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Diagnostic Information 2-5
4097-00X
Service Checks
Carrier Transport Service Check
FRU Action
1 System Board Unplug the printer and disconnect the carrier
transport motor connector (J4) from the system
board. Plug in the printer and check for
approximately 12 V dc between (J4-1) and ground.
If the voltage is incorrect, replace the system
board. If the voltage is correct, check for carrier
transport motor pins shorted to the housing. If a
short is detected, replace the carrier transport
motor.
2 Carrier Transport
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:
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
disconnected from the system board, check for
zero to ten (0 - 10) ohms between the following
pins on the motor:
J4-1 and J4-2
J4-3 and J4-4
If the readings are incorrect, replace the motor.
3 Carrier Guide Rod Clean the carrier rod.
Note
: Lubricate the rod and the carrier rod bearing
surfaces with grease P/N 99A0394.
4 Carrier Transport
Belt
Idler Pulley Parts
Carrier Frame
Check for worn, loose or broken parts. Check for
obstructions blocking carrier movement.
Carrier to carrier frame engagement should be
lubricated with grease P/N 99A0394.