5-36
Confidential
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 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_BHS15.prn"
and "pfadj2_A4_BHS15.prn" to a USB flash memory or SD card. When using letter-
sized paper, save copies of "pfadj1_LTR_BHS15.prn" and "pfadj2_LTR_BHS15.prn."
(2) Use Section 1.3.21 "Printout of PRN/JPEG Files in Memory Card (Maintenance
mode 61)" 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 "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 page 5-39), check the blocks of PF0 row. Select the
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 page 5-39), check each of the PF1 through PF6 rows
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 page 5-39), check the blocks of EXIT row. In the same
way as in step (4), enter the number of the block that is the least uneven print and
then press the SET key.
The "LF300 NO. +0" appears on the LCD.
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