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Ricoh B205 Manuals
Manuals and User Guides for Ricoh B205. We have
2
Ricoh B205 manuals available for free PDF download: Service Manual
Ricoh B205 Service Manual (883 pages)
Brand:
Ricoh
| Category:
All in One Printer
| Size: 14.11 MB
Table of Contents
B205/B209/D007/D008
13
Table of Contents
13
Bridge Unit B
22
Conventions Used in this Manual
23
Important Safety Notices
24
Laser Safety
25
1 Installation
29
Installation Requirements
31
Environment
31
Machine Level
31
Minimum Space Requirements
32
Power Requirements
33
Copier Installation
34
Power Sockets for Peripherals
34
Installation Flow Chart
35
Accessory Check
36
Installation Procedure
37
Tapes and Retainers
37
Developer
38
Toner Bottle
42
Emblem, Decals
43
Paper Tray Unit Installation
45
Accessory Check
45
Installation Procedure
46
Lct Installation
49
Accessory Check
49
Installation Procedure
50
Ardf Installation
53
Accessory Check
53
Installation Procedure
54
Interchange Unit Installation
58
Component Check
58
Installation Procedure
59
1-Bin Tray Unit Installation
61
Component Check
61
Installation Procedure
62
Shift Tray
65
Component Check
65
Installation Procedure
66
By-Pass Feed Unit Installation
68
Components Check
68
Installation Procedure
69
Duplex Unit Installation
71
Accessory Check
71
Installation Procedure
72
Bridge Unit Installation
74
Accessory Check
74
Installation Procedure
75
1000-Sheet Finisher Installation
77
Accessory Check
77
Installation Procedure
78
500-Sheet Finisher (B442) Installation
81
Accessory Check
81
Installation Procedure
82
Platen Cover (B406)
84
Key Counter
85
Optics Anti-Condensation Heater
87
Tray Heater
88
Tray Heater (Optional Paper Tray Unit)
90
Tray Heater (Optional Lct)
93
Copy Data Security Unit (B770)
96
Hdd (B773)
98
Data Overwrite Security Unit (B735)
100
Before You Begin
100
Seal Check and Removal
101
Installation
102
Preventive Maintenance
105
2 Preventive Maintenance Schedule
107
Pm Table
107
Main Motor Drive Gear
110
3 Replacement and Adjustment
111
Special Tools and Lubricants
113
Special Tools
113
Lubricants
113
General Cautions
114
Pcu (Photoconductor Unit)
114
Scanner Unit
114
Transfer Roller Unit
114
Fusing Unit
115
Laser Unit
115
Others
115
Paper Feed
115
Scanner Unit
116
Exposure Glass
116
Scanner Exterior/Operation Panel
117
Lens Block Assembly
118
Original Size Sensors
119
Exposure Lamp
120
Scanner Motor/Lamp Stabilizer
121
Scanner Wires
122
Laser Unit
125
Caution Decal Locations
125
Laser Unit
126
Polygon Mirror Motor
127
Ld Unit
128
Laser Synchronization Detector
129
Photoconductor Unit (Pcu)
130
Pcu Removal
130
Pick-Off Pawls
131
Opc Drum
132
Charge Roller, Cleaning Roller
133
Cleaning Blade
134
Developer
135
After Replacement of Pcu Components
139
Transfer Unit
140
Transfer Roller Unit
140
Image Density Sensor
141
Fusing/Exit
142
Fusing Unit
142
Thermistors
142
Thermostats
143
Hot Roller and Fusing Lamp
145
Pressure Roller/Cleaning Roller
147
Paper Exit Sensor/Paper Overflow Sensor
148
Paper Feed
149
Feed Roller: Tray 1
150
Paper End Sensor
151
Paper Tray Lift Motors
152
Registration Clutch
153
Lower Paper Feed Clutch
154
Paper Feed Clutches
154
Upper Paper Feed Clutch
154
Relay Clutches
155
Paper Size Detector
156
Registration Sensor
157
Lower Relay Sensor
158
Relay Sensors
158
Upper Relay Sensor
158
Dust Collection Box
159
Pcbs and Other Items
160
Controller Board
160
Nvram
161
Sbcu Board
162
Power Pack
163
Main Motor
164
Psu
165
Ipu
166
Hdd
167
Important Notes about HDD Replacement
168
Printing
169
Copy Adjustments: Printing/Scanning
169
Registration - Leading Edge/Side-To-Side
169
Blank Margin
170
Main Scan Magnification
170
Parallelogram Image Adjustment
171
Magnification
172
Registration: Platen Mode
172
Scanning
172
Standard White Density Adjustment
173
Adf Image Adjustment
174
Registration
174
Sub Scan Magnification
174
Touch Screen Calibration
175
4 Troubleshooting
177
Service Call Conditions
179
Sc Code Descriptions
180
Self-Diagnostic Mode
196
Self-Diagnostic Mode at Power on
196
Detailed Self-Diagnostic Mode
197
Executing Detailed Self-Diagnosis
197
Paper Feed Troubleshooting
199
Skewed Image
200
Image Problems
201
Skewed Images
201
Skewed, Trapezoid and Parallelogram Images
201
Trapezoid Images
201
Parallelogram Images
202
Checking Images with the Trimming Pattern
203
Correcting Skewed Images
204
Correcting the Images
204
Correcting Trapezoid Images
207
Correcting Parallelogram Images
208
Electrical Component Defects
209
Sensors
209
Switches
211
Blown Fuse Conditions
212
Service Tables
213
Service Program Mode
215
Service Mode Lock/Unlock
215
Service Program Mode Operation
216
Sp Mode Button Summary
217
Selecting the Program Number
218
Switching between Sp Mode and Copy Mode for Test Printing
218
Service Program Mode Tables
219
Sp1Xxx: Feed
220
Sp2Xxx: Drum
229
Sp4-XXX: Scanner
241
Sp5Xxx: Mode
252
Sp6Xxx: Peripherals
287
Sp7Xxx: Data Log
289
Sp8-XXX: Data Log
294
Test Pattern Printing (Sp)
328
Input Check
329
Main Machine Input Check (Sp)
329
Ardf Input Check (Sp)
332
Finisher Input Check (Sp)
333
Main Machine Output Check (Sp)
335
Output Check
335
Ardf Output Check (Sp)
337
Finisher Output Check (Sp)
337
Smc Data Lists (Sp)
338
Memory All Clear (Sp)
339
Aps Output Display (Sp)
340
Df Aps Sensor Output Display (Sp)
341
Nip Band Width Measurement (Sp)
342
Firmware Update
343
Software Reset
344
System Setting Reset
344
System Settings and Copy Setting Reset
344
Copier Setting Reset
345
User Tools
346
How to Use up Mode
346
System Settings
346
Copier/Document Server Features
346
Printer, Facsimile, Scanner Settings
347
Dip Switches
349
Using the Debug Log
350
Switching on and Setting up Save Debug Log
350
Recording Errors Manually
354
Retrieving the Debug Log from the Hdd
354
New Debug Log Codes
355
Uploading/Downloading Nvram Data
356
Detailed Descriptions
359
Paper Path
363
Board Structure
368
Controller Board
370
Copy Process
373
Scanner Drive
376
Original Size Detection: Platen Mode
377
Image Processing
379
Sbu (Sensor Board Unit)
380
Auto Image Density
381
Original Type Settings
382
Ipu (Image Processing Unit)
383
Image Processing Path
384
Auto Shading
390
Main Scan Magnification/Reduction
390
Mirroring for Adf Mode
390
Characteristic Detection
391
Background Erase
392
Gradation Processing
392
Line Width Correction
393
Video Control Unit (Gavd)
394
Laser Exposure
395
Auto Power Control (Apc)
396
Ld Safety Switch
397
Drum Charge
400
Charge Roller Voltage Correction
401
Correction for Environmental Conditions
401
ID Sensor Pattern Production Timing
402
Drum Charge Roller Cleaning
403
Developer Mixing
406
Development Bias
407
Toner Bottle Replenishment Mechanism
408
Toner Supply
408
Toner Supply Mechanism
409
Toner Density Control
410
Toner Density Measurement
412
Toner Density Sensor Initial Setting
412
Toner Supply Determination
412
Toner Supply Reference Voltage (Vref) Determination
412
Vsp/Vsg Detection
412
ID Sensor
414
Td Sensor
414
Toner Near End Detection
414
Toner Near End/End Detection and Recovery
414
Toner Supply in Abnormal Sensor Conditions
414
Drum Cleaning and Toner Recycling
416
Toner Recycling
417
Paper Feed Drive Mechanism
419
Paper Feed and Separation Mechanism
420
Paper Lift Mechanism
421
Paper End Detection
423
Paper Height Detection
424
Feed Pressure Adjustment for Paper Size
426
Paper Size Thresholds
426
Feed Pressure Adjustment
427
Paper Size Detection
429
Special Paper Setting
430
Paper Registration
432
Image Transfer and Paper Separation
433
Image Transfer Current Timing
434
Transfer Roller Cleaning
435
Paper Separation Mechanism
436
Image Fusing and Paper Exit
437
Fusing Drive and Release Mechanism
438
Fusing Entrance Guide Shift Mechanism
439
Pressure Roller
440
Cleaning Mechanism
441
Fusing Temperature Control
442
Fusing Lamp Control
443
Overheat Protection
444
Paper Exit
445
Energy Saver Modes
446
Energy Saver Mode
447
Auto off Mode
448
Entering off Stand-By and off Modes
448
Off Stand-By Mode
448
Returning to Stand-By Mode
448
Specifications
449
Machine Configuration
454
Copier Options
456
Fax Option
456
Options Table
456
Jam History
464
Document Feeder
466
Paper Size
466
Paper Tray Unit
469
Paper Tray Unit B390
471
1 Overall Machine Information
473
Specifications
473
Mechanical Component Layout
474
Electrical Component Layout
475
Electrical Component Description
476
Drive Layout
477
2 Detailed Descriptions
478
Paper Feed and Separation Mechanism
478
Paper Lift Mechanism
479
Paper End Detection
481
Paper Height Detection
482
Paper Size Detection
484
Side and End Fences
485
End Fence
485
Side Fences
485
3 Replacement and Adjustment
486
Feed Roller Replacement
486
Tray Main Board Replacement
487
Tray Motor Replacement
487
Relay Clutch Replacement
488
Upper Paper Feed Clutch Replacement
489
Lower Paper Feed Clutch Replacement
490
Lift Motor Replacement
491
Paper End Sensor Replacement
492
Vertical Transport Sensor Replacement
492
Paper Size Switch Replacement
493
Large Capacity Tray B391
497
1 Overall Machine Information
499
Specifications
499
Mechanical Component Layout
500
Electrical Component Layout
501
Electrical Component Descriptions
502
2 Detailed Section Descriptions
503
Paper Feed
503
Reverse Roller and Pick-Up Roller Release
504
Tray Lift
505
Near End/End Detection
506
Right Tray Side Fence
507
Left Tray Rear Fence
507
Right Tray Paper End Detection
508
3 Replacement and Adjustment
509
Detaching the Tray from the Mainframe
509
Rear Fence Hp Sensor
509
Changing the Tray Paper Size
510
Left Tray Paper End Sensor
510
Tray Lift Motor
511
Tray Motor
512
Paper Feed Clutch and Relay Clutch
513
Paper Feed Unit
514
Upper Limit, Right Tray Paper End, and Relay Sensors
515
Rear Fence Motor
516
Pick-Up/Paper Feed/Reverse Rollers
517
Sheet Finisher
519
1,000-Sheet Finisher B408
521
1 Replacement and Adjustment
523
Main Pcb
523
Stapler Unit
524
Motors
525
Shift Motor
525
Stapler Motor
525
Lower Transport Motor
526
Upper Transport Motor and Exit Motor
526
Motors and Sensors
527
Preparation
527
Stack Height Sensor
528
Stapler Tray Paper Sensor
528
Lower Tray Lift Motor
529
Stack Feed-Out Motor
529
2 Troubleshooting
530
Jam Detection
530
3 Service Tables
531
Dip Switch Settings
531
4 Detailed Descriptions
532
General Layout
532
Electrical Component Layout
533
Electrical Component Description
535
Drive Layout
537
Junction Gates
538
Sort/Stack Mode
538
Staple Mode
538
Upper Tray Mode
538
Upper Tray
539
Lower Tray Up/Down Mechanisms
540
Paper Shift Mechanism
541
Jogger Unit Paper Positioning Mechanism
542
Exit Guide Plate
543
Stapler Mechanism
544
Stapler Unit Movement Mechanism
545
Paper Feed-Out Mechanism
546
1-Bin Tray Unit B413
549
1 Overall Information
551
Specifications
551
Mechanical Component Layout
552
Electrical Component Layout
553
Paper Sensor Removal
555
Duplex Unit B414
559
1 Overall Machine Information
561
Specifications
561
Mechanical Component Layout
562
Electrical Component Layout
563
Electrical Component Description
564
Drive Layout
565
2 Detailed Descriptions
566
Basic Operation
566
Longer than A4 Sideways/Lt Sideways
566
Up to A4 Sideways/Lt Sideways
567
Feed in and Exit Mechanism
568
Inversion and Exit
568
When Paper Is Fed into Duplex Unit
568
3 Replacement and Adjustment
569
Cover Removal
569
Entrance Sensor Replacement
570
Exit Sensor Replacement
571
By-Pass Tray B415
575
1 Overall Machine Information
577
Specifications
577
Mechanical Component Layout
577
Electrical Component Description
578
Electrical Component Layout
578
Basic Operation
579
2 Detailed Descriptions
579
Paper Size Detection
580
3 Replacement and Adjustment
581
Paper Feed Roller/Friction Pad/Paper End Sensor
581
Paper Size Sensor Board
582
Paper Feed Clutch
583
Interchange Unit B416
587
1 Overall Machine Information
589
Specifications
589
Mechanical Component Layout
590
Drive Layout
591
2 Detailed Description
592
Junction Gate Mechanism
592
To the 1-Bin Tray
592
To the Duplex Unit
592
To the Exit Tray or Bridge Unit (for the Upper Tray on Top of the Bridge Unit, or the Finisher)
592
3 Replacement and Adjustment
593
Exit Sensor Replacement
593
Bridge Unit B417
597
1 Overall Machine Information
599
Specifications
599
Mechanical Component Layout
600
Electrical Component Layout
601
Electrical Component Description
602
Drive Layout
603
2 Detailed Description
604
Junction Gate Mechanism
604
3 Replacement and Adjustment
605
Bridge Unit Drive Motor Replacement
605
Tray Exit Sensor Replacement
606
Relay Sensor Replacement
606
500-Sheet Finisher B442
609
1 Replacement and Adjustment
611
Exterior
611
Entrance Upper Guide / Paper Exit Unit
614
Entrance Lower Guide
615
Paper Exit Unit Gear / Paddle Roller Solenoid
615
Stapler Unit
616
Jogger Tray Unit
616
Paper Exit Sensor Feeler
617
Main Motor
617
Jogger Motor
618
Control Board
618
Output Tray Unit
619
2 Detailed Descriptions
620
Overall Machine Information
620
Component Layout
620
Mechanical Component Layout
620
Drive Layout
621
Electrical Component Descriptions
622
Detailed Section Descriptions
624
Output Tray Mechanism
624
Stack Height Detection
624
Output Tray Up/Down Mechanism
625
Overview
626
Paper Feed
626
Straight Feed out Mode
626
Shift Sorting Mode
627
Stapling Mode
629
Error Detection
630
Jam Conditions
630
3 Overall Machine Information
631
Specifications
631
Internal Shift Sort Tray B459
635
1 Overall Machine Information
637
Specifications
637
Component Layout
638
2 Detailed Section Descriptions
639
Basic Operation
639
Primary Mechanisms
640
Tray Shift
640
Half Turn Detection
641
3 Replacement and Adjustment
642
Tray Cover Replacement
642
Tray Cover Attachment
642
Tray Cover Removal
642
Replacing the Half Turn Sensor
643
Replacing the Tray Motor
643
Tray Motor and Half Turn Sensor Replacement
643
Fax Option Type
645
Table of Contents
649
1 Installation
651
Fax Unit B766
651
Optional 32 Mb Memory
654
G3 Interface Unit B768
655
2 Replacement and Adjustment
659
Fcu
659
3 Troubleshooting
660
Error Codes
660
Ifax Troubleshooting
672
Ip-Fax Troubleshooting
675
IP-Fax Transmission
675
IP-Fax Reception
678
4 Service Tables
680
Bit Switches
688
System Switches
688
I-Fax Switches
698
Printer Switches
704
Communication Switches
709
G3 Switches
717
G3-2/3 Switches
723
G4 Internal Switches
729
G4 Parameter Switches
729
Ip Fax Switches
729
Ncu Parameters
735
Dedicated Transmission Parameters
744
Programming Procedure
744
Fax Parameters
745
Parameters
745
E-Mail Parameters
748
Service Ram Addresses
750
5 Details
759
Overview
759
Boards
760
Dram
760
FACE3 (Fax Application Control Engine)
760
Fcu
760
Modem (FAME)
760
Sm B766
761
Mbu
761
Memory Back-Up
761
Rom
761
Sram
761
Switches
761
AFE (Analog Front End)
762
CODEC (Coder-Decoder)
762
From
762
NCCP (New Communication Control Processor)
762
Reg
762
Sdram
762
Sg3 Board
762
Transmission
763
Video Data Path
763
Adjustments
764
Immediate Transmission
764
JBIG Transmission
764
Memory Transmission and Parallel Memory Transmission
764
Reception
765
Fax Communication Features
766
Multi-Port
766
Document Server
767
Internet Mail Communication
768
Mail Transmission
768
Mail Reception
770
Handling Mail Reception Errors
772
Secure Internet Reception
772
Transfer Request: Request by Mail
773
E-Mail Messages
774
E-Mail Options (Sub TX Mode)
774
How the Subject Differs According to Mail Type
774
Subject and Level of Importance
774
Subjects Displayed on the PC
774
Message Disposition Notification (MDN)
775
Handling Reports
776
Ip-Fax
777
6 Specifications
778
General Specifications
778
Capabilities of Programmable Items
779
Ifax Specifications
780
Ip-Fax Specifications
781
Fax Unit Configuration
782
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Ricoh B205 Service Manual (433 pages)
Brand:
Ricoh
| Category:
All in One Printer
| Size: 7.46 MB
Table of Contents
Table of Contents
5
Installation Procedure
14
Installation Requirements
14
Environment
14
Machine Level
14
Minimum Space Requirements
15
Power Requirements
16
Copier Installation
17
Power Sockets for Peripherals
17
Installation Flow Chart
18
Accessory Check
19
Installation Procedure
20
Tapes and Retainers
20
Developer
21
Toner Bottle
25
Emblem, Decals
26
Paper Tray Unit Installation
28
Accessory Check
28
Installation Procedure
29
Lct Installation
32
Accessory Check
32
Installation Procedure
33
Ardf Installation
36
Accessory Check
36
Installation Procedure
37
Interchange Unit Installation
41
Component Check
41
Installation Procedure
42
1-Bin Tray Unit Installation
44
Component Check
44
Installation Procedure
45
Shift Tray
48
Component Check
48
Installation Procedure
49
By-Pass Feed Unit Installation
51
Components Check
51
Installation Procedure
52
Duplex Unit Installation
54
Accessory Check
54
Installation Procedure
55
Bridge Unit Installation
57
Accessory Check
57
Installation Procedure
58
1000-Sheet Finisher Installation
60
Accessory Check
60
Installation Procedure
61
500-Sheet Finisher (B442) Installation
64
Accessory Check
64
Installation Procedure
65
Platen Cover (B406)
67
Key Counter
68
Optics Anti-Condensation Heater
70
Tray Heater
71
Tray Heater (Optional Paper Tray Unit)
73
Tray Heater (Optional Lct)
76
Copy Data Security Unit (B770)
79
Hdd (B773)
81
Data Overwrite Security Unit (B735)
83
Before You Begin
83
Seal Check and Removal
84
Installation
85
Preventive Maintenance Schedule
88
Pm Table
88
Main Motor Drive Gear
91
Replacement and Adjustment
92
Special Tools and Lubricants
92
Special Tools
92
Lubricants
92
General Cautions
93
Pcu (Photoconductor Unit)
93
Transfer Roller Unit
93
Scanner Unit
93
Laser Unit
94
Fusing Unit
94
Paper Feed
94
Others
94
Scanner Unit
95
Exposure Glass
95
Scanner Exterior/Operation Panel
96
Lens Block Assembly
97
Original Size Sensors
98
Exposure Lamp
99
Scanner Motor/Lamp Stabilizer
100
Scanner Wires
101
Laser Unit
104
Caution Decal Locations
104
Laser Unit
105
Polygon Mirror Motor
106
Ld Unit
107
Laser Synchronization Detector
108
Photoconductor Unit (Pcu)
109
Pcu Removal
109
Pick-Off Pawls
110
Opc Drum
111
Charge Roller, Cleaning Roller
112
Cleaning Blade
113
Developer
114
After Replacement of Pcu Components
118
Transfer Unit
119
Transfer Roller Unit
119
Image Density Sensor
120
Fusing/Exit
121
Fusing Unit
121
Thermistors
121
Thermostats
122
Hot Roller and Fusing Lamp
124
Pressure Roller/Cleaning Roller
126
Paper Exit Sensor/Paper Overflow Sensor
127
Paper Feed
128
Feed Roller: Tray 1
128
Feed Roller: Tray 2
129
Paper End Sensor
130
Paper Tray Lift Motors
131
Registration Clutch
132
Paper Feed Clutches
133
Lower Paper Feed Clutch
133
Upper Paper Feed Clutch
133
Relay Clutches
134
Paper Size Detector
135
Registration Sensor
136
Relay Sensors
137
Upper Relay Sensor
137
Lower Relay Sensor
137
Dust Collection Box
138
Pcbs and Other Items
139
Controller Board
139
Nvram
140
Sbcu Board
141
Power Pack
142
Main Motor
143
Psu
144
Ipu
145
Hdd
146
Important Notes about HDD Replacement
147
Copy Adjustments: Printing/Scanning
148
Printing
148
Registration - Leading Edge/Side-To-Side
148
Blank Margin
149
Main Scan Magnification
149
Parallelogram Image Adjustment
150
Scanning
151
Registration: Platen Mode
151
Magnification
151
Standard White Density Adjustment
152
Adf Image Adjustment
153
Registration
153
Sub Scan Magnification
153
Touch Screen Calibration
154
Troubleshooting
155
Service Call Conditions
155
Sc Code Descriptions
156
Self-Diagnostic Mode
172
Self-Diagnostic Mode at Power on
172
Detailed Self-Diagnostic Mode
173
Executing Detailed Self-Diagnosis
173
Paper Feed Troubleshooting
175
Skewed Image
176
Image Problems
177
Skewed, Trapezoid and Parallelogram Images
177
Skewed Images
177
Trapezoid Images
177
Parallelogram Images
178
Checking Images with the Trimming Pattern
179
Correcting the Images
180
Correcting Skewed Images
180
Correcting Trapezoid Images
183
Correcting Parallelogram Images
184
Electrical Component Defects
185
Sensors
185
Switches
187
Blown Fuse Conditions
188
Service Tables
189
Service Program Mode
189
Service Mode Lock/Unlock
189
Service Program Mode Operation
190
Entering and Exiting SP Mode
190
SP Mode Button Summary
191
Switching between SP Mode and Copy Mode for Test Printing
192
Selecting the Program Number
192
Service Program Mode Tables
193
SP1XXX: Feed
194
SP2XXX: Drum
203
SP4-XXX: Scanner
215
SP5XXX: Mode
226
SP6XXX: Peripherals
262
SP7XXX: Data Log
264
SP8-XXX: Data Log2
269
Test Pattern Printing (Sp2902-3)
303
Input Check
304
Main Machine Input Check (SP5803)
304
ARDF Input Check (SP6007)
307
Finisher Input Check (SP6117)
308
Output Check
310
Main Machine Output Check (SP5804)
310
ARDF Output Check (SP6008)
312
Finisher Output Check (SP6118)
312
Smc Data Lists (Sp5990)
313
Memory All Clear (Sp5801)
314
Aps Output Display (Sp4301)
315
Df Aps Sensor Output Display (Sp6901)
316
Nip Band Width Measurement (Sp1109)
317
Firmware Update
318
Software Reset
319
System Settings and Copy Setting Reset
319
System Setting Reset
319
Copier Setting Reset
320
User Tools
321
How to Use up Mode
321
UP Mode Initial Screen: User Tools/Counter Display
321
System Settings
321
Copier/Document Server Features
321
Printer, Facsimile, Scanner Settings
322
Inquiry
322
Counter
323
Leds
324
Controller
324
Sbcu
324
Dip Switches
324
Using the Debug Log
325
Switching on and Setting up Save Debug Log
325
Retrieving the Debug Log from the Hdd
329
Recording Errors Manually
329
New Debug Log Codes
330
SP5857-015 Copy SD Card-To-SD Card: any Desired Key
330
SP5857-016 Create a File on HDD to Store a Log
330
SP5857-017 Create a File on SD Card to Store a Log
330
Details
331
Overview
331
Mechanical Components
331
Paper Path
333
Electrical Component Descriptions
334
Drive Layout
337
Board Structure
338
Overview
338
Controller Board
340
Copy Process
343
Scanning
345
Overview
345
Scanner Drive
346
Original Size Detection: Platen Mode
347
Image Processing
349
Overview
349
Sbu (Sensor Board Unit)
350
Auto Image Density
351
Original Type Settings
352
Ipu (Image Processing Unit)
353
Overview
353
Image Processing Path
356
Main Scan Magnification/Reduction
360
Mirroring for ADF Mode
360
Characteristic Detection
361
Filtering
361
Background Erase
362
ID Gamma (G) Correction
362
Gradation Processing
362
Line Width Correction
363
Video Control Unit (Gavd)
364
Fine Character and Image (FCI)
364
Laser Exposure
365
Overview
365
Auto Power Control (Apc)
366
Ld Safety Switch
367
Photoconductor Unit (Pcu)
368
Overview
368
Drive
369
Drum Charge
370
Overview
370
Charge Roller Voltage Correction
371
Correction for Environmental Conditions
371
ID Sensor Pattern Production Timing
372
Drum Charge Roller Cleaning
373
Development
374
Overview
374
Drive
375
Developer Mixing
376
Development Bias
377
Toner Supply
378
Toner Bottle Replenishment Mechanism
378
Toner Supply Mechanism
379
Toner Density Control
380
Overview
380
Toner Density Sensor Initial Setting
382
Toner Density Measurement
382
Vsp/Vsg Detection
382
Toner Supply Reference Voltage (Vref) Determination
382
Toner Supply Determination
382
Toner Supply Motor on Time Determinations
383
Toner Supply in Abnormal Sensor Conditions
384
ID Sensor
384
TD Sensor
384
Toner Near End/End Detection and Recovery
384
Toner Near End Detection
384
Toner Near End Recovery
385
Toner End Detection
385
Toner End Recovery
385
Drum Cleaning and Toner Recycling
386
Drum Cleaning
386
Toner Recycling
387
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