Canon iR3570 Service Manual page 14

Contents
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
7.12.9.12 Removing the Toner Level Sensor..................................................................................................................................... 7- 37
7.12.10 Toner Feedscrew Motor .....................................................................................................................................7- 37
7.12.10.1 Removing the Front Cover Unit.......................................................................................................................................... 7- 37
7.12.10.2 Removing the Waste Toner Case ...................................................................................................................................... 7- 37
7.12.10.3 Removing the Toner Cartridge ........................................................................................................................................... 7- 38
7.12.10.4 Removing the Drum Unit .................................................................................................................................................... 7- 38
7.12.10.5 Removing the Developing Assembly.................................................................................................................................. 7- 39
7.12.10.6 Removing the Upper Tray .................................................................................................................................................. 7- 40
7.12.10.7 Removing the Toner Cartridge Cover ................................................................................................................................ 7- 40
7.12.10.8 Removing the Pre-Exposure Lamp .................................................................................................................................... 7- 40
7.12.10.9 Removing the Left Cover.................................................................................................................................................... 7- 41
7.12.10.10 Removing the Laser Unit .................................................................................................................................................. 7- 41
7.12.10.11 Removing the Hopper Assembly ...................................................................................................................................... 7- 41
7.12.10.12 Removing the Toner Feedscrew Motor ............................................................................................................................ 7- 42
7.12.11 Static Charge Eliminator.....................................................................................................................................7- 42
7.12.11.1 Removing the Static Eliminator .......................................................................................................................................... 7- 42
Chapter 8 Pickup/Feeding System
8.1 Construction ............................................................................................................................................... 8- 1
8.1.1 Specifications, Controls, and Functions...................................................................................................................8- 1
8.1.2 Specifications, Controls, and Functions...................................................................................................................8- 1
8.1.3 Division into Blocks ..................................................................................................................................................8- 2
8.1.4 Division into Blocks ..................................................................................................................................................8- 2
8.1.5 Arrangement of Rollers ............................................................................................................................................8- 3
8.1.6 Arrangement of Rollers ............................................................................................................................................8- 4
8.1.7 Diagram of Paper Paths (printer on its own)............................................................................................................8- 5
8.1.8 Paper Path (printer unit on its own) .........................................................................................................................8- 6
8.1.9 Diagram of Paper Paths (w/ copy tray ) ...................................................................................................................8- 7
8.1.10 Diagram of Paper Paths (w/ 3 Way Unit-A1 /copy tray) .........................................................................................8- 7
8.1.11 Paper path (w/ expansion output kit, output tray)...................................................................................................8- 8
8.1.12 Diagram of Paper Paths (w/ Finisher-S1/copy tray)...............................................................................................8- 9
8.1.13 Paper Path (w/ Finer-S1, output tray) ....................................................................................................................8- 9
8.1.14 Diagram of Paper Paths (w/ Finisher-Q3/Saddle Finisher-Q4) ............................................................................8- 10
8.1.15 Arrangement of Sensors ......................................................................................................................................8- 11
8.1.16 Arrangement of Sensors ......................................................................................................................................8- 11
8.1.17 Route of Drive ......................................................................................................................................................8- 12
8.1.18 Route of Drive ......................................................................................................................................................8- 13
8.2 Basic Sequence ....................................................................................................................................... 8- 14
8.2.1 Basic Sequence ....................................................................................................................................................8- 14
8.2.2 Increase in Speed ..................................................................................................................................................8- 14
8.2.3 Acceleration Intervals.............................................................................................................................................8- 16
8.2.4 Increase in Speed ..................................................................................................................................................8- 18
8.3 Detecting Jams......................................................................................................................................... 8- 19
8.3.1 Delay Jams ............................................................................................................................................................8- 19