Lexmark X748dte - Printhead Tests; Mirror Motor Test; Servo Laser Test; Device Tests

Diagnostic aids 3-19
7526
Go Back
Previous
Next
Printhead Tests
Mirror Motor Test
1.
Touch PRINTHEAD TESTS from the Diagnostics Menu.
2. Touch Mirror Motor Test.
The panel displays Motor Running.
After the test completes, the panel displays either Pass or Fail.
To stop the test, press .
Servo Laser Test
1.
Touch PRINTHEAD TESTS from the Diagnostics Menu.
2. Touch Servo Laser Test.
The panel displays Motor Running. After the test completes, the panel displays either Pass or Fail.
To stop the test, press .
Device Tests
Dynamic
sensors
Fuser Exit Open/Closed Open the top access cover. Activate the fuser
exit flag. The sensor should change state.
Input Open/Closed Remove the paper tray 1. Activate the input
sensor flag. The sensor should change state.
Front Door Open/Closed Open the front door. The sensor should
change state.
Top Door Open/Closed Open the top access cover assembly. The
sensor should change state.
Narrow Media Open/Closed Test the MP feeder tray by inserting a sheet of
paper, and then pushing up to sensor. The
sensor should change state.
K Toner Open/Closed Remove the black toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
M Toner Open/Closed Remove the magenta toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
C Toner Open/Closed Remove the cyan toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
Y Toner Open/Closed Remove the yellow toner cartridge. Shine a
flashlight on the toner level sensor. The
sensor should change state.
TPS (toner patch
sensor)
Open/Closed Open the front access door. Slip a piece of
paper between the TPS and the transfer
module. The sensor should change state.
Bubble Open/Closed Open the front door. Activate the fuser entry
flag. The sensor should change state.
Dynamic MPF Open/closed Test by removing the MPF pick arm and
activating the paper present sensor or remove
the tray and shine a flashlight on the paper
present sensor.
Sensor type Sensor name Possible values Sensor activation