Troubleshooting for Image Quality Problems
D0CA/D0C9/D0C8/D0CB
6-148
SM
6.12.11 REPEATED SPOTS OR LINES ON PRINTS
The same spots or lines appear at regular intervals.
Interval
Possible cause
Necessary actions
At intervals of 33.6 mm (1.32 inches)
Defective charge
roller
Replace the PCDU.
At intervals of 20.9 mm (0.82 inches)
Defective
development roller
Replace the PCDU.
At intervals from 55.0 (end) to 55.4 (center)
mm (from 2.16 to 2.18 inches)
Defective paper
transfer roller
Replace the paper transfer
roller unit.
At intervals of 75.4 mm (2.96 inches)
Defective OPC drum Replace the PCDU.
At intervals of 78.5 mm (3.09 inches)
Defective pressure
roller
Replace the pressure roller
or fusing unit.
At intervals of 78.5 mm (3.09 inches)
Defective fusing belt
Replace the fusing unit.
At intervals of 40.82 mm (1.60 inches)
Defective image
transfer roller
Replace the image transfer
roller.
6.12.12 DARK VERTICAL LINE ON PRINTS
Symptom
Possible cause
Necessary actions
A dark line in one CMY color appears. The line is
parallel to the paper feed direction.
Defective PCDU
Replace the PCDU.
A dark line in any color (not C, M, or Y) appears.
The line is parallel to the paper feed direction.
Dust in the laser
beam path
Clean the laser beam
path.
Defective image
transfer belt unit
Replace the image
transfer belt unit.
Defective fusing unit Replace the fusing
unit.
6.12.13 WHITE HORIZONTAL LINES OR BANDS
Symptom
Possible cause
Necessary actions
White lines or bands appear in
images.
Defective PCDU
Replace the PCDU.
Defective image transfer
belt unit
Replace the image transfer
belt unit.
Defective paper transfer
roller
Replace the paper transfer
roller.
Содержание D0C8
Страница 1: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL Rev 08 26 2021...
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Страница 35: ...PRODUCT INFORMATION...
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Страница 45: ...INSTALLATION...
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Страница 223: ...PREVENTIVE MAINTENANCE...
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Страница 233: ...REPLACEMENT AND ADJUSTMENT...
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Страница 245: ...Special Tools SM 4 11 D0CA D0C9 D0C8 D0CB Replacement Adjustment Output Gear 01 Output Gear 02 Paper Feed Roller Axis...
Страница 246: ...Special Tools D0CA D0C9 D0C8 D0CB 4 12 SM Transport Gear 01 A Transport Gear 02 B Transport Gear 03 C...
Страница 252: ...Special Tools D0CA D0C9 D0C8 D0CB 4 18 SM Transport Gear 03 Transport Gear 04 Transport Gear 05...
Страница 260: ...Special Tools D0CA D0C9 D0C8 D0CB 4 26 SM Paper Exit Drive Gear 02 Paper Exit Drive Gear 03 Paper Exit Idler Gear 01...
Страница 262: ...Special Tools D0CA D0C9 D0C8 D0CB 4 28 SM Paper Exit Unit Guide Junction Gate Junction Gate Lever...
Страница 264: ...Special Tools D0CA D0C9 D0C8 D0CB 4 30 SM...
Страница 276: ...Exterior Covers D0CA D0C9 D0C8 D0CB 4 42 SM 6 Remove the scanner inner cover A...
Страница 353: ...PCDU Toner Supply SM 4 119 D0CA D0C9 D0C8 D0CB Replacement Adjustment 4 Remove the toner transport section A...
Страница 442: ...Duplex D0CA D0C9 D0C8 D0CB 4 208 SM 3 Remove the right cover sensor SW2 A 1...
Страница 452: ...Electrical Components D0CA D0C9 D0C8 D0CB 4 218 SM IM C300 series IM C400F...
Страница 459: ...Electrical Components SM 4 225 D0CA D0C9 D0C8 D0CB Replacement Adjustment IM C300 series IM C400F...
Страница 501: ...SYSTEM MAINTENANCE...
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Страница 578: ...Self Diagnostic Mode D0CA D0C9 D0C8 D0CB 6 4 SM...
Страница 732: ...Troubleshooting for Other Problems D0CA D0C9 D0C8 D0CB 6 158 SM...
Страница 742: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 168 SM...
Страница 746: ...Jam Detection D0CA D0C9 D0C8 D0CB 6 172 SM Sensor Layout...
Страница 747: ...Jam Detection SM 6 173 D0CA D0C9 D0C8 D0CB Troubleshooting...
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Страница 751: ...DETAILED DESCRIPTIONS...
Страница 752: ......
Страница 754: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 2 SM IM C400F...
Страница 756: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 4 SM 7 1 2 PAPER PATH IM C300 series...
Страница 757: ...Machine Overview SM 7 5 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Страница 759: ...Machine Overview SM 7 7 D0CA D0C9 D0C8 D0CB Detailed Descriptions 7 1 3 DRIVE LAYOUT IM C300 series IM C400F...
Страница 767: ...Machine Overview SM 7 15 D0CA D0C9 D0C8 D0CB Detailed Descriptions Fusing IM C300 series IM C400 series...
Страница 772: ...Machine Overview D0CA D0C9 D0C8 D0CB 7 20 SM Electrical Parts IM C300 series IM C400 series...
Страница 797: ...Laser Unit SM 7 45 D0CA D0C9 D0C8 D0CB Detailed Descriptions...
Страница 848: ...Duplex D0CA D0C9 D0C8 D0CB 7 96 SM 7 16 DUPLEX 7 16 1 OVERVIEW IM C300 series...
Страница 849: ...Duplex SM 7 97 D0CA D0C9 D0C8 D0CB Detailed Descriptions IM C400F...
Страница 854: ...Duplex D0CA D0C9 D0C8 D0CB 7 102 SM...
Страница 855: ...Paper Exit and Inverter SM 7 103 D0CA D0C9 D0C8 D0CB Detailed Descriptions 7 17 PAPER EXIT AND INVERTER 7 17 1 OVERVIEW...
Страница 861: ...Electrical Parts SM 7 109 D0CA D0C9 D0C8 D0CB Detailed Descriptions 7 18 ELECTRICAL PARTS 7 18 1 BLOCK DIAGRAM...
Страница 864: ...Machine Ventilation D0CA D0C9 D0C8 D0CB 7 112 SM 7 19 MACHINE VENTILATION 7 19 1 OVERVIEW IM C300 series IM C400F...
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Страница 889: ...SMART OPERATION PANEL...
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Страница 959: ...D0CA D0C9 D0C8 D0CB SERVICE MANUAL APPENDICES...
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Страница 965: ...APPENDICES SPECIFICATIONS REVISION HISTORY Page Date Added Updated New 1 04 01 2020 Updated Copy Speed...
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Страница 981: ...APPENDICES PREVENTIVE MAINTENANCE TABLES...
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Страница 991: ...APPENDICES SP MODE TABLES...
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Страница 1455: ...APPENDICES SOFTWARE CONFIGURATION...
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Страница 1469: ...Scanner Features SM Appendices 4 13 D0CA D0C9 D0C8 D0CB Appendices Software Configuration...
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Страница 1491: ...FCU PCB2 D0CK 16 SM 4 Remove the left cover A 5 Remove the controller cover A with the HDD B 6 Remove the FCU PCB2 A...
Страница 1552: ...Bit Switches 3 SM 77 D0CK...
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Страница 1614: ...Rear Cover SM 9 D3GQ 2 2 REAR COVER 1 Remove the rear cover A...
Страница 1615: ...Upper Cover D3GQ 10 SM 2 3 UPPER COVER 1 Remove the machine from the optional tray 2 Remove the upper cover A...
Страница 1617: ...Controller Board PCB1 D3GQ 12 SM 2 Remove the rear stay A 3 Remove the controller board PCB1 with the bracket A...
Страница 1622: ...Vertical Transport Rollers SM 17 D3GQ 6 Remove the vertical transport roller Driving side A Bearing 1...
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