| Problem |
Causes |
Check procedures/corrective measures |
| (6) Developing clutch does not operate. |
Broken developing clutch coil. |
Check for continuity across the coil. If none, replace the developing clutch. |
| Defective harness between developing clutch and control PWB (YC308), or improper connector insertion. |
Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. |
| Defective control PWB. |
Replace the control PWB |
| (7) MP paper feed solenoid does not operate. |
Broken MP paper feed solenoid coil. |
Check for continuity across the coil. If none, replace the MP paper feed solenoid. |
| Defective harness between MP paper feed solenoid and control PWB (YC309), or improper connector insertion. |
Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. |
| Defective control PWB. |
Replace the control PWB |
| (8) Duplex solenoid does not operate. |
Broken duplex solenoid coil. |
Check for continuity across the coil. If none, replace the duplex solenoid. |
| Defective harness between duplex solenoid and control PWB (YC317), or improper connector insertion. |
Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. |
| Defective control PWB. |
Replace the control PWB |
| (9) Eraser lamp does not turn on. |
Defective harness between eraser lamp (YC701) and control PWB (YC316), or improper connector insertion. |
Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. |
| Defective eraser lamp (PWB). |
Replace the eraser lamp (PWB) |
| Defective control PWB. |
Replace the control PWB |
| (10) Paper indicator is flashing when paper is present in the cassette. |
Defective paper sensor. |
Replace the paper sensor. |
| Defective harness between paper sensor and control PWB (YC306), or improper connector insertion. |
Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. |
| (11) A paper jam in the paper feed/conveying section or fuser section is indicated when the power switch is turned on. |
A piece of paper torn from paper is caught around registration sensor or exit sensor. |
Check and remove if any. |
| Defective registration sensor on the high voltage PWB. |
Replace the high voltage PWB |
| Defective exit sensor. |
Replace the exit sensor. |
| (12) Attention indicator is lit when the top cover is closed. |
Defective interlock switch on the power source PWB. |
Check for continuity across the interlock switch. If there is no continuity when the interlock switch is on, replace the power source PWB |