Brother MFC5100C Service Manual page 55

(4) Remove the screw and take the ADF thickness adjuster out of the upper ADF chute.
NOTE: The ADF thickness adjuster is lubricated with grease, so take care not to smear
surrounding parts with the grease when handing the ADF thickness adjuster.
(5) At either end of the pressure roller shaft, press the latch to the right and take out the pressure
rollers and their shaft. Then remove their springs.
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