 of 2) NOTE: When installing the power supply fan, install the fan so that the label (callout 3) faces into the MFP.

  • Page 419: Cartridge Fan

    Cartridge fan Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the left cover. See Left cover assembly on page 315. Remove the front cover and the control panel. See Front cover assembly on page 316 Control panel on page 267.

  • Page 420: Sub Power Supply Fan

    Figure 5-222 Installation guidelines Sub power supply fan Remove the rear cover assembly. See Rear cover assembly on page 313. Unhook the cable from the cable guide (callout 1) and remove the three screws (callout 2). Figure 5-223 Remove the sub power supply fan (1 of 3) 400 Chapter 5 Removal and replacement ENWW...

  • Page 421

    Remove the fan holder (callout 3) and the sub power supply fan together. Disconnect the connector (callout 4). Figure 5-224 Remove the sub power supply fan (2 of 3) Unhook the three claws (callout 5), and then remove the sub power supply fan (callout 6) from the fan holder (callout 7).

  • Page 422: Delivery Fan

    Figure 5-226 Installation guidelines Delivery fan Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the left cover. See Left cover assembly on page 315. Remove the front cover and the control panel.

  • Page 423: Control Fan 1

    Disconnect the connector (callout 3) and remove the two screws (callout 4). Then remove the delivery fan assembly (callout 5). Figure 5-228 Remove the delivery fan (2 of 2) Control fan 1 Remove the rear cover assembly. See Rear cover assembly on page 313.

  • Page 424: Control Fan 2

    NOTE: When installing the control fan, install the fan so that the label (callout 4) faces outward. Install the cable (callout 5) as shown in the figure. Figure 5-230 Installation guidelines Control fan 2 Remove the rear cover assembly. See Rear cover assembly on page 313.

  • Page 425: Rear Exhaust Fan

    NOTE: When installing the control fan, install the fan so that the label (callout 4) faces outward. Install the cable (callout 5) as shown in the figure. Figure 5-232 Installation guidelines Rear exhaust fan Remove the rear cover assembly. See Rear cover assembly on page 313.

  • Page 426

    Unhook the three claws (callout 5) and remove the rear exhaust fan (callout 6) from the fan holder (callout 7). Figure 5-234 Remove the rear exhaust fan (2 of 2) NOTE: When installing the sub power supply fan, install the fan so that the label (callout 8) faces outward.

  • Page 427

    Unhook the three claws (callout 1) and remove the cable cover (callout 2). Figure 5-236 Remove the ETB fan (1 of 4) Disconnect the connector (callout 3) for the red, white, and black cable. Remove the three screws (callout 4) and the cable cover (callout 5). Figure 5-237 Remove the ETB fan (2 of 4) ENWW...

  • Page 428

    Remove the four screws (callout 6) and the duplexing feed guide assembly (callout 7). Figure 5-238 Remove the ETB fan (3 of 4) Unhook the two claws (callout 8) and remove the ETB fan (callout 9). Figure 5-239 Remove the ETB fan (4 of 4) NOTE: When installing the ETB fan, install the fan so that the label (callout 10) faces into the duplexing feed guide assembly.

  • Page 429

    Figure 5-240 Installation guidelines TIP: When reinstalling the ETB fan, install the cable in the cable guides first to avoid pinching the cables during later steps. ENWW Motors and fans 409...

  • Page 430: Dc Controller Pcb, Pcbs

    PCBs The procedures in this section describe the removal and replacement of the following components: ● DC controller PCB ● Toner level PCB ● High-voltage power supply PCB ● Low-voltage power supply PCB ● Memory controller PCB ● Sub power supply PCB ●...

  • Page 431

    Disconnect all connectors and remove the flat connector from the DC controller (callout 1). Remove four screws (callout 2), and then remove the DC controller PCB (callout 3). Figure 5-241 Remove the DC controller (1 of 2) DC controller removed. Figure 5-242 Remove the DC controller (2 of 2) The locations of the DC controller connections are shown on the following figure.

  • Page 432

    Figure 5-243 DC controller component connections Connector Pins Component J1002 Laser scanner Y J1003 Laser scanner C J1004 Scanner motor M J1005 Scanner motor K J1024 Fusing motor (M5) Fuser pressure release motor (M6) J1026 Fuser paper sensor (SR1) Delivery tray full sensor (SR2) Fuser pressure release sensor (SR3) J1037 Not connected...

  • Page 433

    Connector Pins Component J1014 Toner level PCB MP tray paper sensor J1022 Drum home position sensor J1016 Cassette paper sensor (SR9) Paper stack surface sensor (SR10) J1012 Color misregistration sensor Transmission LED Top of page sensor (SR12) J1013 Media sensor J1019 Developing disengaging sensor (SR11) J1015...

  • Page 434

    Connector Pins Component Control fans 1 and 2 ETB fan J1007 Door switch J1028 IPTU Jet Link (stapler/stacker and 3-bin mailbox) Sub power supply PCB ADF/scanner 414 Chapter 5 Removal and replacement ENWW...

  • Page 435: Toner Level Pcb, High-voltage Power Supply Pcb

    Toner level PCB Remove the high-voltage power supply PCB. See High-voltage power supply PCB on page 415. Disconnect the connector (callout 1). Remove the three screws (callout 2), and then remove the toner level PCB (callout 3). Figure 5-244 Remove the toner level PCB High-voltage power supply PCB Remove the following assemblies: ●...

  • Page 436

    Remove the control panel cover by prying up both sides of the cover. Figure 5-245 Remove the high-voltage power supply PCB (1 of 9) Remove the inner cover by prying up at the tabs (callout 1) with a flat-blade screwdriver. Remove the three screws (callout 2) and then remove the panel holder (callout 3).

  • Page 437

    Remove the cable (callout 4) from the cable guides (callout 5). Figure 5-247 Remove the high-voltage power supply PCB (3 of 9) Unhook the claw (callout 6) and slide the cable guide down to remove it (callout 7). Figure 5-248 Remove the high-voltage power supply PCB (4 of 9) ENWW PCBs 417...

  • Page 438

    Unhook the claw (callout 8) and slide the cable guide to the right to remove it (callout 9). Figure 5-249 Remove the high-voltage power supply PCB (5 of 9) Remove the two screws (callout 10), and then remove the front guide cover (callout 11). Figure 5-250 Remove the high-voltage power supply PCB (6 of 9) 418 Chapter 5 Removal and replacement...

  • Page 439

    Remove one M4 screw (callout 12) and the seven M3 screws (callout 13). Then remove the plate (callout 14). Figure 5-251 Remove the high-voltage power supply PCB (7 of 9) TIP: When reinstalling the high-voltage power supply PCB, be sure to replace the M4 screw.

  • Page 440

    Disconnect the connector (callout 15). Remove the three M3 screws (callout 16) and the single M4 screw (callout 17). Then unhook the four claws (callout 18). Pinch the four clips to release the high-voltage power supply. Figure 5-252 Remove the high-voltage power supply PCB (8 of 9) Shift the high-voltage power supply PCB (callout 19) to the right, and then shift it to the left (callout 20) to remove it.

  • Page 441: Low-voltage Power Supply Pcb

    Low-voltage power supply PCB Remove the rear cover. See Rear cover assembly on page 313. Remove the left cover. See Left cover assembly on page 315. Remove the power supply fan. See Power supply fan on page 397. Figure 5-254 Remove the low-voltage power supply PCB (1 of 9) Lift the rod arm (callout 1) to detach it from the power switch, and unhook the cable from the cable guide.

  • Page 442

    Disconnect the connector (callout 3) at the left of the MFP. Figure 5-256 Remove the low-voltage power supply PCB (3 of 9) Remove the two screws (callout 4). Then remove the power switch assembly (callout 5) and the rod arm (callout 6) together. Figure 5-257 Remove the low-voltage power supply PCB (4 of 9) 422 Chapter 5 Removal and replacement...

  • Page 443

    Unhook the claws (callout 7), and remove the rod guides (callout 8). Figure 5-258 Remove the low-voltage power supply PCB (5 of 9) Remove the link (callout 9) by turning it clockwise and lifting it up and out. Figure 5-259 Remove the low-voltage power supply PCB (6 of 9) ENWW PCBs 423...

  • Page 444

    Remove the rear link arm (callout 10), unhook the cable (callout 11), and remove the rod guide (callout 12). Figure 5-260 Remove the low-voltage power supply PCB (7 of 9) Disconnect the four connectors (callout 13). Figure 5-261 Remove the low-voltage power supply PCB (8 of 9) 424 Chapter 5 Removal and replacement ENWW...

  • Page 445

    Remove the two screws (callout 14), and then remove the low-voltage power supply PCB (callout 15) through the left side of the MFP. Figure 5-262 Remove the low-voltage power supply PCB (9 of 9) ENWW PCBs 425...

  • Page 446: Memory Controller Pcb

    Memory controller PCB Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 312. Remove the left cover. See Left cover assembly on page 315. Remove the front cover. See Front cover assembly on page 316.

  • Page 447: Sub Power Supply Pcb

    Sub power supply PCB Remove the rear cover assembly. See Rear cover assembly on page 313. Remove the sub power supply fan. See Sub power supply fan on page 400. Disconnect the four connectors (callout 1). Figure 5-264 Remove the sub power supply PCB (1 of 4) Disconnect the connector (callout 2).

  • Page 448

    Remove the lower screw (callout 3). Note that this screw is recessed. Figure 5-266 Remove the sub power supply PCB (3 of 4) Remove the upper two screws (callout 4), and then remove the sub power supply PCB assembly (callout 5). Figure 5-267 Remove the sub power supply PCB (4 of 4) NOTE:...

  • Page 449: Fan Drive Pcb

    Fan drive PCB Remove the rear cover assembly. See Rear cover assembly on page 313. Disconnect the four connectors (callout 1). Remove the three screws (callout 2), and then remove the fan drive PCB (callout 3). Figure 5-268 Remove the fan drive PCB ENWW PCBs 429...

  • Page 450: High-voltage Contacts, Switches, Contacts, And Sensors

    Switches, contacts, and sensors The procedures in this section describe the removal and replacement of the following components: ● High-voltage contacts ● E-label memory contacts and cable ● Power switch assembly ● Door-open switch assembly ● Environment sensor High-voltage contacts Remove the rear cover.

  • Page 451: E-label Memory Contacts And Cable

    E-label memory contacts and cable Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 287. Remove the left cover. See Left cover assembly on page 315. Remove the front cover. See Front cover assembly on page 316.

  • Page 452: Power Switch Assembly

    Lift the metal stay up and out (callout 3). Figure 5-271 Remove the E-label contacts (2 of 2) Remove the contact and cable from all four metal stays and cable guides. Power switch assembly Remove the rear cover. See Rear cover assembly on page 313.

  • Page 453

    Lift the power switch assembly up and rotate it outward. Figure 5-273 Remove the power switch (2 of 3) Remove the rod from the switch assembly. Figure 5-274 Remove the power switch (3 of 3) NOTE: During reassembly, be sure to route the metal rod through the guides and hook the two tabs on the assembly back onto the MFP.

  • Page 454: Door-open Switch Assembly

    Door-open switch assembly Remove the rear cover. See Rear cover assembly on page 313. Remove three screws (callout 1) and remove the corner plate. Figure 5-275 Remove the door-open switch assembly (1 of 3) Remove two screws (callout 2) to release the door-open switch. Figure 5-276 Remove the door-open switch assembly (2 of 3) 434 Chapter 5 Removal and replacement...

  • Page 455: Environment Sensor

    Disconnect four connectors callout 3). Figure 5-277 Remove the door-open switch assembly (3 of 3) Environment sensor Remove the rear cover. See Rear cover assembly on page 313. Remove the face-down tray assembly. See Face-down tray assembly on page 287. Remove the left cover.

  • Page 456

    Disconnect one connector (callout 1). Figure 5-278 Remove the environment sensor Push down on (callout 2) with your finger while inserting a flat-blade screwdriver to release the sensor (callout 3). Lift out the environment sensor using the screwdriver. 436 Chapter 5 Removal and replacement ENWW...

  • Page 457: Adf Assembly, Adf And Scanner Components

    ADF and scanner components The procedures in this section describe the removal and replacement of the following components: ● ADF assembly ● Top covers ● Scanner assembly ● Scanner left cover ● Scanner right cover ● Scanner controller PCB ADF assembly CAUTION: When you remove the ADF assembly, do not use the ADF cable to lift or move the ADF assembly.

  • Page 458

    Remove one grounding screw (callout 3), disconnect two cables (callout 4), and remove the cable (callout 5) from the cable stays. Figure 5-280 Remove the ADF assembly (2 of 3) NOTE: When reinstalling the ADF, make sure that the ADF cable is correctly routed through the cable holder into the scanner bed.

  • Page 459: Top Covers

    Top covers Remove the ADF assembly. See ADF assembly on page 437. Remove the control panel. See Control panel on page 267. Use a flat-blade screwdriver to pry off the outer frame. Figure 5-282 Remove the top covers (1 of 2) Use a flat-blade screwdriver to pry off the inner frame.

  • Page 460: Scanner Assembly

    Scanner assembly Remove the ADF assembly. See ADF assembly on page 437. Remove the control panel. See Control panel on page 267. Remove one screw (callout 1), and remove the right scanner cover. Figure 5-284 Remove the scanner assembly (1 of 5) Remove two screws (callout 2) and remove the left scanner cover.

  • Page 461

    Disconnect one flat cable (callout 3) and one connector (callout 4). Figure 5-286 Remove the scanner assembly (3 of 5) Remove three screws from the left side of the scanner (callout 5). Figure 5-287 Remove the scanner assembly (4 of 5) ENWW ADF and scanner components 441...

  • Page 462: Scanner Left Cover

    Slide the scanner to the right and lift it up and off the MFP. Figure 5-288 Remove the scanner assembly (5 of 5) Scanner left cover Remove the ADF assembly. See ADF assembly on page 437. Remove the control panel and cover. See Control panel on page 267.

  • Page 463: Scanner Right Cover

    Remove two screws. Figure 5-290 Remove the scanner left cover (2 of 2) Lift off the ADF left top cover. Scanner right cover Remove the ADF assembly. See ADF assembly on page 437. Remove the control panel and cover. See Control panel on page 267.

  • Page 464

    Remove one screw (callout 1). Figure 5-292 Remove the scanner right cover (2 of 2) Pull toward the front of the MFP and lift off the scanner right cover. 444 Chapter 5 Removal and replacement ENWW...

  • Page 465: Scanner Controller Pcb

    Scanner controller PCB Remove two screws (callout 1), and then remove the scanner controller PCB cover. Figure 5-293 Remove the scanner controller PCB (1 of 2) Disconnect seven scanner controller PCB connectors (callout 2) and two flat cables (callout 3), and then remove five screws.

  • Page 466: Adf Components

    ADF components The procedures in this section describe the removal and replacement of the following components: ● ADF output bin extension ● ADF white mylar backing ● ADF front cover ● ADF rear cover ● ADF left side cover ● ADF jam access cover and latch ●...

  • Page 467: Adf Output Bin Extension

    ADF output bin extension Open the ADF and remove two screws. Figure 5-295 Remove the ADF output bin extension (1 of 2) NOTE: Make sure that you store the envelope that contains the clear mylar sheets beneath the ADF white vinyl scan background after you install the replacement ADF output bin extension.

  • Page 468: Adf White Mylar Backing

    ADF white mylar backing Open the ADF, release two locking tabs and then open the mylar holder assembly. Figure 5-297 Remove the ADF white mylar backing (1 of 3) Unsnap the mylar holder assembly hinges from the hinge pins. Figure 5-298 Remove the ADF white mylar backing (2 of 3) 448 Chapter 5 Removal and replacement ENWW...

  • Page 469

    Release the ADF white mylar backing locking tab, and lift the assembly up and out of the ADF. Figure 5-299 Remove the ADF white mylar backing (3 of 3) NOTE: The springs behind the ADF white mylar backing assembly are not captive. Do not lose the springs when you remove the ADF white mylar backing assembly.

  • Page 470

    Reinstallation tip: Place the springs over the pins when replacing the backing assembly. Figure 5-301 Reinstall the ADF white mylar backing springs (2 of 2) 450 Chapter 5 Removal and replacement ENWW...

  • Page 471: Adf Front Cover

    ADF front cover Remove the ADF input tray. See ADF input tray on page 279. Open the ADF top cover and remove one screw. Figure 5-302 Remove the ADF front cover (1 of 2) Open the scanner cover. Release the two ADF front cover locking buttons, and then remove the ADF front cover. Figure 5-303 Remove the ADF front cover (2 of 2) ENWW...

  • Page 472: Adf Rear Cover

    ADF rear cover Open the ADF top cover. Figure 5-304 Remove the ADF rear cover (1 of 3) Remove one screw. Figure 5-305 Remove the ADF rear cover (2 of 3) 452 Chapter 5 Removal and replacement ENWW...

  • Page 473

    Holding it by the front, lift the ADF rear cover off the ADF. Figure 5-306 Remove the ADF rear cover (3 of 3) TIP: Reinstall the ADF rear cover by inserting the tabs of the back of the cover into the slots and pressing downward.

  • Page 474: Adf Left Side Cover

    ADF left side cover Remove the following assemblies: ● ADF front cover. See ADF front cover on page 451. ● ADF rear cover. See ADF rear cover on page 452. Release two springs. Figure 5-307 Remove the ADF left cover (1 of 2) NOTE: The left cover tension springs are not captive.

  • Page 475: Adf Jam Access Cover And Latch

    ADF jam access cover and latch Remove the following assemblies: ● ADF front cover. See ADF front cover on page 451. ● ADF rear cover. See ADF rear cover on page 452. ● ADF left side cover. See ADF left side cover on page 454.

  • Page 476

    Lift the rod out of the ADF assembly. Figure 5-311 Remove the ADF jam access cover and latch (3 of 3) Reinstallation tip: Make sure that you wind the spring around the latch rod and hold it in place until the rod snaps into place. 456 Chapter 5 Removal and replacement ENWW...

  • Page 477: Adf Leading-edge And Paper-present Sensors

    ADF leading-edge and paper-present sensors Remove the ADF front cover. See ADF front cover on page 451. Remove the ADF rear cover. See ADF rear cover on page 452. Remove the ADF left side cover. See ADF left side cover on page 454.

  • Page 478: Adf Hinges

    ADF hinges Remove the following assemblies: ● ADF front cover. See ADF front cover on page 451. ● ADF rear cover. See ADF rear cover on page 452. Lift the ADF assembly and unhook the hinges from the scanner assembly. Figure 5-314 Remove the ADF hinges (1 of 3) Remove two screws from the left-side hinge, and then remove the left-side hinge.

  • Page 479

    Remove four screws from the right-side hinge, and then remove the right-side hinge. Figure 5-316 Remove the ADF hinges (3 of 3) ENWW ADF components 459...

  • Page 480: X 500-sheet Paper Input Assembly Components

    2 X 500-sheet paper input assembly components The procedures in this section describe the removal and replacement of the following components: ● Rear cover ● Right front cover ● Left front cover ● Right cover ● Left cover ● Right lower cover assembly ●...

  • Page 481: Rear Cover

    Rear cover Remove all paper trays. Remove two screws (callout 1) and then remove the rear cover (callout 2). Figure 5-317 Remove the 2 X 500-sheet paper input assembly rear cover ENWW 2 X 500-sheet paper input assembly components 461...

  • Page 482: Right Front Cover

    Right front cover Remove all paper trays. Unhook the two claws (callout 1) and remove one screw (callout 2). Figure 5-318 Remove the 500-sheet feeder right front cover (1 of 2) Unhook the three claws (callout 3), and then remove the right front cover. Figure 5-319 Remove the 500-sheet feeder right front cover (2 of 2) 462 Chapter 5 Removal and replacement...

  • Page 483: Left Front Cover

    Left front cover Remove all paper trays. Unhook the two claws (callout 1). Figure 5-320 Remove the 500-sheet feeder left front cover (1 of 2) Unhook the three claws (callout 2), and remove the left front cover. Figure 5-321 Remove the 500-sheet feeder left front cover (2 of 2) ENWW 2 X 500-sheet paper input assembly components 463...

  • Page 484: Right Cover

    Right cover Remove all paper trays. Remove the feeder rear cover. See Rear cover on page 461. Remove the right front cover. See Right front cover on page 462. Remove one screw (callout 1). Figure 5-322 Remove the right cover (1 of 3) Remove one screw (callout 2).

  • Page 485

    Remove the three screws (callout 3) and the right cover (callout 4). Figure 5-324 Remove the right cover (3 of 3) ENWW 2 X 500-sheet paper input assembly components 465...

  • Page 486: Left Cover

    Left cover Remove all paper trays. Remove the rear cover. See Rear cover on page 461. Remove the left front cover. See Left front cover on page 463. Remove one screw (callout 1). Figure 5-325 Remove the left cover (1 of 3) Remove one screw (callout 2).

  • Page 487

    Remove three screws (callout 3), and then remove the left cover (callout 4). Figure 5-327 Remove the left cover (3 of 3) ENWW 2 X 500-sheet paper input assembly components 467...