Canon imageRUNNER 2270 Service Manual page 283

8.6 Registration Unit...................................................................................................... 8-45
8.6.1 Overview........................................................................................................... 8-45
8.6.2 Checking Horizontal Registration..................................................................... 8-46
8.7 Duplex Feeding Unit................................................................................................ 8-47
8.7.1 Overview........................................................................................................... 8-47
8.7.2 Overview........................................................................................................... 8-50
8.7.3 Sequence of Image Formation .......................................................................... 8-51
8.7.4 Sequence of Image Formation .......................................................................... 8-53
8.7.5 Flow of Paper (w/o/ delivery option)................................................................ 8-55
8.7.6 Flow of Paper (w/ delivery option) ................................................................... 8-62
8.7.7 Flow of Paper ................................................................................................... 8-69
8.8 Parts Replacement Procedure .................................................................................. 8-76
8.8.1 Pick-up Unit 1 ................................................................................................... 8-76
8.8.2 Pick-up Unit 2 ................................................................................................... 8-79
8.8.3 Pickup Roller ..................................................................................................... 8-80
8.8.4 Sensor Mount .................................................................................................... 8-80
8.8.5 Cassette Pick-up Motor 1 .................................................................................. 8-83
8.8.6 Cassette Pick-up Motor 2 .................................................................................. 8-85
8.8.7 Cassette Size Sensor .......................................................................................... 8-87
8.8.8 Cassette Retry Paper Sensor ............................................................................. 8-89
8.8.9 Cassette Paper Sensor ....................................................................................... 8-90
8.8.10 Cassette Paper Level Sensor (A/B) ................................................................. 8-90
8.8.11 Slide Resistor .................................................................................................. 8-91
8.8.12 Cassette Pickup Solenoid ................................................................................ 8-92
8.8.13 Cassette Size Sensor Relay PCB ..................................................................... 8-95
8.8.14 Manual Tray Assembly ................................................................................... 8-96
8.8.15 Manual Feed Unit ............................................................................................ 8-96
8.8.16 Manual Pickup Roller ..................................................................................... 8-98
8.8.17 Manual Pick-up Clutch ................................................................................... 8-99
8.8.18 Manual Separation Pad ................................................................................. 8-102
8.8.19 Registration Clutch ....................................................................................... 8-102
8.8.20 Feeding Roller ............................................................................................... 8-105
8.8.21 Vertical Path Roller ....................................................................................... 8-105
8.8.22 Duplex Feed Roller 2 .................................................................................... 8-106
8.8.23 Duplex Feed Sensor ...................................................................................... 8-107
8.8.24 Duplex Feed Clutch ...................................................................................... 8-108
8.8.25 Delivery Assembly 1 ..................................................................................... 8-108
8.8.26 Fixing/ Delivery Drive Assembly ................................................................. 8-111
8.8.27 Separation Roller ........................................................................................... 8-113