Sensors (HCI) ................................................................................................. 552
Wiring diagrams (HCI) ..................................................................................... 553
Repetitive defect ruler ...................................................................................................... 554
Interlocks and linkages .................................................................................................... 555
Print cartridge and MFP contacts .................................................................................... 563
Known issues ................................................................................................................................... 565
Control-panel ESD disruption .......................................................................................... 565
Clearing a jam from the right (print cartridge) side ......................................................... 565
Loading Tray 2/3/4/5 with letter or A4 media ................................................................... 566
The stapler/stacker only staples letter and A4 media ...................................................... 566
Formatter cage does not properly seat ............................................................................ 566
RFU with a SCB firmware upgrade .................................................................................. 566
RFU with a DC controller firmware update ...................................................................... 566
EIO device does not properly seat ................................................................................... 566
Print cartridge cannot be removed ................................................................................... 566
False left door open error message ................................................................................. 567
Dark or flickering control-panel display ............................................................................ 567
Fuser edge overheat slowdown ....................................................................................... 567
7 Parts and diagrams
Parts ................................................................................................................................................. 571
How to use the parts lists and diagrams .......................................................................................... 572
Types of screws ............................................................................................................................... 572
Related documentation and software ............................................................................................... 573
Accessories, supplies, and whole unit components ......................................................................... 573
Automatic document feeder (whole unit) .......................................................................................... 582
Front end cover (ADF) ...................................................................................................................... 584
Hinges (ADF) .................................................................................................................................... 586
Base assembly (ADF) ...................................................................................................................... 588
Backbone assembly (ADF) ............................................................................................................... 590
Jam Cover (ADF) ............................................................................................................................. 594
Pickup roller assembly (ADF) ........................................................................................................... 596
Separation pad assembly (ADF) ...................................................................................................... 598
Separation floor assembly (ADF) ..................................................................................................... 600
Scanner assembly base ................................................................................................................... 602
Carriage assembly (scanner; optical assembly) ............................................................................... 604
Scanner top assembly ...................................................................................................................... 606
Scanner controller board (SCB) assembly ....................................................................................... 608
Scanner lid sensor assembly ........................................................................................................... 610
Scanner transmission drive assembly .............................................................................................. 612
Stapler/stacker assembly main body ................................................................................................ 614
Paper feed assembly (stapler/stacker) ............................................................................................. 618
Alignment and jogger assembly (stapler/stacker) ............................................................................ 620
Stapler assembly (stapler/stacker) ................................................................................................... 624
Stapler/stacker PCA ......................................................................................................................... 626
Print engine external covers and panels .......................................................................................... 628
Cartridge door assembly (print engine) ............................................................................................ 632
Internal components (print engine 1 of 3) ......................................................................................... 636
Internal components (print engine; 2 of 3) ........................................................................................ 640
Internal components (print engine; 3 of 3) ........................................................................................ 644
xii ENWW
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