Lexmark Optra C710 Service Manual page 121

5016-001
B The fuser drive system is operating properly and the cam disk is
turning.
FRU
1 Cam Sensor (PH16)
Engine Board (M4)
SN Cable
Action
Be sure the cam sensor is mounted correctly
and locked into place.
Check the following voltages on the cam
sensor:
Pin # Signal
Voltage
1 (Orange) +5 V dc
2 (Brown) -CCSENS +5 V dc
3 (Green) GND
Note: The voltage on pin 2 should vary, as the
cam turns from approximately 0 V to +5 V dc.
• If the voltage on Pin 1 is incorrect, check
the cable. If incorrect, replace the cable.
• If the cable is good, replace the following
FRU's in the order shown:
1. Cam sensor
2. Engine board
3. SN cable
Diagnostic Information
Voltage Voltage
Disc in Disc Out
+5 V dc +5 V dc
0 V dc
0 V dc 0 V dc
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