Brother MFC-J3520 Service Manual page 305

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For the paper feed roller diameter adjustment
(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
key once.
The "1. PF 2. EXIT" appears on the LCD.
(4) Press the 1 key.
The "PF1 NO. +0" appears on the LCD.
(5) On the pfadj1 pattern (see
way as in step (4) of the adjustment of all paper feeding correction values, enter
the number of the block that is the least uneven print and then press the SET key.
(6) In the same way, check each of the PF2 through PF6 rows. Enter the number of
the block that is the least uneven print and press the SET key.
Press the X key to return the machine to the initial stage of the maintenance mode.
For the paper ejection roller diameter adjustment
(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
key once.
The "1. PF 2. EXIT" appears on the LCD.
(4) Press the 2 key.
The "EXT NO. +0" appears on the LCD.
(5) On the pfadj1 pattern (see
way as in step (4) of the adjustment of all paper feeding correction values, enter
the 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.
For the LF resolution 300 adjustment
(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
key twice.
The "LF300" appears on the LCD.
(4) Press the 1 key.
The "LF300 NO. +0" appears on the LCD.
(5) On the pfadj2 pattern (see
way as in step (4) of the adjustment of all paper feeding correction values, enter
the 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.
page
5-36), check the PF1 row of blocks. In the same
page
5-36), check the EXIT row of blocks. In the same
page
5-37), check the L300 row of blocks. In the same
5-34
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