Canon iR7086, Service Manual

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Contents
7.10.8.2
Removing the Sub Hopper Unit ........................................................................................................................................... 7- 36
7.10.9 Developing Assembly...........................................................................................................................................7- 37
7.10.9.1 Before Starting the Work...................................................................................................................................................... 7- 37
7.10.9.2 Removing the Developing Assembly ................................................................................................................................... 7- 38
7.10.9.3
Points to Note When the Developing Assembly................................................................................................................... 7- 38
7.10.9.4 Removing the Hopper .......................................................................................................................................................... 7- 38
7.10.10
Developing Cylinder ...........................................................................................................................................7- 39
7.10.10.1 Removing the Developing Cylinder .................................................................................................................................... 7- 39
7.10.11
Developing Blade ...............................................................................................................................................7- 40
7.10.11.1
Before Starting the Work .................................................................................................................................................... 7- 40
7.10.11.2 Removing the Blade Unit.................................................................................................................................................... 7- 40
7.10.11.3 Mounting the Blade ............................................................................................................................................................ 7- 40
7.10.12
Developing Cylinder Deceleration Clutch...........................................................................................................7- 40
7.10.12.1
Before Starting the Work .................................................................................................................................................... 7- 40
7.10.12.2
Removing the Developing Cylinder Decelerating Clutch.................................................................................................... 7- 40
7.10.13 Developing Cylinder Clutch ................................................................................................................................7- 41
7.10.13.1 Before Starting the Work .................................................................................................................................................... 7- 41
7.10.13.2 Removing the Developing Cylinder Clutch......................................................................................................................... 7- 41
7.10.14
Transfer/Separation Charging Assembly ...........................................................................................................7- 41
7.10.14.1
Removing the Transfer/Separation Charging Assembly .................................................................................................... 7- 41
7.10.15 Pre-Transfer Exposure LED ...............................................................................................................................7- 42
7.10.15.1
Removing the Pre-Transfer Exposure LED........................................................................................................................ 7- 42
7.10.16 Separation Claw/Separation Claw Drive Assembly............................................................................................7- 42
7.10.16.1 Separation Claw/Separation Claw Drive Assembly............................................................................................................ 7- 42
7.10.17 Potential Sensor .................................................................................................................................................7- 43
7.10.17.1 Removing the Potential Sensor Unit .................................................................................................................................. 7- 43
7.10.17.2
Removing the Potential Control PCB ................................................................................................................................. 7- 43
7.10.17.3 When Replacing the Potential Sensor/Potential Control PCB............................................................................................ 7- 44
7.10.18 Dust-Collecting Roller.........................................................................................................................................7- 44
7.10.18.1 Removing the Dust-Collecting Roller ................................................................................................................................. 7- 44
7.10.19 Charging Wire ....................................................................................................................................................7- 45
7.10.19.1 Outline ................................................................................................................................................................................ 7- 45
7.10.19.2
Removing the Wire Cleaner for the Primary Charging Assembly ...................................................................................... 7- 45
7.10.19.3 Removing the Wire Cleaner of the Transfer Separation Charging Assembly .................................................................... 7- 45
7.10.19.4 Stringing the Charging Wire ............................................................................................................................................... 7- 46
7.10.19.5 Stringing the Grid of the Primary Charging Assembly ........................................................................................................ 7- 47
7.10.19.6 Adjusting the Height of the Charging Wire ......................................................................................................................... 7- 47
Chapter 8
Pickup/Feeding System
8.1 Construction ............................................................................................................................................... 8- 1
8.1.1
Specifications and Construction...............................................................................................................................8- 1
8.1.2
Arrangement of Rollers and Sensors.......................................................................................................................8- 1
8.1.3 Control System ........................................................................................................................................................8- 2
8.1.4 Controlling the Pickup Motor (M2) ...........................................................................................................................8- 3
8.1.5
Index Paper Attachment ..........................................................................................................................................8- 4
8.2
Basic Sequence ......................................................................................................................................... 8- 5
8.2.1
Right Deck ...............................................................................................................................................................8- 5
8.2.2
Pickup from the cassette 4.......................................................................................................................................8- 5
8.3 Detecting Jams........................................................................................................................................... 8- 6
8.3.1
Jam Detection Outline..............................................................................................................................................8- 6
8.3.1.1
Outline...................................................................................................................................................................................... 8- 6
8.3.2
Delay Jams ..............................................................................................................................................................8- 7
8.3.2.1
Cassette Pickup (Right deck, Left deck, cassette 3, 4)............................................................................................................ 8- 7
8.3.2.2 Other Delay Jams .................................................................................................................................................................... 8- 7
8.3.3 Stationary Jams .......................................................................................................................................................8- 8
8.3.3.1 Common Stationary Jams........................................................................................................................................................ 8- 8
8.3.3.2
Stationary Jam at Power-On.................................................................................................................................................... 8- 9
8.4
Cassette Pick-Up Unit ................................................................................................................................ 8- 9