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Troubleshooting Procedure Table (Continued)
Step Actions and Questions
5
Check for +24 V to the Duplex Motors.
Disconnect DUPLEX on the Motor Driver
Board.
Is there +24 V at DUPLEX-6 <=> ground?
6
Test the Fuser Motor.
Run the Service Diagnostics Fuser Motor
test.
Does the Fuser Motor function correctly?
7
Check for +24 V to the Fuser Motor.
Disconnect DCHEAT on the Motor Driver
Board.
Is there +24 V at DCHEAT-3 <=> ground?
8
Test the Exit Gate Solenoid.
Run the Service Diagnostics Exit Gate
Solenoid test.
Does the solenoid function correctly.
9
Check for +24 V to the solenoid.
1. Actuate the interlock switches.
2. Disconnect SOLENOID from the Rear
Sensor Board.
Is there +24 V across SOLENOID-1 <=>
ground?
10
Check Motor Driver Board POW24
connector for 24 V.
1. Disconnect POW24.
Is there +24 V across POW24-1 <=>
POW24-2?
11
Check for 24 V at the LVPS
1. Disconnect CN2 on the LVPS.
Is there +24 V across pins 1 and 2?
12
Check the DRV0 and DRV1 ribbon cables
that connect the Motor Driver Board to the
Engine Control Board.
Are these cables connected and
undamaged?
General Troubleshooting
Yes
Go to Step 6.
Go to Step 8.
Replace the Fuser
Motor (see Book 1).
Replace the Exit
Assembly (see
Book 1).
Replace the
solenoid
(page 5-129).
Replace the Motor
Driver Board (see
Book 1).
Replace the
POW24 Harness.
Replace the Engine
Control Board (See
Book 1).
No
Go to Step 10.
Go to Step 7.
Go to Step 10.
Go to Step 9.
Replace the Rear
Sensor Board (See
Book 1).
Go to Step 11.
Replace the LVPS
(See Book 1).
Replace the DRV0
and DRV1
Harnesses.
3-19
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Table of Contents
Troubleshooting
