Document feeder paper pick and separation .................................................... 33
Document feeder paper stopper & fins ............................................................. 34
Document feeder simplex selector .................................................................... 35
Document feeder white backing ........................................................................ 35
Document feeder duplex selector ..................................................................... 36
Document feeder hinge ..................................................................................... 37
Pickup, feed, and delivery system ...................................................................................................... 39
Photo sensors and switches .............................................................................................. 40
Motors and solenoids ......................................................................................................... 42
Pickup and feed system ..................................................................................................... 43
Media-size detection ......................................................................................... 43
Media-level detection ........................................................................................ 43
Multi-feed prevention ......................................................................................... 43
Transparency media detection .......................................................................... 44
Fuser-wrapping jam detection ........................................................................... 44
Tray 1 ................................................................................................................................. 44
Tray 1 driver PCA .............................................................................................. 44
Tray 1 power supply .......................................................................................... 44
Tray 1 sequence of operation ........................................................................... 45
Tray 1 pickup and feed ...................................................................................... 45
Tray 1 jam detection .......................................................................................... 45
Tray 2 and Tray 3 .............................................................................................................. 46
Tray 2 cassette pickup ...................................................................................... 46
Tray 2 cassette multiple-feed prevention .......................................................... 48
Tray 2 cassette media-size detection and Tray 2 cassette-presence
detection ............................................................................................................ 49
Tray 2 cassette lift-up operation ........................................................................ 50
Tray media-presence detection ......................................................................... 52
Jam detection .................................................................................................................... 53
3,500-sheet high-capacity input (HCI) feeder ..................................................................................... 57
HCI electrical components ................................................................................................. 59
HCI motor control ............................................................................................................... 61
HCI motor failure detection ............................................................................... 62
HCI pickup-and-feed operation .......................................................................................... 63
HCI lift-up operation .......................................................................................... 64
HCI cassette media-size detection and cassette-presence detection ............... 65
Additional HCI pickup and feed functions .......................................................................... 65
HCI jam detection .............................................................................................................. 66
Stapler/stacker and stapler/stacker with hole punch .......................................................................... 68
Stapler/stacker motors ....................................................................................................... 72
Motor failure detection ....................................................................................... 72
vi ENWW
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