Service checks, Carrier transport service check, Carrier transport service – Lexmark 4098-001 User Manual

Page 20: Carrier, Carrier transport

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2-8

Service Manual

4098-001

Service Checks

Carrier Transport Service Check

FRU

Action

1

System Board

Unplug the printer and disconnect the carrier
transport motor connector (J5) from the system
board. Plug in the printer and check for
approximately +30 V dc between (J5-1) and
ground at the system board. 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 pins J5-1 and
J5-2 on the motor. If the readings are incorrect,
replace the motor.

3

Carrier Guide
Shaft

Clean the carrier shaft. Lubricate the shaft and the
carrier shaft 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. Lubricate
the carrier to carrier frame engagement with
grease (P/N 99A0394)

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