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All in One Printer
CD 1018
Utax CD 1018 User Manual
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2GM
2-3-17
2-3-3 P
ower suppl
y PWB
The power supply PWB pro
vides the AC po
wer input and DC pow
er and outputs.
The high v
oltage bias generator circuit is
mounted on a separate PWB
.
A simplified schematic diagram is sho
wn below
.
Figure 2-3-9 P
ower suppl
y PWB circuit bloc
k diagram
FET
(Q1)
Switching/
Over
current
detection
circuit
Power
switch
Current
fuse
Noise
filter
circuit
T
ransformer
(T1)
24 V DC
rectifier/
smooth-
ing circuit
24 V DC
shutoff
circuit
Over voltage
detection
circuit
Photo-
coupler
(PC1)
Photo-
T
riac
(PC2)
T
riac
(TRC1)
Heater
lamp
AC
input
5 V DC
rectifier/
smooth-
ing circuit
Thermistor
Cooling fan
+24V1
+24V1
THERM
+24V2
HEA
TN
EXITN
PGND, SGND
+5 V
FA
N
SLEEPN
Thermal
cutout
T
ransistor
(Q8)
ZCROSS
Photo-
coupler
(PC3)
(SW1)
(F1)
Exit
sensor
Zero cross signal
detection circuit
Power supply unit
184
186
Table of Contents
Table of Contents
8
Default Chapter
1
Service Manual
1
Installation Precautions
5
Handling Precautions
8
Troubleshooting
8
Upgrading the Firmware
10
Specifications
12
Names of Parts
14
Main Body
14
Operation Panel
15
Drum
16
Installation Environment
16
Installation
17
Unpacking and Installation
17
Installation Procedure
17
Connecting the Cable
32
Connecting the Network Cable
32
Connecting the Printer Cable
33
Installing the Document Processor (Option)
34
Installing the Expanding Memory (Option)
37
Installing the Fax System (Option)
38
Maintenance Mode
41
Executing a Maintenance Item
41
Maintenance Modes
42
Contents of Maintenance Mode Items
43
U051 Adjusting the Amount of Slack in the Paper
46
U060 Adjusting the Scanner Input Properties
46
U063 Adjusting the Shading Position
47
U065 Adjusting the Scanner Magnification
47
U066 Adjusting the Leading Edge Registration for Scanning an Original on the
47
U067 Adjusting the Center Line for Scanning an Original on the Contact Glass
47
U071 Adjusting the DP Scanning Timing
47
U074 Adjusting the DP Input Light Luminosity
48
U087 Turning the DP Scanning Position Adjust Mode On/Off
48
U089 Outputting a MIP
49
U101 Setting the Other High Voltages
50
U144 Setting Toner Loading Operation
51
U157 Checking/Clearing the Developing Drive Time
51
U161 Setting the Fusing Control Temperature
52
Primary Stabilization Fusing Temperature
52
System Settings
58
Executing a System Setting Item
58
System Settings
59
Service Settings
61
Executing a Service Setting Item
61
Contents of Service Setting Items
62
Secondary Stabilization Fusing Temperature
64
Number of Sheets for Fusing Control
64
Paper Misfeed Detection
69
Paper Misfeed Indication
69
Paper Misfeed Detection Conditions
70
Paper Misfeeds
72
Self-Diagnosis
76
Self-Diagnostic Codes
76
Self-Diagnostic Function
76
Image Formation Problems
83
A Black Line Appears Laterally
83
A Black Line Appears Longitudinally
83
A White Line Appears Longitudinally
83
Background Is Visible
83
Black Dots Appear on the Image
83
Image Is too Light
83
No Image Appears (Entirely Black)
83
No Image Appears (Entirely White)
83
One Side of the Print Image Is Darker than the Other
83
Electrical Problems
90
Cooling Fan Does Not Operate
90
The Feed Clutch Does Not Operate
90
The Scanner Motor Does Not Operate
90
The Exposure Lamp Does Not Turn off
91
The Heater Lamp Does Not Turn off
91
The Heater Lamp Does Not Turn on
91
The MP Feed Clutch Does Not Operate
91
Main Charging Is Not Performed
92
Others
92
When the Power Switch Is Turned on
92
Mechanical Problems
93
Abnormal Noise Is Heard
93
Multiple Sheets of Paper Are Fed at One Time
93
No Primary Paper Feed
93
No Secondary Paper Feed
93
Paper Jams
93
Skewed Paper Feed
93
The Scanner Does Not Travel
93
Precautions for Assembly and Disassembly
94
Precautions
94
Removing the Process Unit
95
Removing the Principal Outer Covers
96
Removing the Front Top Cover/Face-Down Output Tray
96
Removing the Left Cover
97
Removing the Right Cover
97
Removing the Feed Roller
98
Removing the MP Feed Roller
99
Removing the Transfer Roller
101
Removing the Primary Circuit Pwbs
102
Removing the Engine PWB
102
Removing the Main PWB
103
Removing the Power Supply PWB and High Voltage PWB
105
Removing the Bias PWB
106
Removing the Main Motor and Drive Unit
107
Removing and Splitting the Fuser Unit
111
Removing the Separation Craws
113
Removing the Heater Lamp
114
Removing the Heat Roller
115
Removing the Thermistor
117
Removing the Thermal Cutout
118
Removing the Press Roller
119
Removing the Laser Scanner Unit and the Eraser Lamp
122
Removing the ISU Unit
125
Removing the Exposure Lamp
127
Removing the Scanner Mirror a
129
Removing the Scanner Motor
130
Removing the Main Charger Unit
133
Adjustment the Maintenance Mode
134
Adjusting the Leading Edge Registration of Image Printing
134
Adjusting the Center Line of Image Printing
135
Adjusting the Amount of Slack in the Paper
136
Adjusting Magnification of the Scanner in the Main Scanning Direction
137
Adjusting Magnification of the Scanner in the Auxiliary Scanning Direction
138
Adjusting the Scanner Leading Edge Registration
139
Adjusting the Scanner Center Line
140
Adjusting the Margins for Scanning an Original on the Contact Glass
141
Adjusting the DP Magnification
142
Adjusting the DP Leading Edge Registration
143
Adjusting the DP Trailing Edge Registration
144
Adjusting the DP Center Line
145
Adjusting the Margins for Scanning the Original from the DP
146
Upgrading the Firmware on the Main PWB
147
Paper Feeding System
149
Paper Feed Control
150
Paper Feeding Mechanism
151
Original Scanning System
152
ISU Unit
154
Electrophotographic Cycle
155
Electrophotographic System
155
Process Unit Mechanism
156
Main Charging
157
Photo Conductive Drum
157
Charging the Drum
158
Exposure
159
Laser Scanner Unit
160
Drum Surface Potential
161
Development
162
Transfer
163
Fusing
164
Fuser Unit Mechanism
165
Cleaning
166
Electrical Parts Layout
167
Main Unit
167
Scanner Unit
168
Main PWB
169
Engine PWB
175
Eraser Lamp Control Circuit
177
Heater Lamp Control Circuit
178
Polygon Motor Control Circuit
181
Power Supply PWB
185
Bias PWB
187
High Voltage PWB
188
Interlock Switch
189
Operation Pwb
192
Scanner Pwb
194
Other manuals for Utax CD 1018
Instruction Handbook
86 pages
4
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Utax CD 1018 Specifications
General
Brand
Utax
Model
CD 1018
Category
All in One Printer
Language
English
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