Updating Of Paper Feeding Correction Values (Maintenance Mode 58) - Brother MFC-J3520 Service Manual

1.3.19 Updating of Paper Feeding Correction Values (Maintenance mode 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
values stored in the EEPROM on the main PCB.
If you replace the head/carriage unit or main PCB ASSY or remove the engine-related
parts, you need to update the paper feeding correction values according to the
procedure given below.
< Operating Procedure >
For printout of test patterns
(1) On your PC, when using A4-sized paper, save copies of "pfadj1_A4_BHM13.prn"
and "pfadj2_A4_BHM13.prn" to a USB flash memory or SD card. When using
letter-sized paper, save copies of "pfadj1_LTR_BHM13.prn" and
"pfadj2_LTR_BHM13.prn".
(2) Use Section 1.3.21 "Printout of PRN/JPEG Files in Memory Card (Maintenance
mode 61)"
Tip: The test patterns can also be printed by opening "Filedrgs" on your PC and
dragging & dropping each of the adjustment files onto the Brother
Maintenance USB Printer driver icon.
For adjustment of all paper feeding correction values
(1) Press the 5 and 8 keys in this order in the initial stage of the maintenance mode.
The "Select 58?" appears on the LCD.
(2) Press the Mono Start key.
The "1. ALL" appears on the LCD.
(3) Press the 1 key.
The "PF_ONLY NO. +0" appears on the LCD.
(4) On the pfadj1 pattern (see
block that is the least uneven print and enter the block number.
For example, if the number of the least uneven block is +4, press the 4 key with the
"PF_ONLY NO. +0" being displayed on the LCD. If the number is -4, press the
key to display the "PF_ONLY NO. -0" and press the 4 key. Then press the SET key.
(5) The "PF1 NO. +0" appears on the LCD.
(6) On the pfadj1 pattern (see
sequentially. First, on the PF1 row, select the block that is the least uneven print
and enter the block number. Then press the SET key.
(7) In the same way, enter the number of the least uneven block for each of PF2
through PF6, and then press the SET key.
The "EXT NO. +0" appears on the LCD.
(8) On the pfadj1 pattern (see
way as in step (4), enter the number of the block that is the least uneven print and
then press the SET key.
The " 1.LF300 " appears on the LCD.
(9) On the pfadj2 pattern (see
way as in step (4), enter the number of the block that is the least uneven print and
then press the SET key.
The "CORFEED NO. +0" appears on the LCD.
(10)On the pfadj2 pattern (see
number of the block that is the least uneven print and then press the SET key.
Press the X key to return the machine to the initial stage of the maintenance mode.
to print test patterns.
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5-36), check the PF0 row of blocks. Select the
5-36), check each of the PF1 through PF6 rows
5-36), check the EXIT row of blocks. In the same
5-37), check the L300 row of blocks. In the same
5-37), check the CORF row of blocks. Enter the
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