Oki B6250 - Manual (Page 133)

B6250 User’s Guide> 133
2. While pushing the retard part (see
right diagram) down (1), widen the
tab on the feed roll to loosen it (2)
and then slowly remove the feed
roll from the shaft of the paper
tray (3).
3. Wipe the rubber parts with a wet
but well-wrung soft cloth.
4. Turn the short tab of the feed roll
to the right and slowly push it onto
the shaft of the paper tray.