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Ricoh SP204SFNW Service Manual Page 111
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Table of contents
TROUBLESHOOTING
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Sensors
M145/M146/M
147/M148/M149/
M150/M151
4-
50
SM
4.6
SENSORS
4.6.1
REGISTRATI
ON
SENSOR
Preparation
Remove:
AIO
Feed
T
ray
1.
Raise
the
mac
hine
so
you
can
see
the
bott
om.
2.
Bottom
Cover
[A]
(
x
4).
3.
Registration
S
ensor
[A]
(
x
1,
x
3)
1
2
...
106
107
108
109
110
111
112
113
114
115
116
...
307
308
M145/M146/M147/M148/
1
M149/M150/M151
1
SERVICE MANUAL
1
WARNING
3
DOCUMENTATION HISTORY
4
TABLE OF CONTENTS
5
READ THIS FIRST
11
Timing belt
12
Machine Names
13
AIO (All In One) Cartridge
14
Key Presses
15
RoHS Compliance
15
Warnings, Cautions, Notes
16
General Safety Instructions
16
Special Tools
18
During Maintenance
18
Organic Cleaners
19
Power Plug and Power Cord
19
Disposal of Used Items
20
Accidental Physical Exposure
21
Handling and Storing Toner
21
Toner Disposal
22
Health Safety Conditions
22
Laser Safety
23
Trademarks
24
1. PRODUCT INFORMATION
26
1.2 NEW PRODUCT INFORMATION
27
Product
28
Information
28
Common AIO
29
1.2.2 FEATURE SUMMARY
30
Duplex Printing
31
Important Points to Remember
31
1.2.3 ABOUT AIO UNITS
32
Toner-end Alert
33
AIO Unit Specifications
33
1.2.4 GENERAL CONFIGURATION
35
Configuration
37
1.2.5 OPERATION PANELS
39
Operation Panel
41
M191 Operation Panel
42
Alert LEDs
42
1.2.6 OVERVIEW
43
Drive Layout
45
Image Writing
46
2. INSTALLATION
50
2.1.3 POWER REQUIREMENT
51
2.1.4 MACHINE LEVEL
51
2.1.5 SPACE REQUIREMENTS
52
2.1.6 MOVING THE MACHINE
53
2.1.8 IMPORTANT FEATURES
54
3. PREVENTIVE MAINTENANCE
58
3.1.2 ROUTINE CLEANING
59
4.1 BEFORE YOU BEGIN
62
4.2 BASIC PROCEDURES
65
Front Cover
66
Right Cover
67
Left Cover
68
Top Cover
69
FLATBED UNIT
70
Rear Cover
74
Left Hinge
74
Flatbed Scanner Unit
77
Inner Cover
78
Original Feed Tray
79
ADF/Flatbed Unit
86
Basic Procedures
91
4.3 OPERATION PANELS
94
Operation Panels
97
5. Operation Panel
97
4.4 LASER UNIT
98
Laser Unit
99
2. Laser Unit
99
Replacement
100
4.5 PAPER PASS
102
4.5.1 PAPER FEED ROLLER
103
4.5.2 FRICTION PAD
105
Paper Pass
107
5. Paper Transport Roller
107
4.5.4 IMAGE TRANSFER ROLLER
108
4.5.5 PAPER EXIT ROLLER
110
4.6 SENSORS
111
4.6.2 PAPER END SENSOR
112
4.6.3 BYPASS SET SENSOR
112
4.6.4 PAPER EXIT SENSOR
113
4.7 MAIN MOTOR
114
Main Motor
115
3. Main Motor (
115
4.8 CLUTCH
116
4.9 SWITCHES
117
4.9.2 INTERLOCK SWITCH
119
4.10 FUSING UNIT
120
4.10.2 FUSING EXIT ROLLER
122
4.10.3 PRESSURE ROLLER
122
4.10.5 THERMOSTAT
124
4.10.6 THERMISTOR
125
4.10.7 GROUND PLATE
125
4.11 PCB
126
Re-installation
127
M169, M191 MAIN BOARD
129
FAX BOARD
133
FAX SPEAKER
135
4.11.7 PSU
136
4.11.8 H.V.P.P
138
4.11.9 WI-FI MODULE
140
1. Open Left Cover
141
4.12 SCANNER UNIT
143
M148, M151, M169, M191)
143
ADF")
144
4.14 REFILLING THE AIO
145
4.14.2 WHAT YOU NEED
147
4.14.3 REFILL PROCEDURE
148
SYSTEM MAINTENANCE REFERENCE
154
5.1 FIRMWARE UPDATE
156
Maintenance
158
Reference
158
5.2 UTILITIES
162
Initial Screen
164
Status Tab Change Button
166
Job Log Tab
167
User Tool Tab
169
IP Address Setting dialog
170
System Tab
171
Printer Tab
173
Copy Tab
174
Fax Tab
176
Scanner Tab
177
Wi-FI Tab
179
What Is Service Mode?
186
Service Mode Screen
186
Utilities
187
System Settings
195
Printer Features Settings
201
Copier Features Settings
202
Scanner Features Settings
211
M143, M151, M169)
215
M150, M151, M169)
216
REVISION HISTORY
226
6. TROUBLESHOOTING
228
When an Error Occurs
229
Troubleshooting
230
6.1.3 SC TABLES
231
SC100: Scanning
232
SC200: Scanning
233
SC400: Around the Drum
235
SC500: Paper Feed, Transport
235
SC600: Communication
240
6.1.4 ERROR CODES
241
Supplement
249
Service Calls
254
6.2 IMAGE PROBLEMS
255
Image Problems
258
6.3 COMMON PROBLEMS
259
7. ENERGY SAVING
266
Recommendations
267
7.2 PAPER SAVE
268
Total Counter
269
Energy Saving
270
APPENDICES
273
1. APPENDIX: SPECIFICATIONS
277
Appendix:
279
Specifications
279
M151, M169)
287
1.1.7 REPORTS
298
Basic Format
299
Configuration Page
299
Test Page
300
M168, M150, M151, M169)
304
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