Lexmark Forms Printer 2400 Service Manual - Page 44

POST Service Check, Tractor Sensor Service Check on, Bidirectional Print Adjustment

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24xx FRU 2 Pull Tractor Sensor Action A failed pull tractor sensor can cause Load/Unload to malfunction. With the tractor in the push position: • Press Load/Unload several times while alternately holding down and releasing the left pull tractor actuator. The paper should not park or load when the pull tractor actuator is held down. • If the paper does park or load with the pull tractor actuator held down, go to "Pull Tractor Sensor Service Check" on page 2-31. POST Service Check FRU 1 Cables 2 Code Module 3 Logic Board Action A faulty interface cable can cause a POST error. Disconnect the interface cable from the printer and turn the printer off and then on. Check the connections of the power cable to the logic board. Check the condition and continuity of the operator panel cable. Turn the printer off and then on. If you get the same error during power-up, verify the code module on the logic board is correctly installed. Replace the logic board if necessary and reset "Bidirectional Print Adjustment" on page 4-4. 2-26 Service Manual

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2-26
Service Manual
24xx
POST Service Check
2
Pull Tractor
Sensor
A failed pull tractor sensor can cause
Load/Unload
to malfunction.
With the tractor in the push position:
• Press
Load/Unload
several times while
alternately holding down and releasing the
left pull tractor actuator. The paper should
not park or load when the pull tractor
actuator is held down.
•
If the paper does park or load with the pull
tractor actuator held down, go to
“Pull
Tractor Sensor Service Check” on
page 2-31
.
FRU
Action
1
Cables
A faulty interface cable can cause a POST
error. Disconnect the interface cable from the
printer and turn the printer off and then on.
Check the connections of the power cable to
the logic board.
Check the condition and continuity of the
operator panel cable.
2
Code Module
Turn the printer off and then on. If you get the
same error during power-up, verify the code
module on the logic board is correctly installed.
3
Logic Board
Replace the logic board if necessary and reset
“Bidirectional Print Adjustment” on
page 4-4
.
FRU
Action