Sensitivity Adjustment Of Registration Mark Sensor And Check Of Belt Unit Surface (Function Code 75) - Brother HL-4140CN Service Manual

1.4.20 Sensitivity adjustment of registration mark sensor and check of belt unit
surface (Function code 75)
<Function>
This function makes the registration mark sensor to adjust its sensitivity compulsory. This
allows you to check if the registration mark sensor works properly. This function makes the
printer to check the surface of the belt unit by using the registration mark sensor as well.
<Operating procedure>
(1) Press the
the maintenance mode. Then, press the OK button. After "REGI_SENS ADJUST" is
displayed on the LCD, "REGI ADJ-BELTOFF" is displayed.
(2) Press the
REGI ADJ - BELTOFF
REGI BELT CHECK
REGI ADJ&CHECK
(3) Press the Go button, and then the sensitivity adjustment is started. Upon completion of
this adjustment, the "OK" appears on the LCD.
(4) Press the Cancel button to return to the printer to the initial state 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
the way to solve it.
or button to display "MAINTENANCE 75" on the LCD in the initial state of
or button to select the appropriate item.
LCD
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 that there are no scratches on the surface of the belt
unit of the registration mask 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 inter-color position alignment.)
Description
next page to check the error description and
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