Lexmark C540 - Base Sensor Test; Miscellaneous Tests; Motor Detect

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 ().
Miscellaneous tests
Motor Detect
This test initiates an automatic motor detection process that should be performed whenever the controller board
is replaced.
To run Motor Detect:
1. Select MISC TESTS in the Diag Menu, and press Select ().
Remove Cartridge. Press Select appears.
2. Select Motor Detect.
Note: Do not press Select yet.
3. Remove all toner cartridges and the imaging unit.
4. Close the front cover.
If you press Select before closing the front cover, a message appears: Close Cover. Press Select.
5. Press Select ().
Motor Detection In Progress… appears.
The motor detection process takes about 10 seconds, and stops automatically.
Detect Complete. Rebooting… appears, and the printer performs a POR (Power On Reset).
Sensor Value How to test
Front Door Opened/
Closed
The sensor should change state.
Standard Bin Bin full Lift up on the bin full 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 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.