Lexmark X543 series Service Manual page 151

Lexmark confidential until announce
Sensor2 test
This test verifies the functionality of scan sensor 2. To test this sensor. perform the following steps:
1.
In the sensor test menu, press
2.
press Select (
3.
Lift the ADF top cover, and close the ADF cover sensor (A) by pressing down on the ADF sensor actuator
with a small flat blade screwdriver.
4.
Move the Sensor 2 actuator by inserting a small screwdriver into the hole (B) and gently toggling the
actuator. Sensor 2: Open should display if the sensor is working properly.
5.
press Back (
or to scroll to the Sensor 2 test.
). Starting Test displays. Sensor 2: Closed displays.
) to exit the test and return to the Scanner sensor tests.
A
B
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Diagnostic aids