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Confidential
1.3.18 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 >
Note: Before carrying out maintenance mode 58, update the firmware to the latest
version.
For printout of test patterns
(1) On your PC, when using A4-sized paper, save a copy of
"NEW_pfadj_A4_BHM17.prn" and when using letter-sized paper, save a copy of
"NEW_pfadj_LTR_BHM17.prn" to a USB flash memory.
(2) Use “1.3.20 Printout of PRN/JPEG Files in USB Flash Memory (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 test pattern
s, check the blocks of PFO 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 test pattern
s, 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 on the test pattern
s, and then press the SET key.
The "EXT1 NO. +0" appears on the LCD.
(8) On the test pattern
s, check the blocks of EXT1 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 "EXT2 NO. +0" appears on the LCD.
(9) In the same way, enter the number of the least uneven block for each of EXT2
through EXT6 on the test pattern
s, and then press the SET key.
The "LF300_1 NO. +0" appears on the LCD.
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