Updating Of Paper Feeding Correction Value (Function Code 58) - Brother DCPJ525W Service Manual

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

Function
To match the paper feeding amount with the head nozzle pitch, the machine optimizes the
rotations of the paper feed roller and paper ejection 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
Before starting the procedure below, be sure to set letter-size paper in the paper tray for
printing check patterns
For the paper feed roller adjustment
(1) On your PC, drag and drop the "pfadj.prn" onto the Brother Maintenance USB Printer
driver icon in the Filedrgs window.
The machine displays the "RECEIVING DATA" on the LCD and prints out "PF-EXIT
adjust check" pattern on paper fed from the paper tray (see
printout).
Tip: The check pattern can also be printed with Function code 61 (refer to
this chapter). After printing with a memory card, be sure to remove the card before
proceeding to the following step.
(2) On the machine, press the 5 and 8 keys in this order.
The "Select 58?" appears on the LCD.
(3) Press the Black Start (Mono Start) key.
The "1.PF 2.EXIT" appears on the LCD.
(4) To select the paper feed roller adjustment, press the 1 key.
The "PF1 ADJ NO. +0" appears on the LCD.
(5) On the "PF-EXIT adjust check" pattern printed in step (1) (see
PF1 through PF6 rows sequentially. First, on PF1 row, select the block that is the least
uneven print and enter the number of the least uneven block.
For example, if the number of the least uneven block is +4, press the 4 key while the "PF1
ADJ NO. +0" is displayed on the LCD. If the number is -4, press the
"PF1 ADJ NO. -0" and press the 4 key.
If it is difficult to judge which block is the least uneven print between the adjacent two
blocks, e.g., between +2 and +4 blocks, enter the number (+3 in this case) between them.
Then press the OK key.
(6) In the same way as in step (5), enter the number of the least uneven block for each of PF2
through PF6.
For the paper ejection roller adjustment
(1) On your PC, drag and drop the "exitadj.prn" onto the Brother Maintenance USB Printer
driver icon in the Filedrgs window.
The machine displays the "Receiving Data" on the LCD and prints out "EXIT adjust
check" patterns 1 to 3 (see pages 5-35 to 5-37 for a sample printout).
5-32
page 5-34 for a sample
Section 1.4.19
page 5-34), check each of
key to display the
Confidential
in