COPYRIGHT © 2002 CANON INC.
2000 2000 2000 2000
CANON iR1200/1300 Series REV. 0 AUG. 2002
viii
CONTENTS
1 Points to Note When Disassembling/
Assembling the Machine .................... 5-1
2 Disassembly ........................................ 5-4
Externals/Auxiliary System ....... 5-4
External Covers ................... 5-4
Removing the Left Cover/
Rear Cover ...................... 5-5
Removing the Right
Cover .............................. 5-5
Removing the Toner
Supply Cover .................. 5-6
Removing the Front
Cover .............................. 5-7
Removing the Delivery
Cover .............................. 5-7
Removing the Delivery
Upper Cover/Delivery
Rear Cover ...................... 5-8
Removing the Cartridge
Cover .............................. 5-8
Removing the Upper
Cover .............................. 5-9
Removing the Right
Door .............................. 5-11
Removing the Control
Panel .................................. 5-11
Removing the Copyboard
Glass .................................. 5-13
Removing the Main Motor
Unit .................................... 5-14
Remove the Fan ................. 5-17
Removing the Reader Unit
Slide Detecting Switch ...... 5-19
Removing the Toner Supply
Cover Switch ..................... 5-20
Removing the Humidity
Sensor ................................ 5-20
Removing the Toner Bottle
Sensor ................................ 5-21
2.1.10 Removing the Waste Toner
Full Sensor ......................... 5-21
PCBs ........................................ 5-22
Removing the Image
Processor PCB ................... 5-22
Removing the Analog
Processor PCB ................... 5-23
Removing the Sensor
PCB .................................... 5-25
Detecting a Fault in the
Fixing Assembly ................ 4-29
7 Power Supply System ....................... 4-31
Low Voltage Circuit ................. 4-31
Low Voltage Power
Supply Circuit .................... 4-31
Protective Functions .......... 4-33
High-Voltage Power
Supply Circuit .......................... 4-33
Controlling the ESS
Mechanism ............................... 4-33
Outline ............................... 4-33
Operation ........................... 4-33
8 Others ................................................ 4-34
Fan ........................................... 4-34
Outline ............................... 4-34
Back-Up Batteries .................... 4-35
Back-Up Function ............. 4-35
Outline .......................... 4-35
Lithium Battery (BAT1) ... 4-35
Vanadium Lithium Second-
ary Battery (BAT2) ....... 4-37
Back-Up Data .................... 4-38
Types of Data ................ 4-38
Printing the Backup
Data List ....................... 4-40
functions) .......................................... 4-41
9.1
Outline ..................................... 4-41
Picking Up and Moving
Originals ................................... 4-42
Outline ............................... 4-42
Moving Down the Original
Pickup Roller and Moving Up
the Original Stopper .......... 4-43
Detecting an Original Jam ....... 4-44