Lexmark Optra C710 Service Manual - Page 168
Service Manual, Paper Feed Unit, Clutch, Check Tray 1
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5016-001 FRU 5 Paper Feed Unit Clutch 241 Check Tray 1 message displays Action Note: The voltages for the magnetic clutch can be checked at the 6 pin inline cable connector located in the HVPS to engine board cable harness above the temperature/humidity board assembly on the left side of the printer. Check the resistance of the magnetic clutch, it should read approximately 245 ohms. If incorrect replace the magnetic clutch. Check the following voltages on the inline connector while feeding a sheet of paper. Pin # Voltage Static 1 (Black lead) +24 V dc 2 (Red lead) +24 V dc Voltage Feeding +24 V dc 0 V dc to +24 V dc If the clutch or cable from the clutch are open: 1 (Black lead) 2 (Red lead) +24 V dc 0 V dc If the voltage on the red lead measures approximately +24 V dc, but does not vary as a sheet of paper is picked, check the cables. • If correct, replace the failing cable. • If correct, replace the engine board. 2-102 Service Manual