NOTES:
Cx40 Service Manual
Page 3 of 80
Contents
Chapter
Description
Page
1
Introduction
4
1.1
Models Covered By This Manual
4
2
Tools Required
5
3
How To Contact Technical Support
5
4
Safety
6
4.1
Safety Warnings
6
4.2
EMC Testing
6
5
Removing & Replacing Panels From Scanner
7
5.1
Removing The Left Hand Cover
7
5.2
Removing The Right Hand Cover
8
5.3
Opening Access Panel
9
5.4
Removing Top Lid Cover
11
5.5
Removing Paper Guide Assembly
15
5.5.1
Replacing Paper Guide Assembly
16
6
Replacing Boards And Components
20
6.1
Replacing Control Panel Or Display Board
20
6.2
Replacing Scan Glass Or CIS
26
6.3
Removing Combined Main Board
36
6.3.1
Inserting Combined Main Board
37
6.4
Removing PSU From Scanner
40
6.4.1
Inserting PSU
43
6.5
Replacing The Main Timing Belt
47
6.6
Replacing Paper Hold Down Roller
49
6.7
Replacing Pinch Roller Assembly
54
6.8
Replacing Motor
60
6.9
Replacing Drive Rollers and Paper Sensor Cables
63
7.0
Replacing Paper Sensors
75
8
Fault Analysis
79