3-20 Service Manual
7525-63x
Sensor Test
This test is used to verify that the sensors are working correctly for an individual input tray.
1. Navigate to INPUT TRAY TESTS > Sensor Test.
2. Select the tray where you want to test the sensors. Depending on the tray selected, you may have Empty
Sensor, Low Sensor, or Pass thru 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 test, press Stop.
BASE SENSOR TEST
These tests allow you to verify the correct functioning of the front door, input, and output sensors.
1. Navigate to BASE SENSOR TEST.
2. Select the sensor to test.
The following tests are available:
3. To stop the test, press .
Input Tray Empty Sensor Low Sensor Pass thru Sensor
Tray 1
✘✘✘
Tray 2 (650-sheet duo tray)
✔✔✔
MP Feeder
✘✘✘
Sensor Value How to test
Front Door Value open/
Value closed
Open and close front door. The sensor should change
state.
Standard Bin Bin empty/
Bin full
Toggle the bin full media flag attached to the redrive
unit.
Input - S1 Media clear/
Media present
Remove the media tray. Activate the input sensor flag.
The sensor should change state.
Input - S2 Remove and re-insert the media tray. The sensor
should change state.
Fuser Exit Open the front door. Activate the fuser exit flag. The
sensor should change state.
C-TMC Sensor Not closed/
Closed
Remove the cyan toner cartridge. Shine a flashlight on
the toner level sensor. The sensor should change
state.
M-TMC Sensor Remove the magenta toner cartridge. Shine a
flashlight on the toner level sensor. The sensor should
change state.
Y-TMC Sensor Remove the yellow toner cartridge. Shine a flashlight
on the toner level sensor. The sensor should change
state.
K-TMC Sensor Remove the black toner cartridge. Shine a flashlight
on the toner level sensor. The sensor should change
state.