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A183
Ricoh A183 Manuals
Manuals and User Guides for Ricoh A183. We have
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Ricoh A183 manuals available for free PDF download: Service Manual, Technical Bulletin
Ricoh A183 Service Manual (221 pages)
Brand:
Ricoh
| Category:
Copier
| Size: 3.11 MB
Table of Contents
Table of Contents
9
Overall Information
21
Specifications
23
Copy Process Around the Drum
26
Mechanical Component Layout
28
Electrical Component Descriptions
29
Detailed Descriptions
31
Drum
33
Opc Drum Characteristics
33
Drive Mechanism
34
Charge
35
Overview
35
Charge Corona Circuit
36
Optics
37
Overview
37
Scanner Drive
38
LENS and 4TH/5TH MIRROR DRIVE (A184 Copier Only)
39
Automatic Image Density Sensor
40
Exposure Lamp Voltage Control
41
Erase
44
Overview
44
Lead Edge Erase
45
SIDE ERASE (A184 Copier Only)
45
Trailing Edge Erase
45
Development
46
Overview
46
Drive Mechanism
47
Cross-Mixing
48
Development Bias for Image Density Control
49
Base Bias Voltage Factor in Manual Image Density Mode
49
Base Bias Voltage Factor in Automatic Image Density (ADS) Mode
50
Drum Residual Voltage
51
Development Bias Circuit
52
Toner Supply
53
Toner Supply Mechanism
53
Toner Density Detection
54
Toner Supply Control
55
Detect Supply Mode
55
Fixed Supply Mode
58
TD Sensor Check and Toner Supply Timing
58
Abnormal Condition in Toner Density Detection
58
Toner End Condition
59
Toner Near End
59
Toner End
59
Toner End Recovery
59
Image Transfer
60
Overall
60
Transfer Corona Circuit
61
Drum Cleaning
62
Overview
62
Toner Recycling Mechanism
63
Quenching
64
Paper Feed and Registration
65
Overview
65
Paper Feed Mechanism
66
Registration Mechanism
67
By-Pass Feed
68
Paper Feed and Misfeed Detection Timing
69
Image Fusing
70
Overview
70
Fusing Drive Mechanism
71
Fusing Lamp Control
72
Fusing Lamp Control Circuit
74
Overview
74
On/Off Control
75
Phase Control Mode
75
Overheat Protection
76
Installation Requirements
79
Environment
79
Machine Level
79
Minimum Space Requirements
80
Power Requirements
80
Installation
81
Accessory Check
81
Installation Procedure
82
Service Tables
87
Service Remarks
89
General Cautions
89
Imaging Unit
89
Optics
90
Transfer Corona
91
Fusing Unit
91
Paper Feed
91
Others
92
Program Modes
93
Basic Operation
93
Sp Mode
94
Sp Mode Quick Reference Table
96
Up Mode and Sp Mode Cross Reference Table
97
Service Program Mode Table
98
Clear All Memory Procedure
109
Service Tables
111
TEST POINTS (Main Control Board)
111
Variable Resistors
111
Preventive Maintenance
113
Preventive Maintenance Schedule
115
Pm Table
115
Regular Pm Procedure
117
Special Tools and Lubricants
119
Replacement Adjustment
121
Exterior
123
Operation Panel Position Change
123
Platen Cover Position Change
124
Exterior Cover/Exposure Glass Removal
125
Upper Unit Stopper Release
126
Optics
127
1St Scanner Removal
127
2Nd Mirror Replacement
128
3Rd Mirror Replacement
129
Lens and 4Th/5Th Mirror Position Adjustment
130
(A184 Model Only)
130
4Th Mirror Removal
131
5Th Mirror Removal
132
Lens and Mirror Motor Removal
133
Imaging Unit
134
Imaging Unit Removal
134
Charge Corona Unit Removal
135
Cleaning Blade Replacement
136
Paper Feed
137
Paper Feed Clutch Replacement
137
Paper Feed Roller Removal
138
Registraion Solenoid Replacement
139
Fusing
140
Fusing Unit Removal
140
Pressure Roller Replacement
141
Fusing Lamp Replacement
142
Fusing Exit Pawl Replacement
143
Hot Roller Replacement
144
Fusing Thermistor Replacement
145
Fusing Thermofuse Replacement
145
Others
146
Transfer Corona Unit Removal
146
Main Drive Unit Removal
147
Main Motor Removal
148
Toner Supply Clutch Removal
149
Erase Lamp Removal
150
Quenching Lamp Removal
151
Ozone Filter Replacement
152
Ac Drive/DC Power Supply Board/Transformer
153
Replacement
153
Main Control Board Replacement
154
Copy Quality Adjustment
155
Light Intensity Adjustment
156
Base Exposure Lamp Voltage Adjustment
156
SP Image Density Adjustment
157
Development Bias Voltage Adjustment
158
Base Bias Voltage Adjustment
158
SP Bias Settings
159
Toner Density Adjustment
159
Grid Voltage Adjustment
160
Drum Current Adjustment
161
Ads Adjustment
163
Vertical Magnification Adjustment
163
HORIZONTAL MAGNIFICATION ADJUSTMENT (A184 Only)
163
Registration Adjustment
164
Erase Margin Adjustment
164
Focus Adjustment
165
Troubleshooting
167
Copy Quality
169
Blank Copy (White Copy)
169
Dirty Background
171
Uneven Image Density
173
Vertical Black Bands
174
Vertical Black Lines
175
Vertical White Lines or Bands-1 (Dull or Blurred)
176
Vertical White Lines or Bands-2 (Thin, Distinct)
177
Horizontal Black/White Lines
178
Jitter
179
Black Spots on the Copy Image
180
Skewed (Optical) Copy Image
181
Toner Density too High
182
Toner Density too Low
184
Unfused Copy Image
186
Creasing Paper after Fusing
186
Paper Misfeed
187
Abnormal Condition in Toner Density Detection
188
Optics Overheat Protection
190
Service Call Conditions
191
Electrical Component Defects
197
Sensors
197
Switches
197
Blown Fuse Conditions
198
User Codes
198
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Ricoh A183 Technical Bulletin (19 pages)
Brand:
Ricoh
| Category:
Printer
| Size: 0.3 MB
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