Canon iR3570 Service Manual page 234

Contents
7.12.1.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-12
7.12.1.2 Removing the Waste Toner Case................................................................................................................................................................ 7-12
7.12.1.3 Removing the Toner Cartridge ................................................................................................................................................................... 7-12
7.12.1.4 Removing the Drum Unit ........................................................................................................................................................................... 7-13
7.12.1.5 Removing the Developing Assembly ......................................................................................................................................................... 7-13
7.12.1.6 Removing the Upper Tray .......................................................................................................................................................................... 7-14
7.12.1.7 Removing the Toner Cartridge Cover ........................................................................................................................................................ 7-15
7.12.1.8 Removing the Pre-Exposure Lamp............................................................................................................................................................. 7-15
7.12.2 Drum Unit ................................................................................................................................................................................ 7-15
7.12.2.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-15
7.12.2.2 Removing the Waste Toner Case................................................................................................................................................................ 7-15
7.12.2.3 Removing the Drum Unit ........................................................................................................................................................................... 7-16
7.12.3 Hopper Assembly..................................................................................................................................................................... 7-16
7.12.3.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-16
7.12.3.2 Removing the Waste Toner Case................................................................................................................................................................ 7-17
7.12.3.3 Removing the Toner Cartridge ................................................................................................................................................................... 7-17
7.12.3.4 Removing the Drum Unit ........................................................................................................................................................................... 7-17
7.12.3.5 Removing the Developing Assembly ......................................................................................................................................................... 7-18
7.12.3.6 Removing the Upper Tray .......................................................................................................................................................................... 7-19
7.12.3.7 Removing the Toner Cartridge Cover ........................................................................................................................................................ 7-19
7.12.3.8 Removing the Pre-Exposure Lamp............................................................................................................................................................. 7-20
7.12.3.9 Removing the Left Cover ........................................................................................................................................................................... 7-20
7.12.3.10 Removing the Laser Unit .......................................................................................................................................................................... 7-20
7.12.3.11 Removing the Hopper Assembly .............................................................................................................................................................. 7-21
7.12.4 Sub Hopper .............................................................................................................................................................................. 7-21
7.12.4.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-21
7.12.4.2 Removing the Waste Toner Case................................................................................................................................................................ 7-22
7.12.4.3 Removing the Toner Cartridge ................................................................................................................................................................... 7-22
7.12.4.4 Removing the Drum Unit ........................................................................................................................................................................... 7-22
7.12.4.5 Removing the Developing Assembly ......................................................................................................................................................... 7-23
7.12.4.6 Removing the Upper Tray .......................................................................................................................................................................... 7-24
7.12.4.7 Removing the Toner Cartridge Cover ........................................................................................................................................................ 7-24
7.12.4.8 Removing the Pre-Exposure Lamp............................................................................................................................................................. 7-25
7.12.4.9 Removing the Left Cover ........................................................................................................................................................................... 7-25
7.12.4.10 Removing the Laser Unit .......................................................................................................................................................................... 7-25
7.12.4.11 Removing the Hopper Assembly .............................................................................................................................................................. 7-26
7.12.4.12 Removing the Toner Feedscrew Motor .................................................................................................................................................... 7-26
7.12.4.13 Removing the Sub Hopper........................................................................................................................................................................ 7-27
7.12.5 Developing Assembly.............................................................................................................................................................. 7-28
7.12.5.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-28
7.12.5.2 Removing the Waste Toner Case................................................................................................................................................................ 7-28
7.12.5.3 Removing the Developing Assembly ......................................................................................................................................................... 7-28
7.12.6 Developing Cylinder................................................................................................................................................................ 7-29
7.12.6.1 Detaching the Developing Cylinder ........................................................................................................................................................... 7-29
7.12.7 Transfer Charging Roller ......................................................................................................................................................... 7-31
7.12.7.1 Removing the Transfer Roller .................................................................................................................................................................... 7-31
7.12.8 Waste Toner Box ..................................................................................................................................................................... 7-31
7.12.8.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-31
7.12.8.2 Removing the Waste Toner Case................................................................................................................................................................ 7-32
7.12.9 Toner Level Sensor .................................................................................................................................................................. 7-32
7.12.9.1 Removing the Front Cover Unit ................................................................................................................................................................. 7-32
7.12.9.2 Removing the Waste Toner Case................................................................................................................................................................ 7-32
7.12.9.3 Removing the Toner Cartridge ................................................................................................................................................................... 7-33
7.12.9.4 Removing the Drum Unit ........................................................................................................................................................................... 7-33
7.12.9.5 Removing the Developing Assembly ......................................................................................................................................................... 7-34
7.12.9.6 Removing the Upper Tray .......................................................................................................................................................................... 7-35
7.12.9.7 Removing the Toner Cartridge Cover ........................................................................................................................................................ 7-35
7.12.9.8 Removing the Pre-Exposure Lamp............................................................................................................................................................. 7-35
7.12.9.9 Removing the Left Cover ........................................................................................................................................................................... 7-35
7.12.9.10 Removing the Laser Unit .......................................................................................................................................................................... 7-36
7.12.9.11 Removing the Hopper Assembly .............................................................................................................................................................. 7-36