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Lexmark Optra C710 Service Manual - Page 213

Duplex Tests, Quick Test, Duplex Feed 1

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5016-001 Duplex Tests Quick Test To run the Quick Test: 1. Enter Diagnostic Mode. 2. Select Duplex Tests from the menu. 3. Select Quick Test. The printer prints one sheet of the Quick Test Page and feeds it through the duplex option. Duplex Feed 1 To run the Duplex Feed 1 test: 1. Enter Diagnostic Mode. 2. Select Duplex Tests from the menu. 3. Select Duplex Feed 1 from the menu. The printer feeds one blank sheet through the duplex option. 4. To exit this test, press Go, Return or Stop. Duplex Feed 2 To run the Duplex Feed 2 test: 1. Enter Diagnostic Mode. 2. Select Duplex Tests from the menu. 3. Select Duplex Feed 2 from the menu. The printer feeds one blank sheet through the duplex option. 4. To exit this test, press Go, Return or Stop. Diagnostic Aids 3-15

Section	Page
Notices and Safety Information	9
Laser Notices	9
1. General Information	25
Models	26
Standard Features	26
Tools Required For Service	30
Options	31
Operational Theory	32
Interlock Mechanism	32
Sheet Bypass Paper Feed Unit	33
Paper Feed Unit	35
Second Paper Feed Unit (Optional Paper Trays)	37
Drive Block	41
Contact Cam	42
Coupling Unit	43
Carriage Unit	45
Toner Cartridge Unit	46
Intermediate Transfer Unit	48
Fuser/Paper Exit Unit	51
Detecting New Cleaning Unit	52
Duplex Unit (Option)	53
2. Diagnostic Information	67
Start	67
Service Error Codes	68
User Status Messages	73
User Attendance Messages	79
Symptom Tables	94
Base Printer Symptom Table	94
Covers Interlock Symptom Table	95
Duplex Unit Symptom Table	95
Operator Panel Symptom Table	96
Paper Feed Symptom Table	96
Paper Tray Options Symptom Table	97
Power Symptom Table	97
Print Quality Symptom Table	98
Service Checks	100
Base Printer Service Checks	101
Bypass Tray (Multipurpose Tray) Service Check	101
Carriage Unit Service Check	105
Coupling Unit Service Check	108
Cover Interlock Service Check	111
Developer/Paper Feed Motor Service Check	114
Erase Lamp Service Check	116
Fuser Cold Service Check	117
Fuser Drive and Contact Cam System Service Check	119
Fuser Hot Service Check	123
High Voltage Leakage Detect Service Check	124
ITM Drive Service Check	126
Main Fan Service Check	128
New Toner Cartridge Detection Service Check	129
Operator Panel Service Check	130
Operator Panel Buttons Service Check	131
OPC Drive Service Check	132
Paper Exit Sensor Service Check	133
Paper Feed Service Check	134
Parallel Port Service Check	137
Power Service Check	138
Printhead Service Check	143
Print Quality Service Checks	145
Print Quality Initial Service Check	145
All Black or Color Page Service Check	146
All Blank Page Service Check	147
Background Service Check	148
Black, Color Lines or Bands Service Check	149
Black or Color Spots Service Check	150
Developer Drive System Service Check	150
Evenly Spaced Horizontal Lines/Marks Service Check	151
Foggy Background Service Check	152
Low Image Density Service Check	153
Offset Print Service Check	154
Poor Color Reproduction Service Check	155
Random Marks Service Check	156
Residual Image Service Check	156
Skew Service Check	157
Toner on Backside of Page Service Check	157
Uneven Print Density Service Check	158
White Lines or Bands Service Check	158
White Spots Service Check	160
White/Black Lines Service Check	161
Serial Port Service Check	162
Toner Level Detect Service Check	162
Toner Low/Empty Sensor Service Check	163
Transfer Roll Service Check	164
Tray 1 (Integrated Tray) Service Check	165
Options Service Checks	172
Flash Memory Option(s) Service Check	172
DRAM Memory Option(s) Service Check	172
Hard Disk Option Service Check	173
Network Card Option Service Check	174
250/250 Dual Paper Tray Service Check	174
250/250 Paper Tray Symptom Table	175
Duplex Unit Option Service Check	186
3. Diagnostic Aids	199
Print Quality Test Pages	199
Paper Jam Sequence	199
Disabling Download Emulations	201
Diagnostics Menu Structure	201
Diagnostic Mode	202
Print Registration	204
Print Tests	206
Print Quality Test Pages	207
Hardware Tests	208
LCD Test	208
Button Test	208
Parallel Wrap Test	209
ROM Memory Test	210
SDRAM Memory Test	211
Serial Wrap Test	212
Duplex Tests	213
Quick Test	213
Duplex Feed 1	213
Duplex Feed 2	213
Device Tests	214
Quick Disk Test	214
Disk Test/Clean	215
Flash Test	216
Printer Setup	217
Setting the Page Count	217
Viewing the Permanent Page Count	217
Serial Number	217
Setting Configuration ID	218
Laser Power	219
Parallel Strobe Adjustment	219
Error Log	220
Viewing the Error Log	220
Clearing the Error Log	220
Restore EP Factory Defaults	220
Exiting Diagnostic Mode	221
4. Repair Information	223
Handling ESD-Sensitive Parts	223
Cover Removals	224
Cartridge Cover Removal	225
Front Cover Removal	225
Fuser Cover Removal	225
Left Side Cover Removal	225
Operator Panel Cover Removal	225
Rear Cover Removal	225
Right Side Cover Removal	226
Top Cover Removal	226
Top (Small) Cover Removal	226
Right Side Removals	227
Carriage Drive Motor Removal	228
Coupling Drive Motor Removal	229
Developer Drive Motor Assembly Removal	229
Fuser Drive Motor Removal	230
OPC Drive Motor Removal	231
Cam Sensor Removal	231
LVPS Assembly Removal	232
Main Fan Removal	234
Main Fan Mounting Bracket Removal	234
Motor Mounting Stay C Assembly Removal	235
OPC Coupling Drive Block Assembly Removal	236
Solenoid Removal	236
Left Side Removals	237
Grid Block 1 Assembly Removal	238
Grid Block 2 Assembly Removal	239
Cable Cover 3 Removal	240
Cover Interlock Switch Removal	240
Micro Switch Removal	240
Electronics Removals	241
Controller Board Assembly Removal	241
Engine Board Assembly Removal	241
HVPS Board Assembly Removal	242
Interconnect Board Assembly Removal	243
On/Off Coupling Sensor Board Removal	243
Paper Sensor Board	243
Resist Sensor Board Removal	244
Waste Toner Board Assembly Removal	244
Fuser Unit	245
Fuser Unit Removal	245
Fuser Lamp Removal	245
Thermistor and Thermostat Removal	245
Main Body	246
Paper Feed Block Assembly Removal	246
Printhead Removal	246
Print Cartridge Carousel Removal	247
Carriage Home Position Sensor Removal	248
Registration Roll Removal	249
5. Connector Locations	251
Engine Board	251
LVPS (Low Voltage Power Supply)	253
Erase Lamp Board	253
TRAY 1 Sensor Board	253
TRAY 1 Registration Sensor Board	254
Waste Toner Sensor Board	254
Belt Position Sensor Board	255
Connector Locations for Options	256
2nd Paper Option (250/250 Paper Option)	256
2nd Paper Option (250/250 Paper Option)	257
LVPS (Internal 2nd Tray Option)	257
Duplex Unit Option	258
LVPS (Internal Automatic Duplex Option)	259
Electrical Components	260
Sensor/Switch Locations	260
Printer Circuit Board Locations	263
Fan/Motor Locations	263
Solenoid/Clutch Locations	264
250/250 Paper Tray Option	265
Duplex Option	265
Cable Connections	266
6. Preventive Maintenance	269
Safety Inspection Guide	269
Service Precautions	269
Cleaning Procedures	269
Lubrication Specifications	269
7. Parts Catalog	271
How To Use The Parts Catalog	271
Index	355