
No.
Type
Details (Symptom, Possible Cause, Troubleshooting Procedures)
141
D
Black level detection error
The black level cannot be adjusted within the target value during the zero clamp.
• Harness disconnected
• Defective SBU
1. Check the cable connection
2. Replace the SBU.
No.
Type
Details (Symptom, Possible Cause, Troubleshooting Procedures)
142
D
White level detection error
The white level cannot be adjusted within the target during auto gain control.
• Dirty exposure glass or optics section
• SBU board defective
• Harness disconnected
• Exposure lamp defective
• Scanner motor defective
1. Clean the exposure glass, white plate, mirrors, and lens.
2. Check if the exposure lamp is lit during initialization.
3. Check the harness connection between SBU and IPU.
4. Replace the exposure lamp.
5. Replace the scanner motor.
6. Replace the SBU board.
6. Troubleshooting
784
Summary of Contents for AP-C3
Page 1: ...Model AP C3 Machine Code D143 D144 Field Service Manual January 2012 Subject to change...
Page 2: ......
Page 24: ...22...
Page 26: ...Product Overview Component Layout 1 Product Information 24...
Page 36: ...1 Product Information 34...
Page 130: ...11 Reassemble the machine 2 Installation 128...
Page 158: ...2 Installation 156...
Page 249: ...21 Pulley A timing belt 22 Gear unit A x 8 Drive Unit 247...
Page 259: ...5 Disconnect the connector A x 1 x 1 6 Duplex by pass motor bracket A x 2 Drive Unit 257...
Page 268: ...6 Development clutch K A x 1 4 Replacement and Adjustment 266...
Page 323: ...5 Remove the controller box stay A x 4 6 IOB bracket A x 4 x All Electrical Components 321...
Page 336: ...2 Controller board A x 7 x 3 4 Replacement and Adjustment 334...
Page 366: ...3 Remove the bracket A x 1 x 1 4 Release the harness A x 1 4 Replacement and Adjustment 364...
Page 880: ...6 Troubleshooting 878...
Page 890: ...Flow Chart for the Toner End Recovery Error 6 Troubleshooting 888...
Page 908: ...Sensor Locations 6 Troubleshooting 906...
Page 922: ...6 Duplex with combine mode SP 8421 005 pages 7 Energy Saving 920...
Page 923: ...Model AP C3 Machine Code D143 D144 Appendices January 2012 Revised...
Page 924: ......
Page 928: ...4...
Page 960: ...1 Appendices 36...
Page 1330: ...1106 1 Toner Limit Value CTL 100 to 400 260 1 step 3 SP Mode Tables 406...