Contents
8.1 Construction ...............................................................................................................................................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 Fixing Film Temperature..................................................................................................................8- 2
8.2.1.1 Outline......................................................................................................................................................................................8- 2
8.2.1.2 Controlling the Fixing Film Temperature.................................................................................................................................. 8- 2
8.2.1.3 Target Temperatures by Mode ................................................................................................................................................8- 2
8.3 Protective Functions...................................................................................................................................8- 3
8.3.1 Outline......................................................................................................................................................................8- 3
8.3.2 Failure Detection......................................................................................................................................................8- 3
8.4 Parts Replacement Procedure ...................................................................................................................8- 5
8.4.1 Fixing Unit................................................................................................................................................................8- 5
8.4.1.1 Removing the Fixing Unit......................................................................................................................................................... 8- 5
8.4.1.2 Installing the Fixing unit ...........................................................................................................................................................8- 6
8.4.2 Pressure Roller........................................................................................................................................................8- 7
8.4.2.1 Removing the Pressure Roller.................................................................................................................................................8- 7
8.4.3 Fixing Film................................................................................................................................................................8- 7
8.4.3.1 Removing the Fixing Film Unit.................................................................................................................................................8- 7
8.4.4 Fixing Delivery Sensor.............................................................................................................................................8- 8
8.4.4.1 Removing the Delivery Sensor ................................................................................................................................................8- 8
Chapter 9 External and Controls
9.1 Control Panel..............................................................................................................................................9- 1
9.1.1 Outline......................................................................................................................................................................9- 1
9.2 Fans ...........................................................................................................................................................9- 1
9.2.1 Outline......................................................................................................................................................................9- 1
9.3 Power Supply System ................................................................................................................................9- 2
9.3.1 Power Supply...........................................................................................................................................................9- 2
9.3.1.1 Outline......................................................................................................................................................................................9- 2
9.3.1.2 Rated Output of the Power Supply PCB..................................................................................................................................9- 2
9.3.2 Protection Function..................................................................................................................................................9- 3
9.3.2.1 Protective Functions ................................................................................................................................................................9- 3
9.4 Parts Replacement Procedure ...................................................................................................................9- 4
9.4.1 External Covers .......................................................................................................................................................9- 4
9.4.1.1 External Covers .......................................................................................................................................................................9- 4
9.4.2 Drive Unit.................................................................................................................................................................9- 7
9.4.2.1 Removing the Main Drive Unit.................................................................................................................................................9- 7
9.4.2.2 Removing the Pickup Drive Unit.............................................................................................................................................. 9- 8
9.4.2.3 Removing the Fixing/Duplex Drive Unit ...................................................................................................................................9- 8
9.4.3 Power Supply Unit ...................................................................................................................................................9- 8
9.4.3.1 Removing the Power Supply PCB ...........................................................................................................................................9- 8
9.4.4 Control Panel...........................................................................................................................................................9- 8
9.4.4.1 Removing the Operation Panel Unit ........................................................................................................................................9- 8
9.4.5 Image Processor PCB .............................................................................................................................................9- 9
9.4.5.1 Removing the Image Processor PCB ...................................................................................................................................... 9- 9
9.4.5.2 Procedure after Replacing the Image Processor PCB........................................................................................................... 9- 10
9.4.6 NCU PCB...............................................................................................................................................................9- 10
9.4.6.1 Removing the NCU PCB........................................................................................................................................................ 9- 10
9.4.7 Modular Jack PCB.................................................................................................................................................9- 10
9.4.7.1 Removing the Modular Jack PCB..........................................................................................................................................9- 10
9.4.8 Modem PCB...........................................................................................................................................................9- 10
9.4.8.1 Removing the Modem PCB ...................................................................................................................................................9- 10
9.4.9 Network PCB .........................................................................................................................................................9- 11
9.4.9.1 Removing the Network PCB .................................................................................................................................................. 9- 11
9.4.10 Relay PCB............................................................................................................................................................9- 11
9.4.10.1 Removing the Relay PCB .................................................................................................................................................... 9- 11