Specifications

Chapter 6: FRU Replacement and Fault Isolation Procedures
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6.3.8 Registration Sensor failure continued
4. REGISTRATION SENSOR ACTUATOR SIGNAL ANALYSIS
Disconnect P/J 111 from the HVPS. Perform this test within 30 seconds after switching power on.
After 30 seconds, the LVPS shuts down with a no-load condition.
Open the Front Transport Assembly.
Is there +5VDC between P/J 16–6 and P/J16–5?
Press on the Registration Sensor actuator.
Is there 0VDC between P/J 16–6 and P/J 16–5?
Yes No
Replace the MCU PWB. Go to Step 5.
5. SENSOR HARNESS ASSEMBLY ANALYSIS
Disconnect P/J 16 on the MCU PWB and P/J120 on the Registration Sensor PWB.
Is there continuity (0
ΩΩ
) between all wires on J16 and J120?
Yes No
Replace the Registration Sensor. Replace the Sensor Harness Assembly.