Brother MFC-9010CN Service Manual

7-43
Confidential
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.
* # indicates the toner color (Y, M, or C) of which cartridge became empty.
Error message Measure
FAILED 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.
TONER EMPTY # * Replace the empty toner cartridge and press the Start/Black
button to clear the error. Perform the sensitivity adjustment
of the density sensor again.
Cover is Open Close the top cover.
Replace Toner Replace the toner cartridge.
No Paper Replenish paper, and press the Start/Black button to clear
the error.
Jam Tray1 Remove the jammed paper, and press the Start/Black
button to clear the error.
Jam Rear Remove the jammed paper, and press the Start/Black
button to clear the error.

Brother MFC-9010CN Specifications

General

Brand	Brother
Model	MFC-9010CN
Category	All in One Printer
Language	English