Service manual

Contents
Contents
7.1 Construction ....................................................................................................................................................... 7-1
7.1.1 Specifications/Configuration/Operation Methods....................................................................................... 7-1
7.1.2 Locations of Main Units.............................................................................................................................. 7-1
7.1.3 Roller Layout Drawing................................................................................................................................ 7-1
7.1.4 Paper Path Drawing(Printer on its own)...................................................................................................... 7-2
7.1.5 Paper Path Drawing(Finisher-U1)............................................................................................................... 7-3
7.1.6 Paper Path Drawing(Duplex Unit-A1/Finisher-U1).................................................................................... 7-3
7.1.7 Paper Path Drawing(Duplex-A1) ................................................................................................................ 7-3
7.1.8 Paper Path Drawing(Duplex-A1/Inner 2Way Tray-E1).............................................................................. 7-4
7.1.9 Paper Path Drawing(Inner 2Way Tray-E1)................................................................................................. 7-4
7.1.10 Sensor Layout Drawing............................................................................................................................. 7-5
7.2 Detecting Jams ................................................................................................................................................... 7-6
7.2.1 Delay Jams .................................................................................................................................................. 7-6
7.2.1.1 Delay Jam in Pickup Assembly............................................................................................................ 7-6
7.2.1.2 Delay Jam in Delivery Assembly (Paper Leading Edge Jam at Delivery Sensor/Wound Paper Jam at
Fixing Assembly) ......................................................................................................................................... 7-6
7.2.2 Stationary Jams............................................................................................................................................ 7-6
7.2.2.1 Stationary Jam in Pickup Assembly..................................................................................................... 7-6
7.2.2.2 Stationary Jam in Delivery Assembly (Paper Trailing Edge Stationary Jam at Delivery Sensor/Stationary
Jam at Delivery Sensor)................................................................................................................................ 7-6
7.2.3 Other Jams................................................................................................................................................... 7-6
7.2.3.1 Door Open Jam..................................................................................................................................... 7-6
7.3 Cassette Pick-Up Unit ........................................................................................................................................ 7-6
7.3.1 Overview ..................................................................................................................................................... 7-6
7.3.2 Cassette Pickup Operation........................................................................................................................... 7-7
7.3.3 Cassette Paper Size Detection ..................................................................................................................... 7-8
7.4 Manual Feed Pickup Unit................................................................................................................................... 7-9
7.4.1 Overview ..................................................................................................................................................... 7-9
7.4.2 Post-pickup Control after Multi Manual Feed Pickup ................................................................................ 7-9
7.5 Parts Replacement Procedure........................................................................................................................... 7-10
7.5.1 Pickup Roller............................................................................................................................................. 7-10
7.5.1.1 Removing the Cassette Paper Pickup Roller...................................................................................... 7-10
7.5.2 Cassette Pickup Assembly......................................................................................................................... 7-10
7.5.2.1 Removing the Lower-left Cover......................................................................................................... 7-10
7.5.2.2 Removing the Cassette Pickup Assembly し ..................................................................................... 7-10
7.5.3 Cassette Size Sensor.................................................................................................................................. 7-10
7.5.3.1 Removing the Paper Size Detection Switches.................................................................................... 7-10
7.5.4 Cassette Retry Paper Sensor...................................................................................................................... 7-10
7.5.4.1 Removing the Cassette Pickup Assembly.......................................................................................... 7-10
7.5.4.2 Removing the Retry Sensor................................................................................................................ 7-11
7.5.5 Cassette Paper Sensor................................................................................................................................ 7-11
7.5.5.1 Removing the Cassette Pickup Assembly ...................................................................................... 7-11
7.5.5.2 Removing the Cassette Paper Presence/Absence Sensor ................................................................... 7-11
7.5.6 Cassette Pickup Solenoid .......................................................................................................................... 7-11