Canon SmartBase 1270D Service Manual page 10

CONTENTS
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
8.2.1.2 Lithium Battery
(BAT1) .......................... 4-35
CHAPTER 5 MECHANICAL SYSTEM
1 Points to Note When Disassembling/As-
sembling the Machine ......................... 5-1
2 Disassembly ........................................ 5-3
2.1 Externals/Auxiliary System ....... 5-3
2.1.1 External Covers ................... 5-3
2.1.1.1 Removing the Left Cover/
Rear Cover ........................... 5-4
2.1.1.2 Removing the Right
Cover .............................. 5-4
2.1.1.3 Removing the Front
Cover .............................. 5-5
2.1.1.4 Removing the Delivery
Cover .............................. 5-5
2.1.1.5 Removing the Delivery
Upper Cover/Delivery
Rear Cover ...................... 5-6
2.1.1.6 Removing the Cartridge
Cover .............................. 5-6
2.1.1.7 Removing the Upper
Cover .............................. 5-7
2.1.1.8 Removing the Right
Door ................................ 5-8
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COPYRIGHT © 2002 CANON INC.
8.2.1.3 Vanadium Lithium
8.2.2
8.2.2.1 Types of Data ................ 4-38
8.2.2.2 Printing the Backup Data
9 ADF (if equipped with ADF
functions) .......................................... 4-41
9.1 Outline ..................................... 4-41
9.2 Picking Up and Moving
9.2.1
9.2.2
9.3 Detecting an Original Jam ....... 4-44
9.3.1
9.3.2
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.2 PCBs ........................................ 5-17
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2000 2000 2000 2000 CANON SmartBase PC1210D/1230D/1270D REV. 1 MAR. 2002
Secondary Battery
(BAT2) .......................... 4-37
Back-Up Data .................... 4-38
List ................................ 4-40
Originals ................................... 4-42
Outline ............................... 4-42
Moving Down the Original
Pickup Roller and Moving Up
the Original Stopper .......... 4-43
Outline ............................... 4-44
Types of Jams .................... 4-44
Removing the Control
Panel .................................... 5-8
Removing the Copyboard
Glass .................................. 5-10
Removing the Main Motor
Unit .................................... 5-10
Remove the Fan ................. 5-14
Removing the Reader Unit
Slide Detecting Switch ...... 5-16
Removing the Image
Processor PCB ................... 5-17
Removing the Analog
Processor PCB ................... 5-17
Removing the Sensor
PCB .................................... 5-20
Removing the DC Controller
PCB/Power Supply PCB ... 5-21
Removing the Printer
Controller PCB .................. 5-25