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Phaser 3120
Xerox Phaser 3120 User Manual
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4-21
TROUBLESHOO
TING
Service Manual
4.4.10 V
ertical Line Getting Curved
• Description
When printing, vertical line gets curved.
Check and Cause
Solution
1.
If the supply of +24v is unstable in the Main Control board
linking with LSU, check drive by DCU Mode : LSU Check
-05- LSU Motor on.
1. Replace LSU.
2. Replace the Main Control board.
40
42
Table of Contents
Table of Contents
1
Laser Printer
1
Precautions
2
Caution for Safety
3
Esd Precautions
5
Tool for Troubleshooting
6
Specifications
7
Environmental Range
8
Electrical Specification
8
Controller Specification
8
Paper Handling Specifications
9
Disassembly and Reassembly
11
Top Cover
12
Exit Roller
14
Main Pba
16
Transfer Roller
18
Feed Roller
19
Pick up Roller
20
Troubleshooting
21
Bad Image
26
Horizontal Black Band
27
Light Image
28
Uneven Density
29
Bad Discharge
33
Paper Empty
38
Cover Open
39
Defective Motor Operation
40
Redistributing Toner
42
Abnormal Printing
47
Spool Error
48
Exploded Views and Parts List
49
Exploded Views and Parts List
50
Block Diagram
60
Connection Diagram
62
Schematic Diagram
64
Smps Circuit Diagram
80
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Xerox Phaser 3120 Specifications
General
Brand
Xerox
Model
Phaser 3120
Category
Printer
Language
English
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