Lexmark C 540n, Service Manual

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3-16
Service Manual
5025-2xx, 4xx
Base Sensor Test
These tests allow you to verify the correct functioning of the front door, input, and output sensors.
1.
Select Base Sensor Test from Diag Menu, and press Select ( ).
2.
Select the sensor you want to test, and press Select ( ).
The following tests are available:
To exit the test, press Back ( ) or Stop ( ).
Sensor Value How to test
Front Door Opened/
Closed Open and close the front door. The sensor should
change state.
Standard Bin Bin full Lift up on the bin-full/narrow media flag, and then
release. The sensor should change state.
S1 Media clear… or
Media present…
Activate the sensor by removing and re-inserting the
paper tray. The sensor should change state.
S2 Media clear… or
Media present…
Remove the media tray. Activate the input (S2) sensor
flag. The sensor should change state.
Fuser exit sensr Media clear… or
Media present…
Open the front cover. Activate the fuser exit flag. The
sensor should change state.
C-TMC Sensor Opened/
Closed Remove the cyan toner cartridge. Shine a flashlight on
the toner level sensor. The sensor should change
state.
M-TMC Sensor Opened/
Closed Remove the magenta toner cartridge. Shine a
flashlight on the toner level sensor. The sensor should
change state.
Y-TMC Sensor Opened/
Closed Remove the yellow toner cartridge. Shine a flashlight
on the toner level sensor. The sensor should change
state.
K-TMC Sensor Opened/
Closed Remove the black toner cartridge. Shine a flashlight
on the toner level sensor. The sensor should change
state.