Xerox PHASER 7500 - Theory of Operation

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Chapter

Theory of Operation

In this chapter...

• Table of Contents

• Phaser 7500 Operational Overview

•Printing Process

•Print Data Flow

• Paper Feed

• Major Assemblies and Functions

•Drive Assembly

• Operating Mode

• Control

Main Page

Table of Contents5
Service Terms21
Symbols Marked on the Product22
Power Safety Precautions23
Electrostatic Discharge Precautions24
Service Safety Summary25
Moving the Printer27
Regulatory Information28
Manual Organization30
General Information31
Printer Introduction and Overview32
Technical Support Information32
Printer Configurations33
Parts of the Printer34
Front, Left, and Top Views34
Left and Rear Views35
Control Panel Configurations36
Printer Options37
Additional Memory37
Productivity Kit (Hard Disk Drive)37
Duplex Unit38
Printer Stand38
Optional 500-Sheet Feeder (Tray 3)39
Optional 1500-Sheet Feeder (Trays 3, 4, & 5)39
Wireless Network Adapter39
Maintenance Items40
Consumables41
Specifications42
Printer Specifications42
Memory Specifications43
Environment Specifications43
Electrical Specifications43
Energy Consumption44
Print Speed46
First Print Output Time47
Image Specifications48
Paper and Tray Specifications49
Physical Dimensions and Clearances52
Printer Dimensions52
Clearance and Mounting Surface Specifications53
Non-Genuine Mode55
Maintenance Function56
Firmware Update56
Diagnostics56
Information Pages57
Menu Map57
Sample Pages57
Supplies Info57
Troubleshooting58
Service Diagnostics59
Theory of Operation61
Table of Contents62
Phaser 7500 Operational Overview64
System Overview64
Printing Process65
Electric Charge66
Exposure67
Development69
Primary Transfer (Drum --> Belt)72
Cleaning (Drum/ BCR)74
Secondary Transfer (Belt --> Paper)75
Electric Discharge77
Cleaning (Belt/ 2Nd BTR)77
Waste Toner Collection78
Fusing79
Print Data Flow80
Paper Feed81
Paper Feed Layout81
Paper Feed from the Paper Tray83
Paper Feed from Tray 1 (MPT)84
Paper Transport85
Transfer/ Fusing/ Paper Output87
2-Sided Feed88
Major Assemblies and Functions89
Exposure (LPH)89
Electric Charge (Drum)90
Development (Developer)91
Primary Transfer93
Toner Collection96
Secondary Transfer97
Fusing (Fuser)99
Paper Feeder101
Tray 1 (MPT)102
Registration104
Paper Output105
Driver106
Fan107
Electrical108
Single Tray Module (STM) (Optional)111
1500-Optional Sheet Feeder113
Duplex Feed (Optional)116
Drive Assembly117
Main Drive Motor Assembly (PL3.2.3)117
Drum/ Deve Drive Motor (K) (PL3.3.3)117
Drum/ Deve Drive Motor (Y/M/C) (PL3.3.5)118
IBT Drive Motor Assembly (PL3.3.4)118
Fuser Drive Motor Assembly (PL3.1.10)119
Exit Motor (PL17.1.15)119
Agitator Motor (PL8.2.7)120
Tray Feed/ Lift up Motor (PL9.4.3)121
Tray 1 Feed/ Nudger Motor (PL13.2.18)122
Toner Dispenser Motor (PL5.1.7)123
Duplex Motor (PL14.5.8)124
STM T/A Motor Assembly (PL11.5.2)125
TM Takeaway Motor (PL10.9.5)125
Operating Mode126
Ready Mode126
Standby Mode126
Energy Saver Mode (Deep Sleep)127
Control128
Paper Size Detection128
Process Control132
Color Registration Control134
Error Messages and Codes139
Introduction140
Accessing Fault History140
Fault History140
Servicing Instructions141
Messages, Chain Link Codes, and Procedures142
Error Messages Abbreviations142
Error Message and Chain-Link Code Summary143
Status Messages and Codes152
Paper Size Detection155
General Troubleshooting158
116-324 Fail158
016-782/ 016-784 Fail159
Common System Fail160
HDD System Fail161
NET/ USB System Fail164
IOT System Fail165
HDD Job Fail165
General Sensor Failure166
Centreware Internet Services Failure167
Jam Errors169
Registration Sensor on Jam (Trays 2/3/4/5)169
Tray 3 Misfeed170
Feed out Sensor on Jam (Tray 3/4)173
Tray 2 Feed out Sensor Static Jam174
Tray 4 Misfeed175
Feed out Sensor 3 on Jam (Tray 4)178
Tray 4 Feed out Sensor Static Jam179
Tray 5 Misfeed180
Tray 5 Feed out Sensor Static Jam183
Tray 1 (MPT) Misfeed184
Tray 1 Feed out Sensor off Jam186
Regi Sensor on Jam (Tray 1)188
Regi Sensor off Jam189
Exit Sensor 1 off Jam191
Exit Sensor 1 on Jam192
POB Sensor on Jam194
Registration Sensor on Jam (Duplex Wait)195
Registration Sensor on Jam (Duplex Direct)196
Duplex Wait Sensor on Jam197
Registration Sensor Static Jam198
Exit Sensor 1 Static Jam199
POB Sensor Static Jam200
Duplex Wait Sensor Static Jam201
System Errors202
Heat Roll STS Disconnect Fail202
Heat Roll in NC Sensor Differential Amp Fail203
Heat Roll STS over Temperature Fail204
Fuser Hot Not Ready Return Time Fail205
Warm up Time Fail206
Fuser Motor Fail207
Heat Roll NC Sensor Disconnection Fail209
Heat Roll NC Sensor over Temperature Fail210
Heat Roll NC Sensor Broken Fail211
Heat Roll NC Sensor Range Fail212
Heat Roll Paper Winding Fail213
Fuser on Time Fail214
Illegal Fuser215
Fuser Fan Fail216
Fuser Assembly Near Life Warning/ Fuser Assembly Life over Warning218
Tray 2/3/4/5 Size Mismatch219
Face down Tray 1 Paper Full220
Operation (Y/M/C) Toner Empty222
Operation y Drum End of Life223
Paper Type Mismatch224
Operation M Drum End of Life225
Operation C Drum End of Life226
Tray 2/3/4/5 out of Place227
Tray 2/3/4/5 Empty228
Tray 1 Empty229
SMH Size Mismatch230
Tray 2/3/4/5 Size Mismatch231
ATS/ APS no Paper (Iotsc Detect)232
ATS/ APS no Destination Error233
SMH Stop Check234
IM Logic Fail235
MCU PWB F7 Blows236
MCU PWB F8 Blows237
MCU NVM (EEPROM) Data Fail238
MCU NVM (EEPROM) Access Fail239
MCU NVM (EEPROM) Buffer Fail240
Motor Drive PWB F1 Blows241
Motor Drive PWB F2 Blows242
Motor Drive PWB F3 Blows243
Serial I/O Fail244
Motor Drive PWB F4 Blows245
Motor Drive PWB F6 Blows246
Drum Y, M, C Motor Fail247
Drum K Motor Fail249
IBT Motor Fail251
Main Motor Fail253
HV Fan Fail255
IBT Fan Fail256
Process 2 Fan Fail258
NOHAD Logic Fail260
LVPS Exhaust Fan Fail261
Rear Bottom Fan Fail262
NOHAD Temperature Sensor Fail264
Image Ready NG/ Controller Communication Fail267
Drive Logic Fail268
Mk_Panel_Ng270
Mi_Pitch_Ng271
Mk_Mkif_Msg_Reject272
Mk_Mmif_Msg_Reject273
Eng_Emergency_Over_Wait274
Eng_Emergency_No_Timer275
Eng_Emergency_Enforced_Stop276
Mk_Emergency_Over_Wait277
Mk_Emergency_No_Timer278
Mk_Emergency_Enforced_Stop279
All Destination Tray Broken280
LPH Power on Fail y281
LPH Power Fail M283
LPH Power Fail C285
LPH Power Fail K287
LPH Download Data Fail y289
LPH Download Data Fail M291
LPH Download Data Fail C293
LPH Download Data Fail K295
LPH Mismatch Fail (Y/M/C/K)297
LPH Read Fail y299
LPH Read Fail M300
LPH Read Fail C301
LPH Read Fail K302
LPH Write Fail y303
LPH Write Fail M305
LPH Write Fail C307
LPH Write Fail K309
LPH Act Fail y311
LPH Act Fail M313
LPH Act Fail C315
LPH Act Fail K317
LPH Chip Fail y319
LPH Chip Fail M320
LPH Chip Fail C321
LPH Chip Fail K322
LPH PLL Lock Fail y323
LPH PLL Lock Fail M324
LPH PLL Lock Fail C325
LPH PLL Lock Fail K326
LPH Latch Timing Fail Y/ LPH FFC Connect Fail y327
LPH Latch Timing Fail M/ LPH FFC Connect Fail M328
LPH Latch Timing Fail C/ LPH FFC Connect Fail C329
LPH Latch Timing Fail K/ LPH FFC Connect Fail K330
BITZ1 Initialize Fail/ BITZ2 Initialize Fail331
Bitz1 CONTIF Fail/ Bitz2 CONTIF Fail332
Tray 2 Lift up Fail333
Tray 2 Paper Size Sensor Broken335
Tray 3 Lift up Fail336
Tray 3 Paper Size Sensor Broken339
Tray 4 Lift up Fail340
Tray 4 Paper Size Sensor Broken342
Tray 5 Lift up Fail343
Tray 5 Paper Size Sensor Broken345
Tray 1 Nudger up down Fail346
Tray Module Kind Mismatch348
Tray Module Reset Fail349
Tray Module Logic Fail/ Tray Module Communication Fail350
Front Cover Interlock Open351
L/H Cover Interlock Open352
Tray Module L/H Cover Open353
Duplex Cover Open354
P/H Module Logic Fail355
All Feed Tray Broken356
Transparency Sensor Fail357
Paper Kind Mismatch (APS Job)358
Paper Kind Mismatch, Job Continue359
RC Sample Lateral Fail-A1360
RC Sample Block Fail-A1-In/ RC Sample Block Fail-A1-Out361
RC Sample Block Fail-B-#1-In362
RC Sample Block Fail-B-#1-Out364
RC Sample Block Fail-B-#2-In366
RC Sample Block Fail-B-#2-Out368
RC Sample Block Fail-B-#3-In370
RC Sample Block Fail-B-#3-Out372
RC Sample Block Fail-B-#4-In374
RC Sample Block Fail-B-#4-Out376
RC Data over Flow Fail378
RC Data over Range Fail379
RC Data Linearity Fail380
Auger Broken382
CRU ASIC Communication Fail384
Waste Toner Bottle Near Full385
Drum Cartridge (K/Y/M/C) Near Life386
Drum Cartridge (K/Y/M/C) Life over387
Waste Toner Bottle Not in Position388
Waste Toner Bottle Full389
Drum Cartridge K Life End390
Drum CRUM K Communication Fail391
Drum CRUM (K/Y/M/C) Data Broken392
Drum CRUM (K/Y/M/C) Data Mismatch393
Drum CRUM y Communication Fail394
Drum CRUM M Communication Fail395
Drum CRUM C Communication Fail396
Drum CRUM K Not in Position397
Drum CRUM y Not in Position398
Drum CRUM M Not in Position399
Drum CRUM C Not in Position400
ATC Fail (Y)401
ATC Fail (M)402
ATC Fail (C)403
ATC Fail (K)404
ADC Shutter Open Fail/ ADC Shutter Close Fail405
ADC Sensor Fail406
ATC Amplitude Fail (Y)/ ATC Average Fail (Y)407
ATC Amplitude Fail (M)/ ATC Average Fail (M)408
ATC Amplitude Fail (C)/ ATC Average Fail (C)409
ATC Amplitude Fail (K)/ ATC Average Fail (K)410
Temperature Sensor Fail/ Humidity Sensor Fail411
ADC Patch Fail (Y)412
ADC Patch Fail (M)413
ADC Patch Fail (C)414
ADC Patch Fail (K)415
ADC Mini Setup Fail (Y)416
ADC Mini Setup Fail (M)417
ADC Mini Setup Fail (C)418
ADC Mini Setup Fail (K)419
Y Disp Motor Fail420
M Disp Motor Fail421
C Disp Motor Fail422
K Disp Motor Fail423
Toner Cartridge (K/Y/M/C) Near Empty424
K Toner Cartridge Empty425
Toner K CRUM Not in Position426
Toner K CRUM Communication Fail427
Toner K CRUM Data Broken Fail/ Toner K CRUM Data Mismatch Fail428
Toner M CRUM Communication Fail429
Toner C CRUM Communication Fail430
Toner y CRUM Communication Fail431
Toner y CRUM Data Broken Fail/ Toner y CRUM Data Mismatch Fail432
Toner M CRUM Data Broken Fail/ Toner M CRUM Data Mismatch Fail433
Toner C CRUM Data Broken Fail/ Toner C CRUM Data Mismatch Fail434
Toner y CRUM Not in Position435
Toner M CRUM Not in Position436
Toner C CRUM Not in Position437
IBT Front Cover Open438
1St BTR Contact/ Retract Fail439
2Nd BTR Contact/ Retract Fail441
Belt Home Fail too Long443
IBT Unit Near End Warning/ IBT Unit End Warning445
IBT CLN Unit Near End Warning/ IBT CLN Unit End Warning446
2Nd BTR Unit Near End Warning/ 2Nd BTR Unit End Warning447
General Troubleshooting449
Introduction450
General Troubleshooting Checklist450
Fault Isolation450
System Startup451
Power on Self Test (POST)452
POST Soft Fault Messages453
POST Hard Fault Messages454
Service Diagnostics455
Service Diagnostics Menu456
Using Service Diagnostics457
Service Diagnostics Controls458
Control Panel Shortcuts458
Hidden Service Menu458
Control Panel Troubleshooting459
Control Panel Is Functional, but the Printer Does Not Come to a "Ready" State459
Control Panel LED Is On, Control Panel Display Is Blank459
Printer Hangs with the Xerox Logo Displayed, or Reboots459
AC Power Troubleshooting461
Power Supply Troubleshooting463
VDC Power Troubleshooting463
+24 VDC Power464
RAM Errors465
Intermittent Problems467
Network Diagnostics469
Network Diagnostics Overview469
Diagnostic Status Returned469
Unable to Print472
Media Jams and the Paper Path473
Media-Based Problems473
Multiple-Sheet Pick473
Mis-Pick473
Skewed Image474
Damaged Prints474
Wrinkled Envelopes474
Fuser Jams475
Exit Jams475
Paper Size Detection476
USB Port Testing479
Operating System and Application Problems480
Windows 2000, Windows XP, Windows Server Troubleshooting480
Verify Settings480
Verify Driver Installation480
Macintosh Troubleshooting (Mac os 10.3 and Higher)481
UNIX/ Linux481
Print-Quality Troubleshooting485
Print-Quality Problems Overview486
Defects Associated with Specific Printer Components486
Print-Quality Troubleshooting Pages488
Test Prints489
Control Panel Test Prints489
Service Diagnostics Test Prints500
Initial Actions before Troubleshooting503
Checking the Printer Condition503
Print-Quality Specifications504
Environmental Condition504
Quality Paper504
Paper Condition504
Printer Condition504
Print-Quality Troubleshooting505
Repeating Defect Measurement505
Print-Quality Defect Definitions506
IQ-1 1Mm Stripes509
IQ-2 Image Shift in Process Direction510
IQ-3 White Stripes511
IQ-4 SLED Transfer Cycle Stripes512
IQ-5 In/ out Density Difference513
IQ-6 Video Data/ Crosstalk515
IQ-7 Image Shift in Process516
Edge-Less Image (no Margins)518
IQ-9 Contamination Stripes519
IQ-10 Chip/ Half Chip Blanks520
IQ-11 SLED Transfer Failure521
IQ-12 Tapes Not Peeled523
Charging Roll Pitch White Stripes - 1524
Charging Roll Pitch White Stripes - 2525
IQ-15 Photoreceptor Pitch Color Stripes526
IQ-16 Background on Glossy Media528
IQ-17 Toner Image Detection Color Stripes529
IQ-18 Toner Droplet Contamination530
IQ-19 Smear on Heavyweight531
IQ-20 Rough Black533
IQ-21 Moist Paper Transfer Failure534
IQ-22 Toner Contamination at Lead/ Trail Edge535
IQ-23 Side 2 Transfer Failure536
IQ-24 Trail Edge Transfer Failure537
MWS (Side 2) (Micro White Spots)538
IQ-26 Color Stripes539
Transfer Blank Areas (Partially Moist Paper)540
IQ-28 Nip Marks541
IQ-29 Wetting542
IQ-30 Condensation543
Adjustments and Calibrations545
Adjustments546
Paper Guide Position Setting546
Skew Adjustment547
Calibrations549
ATC Sensor Setup549
ADC Output Check550
Regicon Check551
Regicon Calibration552
LED EEPROM Check553
Cleaning and Maintenance555
Service Maintenance Procedure556
Recommended Tools556
Cleaning557
Cleaning the LED Assembly Window558
Cleaning the Fuser560
Maintenance561
RIP (Repair, Inspect, and Prevent) Procedure561
Service Parts Disassembly563
Table of Contents564
Overview568
Standard Orientation of the Printer568
Notations in the Disassembly Text569
Preparation569
Fastener Types570
Maintenance Items and Consumables571
REP 1.1 Toner Cartridge (Y/M/C/K)571
REP 1.2 Imaging Unit (Drum) (Y/M/C/K)572
REP 1.3 Waste Cartridge574
REP 1.4 Memory Card575
REP 1.5 Configuration Chip577
REP 1.6 Productivity Kit (Hard Drive)578
LED Print Head580
REP 2.1 LED Print Head (LPH) Unit (Y/M/C/K)580
REP 2.2 LPH Cleaner582
REP 2.3 Imaging Unit Cover583
REP 2.4 LPH Rear PWB584
REP 2.5 LPH Cable Assembly585
Drive588
REP 3.1 Fuser Input Bracket Assembly588
REP 3.2 Fuser Link/ Spring589
REP 3.3 Fuser & IBT Drive Motor Assembly590
REP 3.4 Main Drive Assembly591
REP 3.5 Main Drive Motor Assembly592
REP 3.6 Retract Drive Assembly593
REP 3.7 1St BTR Contact Retract Sensor594
REP 3.8 Drum/ Deve Drive Assembly595
REP 3.9 Drum/ Deve Drive Motor597
REP 3.10 IBT Drive Motor Assembly598
REP 3.11 Drum/ Deve Drive Motor (Y, M, C)599
Nohad600
REP 4.1 Fuser Fan600
REP 4.2 Rear Duct/ Fuser Fan Duct/ Rear Fuser Duct601
REP 4.3 HV Fan602
Development605
REP 5.1 Toner Dispenser Motor Assembly605
REP 5.2 Toner Dispenser Motor (C/M/Y/K)607
REP 5.3 Dispenser Pipe Assembly (C/M/Y)/ Dispenser Pipe Assembly (K)608
REP 5.4 Deve Plate Assembly611
REP 5.5 Developer Housing Assembly (C/M/Y/K)612
REP 5.6 ATC Sensor PWB614
REP 5.7 Dispenser Pipe (Y/M/C/K)616
REP 5.8 Developer Beads618
Transfer619
REP 6.1 IBT Belt Cleaner Assembly619
REP 6.2 IBT Belt Unit/ Front Lock Bracket/ Rear Lock Bracket/ Tension Lever620
REP 6.2.5 IBT Belt624
REP 6.3 Conductor Housing Assembly626
REP 6.4 HVPS (1St/ 2Nd/ DTS)627
Fuser629
REP 7.1 Fuser Assembly629
Xerographic630
REP 8.1 Erase Lamp Unit (K)630
REP 8.2 Erase Lamp Unit (Y/M/C)632
REP 8.3 Handle Lock Lever634
REP 8.4 Bottle Guide Assembly635
REP 8.5 Waste Toner Bottle Full Sensor/ Waste Toner Bottle Position Sensor636
REP 8.6 Waste Toner Pipe Assembly637
REP 8.7 Agitator Motor Assembly638
REP 8.8 Agitator Motor639
REP 8.9 Gear Bracket Assembly640
REP 8.10 Drive Shaft Assembly641
REP 8.11 Sensor Bracket Assembly642
REP 8.12 Auger Lock Sensor643
Tray 2 Feeder/ Tray 2644
REP 9.1 Tray 2 Paper Size Sensor644
REP 9.9 Tray 2 Feeder Assembly/ Chute Assembly645
REP 9.10 Tray 2 Feed/ Lift up Motor647
REP 9.12 Tray Nudger Level Sensor/ Tray 2 no Paper Sensor648
REP 9.14 Feed Roll/ Retard Roll/ Nudger Roll649
REP 9.15 Clutch Assy. (25T)/ One-Way Clutch/ Friction Clutch650
REP 9.16 Tray Assembly651
1500-Sheet Feeder (Option)652
REP 10.1 Tray 3/4/5 Feeder Assembly/ Feed out Chute652
REP 10.2 Tray 3/4/5 Paper Size Sensor654
REP 10.3 Tray 3/4/5 Feed/ Lift up Motor655
REP 10.5 Tray 3/4/5 Nudger Level Sensor/ Tray 3/4/5 no Paper Sensor656
REP 10.7 Feed Roll/ Retard Roll/ Nudger Roll657
REP 10.8 Clutch Assy. (25T)/ One-Way Clutch/ Friction Clutch658
REP 10.9 Tray Module PWB659
REP 10.10 Gear (34T)/ Gear (26T)/ Gear (39T)660
REP 10.11 TM Takeaway Motor661
REP 10.12 Tray Module L/H Cover Switch662
REP 10.13 Chute Assembly/ Tray 4/5 Feed out Sensor663
REP 10.14 Tray 3 Feed out Sensor664
REP 10.15 T/A Roll 4/5/ T/A Roll 3665
REP 10.16 Left Hand Cover Assembly666
REP 10.17 Hook/ Latch/ Handle667
REP 10.18 Left Hand Cover668
REP 10.19 Rear Cover Assembly669
REP 10.20 Top Cover/ Foot Cover670
REP 10.21 Left Cover671
REP 10.22 Right Cover672
REP 10.23 Tray Module (3T) (1500-Sheet Feeder)673
500-Sheet Feeder (Option)674
REP 11.1 Tray 3 Feeder Assembly STM/ Feed out Chute674
REP 11.2 Tray 3 Paper Size Sensor676
REP 11.3 Tray 3 Feed/ Lift up Motor677
REP 11.5 Tray 3 Nudger Level Sensor/ Tray 3 no Paper Sensor678
REP 11.7 Feed Roll/ Retard Roll/ Nudger Roll679
REP 11.8 Clutch Assy. (28T)/ One-Way Clutch/ Friction Clutch680
REP 11.9 STM T/A Motor Assembly681
REP 11.10 500-Sheet Feeder PWB682
REP 11.11 Tray 3 Feed out Sensor683
REP 11.12 L/H Cover Assembly-STM684
REP 11.13 Handle/ Latch/ Hook685
REP 11.14 STM T/A Roll Assembly686
REP 11.15 STM L/H Cover Interlock Switch687
REP 11.16 Left Cover-STM688
REP 11.17 Rear Cover-STM689
REP 11.18 Top Cover-STM/ Front Cover-STM690
REP 11.19 Tray Module (1T) (500-Sheet Feeder)691
Tray 1 (MPT)692
REP 13.1 Tray 1 Feeder Assembly692
REP 13.2 Tray 1 Head Assembly/ Tray 1 Assembly693
REP 13.3 Tray 1 Feed/ Nudger Motor694
REP 13.4 Tray 1 no Paper Sensor695
REP 13.5 Tray 1 Top Cover696
REP 13.6 Feed Roll/ Retard Roll/ Nudger Roll697
REP 13.7 Drive Roll Assembly698
REP 13.8 Tray 1 Feed out Sensor699
REP 13.9 Tray 1 Nudger Position Sensor700
REP 13.10 Tray 1 Paper Size Sensor701
REP 13.11 Extension Tray (L1)/ Extension Tray (L2)703
REP 13.12 Upper Frame Assembly704
REP 13.13 Drive Bracket Assembly706
REP 13.14 Gear (27T)/ Nudger Cam/ Actuator707
L/H Cover708
REP 14.1 Left Hand Cover Interlock Switch708
REP 14.2 2Nd BTR Assembly709
REP 14.3 L/H Cover Assembly710
REP 14.4 Pinch Chute Assembly711
REP 14.5 Duplex Chute Assembly712
REP 14.6 L/H Blind Cover713
REP 14.7 Upper Chute714
REP 14.8 Retract Shaft Assembly715
REP 14.9 2Nd BTR Contact Retract Sensor718
REP 14.10 2Nd BTR Contact Retract Motor Assy./ 2Nd BTR Contact Retract Motor720
REP 14.11 POB Sensor722
REP 14.12 Duplex Assembly723
REP 14.13 Duplex Lever/ Latch Cover724
REP 14.14 Duplex Motor/ Fan/ Gear Assembly725
REP 14.15 Inner Chute Assembly727
REP 14.16 Duplex Wait Sensor/ Actuator/ Spring728
REP 14.17 Duplex Roller 1730
REP 14.18 Duplex Roller 2731
REP 14.19 Duplex Roller 3732
REP 14.20 Duplex Cover Switch733
Registration734
REP 15.1 Takeaway Clutch734
REP 15.2 Registration Transport Assembly736
REP 15.3 Regi Clutch737
REP 15.4 Transparency Sensor738
REP 15.5 Regi Sensor/ Actuator/ Spring739
Exit741
REP 17.1 Exit Assembly741
REP 17.2 Exit Roll742
REP 17.3 Exit Motor743
REP 17.4 Full Stack Sensor/ Full Stack Sensor744
Electrical748
REP 18.1 Main Power Switch Chassis Assembly748
REP 18.2 Cam Chassis Assembly750
REP 18.3 MOB ADC Assembly751
REP 18.4 HVPS (Deve/ BCR)753
REP 18.5 Front Cover Interlock Switch754
REP 18.6 IBT Front Cover Switch755
REP 18.7 Main LVPS756
REP 18.8 LV Fan757
Rep 18.9 Gfi758
REP 18.10 PWB Chassis Unit759
REP 18.11 Backplane (BP) PWB (Interface PWB)762
Rep 18.12 Mcu Pwb764
REP 18.13 Motor Drive (MD) PWB766
REP 18.14 TM Relay PWB767
REP 18.15 Drive Fan768
Cover769
REP 19.1 Front Cover Assembly/ Inner Cover Assembly769
REP 19.2 Top Cover Assembly/ Control Panel773
REP 19.3 Tray 1 (MPT) Front Cover776
REP 19.4 Left Rear Cover777
REP 19.5 Exit Cover778
REP 19.6 Top Rear Cover/ Rear Cover779
REP 19.7 Front Left Cover780
REP 19.8 Right Cover781
ESS (Controller)782
REP 35.1 Image Processor Board (ESS PWB)782
Parts List783
Serial Number Format784
Using the Parts List786
General Overview787
Parts List 1.1 Parts Overview (1 of 5)787
Parts List 1.2 Parts Overview (2 of 5)788
Parts List 1.3 Parts Overview (3 of 5)789
Parts List 1.4 Parts Overview (4 of 5)790
Parts List 1.5 Parts Overview (5 of 5)791
Lph792
Parts List 2.1 LPH (1 of 2)792
Parts List 2.2 LPH (2 of 2)794
Drive796
Parts List 3.1 Drive (1 of 3)796
Parts List 3.2 Drive (2 of 3)798
Parts List 3.3 Drive (3 of 3)800
Nohad802
Parts List 4.1 NOHAD (1 of 3)802
Parts List 4.2 NOHAD (2 of 3)804
Parts List 4.3 NOHAD (3 of 3)806
Development808
Parts List 5.2 Development (2 of 2)810
Transfer812
Parts List 6.1 Transfer (1 of 2)812
Parts List 6.2 Transfer (2 of 2)814
Parts List 6.3 IBT Belt Unit (1 of 2)815
Parts List 6.4 IBT Belt Unit (2 of 2)817
Fuser819
Parts List 7.1 Fuser819
Xerographic820
Parts List 8.1 Xerographic (1 of 2)820
Parts List 8.2 Xerographic (2 of 2)822
Tray 2 - Tray Module (3T) (Option)824
Parts List 9.1 Tray 2 Feeder/ Tray 2824
Parts List 9.2 Tray 2826
Parts List 9.3 Tray 2 Feeder828
Parts List 9.4 Tray 2 Feeder Assembly (1 of 2)829
Parts List 9.5 Tray 2 Feeder Assembly (2 of 2)831
Tray 3/4/5 - Tray Module (3T) (Option)833
Parts List 10.1 Tray Module (3T)833
Parts List 10.3 Tray 3/4/5 Feeder Assembly (1 of 2)837
Parts List 10.4 Tray 3/4/5 Feeder Assembly (2 of 2)839
Parts List 10.9 Electrical841
Parts List 10.11 Roller843
Parts List 10.12 L/H Cover Assembly845
Parts List 10.13 Cover847
Tray Module (1T) (Option)849
Parts List 11.1 Tray Module (1T)849
Parts List 11.5 Electrical851
Parts List 11.6 L/H Cover Assembly, Roller852
Parts List 11.7 Cover854
Tray 1 (MPT)856
Parts List 13.1 Tray 1 (MPT) (1 of 5)856
Parts List 13.2 Tray 1 (MPT) (2 of 5)858
Parts List 13.3 Tray 1 (MPT) (3 of 5)860
Parts List 13.4 Tray 1 (MPT) (4 of 5)862
Parts List 13.5 Tray 1 (MPT) (5 of 5)864
L/H Cover866
Parts List 14.1 L/H Cover (1 of 2)866
Parts List 14.2 L/H Cover (2 of 2)868
Parts List 14.3 L/H Cover Assembly (1 of 2)870
Parts List 14.4 L/H Cover Assembly (2 of 2)872
Parts List 14.5 Duplex Assembly (Option) (1 of 2)874
Parts List 14.6 Duplex Assembly (Option) (2 of 2)876
Registration878
Parts List 15.1 Registration (1 of 2)878
Parts List 15.2 Registration (2 of 2)879
Exit881
Parts List 17.1 Exit881
Electrical883
Parts List 18.1 Electrical (1 of 2)883
Parts List 18.2 Electrical (2 of 2)885
Parts List 18.3 PWB Chassis Unit887
Parts List 18.4 Wire Harness889
Cover890
Parts List 19.1 Cover (Front)890
Parts List 19.2 Cover/ Control Panel892
Ess894
Parts List 35.1 ESS894
Xerox Supplies and Accessories896
Service Kits899
Plug/Jack and Wiring Diagrams901
Plug/Jack Diagrams and Designators902
Print Engine Plug/Jack Designators902
Duplex Unit Plug/Jack Designators912
Single Tray Module (STM) (Optional) Plug/Jack Designators913
Tray Unit (Optional) Plug/Jack Designators914
Plug/Jack Locators916
Map 1 - ATC Sensor, Drum CRUM, Main Power Switch, MOB ADC Assy917
Map 2 - Motor Drive (MD), MCU918
Map 3 - Image Processor Board919
Map 4 - Back Plane920
Map 5 - Back Plane, GFI, TM Relay, Fuser Fan921
Map 6 - Control Panel922
Map 7 - Clutches, Fan, HVPS (1St/2Nd/Dtc), Motors, Sensors923
Map 8 - LPH Rear Pwbs, Toner Crums, Toner Dispenser Motors924
Map 9 - Main LVPS, Waste Toner Bottle925
Map 10 - Motors, Sensors926
Map 11 - Clutch, Motor, Sensors927
Map 12 - Fuser928
Map 13 - Duplex Unit929
Map 14 - Single Tray Module (STM)930
Map 15 - 1500-Sheet Feeder931
Notations Used in the Wiring Diagrams932
General Wiring Diagrams936
General Wiring Diagram (1 of 3)936
General Wiring Diagram (2 of 3)937
General Wiring Diagram (3 of 3)938
Print Engine Wiring Diagrams939
Print Engine - Erase Lamps, Toner Crums, Fans939
Print Engine - HVPS, LVPS, NOHAD Temperature Sensor940
Print Engine - Fuser Motor, Main Motor941
Print Engine - Developer Motors, IBT Motor942
Print Engine - Exit Motor, Registration Clutch, Sensors943
Print Engine - Crums, Toner Dispenser Motors944
Print Engine - Interlock Switches, Agitator Motor, Fuser Fan945
Print Engine - MCU Board, Motor Driver Board, LPH946
Print Engine - Fans, Clutches, Sensors, 1St BTR Retract948
Print Engine - Fuser, LVPS Fan, GFI Switch949
Print Engine - LVPS and Control Panel950
Print Engine - Toner Sensors, LVPS Temperature Sensor951
Tray 1 (MPT)952
Duplex Unit Wiring Diagram953
Tray Module Wiring Diagrams954
Tray Module (TM) - Relay Board, Feed Lift Motor, Takeaway Motor954
Single Tray Module (STM) - Sensors, Feed/ Lift Motor, Cover Switch955
Tray Module (3TM) - Takeaway Motor, Sensors, Cover Switch956
Tray Module (3TM) - Sensors, Motors957
Reference959
Phaser 7500 Menu Map960
Menu Map960
Service Diagnostics Menu Map962
Service Diagnostic Tests and Utilities963
Firmware Update972
Update Firmware Via the Webui (CWIS)972
File Downloader Utility972
Obtaining Serial Back Channel Traces973
Acronyms and Abbreviations975

Xerox PHASER 7500 - Theory of Operation

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