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Test pattern check
Possible cause/Countermeasure
White image, Abnormal image, Low
density
• Defective laser optics housing unit shutter
• Defective image processing unit
• Low density of test pattern
• Defective BICU
1. Replace the shutter motor.
2. Replace the high voltage power supply unit.
3. Do the forced process control (SP3-011-001) or supply
some toner (SP3-015-xxx).
4. Replace the BICU.
Normal image, but with color
registration errors
• Defective ID sensor shutter
• Defective ID sensor
• Defective BICU
1. Replace the ID sensor shutter solenoid.
2. Replace the ID sensor.
3. Replace the BICU.
After Executing SP2-111-003
• Result: "1" in SP2-194-007
• One of results: "5" (Out of adjustable range) in SP2-194-010, -011, -012.
Test pattern check
Possible cause/Countermeasure
The main scan registrations of M, C, Y
are shifted by more than ±15 mm from
the main scan registration of K.
• Defective laser optics housing unit
• Defective BICU
1. Replace the laser optics housing unit.
2. Replace the BICU.
The sub scan registrations of M, C, Y
are shifted by more than ±20 mm from
the sub scan registration of K.
• Defective image transfer belt
• Defective drive units
• Defective BICU
1. Replace the image transfer belt.
2. Replace the drum motor.
3. Replace the BICU.
5. Appendix: Troubleshooting Guide
122
5
Содержание MPC 2800 AT-C2
Страница 1: ...Model AT C2 Machine Code D023 D025 Field Service Manual July 2008 Subject to change...
Страница 2: ......
Страница 16: ...Overview Component Layout 1 Product Information 14 1...
Страница 125: ...6 Attach the on standby decal O to the right hand side of the main power switch Anti Condensation Heater Type A 123 2...
Страница 152: ...2 Installation 150 2...
Страница 156: ...3 Preventive Maintenance 154 3...
Страница 171: ...Left Cover 1 Left cover A x 6 Rear Cover 1 Rear cover A x 8 Exterior Covers 169 4...
Страница 176: ...3 Ozone filters A in the right top cover 4 Replacement and Adjustment 174 4...
Страница 243: ...3 Toner transport motor A x 3 x 1 Toner Collection Unit 1 Gear Unit p 228 Drive Unit 241 4...
Страница 249: ...6 Development clutch K A x 1 Drive Unit 247 4...
Страница 265: ...8 Thermopile F x 2 x 1 Fusing 263 4...
Страница 272: ...3 Open the duplex door A 4 Right door cover B x 4 5 Right door rear cover A x 3 4 Replacement and Adjustment 270 4...
Страница 286: ...Behind the IOB FCU and G3 Interface Unit F BICU G Controller Board H HDD 4 Replacement and Adjustment 284 4...
Страница 287: ...Controller Box Open I ITB Power Supply Board Electrical Components 285 4...
Страница 327: ...Controller Self Diagnostics 325 5...
Страница 347: ...6 Troubleshooting Service Call Conditions See Appendices for the following information SC Tables 345 6...
Страница 354: ...MEMO 352...
Страница 355: ...Model AT C2 Machine Code D023 D025 Appendices July 2008 Subject to change...
Страница 356: ......
Страница 359: ...SP1 xxx System and Others 496 SP2 XXX Scanning image quality 496 3...
Страница 360: ...4...
Страница 396: ...2 Appendix Maintenance Tables 40 2...
Страница 474: ...4 Appendix Process Control Error Conditions 118 4...
Страница 476: ...5 Appendix Troubleshooting Guide 120 5...
Страница 484: ...5 Appendix Troubleshooting Guide 128 5...
Страница 492: ...Sensor Locations 6 Appendix Jam Detection 136 6...
Страница 500: ...7 Appendix Electrical Component Defects 144 7...
Страница 854: ...MEMO 498...
Страница 855: ...MEMO 499...
Страница 856: ...MEMO 500 EN...