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Samsung ML-451 Series User Manual
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3.
Disassembly
and
Reassembly
7.
Remove
4
screws
securing
the
top
cover
.
8.
Lift
up
and
release
the
top
cover
.
9.
Remove
the
main
board
cover
.
10.
Remove
4
screws
securing
the
right
cover
.
F
r
o
n
t
R
e
a
r
1
1.
Remove
the
rear
dummy
cover
.
12.
Release
the
right
cover
.
3-8
Copyright©
1995-2016
SAMSUNG.
All
rights
reserved.
79
81
Table of Contents
Table of Contents
2
Precautions
7
Safety Warning
7
Caution for Safety
8
Toxic Material
8
Electric Shock and Fire Safety Precautions
8
Handling Precautions
9
Assembly and Disassembly Precautions
9
Disregarding this Warning May Cause Bodily Injury
10
ESD Precautions
11
Product Specifications and Description
12
Specifications
12
Product Overview
12
Specifcations
13
General Specifications
13
Print Specifications
14
Paper Handling Specifications
14
Software and Interface Specifications
17
Network Specifications
18
Consumables
19
Maintenance Parts
19
Finisher and Mail Box Specifications
21
Model Comparison Table
23
Product Description
24
Front View
24
Rear View
25
Paper Path
26
System Layout
27
Feeding System
28
Feeding System Overview
28
Main Components and Functions
29
Paper Tray
31
Pick-Up Unit
32
Registration Unit
33
Multi-Purpose Feeder Unit
34
Image Creation
35
Printing Process Overview
35
Imaging Unit
36
Fuser Unit
38
Fuser Unit Overview
38
Fuser Unit Main Components
39
Fuser Drive
39
Temperature Contorl
40
Laser Scanning Unit
41
Laser Scanning Unit Overview
41
Laser Scanning Optical Path
42
Drive System
43
Drive Motors
43
Main Drive Unit(OPC, DEVE, Toner, Fuser, Regi.)
45
Exit Drive Unit
46
Tray Lifting Drive Unit
47
Hardware Configuration
48
Main Controller
52
OPE Controller
56
SMPS and FDB Board
59
HVPS Board
62
Eraser PBA
63
Cover-Open PBA
63
Joint PBA
64
Deve Crum Joint PBA
64
Toner Crum Joint PBA
65
Toner Crum PBA
65
Deve Crum PBA
65
Finisher
66
Finisher System Configuration
66
Layout and Paper Path
67
Electrical Parts Location
68
Finisher Main Board
69
Mail Box
70
Mail Box Layout
70
Electrical Parts Location
71
Mail Box Main Board
72
Disassembly and Reassembly
73
Precautions When Replacing Parts
73
Precautions When Assembling and Disassembling
73
Preautions When Handling PBA
73
Releasing Plastic Latches
74
Screws Used in the Printer
75
Replacing the Maintenance Parts
77
Fuser Unit
77
Pick up / Forward Roller
78
Transfer Roller
78
Replacing the Main Svc Parts
79
Cover
79
Main Board
81
Joint PBA
81
SMPS and FDB(Fuser Drive Board)
82
OPC and Main Motor
83
Main Drive Unit
83
Duplex and Pick up Clutch
84
HVPS Board
84
Exit Unit
85
LSU (Laser Scanning Unit)
86
Eraser Lamp PBA
86
Cover Open PBA
87
Disassembling Pick up Assy
87
Left Cover
87
Cassette Guide L
88
Right Cover
88
Cover-SMPS and SMPS
90
Drive Assy
90
Pick up and Duplex Clutch
90
Screw
91
Bracket Cross Bar and Pick up Harness
91
Pick up Assy
92
Finisher
93
Cover
93
Stapler Ass'y
94
Safety Sensor
94
Tamper Ass'y
95
Finisher Main Board
97
Diverter Assy
97
Stacker Motor
98
Mail Box
99
Alignment and Troubleshooting
102
Alignment and Adjustment
102
Control Panel
102
Understanding the Status LED
104
JAM Removal
105
In Tray1
105
In Optional Tray
106
In the Multi-Purpose Tray
107
Inside the Machine
108
In the Exit Area
111
Paper Jam in Front of the Finisher
112
Paper Jam Inside the Finisher
113
Paper Jam at the Exit of the Finisher
114
Paper Jam in Front of the Multi-Bin Mailbox
114
Paper Jam Inside the Multi-Bin Mailbox
115
Paper Jam at the Exit of the Multi-Bin Mailbox
116
Useful Menu Items for Service
117
Periodic Defective Image
119
Useful Management Tools
120
Using Samsung Easy Printer Manager (Windows Only)
120
Using Samsung Printer Status (Windows Only)
121
Using Smart Panel (Macintosh and Linux Only)
122
Updating Firmware
124
Update the Firmware by Using the USB Port
124
Update the Firmware by Using the Network
125
Tech Mode
127
Entering the Tech Mode
127
Tech Mode Menu
128
Tech Mode Menu Description
130
Truobleshooting
137
Procedure of Checking the Symptoms
137
Basic Check List
138
Error Code and Troubleshooting
139
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Samsung ML-451 Series Specifications
General
Brand
Samsung
Model
ML-451 Series
Category
Printer
Language
English
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