Lexmark Optra C710 Service Manual - Page 184
registration roller timing roller is not turning., Paper Jam 24x displays
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5016-001 I Paper Jam 24x displays, the media is detected and fed from tray x and jams over the paper pass sensor in the printer, while the registration roller (timing roller) is not turning. FRU 1 Paper Pass Sensor: • Flag • Spring • Board MK2 Cable Engine Board Action Check the paper pass sensor flag and spring for correct operation and broken or loose parts. If a problem is found, repair as necessary. The voltages for the paper pass sensor 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. Voltages on the inline connector. Pin # 3 (Orange) 4 (Blue) 5 (Brown) 6 (Green) Voltage Static +5 V dc +5 V dc +5 V dc 0 V dc Voltage Feeding +5 V dc 0 V dc to +5 0 V dc to +5 0 V dc Note: All voltages are approximate. • If the voltage on pin 3 is incorrect, check continuity of the cable. If incorrect and If the cable is good, replace the engine board. • If the voltage on pin 3 is correct but the voltage on pin 4 is incorrect, replace the following parts in the order shown: 1. Paper pass sensor board assembly 2. Engine board 3. MK 2 cable 2-118 Service Manual