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Ricoh
All in One Printer
A-C2
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Ricoh A-C2 - Counter
345 pages
Manual
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USER PROGRAM MODE
26 January, 2001
5-72
Counter
In the User
/Tools Counter
display
, press Counter.
View the setti
ngs, press Pri
nt Counter Ex
it to return
to the User
Tools/Counter
display,
and then press Ex
it to retur
n to the copy w
indow.
B003SL07.WMF
245
247
Table of Contents
Main Page
Default Chapter
1
Service Manual
1
Important Safety Notices
2
Laser Safety
3
Table of Contents
4
Installation Procedure
18
Installation Requirements
18
Environment
19
Machine Level
19
Minimum Space Requirements
20
Power Requirements
21
Overall Machine Information
22
1 Bin Tray (B376)
22
Installation Flow Chart
22
Accessory Check
23
Main Machine Installation
24
Installation Procedure
24
Development Unit and PCU
25
Toner Bottle
28
Paper Trays
29
Initialize TD Sensor and Developer
31
Set Paper Size for Paper Trays
32
Electrical Total Counter
33
HDD Caution Decal (for Only NA Models)
33
Paper Tray Unit Installation
34
Accessory Check
34
Installation Procedure
35
1-Bin Tray Unit Installation
39
Accessory Check
39
Installation Procedure
40
Bridge Unit Installation
46
Accessory Check
46
Installation Procedure
47
1000-Sheet Finisher Installation
49
Accessory Check
49
Installation Procedure
50
Two-Tray Finisher Installation
53
Accessory Check
53
Installation Procedure
54
Punch Unit Installation
57
Accessory Check
57
Installation Procedure
58
Auto Reverse Document Feeder Installation
61
Accessory Check
61
Installation Procedure
62
Lct Installation
64
Accessory Check
64
Installation Procedure
65
Platen Cover Installation
67
Key Counter Installation
68
Anti-Condensation Heater
70
Tray Heater
72
Tray Heater (Optional Paper Tray Unit)
73
Preventive Maintenance Schedule
74
Pm Table
74
Replacement and Adjustment
78
General Cautions
78
Laser Unit
78
Used Toner
78
Special Tools and Lubricants
79
Special Tools
79
Lubricants
79
Symbols Used in Text
79
1 Replacement and Adjustment
80
Ardf (B351)
80
Covers
80
Front Door
80
Duplex Unit
80
Upper Right Cover
81
By-Pass Tray
82
Rear Covers
83
Rear Lower Cover
83
Rear Upper Cover
83
Left Covers
84
Left Upper Cover
84
Scanner Unit
85
Ardf
85
Exposure Glass
86
Scanner Exterior Panels/Operation Panel
87
Lens Block/Sbu Assembly
88
Original Size Sensors
89
Exposure Lamp
90
Scanner Hp Sensor/Platen Cover Sensor
91
Scanner Motor
92
Lamp Stabilizer and Scanner Motor Drive Board
93
Scanner Wire
94
Laser Unit
98
Caution Decal Locations
98
Inner Cover
99
Laser Unit
99
Polygon Mirror Motor
100
Laser Synchronization Detector
101
Ld Unit
101
Laser Beam Pitch Adjustment
102
Photoconductor Unit (Pcu)
103
Pcu
103
Drum
104
Pick-Off Pawls
105
Charge Roller/Charge Roller Cleaning Pad
106
Drum Cleaning Blade
107
ID Sensor
108
Development
109
Development Unit
109
Development Filter
110
Development Roller
110
Developer
111
Td Sensor
113
Transfer Unit
114
Transfer Belt Unit
114
Transfer Belt
115
Transfer Belt Cleaning Blade and Toner Overflow Sensor
116
Paper Feed
117
Pick-Up, Separation, and Feed Rollers
117
Lower Right Cover
118
Clutches
119
Relay/Upper Paper Feed and Lower Paper Feed
119
Upper Paper Feed Unit for Tray 1
120
Lower Paper Feed Unit for Tray 2
121
Paper End/Paper Height/Relay Sensors
122
Registration Sensor
123
Tray Lift Motor
125
Feed/Development Motor
126
Fusing
127
Fusing Unit
127
Fusing Unit Exit Guide
128
Hot Roller Strippers
128
Fusing Lamps
129
Thermistors and Thermostats
131
By-Pass Tray
134
Cover Replacement
134
Paper Feed Roller
135
Pick-Up Roller
135
By-Pass Separation Roller Replacement
136
Paper End Sensor and Pick-Up Solenoid Replacement
137
Paper Size Sensor Board Replacement
138
By-Pass Table Removal
139
Paper Feed Clutch Replacement
140
Duplex Unit
141
Duplex Cover Removal
141
Duplex Entrance Sensor Replacement
142
Duplex Exit Sensor Replacement
143
Drive Area
144
Registration Clutch and Transfer Belt Contact Clutch
144
Main Motor
145
Toner Supply Motor
146
Printed Circuit Boards
147
High Voltage Power Supply
147
I/O Board
148
Bicu Board
149
Psu
149
Hard Disk/Controller Board
150
Specifications
151
Copy Adjustments: Printing/Scanning
151
Printing
151
Registration - Leading Edge/Side-To-Side
151
Blank Margin
152
Main Scan Magnification
152
Parallelogram Image Adjustment
153
Magnification
154
Registration: Platen Mode
154
Scanning
154
Sub Scan Magnification
154
Adf Image Adjustment
155
Registration
155
Touch Screen Calibration
156
Troubleshooting
157
Service Call Conditions
157
Summary
157
Sc Code Descriptions
158
Electrical Component Defects
172
Sensors
172
Switches
173
Blown Fuse Conditions
174
Leds
174
Test Points
174
Service Tables
175
Service Program Mode
175
Service Program Mode Operation
175
Entering and Exiting SP Mode
175
SP Mode Button Summary
176
Selecting the Program Number
177
Switching between SP Mode and Copy Mode for Test Printing
177
Service Program Mode Tables
178
SP1-XXX: Feed
178
SP2-XXX: Drum
181
SP3-XXX: Process
189
SP4-XXX: Scanner
190
SP5-XXX: Mode
203
SP6-XXX: Peripherals
210
SP7-XXX: Data Log
212
Relay Sensor
216
Test Pattern Printing: Sp2-902
221
Test Pattern Table (SP2-902-2: IPU Test Print)
221
Test Pattern Table: SP2-902-3 Printing Test Patterns
222
Input Check
223
Main Machine Input Check: SP5-803
223
Dip Switches
225
Original Length Sensors
227
ARDF Input Check: SP6-007
227
Output Check
228
Main Machine Output Check: SP5-804
228
ARDF Output Check: SP6-008)
230
Smc Print out Lists: Sp5-990
230
Nip Band Width Adjustment: Sp1-109
234
Memory All Clear: Sp5-801
235
Software Reset
236
System Setting Reset
236
System Settings and Copy Setting Reset
236
Copier Setting Reset
237
Software Download
238
Uploading/Downloading Nvram Data
239
Uploading Nvram Data (Sp5-824)
239
Downloading Nvram Data (Sp5-825)
240
Self-Diagnostic Mode
241
Self-Diagnostic Mode at Power on
241
Detailed Self-Diagnostic Mode
242
Executing Detailed Self-Diagnosis
242
User Program Mode
244
How to Use up Mode
244
System Settings
244
UP Mode Initial Screen: User Tools/Counter Display
244
Copier/Document Server Features
245
Printer, Facsimile, Scanner Settings
245
Counter
246
Jam Detection
247
Dip Switches
247
Detailed Section Descriptions
248
Overview
248
Component Layout
248
Separation Roller
249
Paper Path
250
Drive Layout
251
Board Structure
252
Block Diagram
252
Controller
254
Copy Process Overview
256
Drum Charge
256
Exposure
256
Laser Exposure
256
Development
256
Cleaning
257
ID Sensor
257
Image Transfer
257
Quenching
257
Separation
257
Scanning
258
Overview
258
ADF Mode
259
Book Mode
259
Scanner Drive
259
Original Size Detection in Platen Mode
260
Image Processing
262
Overview
262
Sbu (Sensor Board Unit)
263
Auto Image Density (Ads)
264
Ipu (Image Processing Unit)
265
Overview
265
Image Processing Modes
266
Summary of Image Processing Functions
268
Image Processing Steps and Related Sp Modes
269
Text Mode
269
Text/Photo Mode
270
Photo Mode
271
Pale (Low-Density Mode)
272
Generation Copy Mode
273
Auto Shading (Shading Correction)
274
Background Erase
274
Independent Dot Erase
275
Filtering
276
Pre-Filter
276
Text Mode
277
Photo Mode
278
Text/Photo Mode
279
Generation Mode
280
Low Density Mode
280
Gradation Processing
281
Main Scan Magnification and Reduction
281
Line Width Correction
282
Laser Exposure
283
Overview
283
Auto Power Control (Apc)
284
Dual Beam Writing
285
Laser Beam Pitch Change Mechanism
286
Ld Safety Switches
287
Photoconductor Unit (Pcu)
288
Overview
288
Drive Mechanism
289
Drum Pawls
289
Drum Toner Seals
289
Drum Charge
290
Overview
290
Charge Roller Voltage Correction
291
Correction for Environmental Conditions
291
Correction for Paper Width and Thickness (By-Pass Tray Only)
292
Drum Charge Roller Cleaning
293
ID Sensor Pattern Production Timing
293
Overview
294
Developer Mixing
295
Drive Mechanism
295
Correction for Paper Width and Thickness (By-Pass Tray Only)
296
Development Bias
296
Mechanism
296
Toner Bottle Replenishment Mechanism
297
Toner Supply
297
Toner Supply Mechanism
298
Sensor Control Mode
299
Image Pixel Count Mode
300
Toner Near End/End Detection
300
Service Tables
301
Toner End Recovery
301
Toner Supply with Abnormal Sensors
301
Drum Cleaning
302
Drum Cleaning and Toner Recycling
302
Toner Recycling
302
Paper Feed
303
Overview
303
Paper Feed Drive
304
Pick-Up and Separation Roller Release Mechanism6-57
304
Paper Lift
305
Paper End Detection
306
Paper Registration
306
Paper Size Detection
307
Switches
307
By-Pass Tray
308
Overview
308
By-Pass Tray Operation
309
By-Pass Paper Size Detection
310
Duplex Unit
311
Exit Sensor
311
Overview
311
Duplex Drive Layout
312
Duplex Basic Operation
313
Larger than A4 Lengthwise/Lt Lengthwise
313
Up to A4 Lengthwise/Lt Lengthwise
313
Duplex Unit Feed in and Exit Mechanism
314
Feed-In
314
Inversion and Exit
314
Image Transfer and Paper Separation
315
Overview
315
Belt Drive Mechanism
316
Transfer Belt Unit Contact Mechanism
316
Image Transfer and Paper Separation Mechanism
317
Mechanism
318
Transfer Belt Charge
318
Currents Applied to Leading Edge and Image Areas, and for By-Pass Feed
320
Transfer Belt Cleaning Mechanism
321
Image Fusing and Paper Exit
322
Overview
322
Fusing Drive
323
Fusing Drive Release Mechanism
323
Exit Guide Plate and De-Curler Rollers
324
Fusing Entrance Guide Shift Mechanism
324
Cleaning Mechanism
325
Pressure Roller
325
Fusing Temperature Control
326
Temperature Control
326
Fuses
327
Fusing Idling Temperature
327
Overheat Protection
327
Energy Saver Modes
328
Overview
328
Energy Saver Mode
329
Entering the Energy Saver Mode
329
Return to Stand-By Mode
329
What Happens in Energy Saver Mode
329
Auto off Mode
330
Entering off Stand-By and off Modes
330
Off Mode
330
Off Stand-By Mode
330
Returning to Stand-By Mode
330
Tray 1
331
3 Replacement and Adjustment
311
3 Service Tables
327
Specifications
331
General Specifications
331
Power Consumption
332
Machine Configuration
333
Paper Height Detection
335
Optional Equipment
335
2 Detailed Descriptions
336
Staple Mode
336
No Staple Mode
336
Specifications
336
Stapler
337
Tray 2
337
Bridge Unit
338
3 Replacement and Adjustment
339
Upper Cover
339
Jam Conditions
342
Jam History
343
Shift Tray
344
Entrance Sensor
344
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