Ricoh 170 / 180 - Manual (Page 119)

Page Condition
Do not place damaged pages in the automatic document feeder.
Originals that contain the following materials and photographs should not be
placed in the document feeder. Make copies of these originals and scan the
copies.
NOTE: Copies made with a copier that uses silicone oil may cause a misfeed. To
avoid this, do not scan such copies until five or ten minutes after copying.
DOCUMENT TYPE
108