09/03
2-95
DC 3535/2240/1632, WC M24
5-702
Status Indicator RAPs
Initial issue
5-702 Registration Sensor RAP
Use this RAP when directed to troubleshoot problems with the Registration Sensor.
Initial Actions
Remove the following:
• Front Cover (PL 20.1)
• Entrance Tray (PL 20.1)
• Lower Chute Assembly (REP 5.8)
• Rear Cover (REP 5.18)
Ensure the document path is clear. Look for pieces of paper that could be blocking the Regis-
tration Sensor.
Procedure
The Fault Code is 5-902.
YN
Enter dC330 [005-110]. Block and unblock the Registration Sensor The display
changes state.
YN
+5 VDC is measured between P/J599-2 (+) and GND.
YN
Replace the DADF Control PWB (PL 20.3).
Block the sensor. The voltage at P/J599-2 goes to less than +1.0 VDC.
YN
Go to Flag 1. Check the wire for an open circuit. If the wire is good, replace the
Registration Sensor (PL 20.5).
Replace the DADF Control PWB (PL 20.3).
Ensure that the steps listed in the Initial Actions of this RAP have been completed. If so,
and the problem continues, replace the DADF PWB (PL 20.3).
Perform the following:
•Go to Flag 1. Check the wire for a short circuit.
•Go to Flag 2. Check the wires for an open circuit.
• If the wires are good, replace the Registration Sensor (PL 20.5).
• If the problem continues, replace the DADF Control PWB (PL 20.3).
Figure 1 5-702 RAP Circuit Diagram - Registration Sensor
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