Ricoh A220 Manuals

Manuals and User Guides for Ricoh A220. We have 3 Ricoh A220 manuals available for free PDF download: Service Manual

Ricoh A220 Service Manual

Ricoh A220 Service Manual (473 pages)

Brand: Ricoh | Category: Industrial Equipment | Size: 7.61 MB

Table of Contents

Overall Machine Information
3
Specification
4
System Overview
9
Electrical Component Description
10
Detailed Section Descriptions
11
Paper Feed
13
Paper Lift Mechanism
14
Installation
16
Accessory Check
17
Copier Installation Procedure
18
Service Tables
19
Service Remarks
20
Service Program Mode Table
21
Replacements and Adjustments
27
Cleaning Blade Replacement
28
Pick-Off Pawl Replacement
29
Fusing Thermistor Replacement
31
Fusing Pressure Adjustment
32
Prevention of Physical Injury
39
Health Safety Conditions
39
Observance of Electrical Safety Standards
39
Important Safety Notices
39
Safety and Ecological Notes for Disposal
40
Specification
42
Machine Configuration
47
Copy Process Around the Drum
51
Mechanical Component Layout
53
Drive Layout
55
Paper Path
56
Standard Copying
56
Electrical Component Description
58
Process Control
67
Image Density Control
78
Opc Drum Characteristics
85
Drum Charge
86
Scanner Drive
98
Automatic Image Density Control System (Ads)
105
Original Size Detection in Platen Mode
109
Drive Mechanism
113
Development Bias
115
Toner Supply
120
Image Transfer
125
Image Transfer and Paper Separation Mechanism
127
Transfer Belt Unit Lift Mechanism
129
Paper Transportation and Belt Drive Mechanism
130
Transfer Belt Cleaning Mechanism
131
Toner Collection Mechanism
132
Paper Feed
133
Frr Feed System
134
Slip Clutch Mechanism
136
Separation Roller Release Mechanism
139
Tandem Feed Tray
145
Paper Size Detection
149
Vertical Transport Mechanism
150
By-Pass Feed Table
155
Paper Registration
158
Registration Drive Mechanism
159
Image Fusing
161
Fusing Entrance Guide
162
Fusing Lamp Control
164
Duplex Entrance to Duplex Tray
169
Duplex Stacking
170
Installation
180
Installation Requirements
181
Machine Level
181
Minimum Space Requirements
182
Power Requirements
183
Copier Installation
184
Accessory Check
184
Paper Size Change
196
Image Density Adjustment
201
Accessory Check
203
Installation Procedure
204
Service Remarks
232
Handling the Drum
232
Charge Corona
233
Erase Lamp
234
Development Unit
235
Cleaning Section
235
Pre-Transfer Lamp
236
Service Program Mode Operation
237
Counter Clear
267
Pm Counter Clear
268
Memory Clear
270
User Tools
282
Preventive Maintenance Schedule
285
Explanation of Regular Pm
293
Regular Pm Procedure
297
Front Side
301
Rear Side
302
Right Side
305
Left Side
307
Operation Panel
308
Upper Side
309
Exposure Glass Removal
310
Exposure Lamp Replacement
311
Optics Thermoswitch Replacement
313
Development and Toner Supply
339
Development Unit Removal
339
Developer Replacement
341
Toner Density Sensor Replacement
346
Quenching Lamp Replacement
349
Cleaning Blade Replacement
353
Cleaning Brush Replacement
354
Ozone Filter Replacement
357
Transfer Belt Unit
358
Transfer Belt Replacement
360
Paper Feed
363
Paper Tray Unit Removal
363
Paper Tray Removal
364
Tandem Side Fence Motor Removal
369
Paper Feed Clutch Removal
373
By-Pass Feed Table Removal
376
Registration Clutch Removal
383
Registration Sensor Removal
385
Copier Feed Unit Removal
386
Fusing Unit Removal
393
Fusing Thermofuse Replacement
395
Fusing Lamp Replacement
396
Hot Roller Replacement
397
Fusing Stripper Pawl Replacement
400
Pressure Roller Cleaning Roller Replacement
405
Duplex Unit
406
Feed Roller Replacement
406
Duplex Unit Removal
410
Copy Quality Adjustment
417
Troubleshooting
425
Service Call Conditions
426
Transfer Current
437
Paper Feed
438
System Control
443
Electrical Component Defects
450

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Ricoh A220 Service Manual

Ricoh A220 Service Manual (325 pages)

Brand: Ricoh | Category: All in One Printer | Size: 6 MB

Table of Contents

Table of Contents
4
Overall Machine Information
18
Specifications
18
Machine Configuration
22
System Components
22
Installable Option Table
24
Copier Options
24
Fax and Printer Options
24
Scanner Option
24
Paper Path
25
Mechanical Component Layout
26
Electrical Component Descriptions
28
Drive Layout
31
Copy Process
32
Overview
32
Board Structure
34
Overview
34
Description
35
Detailed Section Descriptions
36
Scanning
36
Overview
36
Scanner Drive
37
Original Size Detection in Platen Mode
38
Image Processing
40
Overview
40
Sbu (Sensor Board Unit)
41
Auto Image Density
42
In the SBU
42
In the IPU
42
Service Mode" Original Types
42
Ipu (Image Processing Unit)
43
Overview
43
Image Processing Modes
44
Image Processing Path
46
SP Modes for each Image Processing Step
47
Auto Shading
53
White Line Erase Compensation
53
Black Line Erase Compensation
53
Scanner Gamma
54
Main Scan Magnification/Reduction
55
Mirroring for ADF Mode
55
Filtering
56
ID Gamma (Γ) Correction
60
Gradation Processing
60
Line Width Correction
62
Memory Controller and Enhanced Memory Board (Emb)
63
Video Control Unit (Vcu)
64
Fine Character and Image (FCI)
64
Printer Gamma Correction
64
Laser Exposure
65
Overview
65
Auto Power Control (Apc)
66
Ld Safety Switch
67
Photoconductor Unit (Pcu)
68
Overview
68
Drive
69
New Pcu Detection
70
Drum Charge
71
Overview
71
Charge Roller Voltage Correction
72
Correction for Environmental Conditions
72
ID Sensor Pattern Production Timing
73
Drum Charge Roller Cleaning
74
Development
75
Overview
75
Drive
76
Developer Mixing
77
Development Bias
78
Toner Supply
79
Toner Bottle Replenishment Mechanism
79
Toner Supply Mechanism
80
Toner Density Control
81
Overview
81
Toner Density Sensor Initial Setting
83
Toner Density Measurement
83
Vsp/Vsg Detection
83
Toner Supply Reference Voltage (Vref) Determination
83
Toner Supply Determination
83
Toner Supply Motor on Time Determinations
84
Toner Supply in Abnormal Sensor Conditions
85
ID Sensor
85
TD Sensor
85
Toner Near End/End Detection and Recovery
85
Toner Near End Detection
85
Toner Near End Recovery
86
Toner End Detection
86
Toner End Recovery
86
Drum Cleaning and Toner Recycling
87
Drum Cleaning
87
Toner Recycling
88
Paper Feed
89
Overview
89
Paper Feed Drive Mechanism
90
Paper Feed and Separation Mechanism
91
Paper Lift Mechanism
92
Paper End Detection
93
Paper Height Detection
94
Feed Pressure Adjustment for Paper Size
95
Overview
95
Paper Size Thresholds
95
Feed Pressure Adjustment
96
Effect of the Amount of Remaining Paper
96
Paper Size Detection
98
Special Paper Setting
99
Side and End Fences
100
Side Fences
100
End Fence
100
Paper Registration
101
Image Transfer and Paper Separation
102
Overview
102
Image Transfer Current Timing
103
Transfer Roller Cleaning
104
Paper Separation Mechanism
104
Image Fusing and Paper Exit
105
Overview
105
Fusing Drive and Release Mechanism
106
Fusing Entrance Guide Shift Mechanism
107
Pressure Roller
108
Cleaning Mechanism
108
Fusing Temperature Control
109
Temperature Control
109
Fusing Lamp Control
110
Overheat Protection
111
Paper Exit
111
Energy Saver Modes
112
Overview
112
Energy Saver Mode
113
Entering the Energy Saver Mode
113
What Happens in Energy Saver Mode
113
Return to Stand-By Mode
113
Low Power Mode
114
Entering the Low Power Mode
114
What Happens in Low Power Mode
114
Return to Stand-By Mode
114
Auto off Mode
115
Entering Auto off Mode
115
What Happens in Auto off Mode
115
Returning to Stand-By Mode
115
Disabling Auto off Mode
115
Night Mode
116
Entering Night Stand-By and Night Modes
116
What Happens in Night Stand-By and Night Modes
116
Returning to Stand-By Mode
117
Installation Procedure
118
Installation Requirements
118
Environment
118
Machine Level
118
Minimum Space Requirements
119
Power Requirements
120
Copier Installation
121
Power Sockets for Peripherals
121
Installation Flow Chart
122
Accessory Check
123
Installation Procedure
124
Paper Tray Unit Installation
128
Accessory Check
128
Lct Installation
131
Accessory Check
131
Auto Reverse Document Feeder Installation
134
Accessory Check
134
Installation Procedure
134
Interchange Unit Installation
137
Component Check
137
Installation Procedure
138
1-Bin Tray Unit Installation
140
Component Check
140
Installation Procedure
140
Shift Tray
143
Component Check
143
Installation Procedure
143
By-Pass Feed Unit Installation
145
Components Check
145
Installation Procedure
145
Duplex Unit Installation
147
Accessory Check
147
Installation Procedure
148
Bridge Unit Installation
150
Accessory Check
150
Installation Procedure
150
1,000-Sheet Finisher Installation
152
Copier Feature Expander Installation
155
Platen Cover Installation
156
Key Counter Installation
157
Anti-Condensation Heater
159
Tray Heater
160
Tray Heater (Optional Paper Tray Unit)
162
Tray Heater (Optional Lct)
165
Service Tables
168
General Caution
168
Pcu (Photoconductor Unit)
168
Transfer Roller Unit
168
Scanner Unit
168
Laser Unit
169
Fusing Unit
169
Paper Feed
169
Others
169
Service Program Mode
170
Service Program Mode Operation
170
Service Program Access Procedure
170
Accessing Copy Mode from Within an SP Mode
171
How to Select the Program Number
171
To Input a Value or Setting for an SP Mode
171
Service Program Mode Tables
172
Test Pattern Printing (Sp4-417 and Sp5-902)
227
Input Check (Sp5-803)
228
Input Check Table
228
Output Check (Sp5-804)
233
Output Check Table
233
Copy Jam History Display (Sp7-903)
235
Smc Data Lists (Sp5-992)
236
Original Jam History Display (Sp7-905)
237
Memory All Clear (Sp5-801)
238
Using a Flash Memory Card
238
Without Using a Flash Memory Card
238
Program Upload/Download
239
Program Download (SP5-827)
239
Program Upload (SP5-826)
240
Nvram Data Download
241
NVRAM Data Download (SP5-825)
241
NVRAM Data Upload (SP5-824)
242
Aps and Platen/Df Cover Sensor Output Display
243
(Sp4-301)
243
Df Aps Sensor Output Display (Sp6-901)
244
Nip Band Width Measurement
245
Display Language (Sp5-808)
246
Serial Number Input (Sp5-811)
246
ID Sensor Error Analysis (Sp2-221)
247
User Tools
248
How to Enter and Exit User Tools
248
User Tools Table
248
System Setting Table
248
Copy Setting Table
249
Bicu
250
Iob
285

Ricoh A220 Service Manual

Ricoh A220 Service Manual (50 pages)

insert version

Brand: Ricoh | Category: Copier | Size: 0.72 MB

Table of Contents

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