Ricoh Aficio SP C231, Service Manual, Page: 48 / 247

SCANNER AND OPTICS
2-8
C231 SM
2.1.6 SEPARATION MECHANISM (ADF)
The feed roller [A] and the separation roller [B] prevent more than one sheet of
paper from feeding into the scanner at the same time.
When the feed roller feeds a sheet of paper, both the feed and the separation
rollers rotate in the feed-in direction. However, if two or more sheets are between
these rollers, the separation roller rotates in the feed-out direction to prevent the
lower sheet from being fed into the scanner.
C231D508.WMF
[A]
[B]