Service manual

Contents
7.4 Duplex Unit................................................................................................................................................. 7- 4
7.4.1 Outline......................................................................................................................................................................7- 4
7.5 Manual Feed Pickup Unit ........................................................................................................................... 7- 5
7.5.1 Outline......................................................................................................................................................................7- 5
7.5.2 Retry Pickup.............................................................................................................................................................7- 5
7.5.3 Detecting the Size of Paper .....................................................................................................................................7- 5
7.6 Parts Replacement Procedure ................................................................................................................... 7- 6
7.6.1 Cassette Pickup Roller.............................................................................................................................................7- 6
7.6.1.1 Removing the Cassette Pickup Roller ..................................................................................................................................... 7- 6
7.6.2 Cassette Separation Roller......................................................................................................................................7- 6
7.6.2.1 Removing the Cassette Separation Roller............................................................................................................................... 7- 6
7.6.3 Cassette Paper Sensor............................................................................................................................................7- 6
7.6.3.1 Removing the Cassette Paper Sensor..................................................................................................................................... 7- 6
7.6.4 Cassette Pickup Solenoid........................................................................................................................................7- 7
7.6.4.1 Removing the Cassette Pickup Solenoid................................................................................................................................. 7- 7
7.6.5 Paper Feed Roller....................................................................................................................................................7- 7
7.6.5.1 Removing the Cassete Feed Roller ........................................................................................................................................ 7- 7
7.6.6 Manual Pickup Roller...............................................................................................................................................7- 7
7.6.6.1 Removing the Manual Pickup Roller........................................................................................................................................ 7- 7
7.6.7 Manual Pickup Sensor.............................................................................................................................................7- 8
7.6.7.1 Removing the Manual Tray Sensor ........................................................................................................................................ 7- 8
7.6.8 Manual Pickup Solenoid ..........................................................................................................................................7- 8
7.6.8.1 Removing the Manual Pickup Solenoid ................................................................................................................................... 7- 8
7.6.9 Manual Separation Roller ........................................................................................................................................7- 8
7.6.9.1 Removing the Manual Separation Pad .................................................................................................................................... 7- 8
7.6.10 Registration Roller..................................................................................................................................................7- 8
7.6.10.1 Removing the Registration Roller .......................................................................................................................................... 7- 8
7.6.11 Registration Sensor................................................................................................................................................7- 9
7.6.11.1 Removing the Registration Sensor ........................................................................................................................................ 7- 9
7.6.12 Duplex Pick-up Solenoid......................................................................................................................................7- 10
7.6.12.1 Removing the Duplex Pickup Solenoid ................................................................................................................................ 7- 10
7.6.13 Registration Clutch...............................................................................................................................................7- 10
7.6.13.1 Removing the Registration Clutch........................................................................................................................................ 7- 10
7.6.14 Main Motor ...........................................................................................................................................................7- 10
7.6.14.1 Removing the Main Motor.................................................................................................................................................... 7- 10
Chapter 8 Fixing System
8.1 Overview/Configuration .............................................................................................................................. 8- 1
8.1.1 Specifications, Control Mechanisms, and Functions ...............................................................................................8- 1
8.1.2 Outline......................................................................................................................................................................8- 1
8.2 Various Control Mechanisms ..................................................................................................................... 8- 2
8.2.1 Controlling the Temperature of the Fixing Unit ........................................................................................................8- 2
8.2.1.1 Outline...................................................................................................................................................................................... 8- 2
8.2.2 Controlling the Fixing Film Temperature..................................................................................................................8- 2
8.2.2.1 Controlling the Fixing Film Temperature.................................................................................................................................. 8- 2
8.2.2.2 Target Temperatures by Mode ................................................................................................................................................ 8- 2
8.3 Protection Function .................................................................................................................................... 8- 3
8.3.1 Outline......................................................................................................................................................................8- 3
8.3.2 Failure Detection......................................................................................................................................................8- 3
8.4 Parts Replacement Procedure ................................................................................................................... 8- 4
8.4.1 Fixing Unit................................................................................................................................................................8- 4
8.4.1.1 Removing the Fixing Unit......................................................................................................................................................... 8- 4
8.4.2 Fixing Film Unit ........................................................................................................................................................8- 5
8.4.2.1 Removing the Fixing Film Unit ................................................................................................................................................. 8- 5
8.4.3 Fixing Pressure Roller..............................................................................................................................................8- 6
8.4.3.1 Removing the Pressure Roller ................................................................................................................................................. 8- 6
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