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Xerox 7700DX Service Manual - Page 102

FINISHER ERROR 111 STAPLER MOVE SENSOR ON, FAILURE, Error, Chain, Front Panel Message

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Error Code Chain / Link Front Panel Message 111 12-241 FINISHER ERROR 111 STAPLER MOVE SENSOR ON 112 12-242 FAILURE FINISHER ERROR 112 STAPLER MOVE SENSOR OFF FAILURE Open the Finisher Front Door. Defeat the Front Door Interlock Switch. Enter Service Diagnostics Mode. Run the Stapler "Move Front, Move Rear" and "Reverse" tests to verify the movement of the Stapler Carriage Assembly. Does the Stapler Carriage Assembly move smoothly through its full range of travel? Yes No Refer to the Finisher Troubleshooting Procedures to troubleshoot this problem. Inspect the Stapler Move Sensor for damage and secure mounting. Is the sensor in good condition and secure? Yes No Repair or replace the sensor. Remove the Finisher Rear Cover (RRP 42, on page 7-206) and the Board Cover (RRP 42, on page 7-206). Measure the voltage between Finisher Board connector P852-7 (see figure page 2-46) and Finisher frame ground while interrupting the Move Sensor. Does the voltage toggle between 0 VDC and +5 VDC? Yes No Measure the voltage at Finisher Board connector P852-8 (see figure page 2-46). Does the voltage measure +5 VDC? Yes No Replace the Finisher Control Board. Measure the voltage at Finisher Board connector P852-6 (see figure page 2-46). Does the voltage measure 0 VDC? Yes No Replace the Finisher Control Board. Replace the Move Sensor. Replace the Finisher Control Board. If the problem persists, replace Printer Engine Control Board (RRP 42, on page 7-206). If the problem continues to persist, verify the ground continuity between Finisher frame ground and Printer frame ground. 2-72 Phaser 7700 Color Laser Printer Service Manual

Section	Page
Phaser 7700 Service Manual	3
User Safety Summary	5
Terms in Manual	5
Terms on Product	5
Power Source	6
Power Supply and Electrical Components	6
Mechanical Components	6
Laser Components	7
Fuser Components	7
Safety Components	7
Warning Labels	7
Safety Instructions	8
Care of Product	8
Ground the Product	8
Service Safety Summary	9
General Guidelines	9
Class 1 Laser Product	9
Federal Communication Commision Compliance	10
Canadian Notice	11
Avis Canadien	11
European Notice	11
Hinweis	11
ESD Precautions	12
Figure 1-1 The Phaser 7700 Color Laser Printer (shown with the High-Capacity Feeder)	31
Phaser 7700 Printer Overview	32
Phaser 7700 Printer Overview	32
Printer RAM and Printer Capabilities	34
CRC Life Counter Behavior	35
Table 1-1 CRC Life	35
Engine Control Interface and Power Supply Boards	36
Figure 1-2 Engine Control Interface and Power Supply Boards	36
Power Supplies	37
Figure 1-3 Power Supplies	37
Engine Control and Image Processor Boards	38
Figure 1-4 Engine Control and Image Processor Boards	38
Auxiliary Feeder Control Board	39
Figure 1-5 Auxiliary Feeder Control Board	39
Print Engine Sensors and Switches	40
Figure 1-6 Print Engine Sensors and Switches	40
Print Engine Sensors and Switches (cont’d.)	41
Figure 1-7 Print Engine Sensors and Switches (cont’d.)	41
Auxiliary Feeder Sensors and Switches	42
Figure 1-8 Auxiliary Feeder Sensors and Switches	42
Auxiliary Feeder Actuators and Clutches	43
Figure 1-9 Auxiliary Feeder Actuators and Clutches	43
Print Engine Solenoids, Actuators, and Clutches	44
Figure 1-10 Print Engine Solenoids, Actuators, and Clutches	44
Print Engine and Auxiliary Feeder Interlocks and Sensors	45
Figure 1-11 Print Engine and Auxiliary Feeder Interlocks and Sensors	45
Image Processor Board	46
Figure 1-12 Image Processor Board	46
Assemblies of the Print Engine	47
Figure 1-13 Assemblies of the Print Engine	47
Assemblies of the Print Engine (cont’d.)	48
Figure 1-14 Assemblies of the Print Engine (cont’d.)	48
Assemblies of the Print Engine (cont’d.)	49
Figure 1-15 Assemblies of the Print Engine (cont’d.)	49
Auxiliary Feeder Assemblies	50
Figure 1-16 Auxiliary Feeder Assemblies	50
Front Panel Description	51
LED indicators	51
Figure 1-17 Front Panel	51
Table 1-2 Front Panel Key Descriptions	51
Front Panel Shortcuts	52
Table 1-3 Front Panel Shortcuts	52
Rear Panel	53
Connectors	53
Figure 1-18 Printer Rear Connections	53
Table 1-4 Rear Panel DIP Switch Settings	53
Printer Specifications	54
Physical Dimensions and Clearances	54
Table 1-5 Physical Dimensions of the Printer	54
Table 1-6 Physical Dimensions of Lower Tray Feeder	54
Figure 1-19 Printer Clearances	54
Table 1-7 Functional Specifications	55
Table 1-8 Electrical Specifications	55
Table 1-9 Environmental Specifications	56
Supported Paper Weights, Page Sizes and Print Area	57
Table 1-10 Specialty Paper	58
Table 1-11 Print Area	58
Error Messages	61
Troubleshooting Error Codes	61
Chain / Link	61
Where do they come from?	61
Why are they here?	61
Diagnostics, Error Codes, and Messages	61
Error Messages	61
Troubleshooting Error Codes	61
System Boot Sequence	62
Power On Self Test (POST)	62
POST Faults	63
Fault Reporting Devices	63
LED Blink Patterns	63
POST Diagnostics Test Descriptions	64
Table 2-1 POST Diagnostics Test Descriptions	64
Service Diagnostics	65
Entering Service Diagnostics Mode	65
Service Diagnostics Test Menu Functions	66
Table 2-2 Service Diagnostics Test Menu Functions	66
Error Codes and Messages Troubleshooting	76
Voltage Measurements	76
Figure 2-1 Voltage Measurement Point Locations	76
Fuser Connector Pin Locations	77
Fig 2-2 Fuser Connector Pin Locations	77
Troubleshooting Network Problems	118
Operating System and Application Problems	118
Media Jams and the Paper Path	118
Print Image Quality Problems	118
Troubleshooting Power Supplies and Interlocks	119
Troubleshooting AC Power	119
Troubleshooting the Low-voltage Power Supplies	119
Troubleshooting Power Supplies and Interlocks	119
Troubleshooting AC Power	119
Troubleshooting Low-Voltage Power Supplies	119
Troubleshooting the +3.3 VDC and +5 VDC LVPS	120
Troubleshooting the +24 VDC LVPS	120
Interlock Circuit Diagram	121
Figure 3-1 Circuit Diagram	121
The +24 VDC Interlock Circuit	121
The +5 VDC Interlock Circuit	122
Troubleshooting When the Printer Does Not Come to a “Ready” State	123
Printer Does Nothing When Power Switched On	123
Fans On, Front Panel LED Never On	123
Fans On, Front Panel LED is Red, No Front Panel message	123
Front Panel Continually Displays the Xerox Phaser 7700 Splash Screen	123
Front Panel Continually Displays \	123
Front Panel displays \	124
Troubleshooting - Printer Comes to a “Ready” State	124
False LH Door, RH Door, or Front Door Open Messages	124
False \	124
False \	124
Tray 1 Will Not Lift	125
Tray 2, 3 or 4 Will Not Lift	125
Tray 2, 3 and 4 Will Not Lift or Printer Will Not Recognize the Auxiliary Feeder	126
Printer Will Not Recognize the Finisher	126
Troubleshooting the Toner Dispense/Auger/Developer System	127
Checking the Toner Cartridge	127
Figure 3-2 Toner Cartridge Gear	127
Checking the Toner Auger System	128
Figure 3-3 Toner Cartridge	128
Figure 3-4 Toner Dispense Assembly	129
Figure 3-5 Toner Port	130
Checking the Developer ATC Sensor	131
Checking the Developer	132
Tips	132
Figure 3-6 Developer Housing	133
Operation System and Application Problems	134
Macintosh Printing Problems	134
Windows Printing Problems	134
Media Jams and the Paper Path	136
Media-based Problems	136
Multiple-sheet Pick	136
Mis-pick	136
Skewed Image	136
Damaged Prints	137
Fuser Jams	137
Exit Jams	137
Print Image Quality Problems	138
Light (undertone) Prints (all colors)	138
Blank Prints	138
One Color is Faded or Missing	139
Missing Band in Direction of Paper Travel	140
Streaks in Direction of Paper Travel	141
Streaks Parallel with the Leading Edge	142
Random Missing Spots	143
Random Spotting	143
Single Color	143
All Colors	144
Repetitive Mark Appears on Each Print	144
Background Contamination	145
Unfused Image or Image Easily Rubs Off of Page	146
Toner on Back of Print	147
Print is Mottled	148
Image Mis-registered on Paper	149
Residual Image or Ghosting	150
Light Bands, Dark Bands, or Mottled Prints	151
Adjustments and Calibration	153
Internal Hard Drive	153
Registration Control (RegiCon) Adjustment Overview	154
Coarse RegiCon Initialization	154
Figure 4-1 Coarse RegiCon Initialization	154
Coarse and Fine Skew Adjustments	155
Figure 4-2 Coarse and Fine Skew Adjustments	155
In/Out Skew Adjustment	155
Figure 4-3 In/Out Skew Adjustment	155
Center Skew Adjustment	156
Figure 4-4 Center Skew Adjustment	156
Processes of the RegiCon Adjustment	157
Check Print-quality	157
Preparation for RegiCon	157
Registration Control Procedures	160
RegiCon Flowchart	163
Figure 4-5 RegiCon Flowchart	163
Step 1: Belt Edge Learn	164
Step 2: RegiCon #4 Coarse Skew Adjustment	165
Step 3: RegiCon #1 Fine Skew Adjustment	167
Step 4: RegiCon #2 In/Out Skew Adjustment	168
Step 5: RegiCon #3 Center Skew Adjustment	169
Coarse RegiCon Initialization	170
Figure 4-6 Grid 1-Dot Pattern Orientation for A-size Paper	170
Figure 4-7 Grid 1-Dot pattern annotations	171
ATC Sensor Setup	172
Additional Information	172
Cleaning and Maintenance	173
Service Preventive Maintenance Procedure	173
Recommended Tools	173
Cleaning	173
Resetting NVRAM	175
PostScript NVRAM Resets	175
Restore Factory Settings (color)	175
Restore Previous Settings (color)	175
Restore Factory Settings (margins)	176
Reset Calibrations (color, margins, paper)	176
Resetting All Printer Default Settings (NVRAM)	176
Resetting Engine NVRAM	176
Resetting Job Defaults	177
Resetting Network Setup Values to Default	177
Resetting Accumulator Belt Life	177
Resetting Belt Cleaner Assembly Life	178
Resetting Transfer Roller Life	178
Service Diagnostics NVRAM Resets	179
PostScript NVRAM Reset	179
Clear Tech Rep Faults	179
Reset CRU Life Counters	179
Reset Engine NVRAM	180
Store Engine NVRAM	180
Removal and Replacement Procedures	181
Contents	182
RRP 1 Rear Cover Assembly	184
Figure 7-1 Rear Cover Assembly	184
RRP 2 Right Side Cover Assembly	185
Figure 7-2 Right Side Cover Assembly	185
RRP 3 Top Cover Assembly	186
Figure 7-3 Top Cover Assembly	186
RRP 4 Front Panel Assembly	187
Figure 7-4 Control Panel Assembly	187
RRP 5 Rear Cover, Top Rear Power Switch Cover and LH Rear Mid Cover	188
Figure 7-5 Top Rear Power Switch Cover and Left-Hand Rear Mid Cover	188
RRP 6 Left-Hand Lower Cover Assembly	190
Figure 7-6 Left-Hand Lower Cover Assembly	190
RRP 7 Front Cover Assembly	191
Figure 7-7 Front Cover Assembly	191
RRP 8 Fuser Front Cover	192
Figure 7-8 Fuser Front Cover	192
RRP 9 Rear Shield	193
Figure 7-9 Rear Shield	193
RRP 10 Rear Shield Bracket	194
Figure 7-10 Rear Shield Bracket	194
RRP 11 24 VDC Power Supply Shield	195
Figure 7-11 24 VDC Power Supply Shield	195
RRP 12 Multi-Purpose Tray (MPT) Assembly	196
Figure 7-12 MPT Assembly	196
RRP 13 Multi-Purpose Tray Paper Pick Rollers	197
Figure 7-13 Multi-Purpose Tray Pick Rollers	197
RRP 14 Left-Hand Cover Assembly (Left-Hand Door)	198
Figure 7-14 Left-Hand Cover Assembly (Left-Hand Door)	198
Figure 7-15 Damper Teeth Alignment	199
RRP 15 Duplex Chute	200
Figure 7-16 Duplex Chute	200
RRP 16 Duplex Unit Assembly	201
Figure 7-17 Duplex Unit Assembly	201
RRP 17 Transfer Roller Assembly (2nd BTR)	202
Figure 7-18 Transfer Roller Assembly (2nd BTR)	202
RRP 18 Duplex Transport Assembly	203
Figure 7-19 Inverter Transport Assembly	203
RRP 19 Fuser Unit	204
Figure 7-20 Fuser Unit	204
RRP 20 Registration Transport Assembly	205
Figure 7-21 Registration Transport Assembly	205
RRP 21 Shutter Solenoid Assembly	206
Figure 7-22 Shutter Solenoid Assembly	206
RRP 22 Tray 1 Feeder Assembly and Paper Lift Motor	207
Figure 7-23 Tray 1 Feeder Assembly	207
RRP 23 Waste Cartridge Sensor Holder	208
Figure 7-24 Waste Cartridge, Waste Cartridge Cover and Waste Cartridge Sensor Holder	208
RRP 24 Print Cartridge Plate Cover	209
Figure 7-25 Print Cartridge Plate Cover (plastic)	209
RRP 25 Dispense Assembly	210
Figure 7-26 Dispense Assembly	210
RRP 26 Print Cartridge Plate Assembly	212
Figure 7-27 Print Cartridge Plate Assembly	212
Figure 7-28 Print Cartridge Plate Assembly (cont’d.)	213
RRP 27 Developer Housing Assembly	215
Figure 7-29 Developer Housing Assembly	215
RRP 28 New Developer Housing Assembly Charging	216
Figure 7-30 Developer Housing Assembly Recharge	216
RRP 29 Toner Dispense Motor Assembly	218
Figure 7-31 Toner Dispense Motor Assembly	218
RRP 30 Steering Drive Assembly	219
Figure 7-32 Steering Drive Assembly	219
RRP 31 Waste Toner Agitator Motor Assembly	220
Figure 7-33 Waste Toner Agitator Motor Assembly.	220
RRP 32 Mark-On-Belt (MOB) Sensor	221
Figure 7-34 Mark-On-Belt Sensor	221
RRP 33 Exit Transport Assembly	222
Figure 7-35 Exit Transport Assembly	222
Figure 7-36 Reconfigured Inverter	223
Figure 7-37 Parts No Longer Installed	223
Figure 7-38 Interlock Actuator and Spacers	224
RRP 34 Fuser Fan Assembly	225
Figure 7-39 Fuser Fan Assembly	225
RRP 35 Accumulator Belt Assembly	226
Figure 7-40 Accumulator Belt Assembly	226
RRP 36 Belt Cleaner Assembly	228
Figure 7-41 Belt Cleaner Assembly	228
RRP 37 Waste Auger Assembly	229
Figure 7-42 Waste Auger Assembly	229
RRP 38 Laser Unit	230
Figure 7-43 Laser Unit Assembly	230
Figure 7-44 Laser Unit Label	231
RRP 39 Image Processor Board Assembly	232
Figure 7-45 Image Processor Board Assembly.	232
RRP 40 Internal Hard Drive	233
Figure 7-46 Internal Hard Drive	233
RRP 41 Electrical Chassis (Card Cage) Assembly	234
Figure 7-47 Electrical Chassis Assembly	234
RRP 42 Engine Control Board	236
Figure 7-48 Engine Control Board	236
RRP 43 Engine Control Interface Board	237
Figure 7-49 Engine Control Interface Board	237
RRP 44 T1 and T3 High-voltage Power Supplies	238
Figure 7-50 T1 and T3 High-voltage Power Supplies	238
RRP 45 3.3 VDC and 5 VDC Low-Voltage Power Supplies and Bracket	240
Figure 7-51 3.3 VDC and 5 VDC Low-Voltage Power Supplies	240
RRP 46 LD Power Relay	241
Figure 7-52 LD Power Relay	241
RRP 47 +24 VDC Low-voltage Power Supply, Fan and Bracket	242
Figure 7-53 Low-voltage Power Supply, Fan and Bracket	242
RRP 48 T2 High-Voltage Power Supply	243
Figure 7-54 T2 High-Voltage Power Supply	243
RRP 49 Chassis AC Power Assembly	244
Figure 7-55 Chassis AC Power Assembly	244
RRP 50 Main Drive Assembly	245
Figure 7-56 Main Drive Assembly	245
RRP 51 Accumulator Belt Drive Assembly	247
Figure 7-57 Accumulator Belt Drive Assembly	247
RRP 52 Developer Drive Assembly	248
Figure 7-58 Developer Drive Assembly	248
RRP 53 Print Cartridge Drive Assembly	249
Figure 7-59 Print Cartridge Drive Assembly	249
RRP 54 Tray 1 Paper-Select Switches	250
Figure 7-60 Tray 1 Paper-Select Switches	250
RRP 55 Main Lever Assembly Right and Left-Hand Jacks	251
Figure 7-61 Main Lever, Right-Hand and Left-Hand Jacks	251
Figure 7-62 Lift Pin Alignment	253
Figure 7-63 Cover Screw Location	253
Figure 7-64 Cover Removed	254
Figure 7-65 Tension Spring Location	254
Figure 7-66 Front and Rear Gears Aligned	254
RRP 56 Auxiliary Feeder Covers	255
Figure 7-67 Auxiliary Feeder Covers	255
RRP 57 Auxiliary Feeder Cover Assembly	256
Figure 7-68 High-Capacity Feeder (HCF) Cover Assembly	256
RRP 58 High-Capacity Feeder (HCF) Tray 3	257
Figure 7-69 High-Capacity Feeder (HCF) Tray 3	257
RRP 59 High-Capacity Feeder (HCF) Tray 4 and Paper Transport	258
Figure 7-70 High-Capacity Feeder (HCF) Tray 4 and Paper Transport	258
RRP 60 Auxiliary Feeder Control Boards	259
Figure 7-71 LTD Control or HCF Control Board	259
RRP 61 Auxiliary Feeders Motor Assemblies	260
Figure 7-72 Transport Motor Assembly	260
RRP 62 Auxiliary Feeder Paper-Select Switches	261
Figure 7-73 Paper-Select Switches	261
RRP 63 Auxiliary Feeder Paper Feed Motor Assembly	262
Figure 7-74 Paper Feed Motor Assembly and Chute (LTA & HCF)	262
RRP 64 Bracket Assembly, Left-Hand and Right-Hand Gear (HCF)	263
Figure 7-75 Bracket Assembly, Gear RH & Gear LH (HCF)	263
FRU Parts List	265
PL 8-1 Accumulator Belt FRUs	266
Figure 8-1 Accumulator Belt FRUs	266
Table 8-1 Accumulator Belt FRUs List	266
PL 8-2 Left-Hand Door FRUs	267
Figure 8-2 Left-Hand Door FRUs	267
Table 8-2 Left-Hand Door FRUs List	268
PL 8-3 Media Trays FRUs	269
Figure 8-3 Media Trays FRUs	269
Table 8-3 Media Trays FRUs List	269
PL 8-4 Duplex Unit FRUs	270
Figure 8-4 Duplex Unit FRUs	270
Table 8-4 Duplex Unit FRUs List	270
PL 8-5 Cover FRUs	271
Figure 8-5 Cover FRUs	271
Table 8-5 Cover FRUs List	271
PL 8-6 Cover FRUs (cont’d.)	272
Figure 8-6 Cover FRUs (cont’d.)	272
Table 8-6 Cover FRUs (cont’d.) List	272
PL 8-7 Cover FRUs (cont’d.)	273
Figure 8-7 Cover FRUs (cont’d.)	273
Table 8-7 Covers FRUs List (cont’d.)	274
PL 8-8 Switch and Sensor FRUs	275
Figure 8-8 Switch and Sensor FRUs	275
Table 8-8 Switch and Sensor FRUs List	276
PL 8-9 Switch and Sensor FRUs (cont’d.)	277
Figure 8-9 Switch and Sensor FRUs (cont’d.)	277
Table 8-9 Switch and Sensor FRUs List (cont’d.)	278
PL 8-10 Circuit Boards FRUs	279
Figure 8-10 Circuit Boards FRUs	279
Table 8-10 Circuit Board FRUs List	280
PL 8-11 Power Supplies FRUs	281
Figure 8-11 Power Supplies FRUs	281
Table 8-11 Power Supplies FRUs List	282
PL 8-12 Power Supplies FRUs (cont’d.)	283
Figure 8-12 Power Supplies FRUs (cont’d.)	283
Table 8-12 Power Supplies FRUs List (cont’d.)	284
PL 8-13 Motors/Drivers FRUs	285
Figure 8-13 Motors/Drivers FRUs	285
Table 8-13 Motors / Drivers FRUs List	286
PL 8-14 Electrophotographic Components FRUs	287
Figure 8-14 Electrophotographic Components FRUs	287
Table 8-14 Electrophotographic Components FRUs List	288
PL 8-15 Electrophotographic Components FRUs (cont’d.)	289
Figure 8-15 Electrophotographic Components FRUs (cont’d.)	289
Table 8-15 Electrophotographic Components FRUs List (cont’d.)	290
PL 8-16 Multi-Purpose Tray FRUs	291
Figure 8-16 Multi-Purpose Tray FRUs	291
Table 8-16 Multi-Purpose Tray (MPT) FRUs List	292
PL 8-17 Paper Feed FRUs	293
Figure 8-17 Paper Feed FRUs	293
Table 8-17 Paper Feed FRUs List	294
PL 8-18 Paper Feed FRUs (cont’d.)	295
Figure 8-18 Paper feed FRUs (cont’d.)	295
Table 8-18 Paper Feed FRUs List (cont’d.)	296
PL 8-19 Fans FRUs	297
Figure 8-19 Fans FRUs	297
Table 8-19 Fans FRUs List	297
PL 8-20 Lift Components FRUs	298
Figure 8-20 Lift Components FRUs	298
Table 8-20 Lift Components FRUs List	299
PL 8-21 Wiring FRUs	300
Figure 8-21 Wiring FRUs	300
Table 8-21 Wiring FRUs List	301
PL 8-22 Auxiliary Feeder FRUs	302
Figure 8-22 Auxiliary Feeder FRUs	302
Table 8-22 Auxiliary Feeders FRUs List	303
PL 8-23 Lower Tray Deck (LTD) FRUs	304
Figure 8-23 Lower Tray Deck (LTD) FRUs	304
Table 8-23 Lower Tray Deck (LTD) FRUs List	305
PL 8-24 Lower Tray Deck (LTD) FRUs (cont’d.)	306
Figure 8-24 Lower Tray Deck (LTD) FRUs (cont’d.)	306
Table 8-24 Lower Tray Deck (LTD) FRUs List (cont’d.)	306
PL 8-25 High-Capacity Feeder FRUs	307
Figure 8-25 High-Capacity Feeder FRUs	307
Table 8-25 High-Capacity Feeder FRUs List	307
PL 8-26 High-Capacity Feeder FRUs (cont’d.)	308
Figure 8-26 High-Capacity Feeder FRUs (cont’d.)	308
Table 8-26 High-Capacity Feeder FRUs List (cont’d.)	308
PL 8-27 High-Capacity Feeder FRUs (cont’d.)	309
Figure 8-27 High-Capacity Feeder FRUs (cont’d.)	309
Table 8-27 High-Capacity Feeder FRUs List (cont’d.)	309
PL 8-28 High-Capacity Feeder FRUs (cont’d.)	310
Figure 8-28 High-Capacity Feeder FRUs (cont’d.)	310
Table 8-28 High-Capacity Feeder FRUs List (cont’d.)	310
PL 8-29 High-Capacity Feeder FRUs (cont’d.)	311
Figure 8-29 High-Capacity Feeder FRUs (cont’d.)	311
Table 8-29 High-Capacity Feeder FRUs (cont’d.)	311
Kits	312
Table 8-30 Kits	312
Manual Packs & Service Manual	313
Table 8-31 Manual Packs & Service Manual	313
Software	314
Table 8-32 Software	314
Supplies and Accessories	314
Table 8-33 Supplies	314
Table 8-34 Accessories	315
Recommended Service Tools	315
Table 8-35 Recommended Tools List	315
Test Prints	317
Analyzing the Test Print	318
Print Color Test Prints	319
Interpreting Solid Fill Test Prints	320
Diagnostics Mode	321
Laser Check	321
Halftones	321
Grid 1-dot	322
Fast Scan 8	323
Wiring Diagrams	325
Phaser 7700 Finisher	343
Figure 11-1 Phaser 7700 Color Laser Printer with the Finisher Option	343
Finisher Overview	344
General Information	345
Table 11-1 Finisher Specifications	345
Figure 11-2 Dimensions of the Finisher	345
Assemblies of the Finisher	347
Figure 11-3 Assemblies of the Finisher	347
Internal Assemblies of the Finisher	348
Figure 11-4 Internal Assemblies of the Finisher	348
Horizontal Transport Sensor, Interlock, and Switch Locator Map	349
Figure 11-5 Horizontal Transport Sensor, Interlock and Switch Locator Map	349
Finisher Sensor, Interlock, and Switch Locator Map	350
Figure 11-6 Finisher Sensor, Interlock, and Switch Locator Map	350
Finisher Sensor, Interlock, and Switch Locator Map	351
Figure 11-7 Finisher Sensor, Interlock, and Switch Locator	351
Removal and Replacement Procedures	353
RRP 66 Horizontal Transport Assembly	354
Figure 11-8 Horizontal Transport Assembly	354
RRP 67 Horizontal Transport Top Open, Front, and Rear Cover	355
Figure 11-9 H-Transport Top Open, Front and Rear Covers	355
RRP 68 Horizontal Transport Entrance Upper Cover Assembly	356
Figure 11-10 Horizontal Transport Entrance Upper Cover	356
RRP 69 Horizontal Transport Belts	357