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Gestetner 4502 Manuals
Manuals and User Guides for Gestetner 4502. We have
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Gestetner 4502 manuals available for free PDF download: Service Manual, Copy Manual
Gestetner 4502 Service Manual (779 pages)
Brand:
Gestetner
| Category:
All in One Printer
| Size: 14.72 MB
Table of Contents
Table of Contents
13
Important Safety Notices
33
Laser Safety
34
Installation Procedure
39
Installation Requirements
39
Environment
40
Machine Level
40
Minimum Space Requirements
41
Power Requirements
41
Installable Option Table
42
Installation Flow Chart
43
Main Machine Installation
45
Installation Procedure
45
Development Unit and PCU
46
Toner Bottle
49
Paper Trays
50
Initialize TD Sensor and Developer
52
Set Paper Size for Paper Trays
53
Electrical Total Counter
54
HDD Caution Decal (for Only NA Models)
54
Paper Tray Unit Installation
55
Accessory Check
55
Installation Procedure
56
1-Bin Tray Unit Installation
60
Accessory Check
60
Installation Procedure
61
Bridge Unit Installation
67
Accessory Check
67
Installation Procedure
68
1000-Sheet Finisher Installation
70
Accessory Check
70
Installation Procedure
71
Two-Tray Finisher Installation
74
Accessory Check
74
Installation Procedure
75
Punch Unit Installation
78
Accessory Check
78
Installation Procedure
79
Auto Reverse Document Feeder Installation
82
Accessory Check
82
Installation Procedure
83
Lct Installation
85
Accessory Check
85
Installation Procedure
86
Platen Cover Installation
88
Key Counter Installation
89
Anti-Condensation Heater
91
Tray Heater
93
Tray Heater (Optional Paper Tray Unit)
94
Optional User Account Enhancement Unit
95
Preventive Maintenance
97
Preventive Maintenance Schedule
99
Pm Table
99
Replacement and Adjustment
103
General Cautions
105
Laser Unit
105
Used Toner
105
Special Tools and Lubricants
106
Special Tools
106
Lubricants
106
Symbols Used in Text
106
Front Door
107
Duplex Unit
107
Upper Right Cover
108
By-Pass Tray
109
Rear Covers
110
Rear Upper Cover
110
Rear Lower Cover
110
Left Covers
111
Left Upper Cover
111
Scanner Unit
112
Ardf
112
Exposure Glass
113
Scanner Exterior Panels/Operation Panel
114
Lens Block/Sbu Assembly
115
Original Size Sensors
116
Exposure Lamp
117
Scanner Hp Sensor/Platen Cover Sensor
118
Scanner Motor
119
Lamp Stabilizer and Scanner Motor Drive Board
120
Scanner Wire
121
Laser Unit
125
Caution Decal Locations
125
Laser Unit
126
Polygon Mirror Motor
127
Laser Synchronization Detector
128
Ld Unit
128
Laser Beam Pitch Adjustment
129
Photoconductor Unit (Pcu)
130
Pcu
130
Drum
131
Pick-Off Pawls
132
Charge Roller Cleaning Pad & Roller Brush
133
Drum Cleaning Blade
135
ID Sensor
135
Development
136
Development Unit
136
Development Filter
137
Development Roller
137
Developer
138
Td Sensor
140
Transfer Unit
141
Transfer Belt Unit
141
Transfer Belt
142
Transfer Belt Cleaning Blade and Toner Overflow Sensor
143
Paper Feed
144
Pick-Up, Separation, and Feed Rollers
144
Lower Right Cover
145
Relay/Upper Paper Feed and Lower Paper Feed Clutches
146
Upper Paper Feed Unit for Tray 1
147
Lower Paper Feed Unit for Tray 2
148
Paper End/Paper Height/Relay Sensors
149
Registration Sensor
150
Tray Lift Motor
152
Feed/Development Motor
153
Fusing
154
Fusing Unit
154
Fusing Unit Exit Guide
155
Hot Roller Strippers
155
Fusing Lamps
156
Thermistors and Thermostats
158
Fusing Roller/Pressure Roller
159
By-Pass Tray
161
Cover Replacement
161
By-Pass Paper Feed and Pick-Up Roller Replacement
162
By-Pass Separation Roller Replacement
163
Paper End Sensor and Pick-Up Solenoid Replacement
164
Paper Size Sensor Board Replacement
165
By-Pass Table Removal
166
Paper Feed Clutch Replacement
167
Duplex Unit
168
Duplex Cover Removal
168
Duplex Entrance Sensor Replacement
169
Duplex Exit Sensor Replacement
170
Drive Area
171
Registration Clutch and Transfer Belt Contact Clutch
171
Main Motor
172
Toner Supply Motor
173
Printed Circuit Boards
174
High Voltage Power Supply
174
I/O Board
175
Bicu Board
176
Psu
176
Hard Disk/Controller Board
177
Copy Adjustments: Printing/Scanning
178
Printing
178
Registration - Leading Edge/Side-To-Side
178
Blank Margin
179
Main Scan Magnification
179
Parallelogram Image Adjustment
180
Scanning
181
Magnification
181
Registration: Platen Mode
181
Sub Scan Magnification
181
Adf Image Adjustment
182
Registration
182
Touch Screen Calibration
183
Troubleshooting
185
Service Call Conditions
187
Sc Code Descriptions
188
Electrical Component Defects
202
Sensors
202
Switches
203
Blown Fuse Conditions
204
Leds
204
Test Points
204
Service Tables
205
Service Tables
207
Service Program Mode
207
Service Program Mode Operation
207
Entering and Exiting SP Mode
207
SP Mode Button Summary
208
Selecting the Program Number
209
Switching between SP Mode and Copy Mode for Test Printing
209
Service Program Mode Tables
210
SP1-XXX: Feed
210
SP2-XXX: Drum
213
SP3-XXX: Process
221
SP4-XXX: Scanner
222
SP5-XXX: Mode
235
SP6-XXX: Peripherals
242
SP7-XXX: Data Log
244
Test Pattern Printing: Sp2-902
253
Test Pattern Table (SP2-902-2: IPU Test Print)
253
Test Pattern Table: SP2-902-3 Printing Test Patterns
254
Input Check
255
Main Machine Input Check: SP5-803
255
ARDF Input Check: SP6-007
259
Output Check
260
Main Machine Output Check: SP5-804
260
ARDF Output Check: SP6-008)
262
Smc Print out Lists: Sp5-990
262
Nip Band Width Adjustment: Sp1-109
266
Memory All Clear: Sp5-801
267
Software Reset
268
System Settings and Copy Setting Reset
268
System Setting Reset
268
Copier Setting Reset
269
Software Download
270
Uploading/Downloading Nvram Data
271
Uploading Nvram Data (Sp5-824)
271
Downloading Nvram Data (Sp5-825)
272
Self-Diagnostic Mode
273
Self-Diagnostic Mode at Power on
273
Detailed Self-Diagnostic Mode
274
Executing Detailed Self-Diagnosis
274
User Program Mode
276
How to Use up Mode
276
System Settings
276
UP Mode Initial Screen: User Tools/Counter Display
276
Copier/Document Server Features
277
Printer, Facsimile, Scanner Settings
277
Counter
278
Dip Switches
279
Detailed Descriptions
281
Detailed Section Descriptions
283
Overview
283
Component Layout
283
Paper Path
285
Drive Layout
286
Board Structure
287
Block Diagram
287
Controller
289
Copy Process Overview
291
Exposure
291
Drum Charge
291
Laser Exposure
291
Development
291
Image Transfer
292
Separation
292
ID Sensor
292
Cleaning
292
Quenching
292
Overview
293
ADF Mode
294
Book Mode
294
Scanner Drive
294
Original Size Detection in Platen Mode
295
Image Processing
297
Overview
297
Sbu (Sensor Board Unit)
298
Auto Image Density (Ads)
299
Ipu (Image Processing Unit)
300
Overview
300
Image Processing Modes
301
Summary of Image Processing Functions
303
Image Processing Steps and Related Sp Modes
304
Text Mode
304
Text/Photo Mode
305
Photo Mode
306
Pale (Low-Density Mode)
307
Generation Copy Mode
308
Auto Shading (Shading Correction)
309
Background Erase
309
Independent Dot Erase
310
Filtering
311
Pre-Filter
311
Text Mode
312
Photo Mode
313
Text/Photo Mode
314
Low Density Mode
315
Laser Exposure
318
Auto Power Control (Apc)
319
Dual Beam Writing
320
Laser Beam Pitch Change Mechanism
321
Ld Safety Switches
322
Drum Pawls
324
Drum Toner Seals
324
Drum Charge
325
Charge Roller Voltage Correction
326
Correction for Environmental Conditions
326
Correction for Paper Width and Thickness (By-Pass Tray Only)
327
ID Sensor Pattern Production Timing
328
Drum Charge Roller Cleaning
328
Developer Mixing
330
Development Bias
331
Toner Supply
332
Toner Near End/End Detection
335
Toner End Recovery
336
Toner Supply with Abnormal Sensors
336
Drum Cleaning and Toner Recycling
337
Paper Feed Drive
339
Paper Lift
340
Paper Registration
341
Paper Size Detection
342
By-Pass Tray
343
Overview
343
By-Pass Tray Operation
344
By-Pass Paper Size Detection
345
Duplex Unit
346
Overview
346
Duplex Drive Layout
347
Duplex Basic Operation
348
Larger than A4 Lengthwise/Lt Lengthwise
348
Up to A4 Lengthwise/Lt Lengthwise
348
Duplex Unit Feed in and Exit Mechanism
349
Feed-In
349
Inversion and Exit
349
Image Transfer and Paper Separation
350
Overview
350
Belt Drive Mechanism
351
Transfer Belt Unit Contact Mechanism
351
Image Transfer and Paper Separation Mechanism
352
Transfer Belt Charge
353
Mechanism
353
Correction for Paper Width and Thickness
354
Currents Applied to Leading Edge and Image Areas, and for By-Pass Feed
355
Transfer Belt Cleaning Mechanism
356
Image Fusing and Paper Exit
357
Overview
357
Fusing Drive
358
Fusing Drive Release Mechanism
358
Fusing Entrance Guide Shift Mechanism
359
Exit Guide Plate and De-Curler Rollers
359
Pressure Roller
360
Cleaning Mechanism
360
Fusing Temperature Control
361
Temperature Control
361
Fusing Idling Temperature
362
Overheat Protection
362
Energy Saver Modes
363
Overview
363
Energy Saver Mode
364
Entering the Energy Saver Mode
364
Return to Stand-By Mode
364
What Happens in Energy Saver Mode
364
Auto off Mode
365
Entering off Stand-By and off Modes
365
Off Mode
365
Off Stand-By Mode
365
Returning to Stand-By Mode
365
Specifications
367
General Specifications
369
Power Consumption
370
Machine Configuration
371
Optional Equipment
373
Bridge Unit
376
Auto Reverse Document Feeder B351
377
Replacement and Adjustment
379
Covers
379
Original Feed Unit
380
Original Pick-Up Roller
380
Original Feed Belt
381
Skew Correction/Interval/ Registration/Original Width Sensors
382
Original Length Sensors
383
Separation Roller
383
Inverter /Original Set Sensors
384
Pick-Up Motor/Original Stopper Hp Sensor/Pick-Up Hp Sensor
384
Scanner Motor and Inverter Motor
385
Feed Motor, Skew Correction Roller Clutch
386
Exit Sensor
387
Stamp Solenoid
387
Controller Board
387
Troubleshooting
388
Timing Charts
388
A4(S)/Lt(S) Single-Side Original Mode
388
A4(S)/Lt(S) Double-Sided Original Mode
389
Jam Detection
390
Service Tables
391
Dip Switches
391
Test Points
391
Fuses
391
Detailed Description
392
Main Components
392
Drive Layout
393
Original Size Detection
394
Basic Mechanism
394
Mixed Original Size Mode
396
Original Feed-In Mechanism
397
Pick and Separation
397
Original Skew Correction
398
Reducing the Interval between
398
Original Transport and Exit
399
Single-Sided Originals
399
Double-Sided Originals
400
Stamp
401
Df70 Software Modification History
402
Large Capacity Tray A683
403
Overall Machine Information
405
Specifications
405
Mechanical Component Layout
406
Electrical Component Layout
407
Electrical Component Description
408
Drive Layout
409
Detailed Descriptions
410
Paper Feed Mechanism
410
Tray Lift and Paper Height Detection Mechanism
411
Tray Lifting Conditions
411
Tray Lowering Conditions
411
Tray Unit Slide Mechanism
412
Service Tables
413
Dip Switches
413
Test Points
413
Switches
413
Fuses
413
Replacement and Adjustment
414
Cover Replacement
414
Front Cover
414
Rear Cover
414
Right Lower Cover
414
Upper Cover
414
Roller Replacement
415
Paper Feed, Separation, and Pick-Up Rollers
415
Pick-Up Roller
415
Tray Lift and Paper End Sensor Replacement
416
Paper End Sensor
416
Tray Lift Sensor
416
Relay Sensor Replacement
417
Side Fence Position Change
418
Paper Tray Unit A682
419
Mechanical Component Layout
422
Detailed Descriptions
426
Paper Lift Mechanism
427
Paper End Detection
429
Paper Height Detection
430
Replacement and Adjustment
432
Cover Replacement
432
Right Cover
432
Rear Cover
432
Roller Replacement
433
Paper Feed, Separation, and Pick-Up Rollers
433
Paper Feed Roller
433
Pick-Up Roller
433
Separation Roller
433
Tray Motor Replacement
434
Paper Feed and Relay Clutch Replacement
435
Lower Paper Feed Unit
437
Paper End, Tray Lift, and Relay Sensor Replacement
438
Paper End Sensor
438
Tray Lift Sensor
438
Relay Sensor
438
3 Detailed Descriptions
442
Mechanical Component Layout
442
1 Overall Machine Information
443
Electrical Component Layout
443
Electrical Component Description
443
Drive Layout
444
Detailed Description
445
Junction Gate Mechanism
445
Exit Sensor Replacement
446
Bin Tray B376
447
Overall Machine Information
449
Specifications
449
Mechanical Component and Drive Layout
450
Electrical Component Layout
451
Electrical Component Description
451
Detailed Descriptions
452
Basic Operation
452
Replacement and Adjustment
453
Cover Removal
453
Front Cover
453
Upper Cover
453
Rear Cover
453
Paper Sensor Replacement
454
Entrance and Paper Limit Sensor Replacement
455
Entrance Sensor
455
Sheet Finisher A681
457
Overall Machine Information
459
Specifications
459
Mechanical Component Layout
460
Electrical Component Layout
461
Electrical Component Descriptions
462
Drive Layout
464
Detailed Descriptions
465
Junction Gate Mechanism
465
Staple Mode
465
No Staple Mode
465
Jogger Unit Paper Positioning Mechanism
466
Exit Guide Plate Open/Close Mechanism
467
Stapler
468
Feed out Mechanism
469
Shift Tray Up/Down Mechanism
470
Shift Tray Side-To-Side Mechanism
471
Jam Conditions
472
No Staple Mode (A4 Sideways, 3 Sheets/2Sets)
473
Staple Mode (A4 Sideways, 2 Sheets/2 Sets)
474
3 Service Table
475
Dip Switch Table
475
Entrance Sensor Replacement
478
Stack Height Sensor Replacement
480
Positioning Roller Replacement
481
Stapler Replacement
482
Rom History
483
External Covers
487
Inner Cover
487
1 Replacement and Adjustment
487
Positioning Roller
488
Exit Guide Plate Motor
491
Lift Motors
491
Lower Exit Sensor
493
Lower Stack Height Sensors
494
Tray 2 Shunt Position Sensor
494
Stapler Unit
495
Stapler Rotation Hp Sensor
495
Tray 1 Interior
496
Tray 1 Covers
496
Tray Shift Sensors and Tray Release Sensor
497
Tray 1 Shift Motor
497
Back Fence Lock Clutch
497
Finisher Main Board
498
Punch Hole Position Adjustment
498
A4(S)/Lt(S) Shift Mode with Punch – Tray
500
A4(S)/Lt(S) Staple Mode with Punch
501
2 Troubleshooting
500
3 Service Tables
503
Dip Switch Settings
503
4 Detailed Descriptions
504
General Layout
504
Junction Gates
506
Tray Shifting
507
Tray Shift Mechanisms
507
Tray Up/Down Mechanisms
509
Pre-Stack Mechanism
514
Stapler Movement
516
Stapler Mechanism
516
Feed out and Transport
518
Punch Unit (Optional)
519
Punch Drive Mechanism
519
Punch Waste Collection
520
Component Layout
524
Proof Tray Sensors
529
Paper Sensor
530
Tray Exit Sensor
530
Timing Chart and Misfeed Detection
531
3 Installation Procedure
533
Mailbox (G)
533
Requirement Options for Main Machine
533
Bridge Unit for Mailbox (G)
537
4 Replacement and Adjustment
543
Proof Tray Unit
543
Proof Transport Unit
543
Tray Unit
544
Main Control Board
546
Tray Exit Sensor Adjustment
547
Variable Resistors
550
1 Installation
557
Printer Installation
557
Postscript Unit (G)
563
Memory (G578/G)
564
Nib (G)
565
Ieee1394 Interface (G)
566
Checking the Connections
567
2 Troubleshooting
571
Troubleshooting
571
Controller Errors
571
Leds and Test Points
571
3 Service Tables
575
Enabling and Disabling Service Program Mode
575
Printer Service Mode
576
Service Mode Table
576
Sp Modes Related to Printer Controller
576
Scanner Service Mode
577
Scanner Program Mode Table
577
Firmware Update Procedure
585
Power-On Self Test
585
Self Diagnostic Test
585
Printer User Program Mode
586
Scanner User Program Mode
587
Detailed Section Descriptions
591
Controller Functions
592
Sample Print
592
Locked Print
592
Paper Source Selection
593
Auto Continue
594
Paper Output Tray
595
Duplex Printing
595
Scanner Functions
597
Image Processing for Scanner Mode
597
Led Indicators
598
Ieee1394 Interface
599
Pin Assignment
600
Remarks about this Interface Kit
601
Troubleshooting Notes
601
Supported Paper Sizes
614
Software Accessories
616
System Components
618
1 Installation
624
Installation
624
Fax Unit
624
Flow Chart
625
Fax Option Type 1045 Installation
626
G3 Interface Unit Type 1045 Installation
630
Isdn Option Type 1045 Installation
634
2 Troubleshooting
638
Troubleshooting
638
Error Codes
638
Error Codes for the Isdn Option
646
D-Channel Layer Management
647
D-Channel Link Layer
647
D-Channel Network Layer
648
B-Channel Link Layer
648
B-Channel Network Layer
649
Transport Layer
649
Session Layer
650
Document Layer
651
Presentation Layer
651
Fax Sc Codes
652
Fax Sc Code Table
653
Isdn Test Function
654
Back-To-Back Test
655
Bit Switches
667
System Switches
667
Scanner Switches
679
Printer Switches
684
Communication Switches
689
G3 Switches
698
G3-2 Switches
706
G3-3 Switches
711
G4 Internal Switches
712
G4 Parameter Switches
719
Ncu Parameters
722
Dedicated Transmission Parameters
733
Programming Procedure
733
Service Ram Addresses
738
Ncu (Us)
753
Ncu (Europe/Asia)
754
Sg3 Board
755
Sig4 Board
756
Video Data Path
757
Fax Communication Features
762
Document Server
766
Lan Fax Driver
767
Firmware History
769
Fax Option Software Modification History
771
Capabilities of Programmable Items
778
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Gestetner 4502 Copy Manual (65 pages)
Gestetner 2235: User Guide
Brand:
Gestetner
| Category:
Copier
| Size: 1.75 MB
Table of Contents
Copying from the Bypass Tray
5
When Copying Onto OHP Transparencies or Thick Paper
8
Storing a Program
9
Deleting a Program
10
Recalling a Program
11
Job Preset
12
Other Functions
13
Original Beeper
14
Sample Copy
14
Changing the Number of Sets
15
Preset Reduce/Enlarge
16
Create Margin Mode
17
Size Magnification
20
Directional Magnification (%)
22
Directional Size Magnification (Inch)
24
Original Direction and Completed Copies
27
Originals and Copy Direction
27
Specifying Orientation of Bound Originals
27
Series Copies
46
Copying Book Originals
49
Edit Image
57
Image Repeat
57
Double Copies
58
Border Erase
62
Center Erase
63
Center/Border Erase
64
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