Lexmark Optra C710 Service Manual - Page 122

5016-001 C The fuser drive system is operating properly and the cam disk is not turning. FRU 1 Contact Cam Solenoid CRF Cable Engine Board 2 Motor Mounting Stay Assembly Action Check the solenoid for proper operation, making sure it picks during POR cycle. Disconnect the solenoid and check the resistance on the solenoid cable. It should measure approximately 65 ohms. If incorrect, replace the solenoid. Check the voltages on the solenoid cable connector. Check the following voltages on the contact cam solenoid cable connector: Pin # 1 (Red) 2 (Black) Signal Voltage +24 V dc -SL2ON Voltage Static +24 V dc +24 V dc Voltage Picked +24 V dc 0 V - +24 V dc Note: All voltages are approximate. If the voltage on Pin 1 is incorrect, check continuity of the CRF cable to the cam solenoid. • If incorrect, replace the cable. • If correct, replace the engine board. Check the clutch spring, clutch boss, clutch disk and gear C4 for signs of wear, broken teeth or binds. Repair or replace the motor mounting stay assembly if a problem is found. 2-56 Service Manual