Canon iR4570 Series Service Manual page 235

7.12.6.1 Removing the Developing Cylinder................................................................................................. 7-72
7.12.7 Transfer Charging Roller......................................................................................................................... 7-76
7.12.7.1 Removing the Transfer Roller .......................................................................................................... 7-76
7.12.8 Waste Toner Box..................................................................................................................................... 7-78
7.12.8.1 Removing the Front Cover Unit ....................................................................................................... 7-78
7.12.8.2 Removing the Waste Toner Case ..................................................................................................... 7-79
7.12.9 Toner Level Sensor ................................................................................................................................. 7-80
7.12.9.1 Removing the Front Cover Unit ....................................................................................................... 7-80
7.12.9.2 Removing the Waste Toner Case ..................................................................................................... 7-81
7.12.9.3 Removing the Toner Cartridge......................................................................................................... 7-82
7.12.9.4 Removing the Drum Unit ................................................................................................................. 7-83
7.12.9.5 Removing the Developing Assembly............................................................................................... 7-85
7.12.9.6 Removing the Upper Tray ................................................................................................................ 7-87
7.12.9.7 Removing the Toner Cartridge Cover .............................................................................................. 7-88
7.12.9.8 Removing the Pre-Exposure Lamp .................................................................................................. 7-88
7.12.9.9 Removing the Left Cover ................................................................................................................. 7-89
7.12.9.10 Removing the Laser Unit................................................................................................................ 7-90
7.12.9.11 Removing the Hopper Assembly.................................................................................................... 7-92
7.12.9.12 Removing the Toner Level Sensor ................................................................................................. 7-93
7.12.10 Toner Feedscrew Motor ....................................................................................................................... 7-94
7.12.10.1 Removing the Front Cover Unit ..................................................................................................... 7-94
7.12.10.2 Removing the Waste Toner Case ................................................................................................... 7-94
7.12.10.3 Removing the Toner Cartridge....................................................................................................... 7-95
7.12.10.4 Removing the Drum Unit ............................................................................................................... 7-96
7.12.10.5 Removing the Developing Assembly............................................................................................. 7-98
7.12.10.6 Removing the Upper Tray ............................................................................................................ 7-101
7.12.10.7 Removing the Toner Cartridge Cover .......................................................................................... 7-102
7.12.10.8 Removing the Pre-Exposure Lamp .............................................................................................. 7-102
7.12.10.9 Removing the Left Cover ............................................................................................................. 7-103
7.12.10.10 Removing the Laser Unit............................................................................................................ 7-103
7.12.10.11 Removing the Hopper Assembly................................................................................................ 7-105
7.12.10.12 Removing the Toner Feedscrew Motor...................................................................................... 7-107
7.12.11 Static Charge Eliminator ..................................................................................................................... 7-108
7.12.11.1 Removing the Static Eliminator ................................................................................................... 7-108
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