Canon imageRUNNER 2270 Service Manual page 872

Contents
4.1 External Covers.......................................................................................................... 4-1
4.1.1 Rear Cover ..........................................................................................................4-1
4.1.2 Right Cover .........................................................................................................4-1
4.1.3 Rear Right Cover .................................................................................................4-2
4.1.4 Front Right Cover ...............................................................................................4-2
4.1.5 Lower Right Cover ..............................................................................................4-3
4.2 Drive System.............................................................................................................. 4-3
4.2.1 Cassette Pickup Motor 3 .....................................................................................4-4
4.2.2 Cassette Pickup Motor 4 .....................................................................................4-7
4.3 Document Feeding System ........................................................................................ 4-9
4.3.1 Pick-up Unit 3 .....................................................................................................4-9
4.3.2 Pick-up Unit 4 ...................................................................................................4-10
4.3.3 Pickup Rollor ....................................................................................................4-12
4.3.4 Separation Rollor ..............................................................................................4-13
4.3.5 Feed Rollor ........................................................................................................4-14
4.3.6 Vertical Path Rollor ...........................................................................................4-15
4.3.7 Sensor Mounting ...............................................................................................4-16
4.4 Electrical System ..................................................................................................... 4-19
4.4.1 Cassette Size Detection Unit .............................................................................4-19
4.4.2 Pedestal Controller PCB ...................................................................................4-20
4.4.3 Cassette Retry Paper Sensor ..............................................................................4-21
4.4.4 Cassette Paper Sensor .......................................................................................4-23
4.4.5 Cassette Paper Level Sensor (A/B) ...................................................................4-24
4.4.6 Cassette Pickup Solenoid ..................................................................................4-27
4.4.7 Right Door Open/Closed Sensor .......................................................................4-28
Contents