Paper Edges Are Stained

The leading edge of paper is stained [A] for a width of 10 mm (0.4 inches) at the area 25 mm (0.1 inches) and 94 mm (3.7 inches) away from its center.

Cause:

The paper feed roller is stained with toner.

The entrance roller, which provides the path for the shift tray and proof tray, is especially prone to get stained.

Solution:

For information on cleaning the paper feed rollers, see 249 First Stacker: Paper Path 1/ 252 Second Stacker: Paper Path 1.