Ricoh MP C6502SP Field Service Manual page 1396

5. Troubleshooting
Vertical streaks caused by contact with the
toner adhering to the guide plate
Streaks made by Paper Edges
Horizontal white streaks in small solid black
areas
Troubleshooting for Vertical streaks caused by contact with the toner adhering to the
guide plate
Symptom
Vertical streaks appear.
Condition
Scratches tend to stand out when printing on relatively stiff thick coated paper.
Cause
Paper after fusing come into contact with small convex scratches or adhering toner on the guide
plate and vertical streaks appear.
Action (overview)
1. If the problem occurs in the position of the ribs of the heat pipe entrance guide plate, clean the
heat pipe entrance guide plate ribs.
2. If the problem occurs in other places, clean the paper transport path/duplex unit.
3. If cleaning does not improve the situation, lower the fusing temperature.
Action (detail 1): Clean the heat pipe entrance guide plate ribs.
Position of the heat pipe entrance guide plate ribs [A]
1394
Item Description
Vertical streaks may appear.
Streaks appear on the prints after switching the
paper to a larger size
Horizontal white streaks may appear in the small
solid black area when printing in HH environment
(27° C 80%).