Service Checks; Carrier Transport Service Check - Lexmark X63 Service Manual

4400-001

Service Checks

Carrier Transport Service Check

FRU
1 System Board
Carrier Transport
Motor
2 Carrier Transport
Motor
3 Carrier Guide Rod
Action
Check the carrier transport motor connector CN5.
If connected, check for approximately 28 volts on
pins 1 and 2 or at the wire connections located on
the rear of the carrier transport motor. If voltage is
incorrect, replace the system board. If voltage is
correct, check the motor for shorts.
Check the motor for binds, or loose motor pulley.
A noisy or chattering motor or a motor that fails to
turn can be caused by:
•
An open or short in the motor
•
An open or short in the motor driver
on the system board
•
A bind in the carrier transport
mechanism
With the carrier transport motor cable (CN5)
disconnected from the system board, check for 0
to 16 ohms between the following pins on the
motor:
CN5-1 and CN5-2
If the readings are incorrect, replace the print
engine. Go to the
Removal" on page
Clean the carrier rod.
Note: Lubricate the rod and the carrier rod bearing
surfaces with grease P/N 99A0394.
"Carrier Transport Motor
4-25.
Diagnostic Information
2-7