Oki B4100 - Manual (Page 318)

40055101TH Rev.4 318 /
Is separation rubber dirty?
No
Yes
A
Yes
Are pinch rollers pressed normally by the
springs? (After pushing them by fingers,
do they return back to the original positions?)
Are feed rollers dirty?
Set them properly.
Clean it.
Clean it.
No
No
Are feed rollers
worn or slippery?
Replace it.
No
Is ADF roller or the
sub-roller dirty?
No
Replace the ADF roller, the
sub-roller, the feed rollers
and/or the pinch rollers.
Clean them.
Yes
Yes