Updating Of Paper Feeding Correction Value (Maintenance Mode 58); Updating Of Paper Feeding Correction Value - Brother DCP-J552DW Service Manual

1.3.19 Updating of Paper Feeding Correction Value (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 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_BHmini13.prn",
"pfadj2_A4_BHmini13.prn" and "pfadj3_A4_BHmini13.prn" to a USB flash memory or SD
card. When using letter-sized paper, save copies of "pfadj1_LTR_BHmini13.prn",
"pfadj2_LTR_BHmini13.prn" and "pfadj3_LTR_BHmini13.prn".
(2) Use "1.3.21 Printout of PRN/JPEG Files in Memory Card (Maintenance Mode 61)" in this
chapter to print test patterns.
Tip The test patterns can also be printed by opening [Filedrgs] on your PC and dragging &
dropping the above 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 machine displays "Select 58?" on the LCD.
(2) Press the [Mono Start] key.
The machine displays "1.ALL" on the LCD.
(3) Press the [1] key.
The machine displays "PF_ONLY NO. +0" on the LCD.
(4) On the pfadj1 pattern (refer to
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] or [OK] key. The machine displays "PF1 NO. +0" on the LCD.
(5) On the pfadj1 pattern (refer to
PF1 row, enter the number of the block that is the least uneven print and enter the block
number. Then press the [Set] key.
(6) In the same way, enter the number of the least uneven block for rows PF2 through PF6, and
then press the [Set] or [OK] key. The machine displays "EXT1 NO. +0" on the LCD.
(7) On pfadj1 through 3 patterns (refer to
way as in step (4), enter the number of the least uneven block for rows EX1 through EX6, and
then press the [Set] or [OK] key. The machine displays "1.ALL" on the LCD.
(8) Press the [Stop] or the [X] key to return the machine to the initial stage of the maintenance
mode.
page 5-38), check the PF0 row of blocks. Select the block that is
page 5-38), check the PF1 to PF6 rows of blocks. First, on the
page 5-38), check the EX rows of blocks. In the same
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