Canon iR6570 series Service Manual page 196

Contents
7.10.1.2 Removing the Developing Assembly ......................................................................................................................................................... 7-25
7.10.1.3 Removing the Process Unit ........................................................................................................................................................................ 7-25
7.10.1.4 Mounting the Process Unit ......................................................................................................................................................................... 7-26
7.10.2 Pre-Exposure Lamp ................................................................................................................................................................. 7-27
7.10.2.1 Removing the Primary Fan Duct ................................................................................................................................................................ 7-27
7.10.2.2 Removing the Developing Assembly ......................................................................................................................................................... 7-27
7.10.2.3 Removing the Process Unit ........................................................................................................................................................................ 7-28
7.10.2.4 Removing the Primary Charging Assembly ............................................................................................................................................... 7-29
7.10.2.5 Removing the Potential Sensor Assembly.................................................................................................................................................. 7-29
7.10.2.6 Removing the Pre-Exposure Lamp Unit..................................................................................................................................................... 7-29
7.10.2.7 Cleaning the Primary Anti-Stray Sheet ...................................................................................................................................................... 7-30
7.10.3 Primary Charging Assembly.................................................................................................................................................... 7-30
7.10.3.1 Removing the Primary Fan Duct ................................................................................................................................................................ 7-30
7.10.3.2 Removing the Primary Charging Assembly ............................................................................................................................................... 7-30
7.10.4 Pre-Transfer Charging Assembly ............................................................................................................................................ 7-31
7.10.4.1 Removing the Primary Fan Duct ................................................................................................................................................................ 7-31
7.10.4.2 Removing the Pre-Transfer Charging Assembly........................................................................................................................................ 7-31
7.10.5 Photosensitive Drum................................................................................................................................................................ 7-31
7.10.5.1 Points to Note When Handling the Photosensitive Drum........................................................................................................................... 7-31
7.10.5.2 Removing the Primary Fan Duct ................................................................................................................................................................ 7-31
7.10.5.3 Removing the Developing Assembly ......................................................................................................................................................... 7-32
7.10.5.4 Removing the Process Unit ........................................................................................................................................................................ 7-32
7.10.5.5 Removing the Primary Charging Assembly ............................................................................................................................................... 7-33
7.10.5.6 Removing the Pre-Transfer Charging Assembly........................................................................................................................................ 7-34
7.10.5.7 Removing the Potential Sensor Assembly.................................................................................................................................................. 7-34
7.10.5.8 Removing the Drum Unit ........................................................................................................................................................................... 7-34
7.10.5.9 Cleaning the Photosensitive Drum ............................................................................................................................................................. 7-35
7.10.6 Drum Cleaner Unit................................................................................................................................................................... 7-35
7.10.6.1 Construction................................................................................................................................................................................................ 7-35
7.10.6.2 Removing the Primary Fan Duct ................................................................................................................................................................ 7-35
7.10.6.3 Removing the Developing Assembly ......................................................................................................................................................... 7-36
7.10.6.4 Sliding Out the Process Unit ...................................................................................................................................................................... 7-36
7.10.6.5 Removing the Primary Charging Assembly ............................................................................................................................................... 7-37
7.10.6.6 Removing the Cleaning Blade .................................................................................................................................................................... 7-38
7.10.6.7 Mounting the Cleaning Blade ..................................................................................................................................................................... 7-38
7.10.6.8 Mounting the Side Seal............................................................................................................................................................................... 7-38
7.10.6.9 Cleaning the Cleaner Side Scraper ............................................................................................................................................................. 7-39
7.10.7 Drum Motor ............................................................................................................................................................................. 7-39
7.10.7.1 Removing the Rear Cover (upper).............................................................................................................................................................. 7-39
7.10.7.2 Removing the Rear Cover (lower).............................................................................................................................................................. 7-40
7.10.7.3 Removing the Main Controller Box ........................................................................................................................................................... 7-40
7.10.7.4 Removing the Waste Toner Bottle Holder ................................................................................................................................................. 7-41
7.10.7.5 Removing the Drum Motor......................................................................................................................................................................... 7-41
7.10.8 Photosensitive Drum Heater .................................................................................................................................................... 7-42
7.10.8.1 Points to Note When Handling the Photosensitive Drum........................................................................................................................... 7-42
7.10.8.2 Removing the Primary Fan Duct ................................................................................................................................................................ 7-42
7.10.8.3 Removing the Developing Assembly ......................................................................................................................................................... 7-42
7.10.8.4 Removing the Process Unit ........................................................................................................................................................................ 7-43
7.10.8.5 Removing the Primary Charging Assembly ............................................................................................................................................... 7-44
7.10.8.6 Removing the Pre-Transfer Charging Assembly........................................................................................................................................ 7-44
7.10.8.7 Removing the Potential Sensor Assembly.................................................................................................................................................. 7-44
7.10.8.8 Removing the Drum Unit ........................................................................................................................................................................... 7-45
7.10.8.9 Replacing the Drum Heater ........................................................................................................................................................................ 7-45
7.10.8.10 Mounting the Drum Heater...................................................................................................................................................................... 7-46
7.10.9 Hopper Assembly..................................................................................................................................................................... 7-46
7.10.9.1 Removing the Primary Fan Duct ............................................................................................................................................................... 7-46
7.10.9.2 Removing the Hopper Assembly ................................................................................................................................................................ 7-46
7.10.10 Hopper Supply Motor ............................................................................................................................................................ 7-47
7.10.10.1 Removing the Primary Fan Duct .............................................................................................................................................................. 7-47
7.10.10.2 Removing the Right Cover (upper) .......................................................................................................................................................... 7-47
7.10.10.3 Removing the Front Cover ....................................................................................................................................................................... 7-47