Canon iR105 Service Manual page 13

4.3 Disassembly/Assembly ............ 2-54
4.3.1 Laser Unit .......................... 2-55
4.3.2 BD Unit ............................. 2-56
5 Image Formation System .................. 2-59
5.1 Outline of the Image Formation
System ...................................... 2-59
5.2 Changes Made to the Image
Formation System .................... 2-61
5.3 Addition of the Pre-Transfer
Exposure LED ......................... 2-62
5.4 Measures Against Overheating
of the Developing Unit ............ 2-62
5.5 Addition of the Developing
Fan ........................................... 2-62
5.6 Modifying the Developing
Cylinder Cover ......................... 2-63
5.7 Preventing Adhesion of Toner
to the Cleaning Blade ............... 2-64
5.8 Disassembly/Assembly ............ 2-65
5.8.1 Process Unit ....................... 2-66
5.8.2 Drum Cleaner Unit ............ 2-71
5.8.3 Charging Wires .................. 2-74
5.8.4 Area Around the Process
Unit .................................... 2-80
6 Pickup/Feeding System .................... 2-83
6.1 Outline of the Pickup/Feeding
System ...................................... 2-83
6.2 Changes Made to the Pickup/
Feeding System ........................ 2-84
6.3 Optical Sensors ........................ 2-86
6.4 Image Write Start Sensor ......... 2-86
6.5 Index Paper Attachment ........... 2-88
6.6 Disassembly/Assembly ............ 2-89
6.6.1 Manual Feed Tray
Assembly ........................... 2-90
6.6.2 Cassette Pickup
Assembly ........................... 2-94
6.6.3 Vertical Path Roller
Assembly ........................... 2-96
6.6.4 Registration Feed
Assembly ........................... 2-99
6.6.5 Duplex Unit ..................... 2-100
COPYRIGHT© 2001 CANON INC. 2000 2000 2000 2000 CANON iR105 REV.0 JULY 2001
6.6.6 Others .............................. 2-103
7 Fixing System ................................. 2-105
7.1 Outline of the Fixing
System .................................... 2-105
7.2 Changes Made to the Fixing
System .................................... 2-107
7.3 Fixing Temperature Control ... 2-109
7.4 Transparency Mode ............... 2-110
7.5 Thick Paper Mode .................. 2-111
7.6 Power Save Mode .................. 2-112
7.7 Detecting an Error .................. 2-113
7.8 Down Sequence Control ........ 2-114
7.9 Disassembly/Assembly .......... 2-115
7.9.1 Fixing Heater and
the Control Parts .............. 2-116
7.9.2 Fixing Roller Assembly ... 2-122
7.9.3 Delivery Assembly ........... 2-125
7.9.4 Paper Sensors ................... 2-128
8 Externals/Auxiliary Controls .......... 2-131
8.1 Changes Made to Externals/
Auxiliary Controls ................. 2-131
8.2 Fans ........................................ 2-132
8.3 Sequence of Fan Operation .... 2-134
8.4 Disassembly/Assembly .......... 2-136
8.4.1 External Covers ............... 2-137
8.4.2 Control Panel ................... 2-145
8.4.3 Fans .................................. 2-153
8.4.4 Drive Assembly ............... 2-166
8.4.5 Switches ........................... 2-170
8.4.6 PCBs ................................ 2-172
8.4.7 Others .............................. 2-184
9 Side Paper Deck-N1 ....................... 2-187
9.1 Outline of the Side Paper
Deck ................................. 2-187
9.2 Changes made to the Side
Paper Deck ....................... 2-189
9.3 Optical Sensors ................ 2-190
9.4 Disassembly/Assembly .... 2-191
9.4.1 Removing the Deck
Pickup Sensor Unit .......... 2-192
9.4.2 Removing the Deck Feed
Sensor Unit ...................... 2-193
CONTENTS
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