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 .................................................................................. 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

7.5.5.2 Removing the Cassette Paper Presence/Absence Sensor ..................................................... 7- 11

7.5.6 Cassette Pickup Solenoid ..................................................................................................................... 7- 11

7.5.6.1 Removing the Cassette Pickup Assembly .................................................................................. 7- 11

7.5.6.2 Removing the Cassette Pickup Solenoid.................................................................................... 7- 12

7.5.7 Manual Feed Tray sensor ..................................................................................................................... 7- 12

7.5.7.1 Removing the Drum Unit ............................................................................................................... 7- 12

7.5.7.2 Removing the Transfer Registration Unit.................................................................................... 7- 12

7.5.7.3 Removing the Feed Guide ............................................................................................................ 7- 12

7.5.7.4 Removing the Multifeeder Paper Presence/Absence Sensor ................................................. 7- 12

7.5.8 Manual Feed Pickup Solenoid ............................................................................................................. 7- 13

7.5.8.1 Removing the Drum Unit ............................................................................................................... 7- 13

7.5.8.2 Removing the Transfer Registration Unit.................................................................................... 7- 13

7.5.8.3 Removing the Feed Guide ............................................................................................................ 7- 13

7.5.8.4 Removing the Multifeeder Connector Cover .............................................................................. 7- 13

7.5.8.5 Removing the Multifeeder Unit ..................................................................................................... 7- 13

7.5.8.6 Removing the Multifeeder Pickup Solenoid................................................................................ 7- 13

7.5.9 Registration Roller.................................................................................................................................. 7- 14

7.5.9.1 Removing the Drum Unit ............................................................................................................... 7- 14

7.5.9.2 Removing the Registration Roller ................................................................................................ 7- 14

7.5.10 Registration Clutch............................................................................................................................... 7- 14

7.5.10.1 Removing the Rear Cover........................................................................................................... 7- 14

7.5.10.2 Removing the Registration Clutch ............................................................................................. 7- 14

7.5.11 Separation Roller.................................................................................................................................. 7- 15

............................................................................. 7- 11

Contents

Table of Contents