Brother MFC-3340CN Service Manual page 232

(5) Press the 5 and 8 keys on the machine.
The "1.PF 2.EXIT" appears on the LCD.
(6) To select the paper feed roller adjustment, press the 1 key.
The "PF ADJ NO. +0" appears on the LCD.
(7) Check the PF adjust check patterns ("A" on the next page) and select the one that is the least
uneven print. Make a note of that pattern number.
If the unevenness is far to the left of check pattern -8, regard it as -8; if it is far to the right of
check pattern +8, regard it as +8. In this case, you need to check whether the paper feed roller
and head/carriage unit are set into place.
(8) Enter the number of the least uneven check pattern found in step (7).
For example, if the number of the least uneven check pattern is +4, press the
press the and 4 keys. (To enter +, use the
The machine automatically returns to the initial stage of the maintenance mode.
(9) Press the 5 and 8 keys on the machine.
The "1.PF 2.EXIT" appears on the LCD.
(10) To select the paper ejection roller adjustment, press the 2 key.
The "EXIT ADJ NO. +0" appears on the LCD.
(11) Check the PF adjust check patterns ("B" on the next page) and select the one that is the least
uneven print. Make a note of that pattern number.
(12) Enter the number of the least uneven check pattern found in step (11).
The machine automatically returns to the initial stage of the maintenance mode.
key; to enter -, use the
8-25
and 4 keys; if -4,
key.)
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