Kyocera FS-1128MFP Service Manual - Page 136
Problem, Causes, Check procedures/corrective measures, duplex solenoid and control
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2JN Problem Causes Check procedures/corrective measures (6)Paper feed clutch Broken paper feed clutch does not operate. coil. Check for continuity across the coil. If none, replace the paper feed clutch. Defective harness between paper feed clutch and control PWB (YC20), 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 (See page 1-5-39). (7)Developing clutch Broken developing clutch does not operate. coil. Check for continuity across the coil. If none, replace the developing clutch. Defective harness between developing clutch and control PWB (YC20), 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 (See page 1-5-39). (8)MP paper feed solenoid does not operate. Broken MP paper feed sole- Check for continuity across the coil. If none, replace the MP paper noid coil. feed solenoid. Defective harness between MP paper feed solenoid and control PWB (YC21), 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 (See page 1-5-39). (9)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 (YC29), 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 (See page 1-5-39). (10)Eraser lamp does not turn on. Defective harness between eraser lamp (YC701) and control PWB (YC28), 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 (See page 1-5-39). (11)Paper indicator is flashing when paper is present in the cassette. Defective paper sensor. Defective harness between paper sensor and control PWB (YC18), or improper connector insertion. Replace the paper sensor. Reinsert the connector. Also check for continuity within the connector harness. If none, remedy or replace the harness. 1-4-18