Ricoh PRO 8100S Operating Instructions Manual page 29

Cause:
When a relatively stiff, thick paper is delivered, the entrance guide board for the transfer unit is warped
toward the intermediate transfer belt due to the stiffness of the paper. The edge of the entrance guide
board comes into contact with the toner on the belt to cause images to be scratched and paper edges to
be soiled.
This may occur if:
• Paper with a thickness equivalent to Paper Weight 7 is used
• Paper with its grain parallel to the paper feed direction is used. For example, A3/DLT long grain
paper is delivered, A4/LT short grain paper is delivered from its long edge, or A4/LT long grain
paper is delivered from its short edge.
• Paper is stored at low temperature or humidity
Solution:
Change the direction of paper grain for paper delivery.
• When storing paper at low humidity, wrap the paper in coated paper or a plastic sheet.
CNT008
Toner Spotting/Staining
27