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4400DT - Phaser B/W Laser Printer
Xerox 4400DT - Phaser B/W Laser Printer Manuals
Manuals and User Guides for Xerox 4400DT - Phaser B/W Laser Printer. We have
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Xerox 4400DT - Phaser B/W Laser Printer manuals available for free PDF download: Service Manual, Specification Sheet
Xerox 4400DT - Phaser B/W Laser Printer Service Manual (503 pages)
Service Manual
Brand:
Xerox
| Category:
Printer
| Size: 15.51 MB
Table of Contents
Table of Contents
14
Service Manual
3
FRU Disassembly
4
Symbols Marked on the Product
5
Power Source
6
General Guidelines
8
Warning Labels
8
Safety Interlocks
8
Servicing Electrical Components
9
Servicing Mechanical Components
9
Regulatory Specifications
10
Declaration of Conformity
10
Safety Standards
12
Table of Contents
14
General Information
18
Section Contents
18
Phaser 4400 Laser Printer Overview
19
Configurations
19
Resident Fonts
19
Monitoring Consumables
20
Printer Memory Configuration
20
Repackaging Information
20
Parts of the Printer
21
Base Configuration Components
21
Internal Components
23
Printer Options
23
Front Panel Configuration
25
Led Indications
25
Image Processor Board
27
Machine Orientation
29
Menu Map
30
Printer Specifications
31
Media and Tray Specifications
31
Physical Specifications
31
Custom Paper Sizes
33
Paper Tips
33
Paper Weights
33
Functional Specifications
35
Electrical Specifications
36
Environmental Specifications
36
Error Messages and Codes
38
Introduction
38
Section Contents
38
Introduction
39
Service Flowchart
39
Service Technician Cautionary Statements
40
Procedures
40
Voltage Measurements
41
Using Fault History
42
Service Diagnostics
44
Entering Service Diagnostics
44
Service Diagnostics Menu Map
45
Using the Front Panel with Service Diagnostics
46
Engine Test Print
47
Engine NVRAM Default Settings
47
Error and Jam Recovery
47
Printer Error Messages
48
Index of Errors
48
Consumable Errors
48
Jam Errors
48
Tray and Media Errors
48
Error Message Summaries
49
Jam at Tray [#]. Open Tray [#] and Front Cover
55
Front Cover
58
Jam at Mpt; Open Front Cover to Clear
59
Jam at Front; Open Front Cover to Clear
60
Jam at Exit; Open Rear Cover to Clear
62
Jam at Stacker; Open both Rear Covers to Clear
64
Jam at Front/Rear; Open Front/Rear Cover to Clear
66
Paper Size Jam; Check Size and Open Rear Cover to Clear. (Pse)
67
Close Front Cover/Close Rear Cover
68
Install or Reseat Print Cartridge
70
Replace Print Cartridge
71
Toner Is Low
72
Install or Reseat the Duplex Unit
73
Maintenance Kit Is Near End of Life
73
Install or Reseat the Envelope Feeder
74
Stacker Failure
74
Standard Output Tray Is Full. Unload Paper
75
Tray [#] Paper Is Low
76
Tray 2 (or Tray 3) Paper Is Low
77
No Paper in Tray
78
Main Motor Failure
82
Laser Unit Failure
85
Fuser Failure
86
Engine Logic Board Nvram Failure
87
Tray 2 or 3 Failure
89
Image Processor POST Error Codes
95
Fault Reporting Devices
95
Led Blink Patterns
95
Troubleshooting
98
Section Contents
98
Introduction
98
Measurements
98
Troubleshooting Procedures
99
Toner Sensor Failure
105
Inoperative Printer
106
Erratic Printer Operation
110
Power Supply
111
Main Motor Assembly
112
Laser Assembly
114
Fuser Assembly
115
Registration Sensor
117
Registration Clutch
124
Tray 1 Feed Clutch
126
Image Processor Isolation
128
Electrical Noise
130
Exit Sensor
131
Exit Motor
132
Image-Quality Checkout Procedures
138
Deletions (Line, Band, Spots)
141
Fusing
142
Resolution
143
Registration (Side-To-Side)
144
Registration (Lead Edge-To-Trail Edge)
145
Skew
146
Skips / Smears
147
Spots
148
Other Print Defects
149
Image-Quality Troubleshooting Procedures
150
Initial Actions
151
Light (Undertoned) Prints
151
Blank Prints
153
Black Prints
155
Vertical Deletions
156
Horizontal Deletions
158
Vertical Streaks
160
Horizontal Streaks
162
Spots
165
Unfused Image
166
Damaged Print
168
Resolution
169
Spot Deletions
170
Repeating Defects
171
Residual Image
172
Background
173
Uneven Density
175
Skewed Image
176
Registration
178
Skips / Smears
180
Tests Prints, Adjustments, and Nvram Reset
182
Section Contents
182
Service Test Prints
182
Test Print
183
Engine Test Print
185
Service Test Prints
183
Adjustments
186
Registration
186
Fuser Temperature
187
Resetting NVRAM
188
Customer Menu Resets
188
Front Panel Shortcut Reset
189
Service Diagnostics Resets
189
Cleaning and Maintenance
192
Service Preventive Maintenance Procedure
192
Fru Disassembly
194
List of Procedures
194
Covers and Trays
199
RRP 1.1 Left Interface Cover
199
RRP 1.2 Left Cover
200
RRP 1.3 Option Cover
201
RRP 1.4 Top Cover Assembly
202
RRP 1.5 Right Cover
203
RRP 1.6 Front Cover Assembly
204
RRP 1.7 Left Front Cover
205
RRP 1.8 Rear Cover Assembly
206
RRP 1.9 Front Panel Assembly
207
RRP 1.10 Interlock Cover
208
RRP 1.11 Left Plate
209
RRP 1.12 Plate Handle
210
Tray 1
211
RRP 2.1 Retard Roller Assembly
211
RRP 2.2 Friction Clutch Assembly
213
RRP 2.3 Retard Spring
215
RRP 2.4 Motor Assembly
217
RRP 2.5 Paper Feeder Connector and Socket Guide
219
Paper Feed (Tray 1)
221
RRP 3.1 Paper Feeder
221
RRP 3.2 Turn Roller Assembly
222
RRP 3.3 Tray 1 no Paper Actuator
223
RRP 3.4 Stack Height Sensor
224
RRP 3.5 Low Paper Sensor
225
RRP 3.6 Feed Clutch Assembly
226
RRP 3.7 Feeder Assembly
228
RRP 3.8 Paper Feed Rollers
229
RRP 3.9 Feeder PWB
230
RRP 3.10 Feeder Socket
232
RRP 3.11 Size Sensor Housing
233
RRP 3.12 Size Sensor Actuators
234
RRP 3.13 Tray 1 Size PWB
235
RRP 3.14 Size Harness Assembly
236
Paper Feed (MPT)
237
RRP 4.1 MPT Chute Assembly
237
RRP 4.2 MPT Feed Roller Assembly
238
RRP 4.3 MPT Feed Roller
240
RRP 4.4 Bottom Tray Assembly
241
RRP 4.5 MPT no Paper Actuator
243
RRP 4.6 Tray Pick up
244
RRP 4.7 Retard Pad Assembly
245
RRP 4.8 MPT no Paper Sensor
246
RRP 4.9 MPT Pick up Solenoid
248
RRP 4.10 Envelope Connector Assembly
249
Paper Transportation
250
RRP 5.1 Paper Handler Assembly
250
RRP 5.2 Toner Sensor
252
RRP 5.3 Registration Actuator
253
RRP 5.4 Registration Sensor
254
RRP 5.5 Registration Clutch
255
RRP 5.6 Rubber Registration Roller
255
Exit Assembly and Fuser
258
RRP 6.1 Transport Chute Assembly
258
RRP 6.2 Fuser Assembly
259
RRP 6.3 Fuser Harness Assembly
260
RRP 6.4 Exit Chute Assembly
262
RRP 6.5 Exit Motor Assembly
264
RRP 6.6 Output Tray Full Sensor
265
RRP 6.7 MID 1 and MID 2 Roller Assemblies
266
RRP 6.8 Output Tray Full Actuator
269
RRP 6.9 Fuser Upper Cover Assembly/ Heat Rod
270
Xerographics
272
RRP 7.1 Transfer Roller Assembly
272
RRP 7.2 Print Cartridge Top Guide Assembly
273
RRP 7.3 Print Cartridge Sensor Assembly
274
RRP 7.4 Laser Assembly
275
RRP 7.5 Print Cartridge Side Guide
276
Main Drive
277
RRP 8.1 Main Motor Assembly
277
RRP 8.2 Main Drive Gear Assembly
278
Electrical
280
RRP 9.1 Fan Assembly
280
RRP 9.2 Image Processor Board
281
RRP 9.3 Engine Logic Board
282
Rrp 9.4 5 VDC Pwb
283
Rrp 9.5 Lvps Pwb
284
Rrp 9.6 Hvps Pwb
285
RRP 9.7 Connector PWB
287
RRP 9.8 Main Switch
288
RRP 9.9 Front Interlock Switch Assembly
289
RRP 9.10 Rear Interlock Switch Assembly
290
RRP 9.11 Stacker Harness Assembly
291
RRP 9.12 Duplex Harness Assembly
292
Stacker
294
RRP 10.1 Stacker
294
RRP 10.2 Exit Tray Extension
295
RRP 10.3 Exit Tray
295
RRP 10.4 Rear Cover Assembly
297
RRP 10.5 Lower Cover
298
RRP 10.6 Inner Exit Chute Assembly
299
RRP 10.7 Stacker PWB
300
RRP 10.8 Motor Drive Assembly
301
RRP 10.9 Static Eliminator
302
RRP 10.10 Direction Solenoid
303
RRP 10.11 Exit Sensor Assembly
304
RRP 10.12 Stacker Full Sensor Actuator
305
RRP 10.13 Stacker Full Sensor
306
RRP 10.14 Offset Roller Assembly
307
RRP 10.15 MID Roller Assembly
308
RRP 10.16 Offset Assembly
310
RRP 10.17 Offset Motor Assembly
311
RRP 10.18 Offset Assembly Home Sensor
312
Optional Paper Feeder
313
RRP 11.1 Printer Removal
313
RRP 11.2 550-Sheet Feeder Right Cover
314
RRP 11.3 550-Sheet Feeder Left Cover
315
RRP 11.4 550-Sheet Feeder Gear Bracket Assembly
316
RRP 11.5 Top Plate
317
RRP 11.6 550-Sheet Feeder Drive Assembly
318
RRP 11.7 no Paper Actuator
319
RRP 11.8 Turn Roller Assembly
320
RRP 11.9 Feeder PWB
321
RRP 11.10 Feed Clutch Assembly
322
RRP 11.11 Paper Feed Rolls
323
RRP 11.12 Feeder Assembly
324
RRP 11.13 Stack Height Sensor
325
RRP 11.14 Low Paper Sensor
326
RRP 11.15 Feeder Socket
327
RRP 11.16 550-Sheet Feeder Size Harness Assembly
328
RRP 11.17 Size Sensor Housing Assembly
329
RRP 11.18 Size Sensor Actuators
331
RRP 11.19 Size PWB
332
RRP 11.20 Size Harness Assembly
333
Duplex Unit
334
RRP 12.1 Duplex Unit
334
RRP 12.2 Turn Chute Assembly
335
RRP 12.3 Duplex Cover
336
RRP 12.4 Duplex PWB
337
RRP 12.5 Drive Cover
338
RRP 12.6 Connector Chute Assembly
339
RRP 12.7 Upper Chute Assembly
340
RRP 12.8 Motor Assembly
342
RRP 12.9 Rear Roller Assembly
343
RRP 12.10 Middle Roller Assembly
344
RRP 12.11 Front Roller Assembly
346
RRP 12.12 Synchronous Belt
347
RRP 12.13 Duplex Sensor
348
RRP 12.14 Duplex Unit Home Sensor
349
Envelope Feeder
350
RRP 13.1 Bottom Cover
350
RRP 13.2 Top Chute
351
RRP 13.3 Envelope Feeder PWB
352
RRP 13.4 Retard Roller Assembly
353
RRP 13.5 Exit Pinch Roller
354
RRP 13.6 Exit Sensor Assembly
355
RRP 13.7 Weight Arm
356
RRP 13.8 Tray Extension
357
RRP 13.9 no Paper Actuator
358
RRP 13.10 no Paper Sensor
359
RRP 13.11 Gear Cover
360
RRP 13.12 Feed Clutch
361
RRP 13.13 Transport Roller Assembly
362
RRP 13.14 Bottom Roller Assembly
363
RRP 13.15 Feed Roller Assembly 1
365
RRP 13.16 Feed Roller Assembly 2
367
RRP 13.17 Feed Belts
369
Parts Lists
372
Parts List Index
372
Using the Parts Lists
372
Paper Tray 1
377
Paper Feeder
381
Paper Transport
385
Drive and Xerographics
391
Optional Feeder
397
Theory of Operation
414
Section Contents
414
Print Process Overview
416
Print Process Description
418
Charge
418
Exposure
419
Development
419
Transfer
421
Discharge
422
Cleaning
423
The Paper Path
424
The Three Possible Paper Paths
425
Front Panel Message
426
Drive Flow
427
Drive Transmission to the MPT Roller Assembly
428
Drive Transmission to the Turn Roller Assembly
429
Drive Transmission to the Feeder Assembly
430
Drive Transmission to the Rubber Registration Roller Assembly
431
Drive Transmission to the Drum and the Transfer Roller
432
Drive Transmission to the Fuser Assembly
433
Drive Transmission to the Exit Components
434
Engine Logic Board and Front Panel Functions
435
Image Processor Board
435
VDC Pwb
435
Power Supplies
436
The Low Voltage Power Supply (LVPS)
436
The High Voltage Power Supply (HVPS)
436
Interlocks
437
Laser Control
438
Laser Self-Check
438
Printable Area
438
Fuser Control
439
Laser Trouble (U2 Error Code)
439
Fuser Temperature Control
439
Fuser Temperature Adjustment
439
Fuser Warm-Up
439
Fuser Trouble (U4 Error Code)
440
AC Power Shutoff to the Fuser
440
Fuser Temperature Cycling
440
Fan Control
441
Erase Cycle
441
Duplex Printing
442
Duplex Printing Paper Path
442
Duplex Printing Methods
444
Drive Flow
444
Function of Major Components
445
Envelope Feeder
446
Envelope Feeder Paper Path
446
Drive Flow
448
Function of Major Components
449
Stacker
450
Stacker Paper Path
450
Drive Flow
452
Function of Major Components
453
Duplex Operation
453
Full Stack Detection
453
Stacker Control
453
Option Feeder Assembly
455
Option Feeder Assembly Paper Path
455
Drive Flow
457
Function of Major Components
458
Wiring Data
460
Section Contents
460
Introduction
461
Location of P/J Connectors
461
Wiring Diagram Notations
462
Base Engine Wiring Data
463
Base Engine P/J Table
463
Base Engine P/J Maps
465
Base Engine Block Diagrams
467
Wiring Diagrams
472
550-Sheet Feeder
481
550-Sheet Feeder P/J Table
481
550-Sheet Feeder P/J Map
482
550-Sheet Feeder Block Diagram 1 of 2
483
550-Sheet Feeder Block Diagram 2 of 2
484
Duplex Unit
485
Duplex Unit P/J Table
485
Duplex Unit P/J Map
486
Duplex Unit Block Diagram
487
Stacker
490
Stacker P/J Table
490
Stacker P/J Map
491
Stacker Block Diagram
492
Envelope Feeder
496
Envelope Feeder P/J Table
496
Envelope Feeder P/J Map
497
Envelope Feeder Block Diagram
498
Envelope Feeder Wiring Diagrams
499
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Xerox 4400DT - Phaser B/W Laser Printer Specification Sheet (2 pages)
Xerox Laser Printer Specification Sheet
Brand:
Xerox
| Category:
Printer
| Size: 1.71 MB
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