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PHASER 6121MFP
Service Manual
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Phas
er 6121MFP Serv
ice Manual
8-81
Service Parts Disa
ssembly
5.
R
emov
e 3 screws (meta
l, 6mm, with washer and lock wa
sher), and then
remov
e the harness f
rom the harness guide.
6.
Unlock the motor cove
r
t
ab.
s6121mfp-352
s6121mfp-358
400
402
Table of Contents
Main Page
Default Chapter
1
Service Manual
1
Table of Contents
5
Manual Organization
14
Symbols Marked on the Product
15
Power Source
16
General Guidelines
18
Safety Interlocks
18
Warning Labels
18
Servicing Electrical Components
19
Servicing Mechanical Components
19
Regulatory Specifications
20
European Union
21
1 General Information
24
Printer Introduction and Overview
24
Technical Support Information
24
Printer Configurations
25
Parts of the Printer
26
Front Views
26
Rear View
27
Options
28
Control Panel
30
Maintenance Items
31
Consumables
32
Specifications
33
Printer Specifications
33
Performance Specifications
34
Controller
35
Electrical Specifications
36
Environmental Specifications
36
Media and Tray Specifications
37
First Print Output Time (Fpot)
38
First Copy Output Time
39
Physical Dimensions and Clearances
39
Mounting Surface Specifications
40
Information Pages
41
Operational Overview
44
System Control
46
Paper Path of the Printer
47
Print Engine Paper Path
47
Automatic Document Feeder (ADF) Print Path
48
Major Assemblies and Functions
51
Main Engine Component Overview
52
Fuser
55
Fuser Temperature Control
56
Wait Control
57
Print Control
57
Protection against Abnormally High Temperature
58
Scanner
59
Laser Unit
62
Imaging Unit
65
Toner Cartridge
67
Toner Cartridge Rack
69
Transfer Belt
74
Transfer Roller
79
Image Transfer
80
Transfer Roller Cleaning
81
Process Control
82
Temperature/Humidity Sensor
86
System Thermal Regulation
87
Waste Toner Collection
89
Media Handling
92
Tray 1 Feeder
92
Output Tray
95
Automatic Document Feeder (Adf)
96
2 Theory of Operation
44
Duplex Unit
99
Duplex Unit Fan
102
Sheet Feeder Unit (Tray)
103
4 General Troubleshooting
108
Introduction
108
Accessing the Error Log History List
108
Error Messages
110
Service Call Messages
111
Scan Errors
113
Fax Errors
115
Transmission Errors
132
Other Error/Warning Messages
156
Using the Troubleshooting Procedures
160
Jam Error Procedures
162
Initial Actions for Jam Errors
162
Jam Errors
163
Jam Error Procedures
164
Initial Actions
165
Service Call Error Troubleshooting Procedures
175
Main Motor Failure
175
B Toner Rack Failure
176
Scanner Fan Failure
177
A Duplex Unit Fan Failure
178
C Exhaust Fan Failure
179
E Lvps Fan Failure
180
Transfer Belt Failure
181
Transfer Roll Failure
182
Laser Motor Failure and 0310 Laser Unit Failure
183
Fuser Failure and 0503 Thermistor Failure
185
Thermistor Failure, 0510 Fuser Failure, and 0520 Fuser Failure
186
Scanner Home Failure
187
F51 Waste Toner Failure
188
Interface Failure
189
C Fax Modem Failure
190
C0 Print Control Board Malfunction
190
DD Initial Toner Failure
191
E2 Engine Rom Failure
191
A3 Scanner Head Failure
192
Cf01 Controller Failure
193
Fff Control Rom Failure
193
Servicing Instructions
197
Service Diagnostic Tests
198
General Printer Problems
199
Sided Printing Problems
203
Changing the Duplexing Speed
203
Media-Based Problems
203
Control Panel Led Is On, Control Panel Display Is Blank
204
Control Panel Troubleshooting
204
Multiple-Sheet Pick
204
Printer Does Not Come to a "Ready" State
204
Fax Troubleshooting
205
Fax Protocol Report
205
Transmission Fault
207
Reception Fault
210
Other Fax Problems
213
Fax Failure after Installation/Relocation
216
Fax Failure after Continuous Normal Operation
218
Power Supply Problems
220
Power Supply Troubleshooting
220
Control Panel Indicators Do Not Light
221
Abnormal Noise and Electrical Problems
222
Electrical Noise
223
Abnormal Noise During Standby
224
Operating System and Application Problems
225
Windows 2000, Windows Xp, Windows Server Troubleshooting
225
Verify Settings
225
Verify Driver Installation
225
Macintosh Troubleshooting (Mac os 10.2 and Higher)
226
Troubleshooting
227
Defects Associated with Specific Printer Components
228
5 Print-Quality Troubleshooting
228
Print-Quality Problems Overview
228
Repeating Defects
230
Initial Actions for Troubleshooting Print-Quality
231
Check the Media and Media Settings
231
Check Printer Condition
231
Environmental Checks
232
Print Quality Troubleshooting
233
Printing Test Patterns
233
Automatic Document Feeder (Adf) Print Quality Problems
234
Blank Copy or Black Copy
234
Light Print
236
Foggy Background
238
White or Colored Lines and Bands in Feed Direction
240
White or Colored Lines and Bands in Scan Direction
242
Black Spots
245
Gradation Reproduction Failure
246
Void Areas and White Spots
247
Colored Spots
249
Blurred Image
250
Incorrect Color Image Registration
251
Poor Fusing Performance or Offset
252
Brush Effect or Blurred Image
253
Back Marking
254
Uneven Pitch
255
Uneven Density in the Feed Direction
259
Uneven Density in the Scan Direction
260
Print-Quality Specifications
261
Service Mode
264
Entering Service Mode
264
Adjust Function Procedures
264
Using the Adjust Functions
264
Service Mode Menu Maps
265
Adjustments and Calibrations
266
Service Mode Menu
267
Service's Choice Function Descriptions
271
Default Setting
272
Available Settings
273
Protocol Report
274
Adjustment Function Descriptions
276
Top Adjustment
284
Total Print
290
Counter Function Descriptions
290
Supplies Status
291
Soft Switch
298
Fixed Zoom Change
302
Factory Test
303
Clear Data
304
Memory Clear
304
Maintenance Mode
305
Maintenance Mode Entry Procedure
305
7 Cleaning and Maintenance
308
Recommended Tools
308
Maintenance Summary
308
Maintenance Procedures
309
Rip (Repair, Inspect, and Prevent) Procedure
309
Clean the Scanner Glass
310
Feed Roller
311
Laser Window
313
Adf Retard Roller and Feed Roller
314
Sheet Feeder Paper Pick-Up Roller
316
Duplexer Transport Rollers
318
Standard Orientation of the Printer
322
Notations in the Disassembly Text
324
Fastener Types
325
Maintenance Items and Consumables
326
Separation Pad
332
Adf Pick-Up Roller
333
Adf Feed Roller
334
Toner Cartridges
340
Rear Cover
348
Left Side Cover
348
Right Side Cover
349
Adf Rear Cover
350
Disassembly Procedures
351
Adf Unit
359
Lifting Plate Assembly
363
High Voltage Board
377
Engine Control Board
379
Fax Board
382
Image Processor Board
386
Usb Board
390
Power Supply
392
Main Motor
399
Developing Motor
404
Power Supply Fan Motor
409
Fan Duct Guide Assembly/Ventilation Fan Motor
415
Exit Tray Cooling Fan
416
Paper Path Guide Assembly
418
Front Door Switch
419
Solenoids and Sensors
420
Tray 1 Feed Solenoid
420
Registration Roller Solenoid
421
Image Transfer Solenoid
423
Cleaning Blade Solenoid (Sd)
424
Humidity Sensor/Registration Sensor
426
Duplex Unit Transport Sensor
428
Sheet Feeder Tray (Pl)
429
Duplex Unit (Pl)
430
9 Parts List
434
Serial Number Format
434
Using the Parts List
435
Part Lists
435
Parts List Index
436
Automatic Document Feeder Parts
438
Part List 2.0 Scanner
442
Control Panel
443
Part List 3.0 External Parts
444
Part List 4.0 Main Frame Section
446
Part List 6.0 Paper Take-Up Section
452
Part List 8.0 Paper Exit Section
458
Part List 10.0 Right Guide Section
464
Part List 11.0 Fuser
466
Part List 12.0 Cooling Section
468
Part List 13.0 Electrical Components Section
470
Part List 14.3 Duplex Base Unit
478
Sheet Tray Option
480
Part List 15.3 500-Sheet Feeder Tray
484
Xerox Supplies and Accessories
486
Service Kits
486
10 Wiring
490
Plug/Jack Designations and Locator Diagrams
490
Print Engine Plug/Jack Designators
490
Engine Control Board
492
System Connections
492
Plug/Jack Locators
493
Wiring Diagrams
498
Notations Used in the Wiring Diagrams
498
Control Panel Wiring
501
Engine Control Board Wiring
502
Imaging Wiring
503
Image Processor Board Wiring
504
Power Supply Wiring
505
Hvps Wiring
506
Menu Navigation
510
Copy Menu
513
Scan Menu
515
Fax Menu
516
Firmware Update
521
Acronyms and Abbreviations
522
High Voltage Power Supply
523
Image Processor Board
526
Power Supply
527
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