Updating Of Paper Feeding Correction Value (Function Code 58) - Brother MFC990CW Service Manual

9.1.4.18 Updating of Paper Feeding Correction Value (Function code 58)

Function
To keep the paper feeding performance in the best condition for quality print, the controller
optimizes the rotation of the paper feed roller, using the correction value stored in the EEPROM
on the main PCB.
If you replace the engine unit or head/carriage unit, you need to update the paper feeding
correction value according to the procedure given here.
Operating Procedure
(1) Switch on your PC.
(2) Place the machine in the maintenance mode (see
paper tray to print check patterns.
(3) Connect the machine to your PC using a USB cable.
(4) On your PC, run "filedg32.exe" in the folder created in
The Filedrgs window appears as shown below.
For the paper feed roller adjustment
(5) Drag and drop the "pfadj.prn" onto the Brother Maintenance USB Printer driver icon in the
Filedrgs window shown above.
The machine displays the "RECEIVING DATA" on the LCD and prints out "PF adjust
check" pattern (see
(6) On the machine, press the 5 and 8 keys in this order. For models without numerical keypad,
enter 5 and 8 in this order using the
The "1.PF 2.EXIT" appears on the LCD.
(7) To select the paper feed roller adjustment, press the 1 key. (For models without numerical
keypad, enter 1 using the
The "PF ADJ NO. +0" appears on the LCD.
page 9-35 for a sample printout).
,
, and OK keys.)
9-33
Section 9.1.1) and set A4-size paper in the
Section 7.1.1.
and OK keys.
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