Setting The Sensing Reference Level Of The Ink Empty Sensor - Brother MFC5100C Service Manual

5.3.12 Setting the Sensing Reference Level of the Ink Empty Sensor

Function
This function allows you to set the sensing reference level of the ink empty sensor which apply
when the controller judges whether there is ink in the ink cartridges. The setting procedure
requires a foam-empty cartridge as a reference cartridge.
NOTE: If you replace the main PCB or ink empty sensor, carry out this procedure.
Operating Procedure
Handling notes for the reference cartridge: Shown below is a foam-empty cartridge to be used
for setting the sensing reference level of the ink empty sensor. Do not touch section "x" or "y."
If any dust or dirt is found on "x" or "y," wipe it off with a soft cloth. If "x" is scratched, replace
the cartridge with a new one. Using such a scratched cartridge will fail to set correct reference
level. After completion of the setting procedure, store the cartridge in the container.
(1) Press the 5 and 7 keys in this order in the initial stage of the maintenance mode.
(2) Open the scanner unit.
The carriage automatically moves left to the ink replacement position.
(3) Remove the yellow ink cartridge.
The LCD shows "SET F.EMP CART!!."
NOTE: When this message is displayed, do not load or unload any other ink cartridges.
(4) Set the foam-empty cartridge into the yellow ink cartridge position.
The LCD shows "CLOSE COVER!!."
(5) Close the scanner unit.
The equipment shows the "-INKEMP CHECK-" and starts setting the sensing level for the
foam-empty cartridge.
If the equipment completes setting normally, it beeps and displays the "INKEMP TST:OK!."
If it fails, the "INKEMP F.EMP:NG!" appears, so press the Stop key and go back to step (1).
(6) Open the scanner unit and remove the foam-empty cartridge.
(7) Load the yellow ink cartridge removed in step (3) back into place.
(8) Press the Stop key to return to the initial stage of the maintenance mode.
Foam-empty cartridge
5 -1 8