Sensitivity Adjustment Of Registration-Mark Sensor (Function Code 75) - Brother HL-4040CN, HL-4050CDN, HL-4070CDW Service Manual

1.4.15 Sensitivity Adjustment of Registration-mark Sensor (Function code 75)

<Function>
This function makes the registration-mark sensor to adjust its sensitivity compulsory. This
function makes the machine to check the surface of the belt unit by using the registration-mark
sensor as well.
LCD
REGI_SENS ADJUST
1
BELT OFF
REGI_SENS ADJUST
2
BELT CHECK
REGI_SENS ADJUST
3
BELT ON
<Operating Procedure>
(1) Press the
the maintenance mode. Then, press the OK button.
"REGI SENS ADJUST" appears on the LCD.
(2) Press the
(3) Press the Go button, and then the sensitivity adjustment is started. Upon completion of
this adjustment, the "OK" appears on the LCD. Press the Cancel button to return the
machine to the initial stage of the maintenance mode.
Note:
- If you press the Go button during the sensitivity adjustment or after the error message
appears on the LCD, the sensitivity adjustment is started again.
- In the case that the error occurs, refer to the
way to solve it.
Adjust the sensitivity of the registration-mark sensor when the
belt unit is not operated. This is to check whether the
registration-mark sensor's operation is okay or not.
Check whether there is no scratch on the surface of the belt
unit within the detectable range of registration-mark sensor.
Adjust the sensitivity of the registration-mark sensor when the
belt unit is operated. (This adjustment is the same as the
operation before the color registration.)
or button to display "MAINTENANCE 75" on the LCD in the initial stage of
or button to select the appropriate term.
Description
next page to check the error description and the
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