Lexmark C 540n, Service Manual

Page: 105 / 262

Diagnostic aids
3-15
5025-2xx, 4xx
Input Tray Tests
Feed Tests
Any installed input tray can be tested. The pages fed through the printer are blank.
To run the Feed Test:
1.
Select INPUT TRAY TESTS from Diag Menu, and press Select ( ).
2.
Select Feed Tests , and press Select ( ).
3.
Select the tray to be tested. Choices are installed trays, including Tray 1 , Tray 2 , MP Feeder .
4.
Select Single or Continuous , and press Select ( ).
•
Single—a single sheet of blank paper is fed, and the test stops.
•
Continuous—sheets are fed continuously, until Stop ( ) is pressed.
Sensor Test
This test is used to verify that the sensors are working correctly for an individual input tray.
1.
Select INPUT TRAY TESTS from Diag Menu, and press Select ( ).
2.
Select Sensor Tests , and press Select ( ).
3.
Select the tray where you want to test the sensors.
4.
Depending on the tray selected, you may have Empty Sensor , Low Sensor , or Passthru Sensor .
Sensors will be displayed with either
Open
or
Closed
. Toggle the sensor you want to test and note the
change of state of that sensor.
To Exit the text, press Back ( ) or Stop ( ).
Input Tray Empty Sensor Low Sensor Passthru Sensor
Tray 1
✘ ✘ ✘
Tray 2 (650-sheet duo tray)
✔ ✔ ✔
Tray 3 (550-sheet tray, C546tdn)
✔ ✔ ✔
MP Feeder
✘ ✘ ✘