Problem 3: Vertical Stripes - Ricoh Pro C900 Replacement Manual

3.1.3 PROBLEM 3: VERTICAL STRIPES

Vertical stripes (less than 1 mm wide) appear, parallel to the
direction of paper feed.
CAUSE:
1. The drum unit has worn out or the drum is scratched.
2. The blade of the drum cleaning unit has worn out and cannot
clean properly.
NOTE: See the following page for an actual sample. The sample
image is not at 1:1 scale.
1. If the drum is scratched:
Replace the drum unit.
Step 1
Step 2 If replacing the drum unit does not solve the problem, call for service.
2. If the drum is not scratched but is stained with toner:
Step 1 Replace the drum cleaning unit.
Step 2 If replacing the drum cleaning unit does not solve the problem, call for
service.
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