Canon iR7086 Series Service Manual page 15

8.4.1 Outline ..................................................................................................................................................................... 8- 9
8.4.2 Detecting the Presence/Absence of Paper............................................................................................................ 8- 10
8.4.3 Detecting the Level of Paper ................................................................................................................................. 8- 11
8.4.4 Cassette 3/4 .......................................................................................................................................................... 8- 12
8.4.5 Markings on the Width Guide Rail ......................................................................................................................... 8- 13
8.4.6 Paper Size ............................................................................................................................................................. 8- 13
8.5 Manual Feed Pickup Unit .........................................................................................................................8- 16
8.5.1 Pickup Operation ................................................................................................................................................... 8- 16
8.5.2 Detecting the Paper Size....................................................................................................................................... 8- 16
8.6 Deck .........................................................................................................................................................8- 17
8.6.1 Outline ................................................................................................................................................................... 8- 17
8.6.2 Lifter Limiter (deck right/left) .................................................................................................................................. 8- 18
8.6.3 Detecting the Presence/Absence of Paper............................................................................................................ 8- 19
8.6.4 Detecting the Level of Paper ................................................................................................................................. 8- 20
8.6.5 Cassette Deck Right/Left....................................................................................................................................... 8- 21
8.7 Registration Unit .......................................................................................................................................8- 22
8.7.1 Outline ................................................................................................................................................................... 8- 22
8.7.2 Sequence of Operations (registration brake)......................................................................................................... 8- 22
8.8 Duplex Feeding Unit .................................................................................................................................8- 23
8.8.1 Copying on the First Side ...................................................................................................................................... 8- 23
8.8.2 Copying on the Second Side ................................................................................................................................. 8- 23
8.8.3 Sequence of Operations........................................................................................................................................ 8- 24
8.8.4 Controlling the reversal motor (M11) ..................................................................................................................... 8- 24
8.8.5 Controlling the duplexing feeder motor (M12) ....................................................................................................... 8- 25
8.8.6 No-Stacking Operation .......................................................................................................................................... 8- 26
8.8.7 Detecting the Horizontal Registration Position ...................................................................................................... 8- 30
8.8.8 Controlling the Horizontal Registration Motor (M15) ............................................................................................. 8- 32
8.9 Delivery.....................................................................................................................................................8- 33
8.9.1 Reversal Delivery .................................................................................................................................................. 8- 33
8.10 Detecting the Double-Feed .....................................................................................................................8- 34
8.10.1 Detecting Double Feeding ................................................................................................................................... 8- 34
8.11 Parts Replacement Procedure................................................................................................................8- 36
8.11.1 Cassette Pickup Assembly .................................................................................................................................. 8- 36
8.11.1.1 Removing the Right Deck / Cassette Pickup Assembly....................................................................................................... 8- 36
8.11.1.2 Removing the Vertical Path 3/4 Sensor and the Cassette 3/4 Pickup Sensor..................................................................... 8- 36
8.11.2 Cassette Lifter Motor ........................................................................................................................................... 8- 36
8.11.2.1 Removing the Lifter Motor (M16/M17) of the Cassette (3/4)................................................................................................ 8- 36
8.11.3 Right Deck Pickup Assembly............................................................................................................................... 8- 36
8.11.3.1 Removing the Right Deck / Cassette Pickup Assembly....................................................................................................... 8- 36
8.11.4 Left Deck Pickup Assembly ................................................................................................................................. 8- 37
8.11.4.1 Removing the Left Deck Pickup Assembly .......................................................................................................................... 8- 37
8.11.5 Left Deck Pickup Sensor ..................................................................................................................................... 8- 37
8.11.5.1 Removing the Left Deck Pickup Sensor............................................................................................................................... 8- 37
8.11.6 Right Deck Pickup Sensor ................................................................................................................................... 8- 37
8.11.6.1 Removing the Right Deck Feed Sensor/Right Deck Pickup Sensor .................................................................................... 8- 37
8.11.7 Manual Tray Assembly ........................................................................................................................................ 8- 38
8.11.7.1 Removing the Manual Feeder Tray Unit .............................................................................................................................. 8- 38
8.11.7.2 Fitting the Side Guide Timing Belt for the Manual Feed Tray Assembly.............................................................................. 8- 38
8.11.8 Manual Feed Pull-Out Roller Unit ........................................................................................................................ 8- 39
8.11.8.1 Removing the Manual Feeder Pull-Off Roller Unit ............................................................................................................... 8- 39
8.11.9 Manual Pickup Roller........................................................................................................................................... 8- 39
8.11.9.1 Removing the Pickup Roller................................................................................................................................................. 8- 39
8.11.9.2 Mounting the Pickup Roller .................................................................................................................................................. 8- 39
8.11.10 Manual Feed Roller............................................................................................................................................ 8- 40
8.11.10.1 Removing the Feeding Roller............................................................................................................................................. 8- 40
8.11.10.2 Orientation of the Feeding Roller ....................................................................................................................................... 8- 40
8.11.10.3 Removing the multiple curling prevention roller ................................................................................................................. 8- 40
Contents