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Samsung
Printer
ML-1645
Samsung ML-1645
130 pages
Manual
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Service Manual
Alignment &
T
roubleshooting
4-53
Samsung Electronics
12)
Ghost
(4)
The temperature of the fuser
is maintained high.
Disassemble the fuser and
remove the contaminated toner
particles on the roller and clean
the foreign matter between
Thermistor and Heat roller
.
( Caution : can be deformed)
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
Digital Printer
47.5 or 63.9mm
•
Description
Ghost
occurs
at
47.5mm(or
63.9mm)
intervals.
102
104
Table of Contents
Main Page
Default Chapter
3
Table of Contents
3
1 Precautions
6
Safety Warning
6
Safety Caution
7
Handling Precautions
8
ESD Precautions
9
2 Product Spec and Feature
10
Product Specifications
10
Product Overview
10
Specifications
10
Print Engine
11
Paper Handling
12
Model Comparison Table
14
Accessory List
14
System Overview
15
System Outline
15
Toner Cartridge
20
H/W Structure and Descriptions
21
Main Board
23
Fuser Ac Power Control
33
S/W Structure and Descriptions
34
Initial Product Installation
38
Replacing Toner
39
Loading Paper
41
Installing Printer Software
42
3 Disassembly and Reassembly
43
General Precautions on Disassembly
43
Front Cover
44
Main Cover
45
Fuser Unit
46
SMPS Board
47
Main PBA
47
Drive Unit
48
Lsu
49
HVPS Board
49
Transfer Roller
50
4 Alignment & Troubleshooting
51
Alignment and Adjustments
51
Control Panel
53
Understanding the Control Panel
54
Consumables and Replacement Parts
56
Periodic Defective Image
57
How to Use DCU
58
Paper Path
63
Clearing Paper Jams
64
In the Paper Feed Area
65
Around the Toner Cartridge
66
Tips for Avoiding Paper Jams
67
Solving Print Quality Problems
67
Troubleshooting
68
Basic Check List
69
Initial Inspection
70
Bad Discharge
71
Malfunction
78
Bad Software Environment
87
Bad Image
92
Exploded Views and Parts List
108
5 Exploded Views & Parts List
109
Main Assembly
109
Frame Assembly(ML-2240)
112
Frame Assembly(ML-1640)
114
Fuser Unit
116
Paper Path Unit
118
MP Tray Assembly (Only ML-2240)
120
6 System Diagram
122
Reference Information
123
Tool for Troubleshooting
123
Acronyms and Abbreviations
124
Selecting Printer Locations
126
Sample Tests Patterns
127
Parts Life Cycle Maintenance Table
128
Model Information
129
Understanding Material Code & Name
130
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