Sensitivity Adjustment Of Density Sensor (Function Code 72) - Brother DCP-9010CN Service Manual

1.4.22 Sensitivity adjustment of density sensor (Function code 72)

<Function>
This function allows you to print the patch data for density sensor sensitivity adjustment on the
belt unit and measure the density with the density sensor. The characteristics of the density
sensor are calculated based on the value measured by the density sensor, and the parameter
is adjusted upon color density adjustment.
<Operating procedure>
(1) Press the 7 and 2 buttons in this order in the initial state of the maintenance mode.
"PLEASE WAIT" is displayed on the LCD.
(2) When the acquisition of the parameters is finished without error, the machine beeps for
one second and returns to the initial state of the maintenance mode.
When an error message is displayed on the LCD, take the measures described in the table below.
Error message
FAILED
TONER EMPTY # *
Cover is Open
Replace Toner
No Paper
Jam Tray1
Jam Rear
* # indicates the toner color (Y, M, or C) of which cartridge became empty.
Remove the error factors with the following operations and
press the Start/Black button to clear the error.
- Re-insert the toner cartridge in the correct position.
- Replace the toner cartridge.
- Replace the drum unit.
- Replace the belt unit.
- Replace the registration sensor holder ASSY.
Replace the empty toner cartridge and press the Start/Black
button to clear the error. Perform the sensitivity adjustment
of the density sensor again.
Close the top cover.
Replace the toner cartridge.
Replenish paper, and press the Start/Black button to clear
the error.
Remove the jammed paper, and press the Start/Black
button to clear the error.
Remove the jammed paper, and press the Start/Black
button to clear the error.
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Measure
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