Canon iR1200 Series Service Manual page 10

CONTENTS
6.2.4 Detecting a Fault in the
Fixing Assembly ................ 4-29
7 Power Supply System ....................... 4-31
7.1 Low Voltage Circuit ................. 4-31
7.1.1 Low Voltage Power
Supply Circuit .................... 4-31
7.1.2 Protective Functions .......... 4-33
7.2 High-Voltage Power
Supply Circuit .......................... 4-33
7.3 Controlling the ESS
Mechanism ............................... 4-33
7.3.1 Outline ............................... 4-33
7.3.2 Operation ........................... 4-33
8 Others ................................................ 4-34
8.1 Fan ........................................... 4-34
8.1.1 Outline ............................... 4-34
8.2 Back-Up Batteries .................... 4-35
8.2.1 Back-Up Function ............. 4-35
8.2.1.1 Outline .......................... 4-35
CHAPTER 5 MECHANICAL SYSTEM
1 Points to Note When Disassembling/
Assembling the Machine .................... 5-1
2 Disassembly ........................................ 5-4
2.1 Externals/Auxiliary System ....... 5-4
2.1.1 External Covers ................... 5-4
2.1.1.1 Removing the Left Cover/
Rear Cover ...................... 5-5
2.1.1.2 Removing the Right
Cover .............................. 5-5
2.1.1.3 Removing the Toner
Supply Cover .................. 5-6
2.1.1.4 Removing the Front
Cover .............................. 5-7
2.1.1.5 Removing the Delivery
Cover .............................. 5-7
2.1.1.6 Removing the Delivery
Upper Cover/Delivery
Rear Cover ...................... 5-8
2.1.1.7 Removing the Cartridge
Cover .............................. 5-8
2.1.1.8 Removing the Upper
Cover .............................. 5-9
2.1.1.9 Removing the Right
Door .............................. 5-11
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COPYRIGHT © 2002 CANON INC.
8.2.1.2 Lithium Battery (BAT1) ... 4-35
8.2.1.3 Vanadium Lithium Second-
ary Battery (BAT2) ....... 4-37
8.2.2 Back-Up Data .................... 4-38
8.2.2.1 Types of Data ................ 4-38
8.2.2.2 Printing the Backup
Data List ....................... 4-40
9 ADF (if equipped with ADF
functions) .......................................... 4-41
9.1 Outline ..................................... 4-41
9.2 Picking Up and Moving
Originals ................................... 4-42
9.2.1 Outline ............................... 4-42
9.2.2 Moving Down the Original
Pickup Roller and Moving Up
the Original Stopper .......... 4-43
9.3 Detecting an Original Jam ....... 4-44
9.3.1 Outline ............................... 4-44
9.3.2 Types of Jams .................... 4-44
2.1.2 Removing the Control
Panel .................................. 5-11
2.1.3 Removing the Copyboard
Glass .................................. 5-13
2.1.4 Removing the Main Motor
Unit .................................... 5-14
2.1.5 Remove the Fan ................. 5-17
2.1.6 Removing the Reader Unit
Slide Detecting Switch ...... 5-19
2.1.7 Removing the Toner Supply
Cover Switch ..................... 5-20
2.1.8 Removing the Humidity
Sensor ................................ 5-20
2.1.9 Removing the Toner Bottle
Sensor ................................ 5-21
2.1.10 Removing the Waste Toner
Full Sensor ......................... 5-21
2.2 PCBs ........................................ 5-22
2.2.1 Removing the Image
Processor PCB ................... 5-22
2.2.2 Removing the Analog
Processor PCB ................... 5-23
2.2.3 Removing the Sensor
PCB .................................... 5-25
2000 2000 2000 2000 CANON iR1200/1300 Series REV. 0 AUG. 2002