Lexmark 4402-001 Manual Do Utilizador
2-6
Service Manual
4402-001
Service Checks
Carrier Transport Service Check
FRU
Action
1
System Board
Carrier Transport
Motor
Motor
Check the transport carrier motor connector J4. If
connected, check for approximately 28 volts on
pins 1 and 2 or at the wire connections located on
the rear of the transport carrier motor. If voltage is
incorrect, replace the system board. If voltage is
correct, check the motor for shorts.
connected, check for approximately 28 volts on
pins 1 and 2 or at the wire connections located on
the rear of the transport carrier motor. If voltage is
incorrect, replace the system board. If voltage is
correct, check the motor for shorts.
2
Carrier Transport
Motor
Motor
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:
turn can be caused by:
•
An open or short in the motor.
•
An open or short in the motor driver
on the system board.
on the system board.
•
A bind in the carrier transport
mechanism.
mechanism.
With the carrier transport motor cable (J4)
disconnected from the system board, check for 0
to 10 ohms between the following pins on the
motor:
disconnected from the system board, check for 0
to 10 ohms between the following pins on the
motor:
J4-1 and J4-2
If the readings are incorrect, replace the print
engine. Go to the
engine. Go to the
3
Carrier Guide Rod
Clean the carrier rod.
Note: Lubricate the rod and the carrier rod bearing
surfaces with grease P/N 99A0394.
surfaces with grease P/N 99A0394.