Error Messages and Codes 3-81
Main Motor Failure
The Main Motor rotation signal indicates that the motor is no longer operational.
Applicable Status Code:
Code 105: Main Motor Failure
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the Developer Drive Assembly for
damage.
Are any parts of the Developer Drive
Assembly damaged or excessively worn?
Replace the
Developer Drive
Assy (
page 8-93).
Go to Step 2.
2
Check the Developer Motor connection.
Is P/J491 connected to the harness?
Go to Step 3. Reconnect the
Developer Motor.
3
Test the Developer Motor.
1. Close the Interlock Switch while testing.
2. Run the Service Diagnostics Developer
Motor test.
Does the motor operate?
Go to Step 5. Go to Step 4.
4
Check for +24 V to the Developer Motor.
Is the +24 V across P/J491-1 <=>
P/J 481-5?
Go to Step 6. Go to Step 5.
5
Test the Interlock Switch.
Run the Service Diagnostics Interlock
Switch test.
Does the switch function correctly?
Go to Step 6. Replace the
Interlock Switch
(
page 8-101).
6
Check all pins on the FAN/PHD/MOT
Harness PL10.1.9 for continuity.
1. Disconnect P/J48 and P/J491.
2. Check continuity between J48 <=> J491.
Replace the Engine
Control Board
(
page 8-104).
Replace the
FAN/PHD/MOT
Harness.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Main Drive Assembly, PL8.1.2
■ Engine Control Board, PL9.1.16
■ FAN/PHD/MOT Harness, PL10.1.9
■ Print Engine Map 2 - P/J Locator (page 10-6)
■ Print Engine Drive Wiring (page 10-19)
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