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 Tray 1 ................................................................................................................................. 44 Fuser-wrapping jam detection ........................................................................... 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 cassette media-size detection and cassette-presence detection ............... 65 HCI lift-up operation .......................................................................................... 64 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