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Samsung ML-2251N - Page 122
122 pages
Manual
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©
Samsung Electronics Co.,Ltd. May. 2005
Printed in Korea.
VERSION NO. : 1.01 CODE : JC-0123D
This
service
manual
is
also
provided
on
the
web,
the ITSELF
system
f Samsung
Electronics
Co., Ltd.
http://itself.sec.samsung.co.kr
ELECTRONICS
121
Table of Contents
Main Page
Table of Contents
1
Precautions
2
Caution for Safety
3
Toxic Material
3
Electric Shock and Fire Safety Precautions
3
Handling Precautions
4
Disregarding this Warning May Cause Bodily Injury
5
Esd Precautions
6
Reference Information
7
Acronyms and Abbreviations
8
Select a Location for the Printer
10
Sample Tests Patterns
11
A4 Iso 19752 Standard Pattern
13
Wireless Lan
14
Specifications
15
Controller Specification
17
Software Specifications
18
Consumable Specifications
18
Option Specifications
19
Other Specifications
19
Summary of Product
21
Rear View
22
Control Panel
23
System Construction
25
Paper Feed
27
Thermistor and Thermostat
28
Heat Roller
28
Pressure Roller
28
Safety Features
28
Toner Cartridge
29
Flash Memory
31
Cover Open Sensing
32
Paper Exit Sensing
32
Paper Feeding
32
Sensor Input Circuit
32
Disassembly and Reassembly
39
Front Cover
40
Rear Cover
42
Top Cover
43
Middle Cover
44
Exit Roller
45
Alignment and Adjustments
59
Clearing Paper Jams
65
Tips for Avoiding Paper Jams
67
Sample Pattern
68
Printing a Demo Page
68
Printing a Cleaning Sheet
70
Consumables and Replacement Parts
71
Periodic Defective Image
72
Troubleshooting
73
Horizontal Black Band
74
Light Image
75
Uneven Density
76
Wrong Print Position
80
Paper Rolled in the Fuser
82
Paper Rolled on the Opc Drum
83
Paper Empty
85
Paper Empty Without Indication
86
Cover Open
86
Defective Motor Operation
88
Abnormal Printing
96
Spool Error
97
Exploded Views and Parts List
98
Block Diagram
105
Connection Diagram
106
Schematic Diagram
108
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