USER’S GUIDE

Question

Black spots appears on the printed paper at 94mm intervals.

Fig. 7-17 Black Spots

Recommendation

If toner remains stuck on the drum, wipe it off gently with a cotton swab. Replace the drum unit if the drum is scratched or deteriorated.

Clean the drum unit as follows;

1.Place a printed page in front of the process unit, and find the exact position of the image defect.

position of smudge o

on the drum 94mm interval

Fig. 7-18

2.Turn the drum gear by hand while looking at the surface of the drum until you find the cause of the problem.

Fig. 7-19

3.Wipe the surface of the photosensitive drum with a cotton swab until the dust or paper on the surface of the drum comes off.

Fig. 7-20

Do not wipe the surface of the photosensitive drum with something sharp. (ball-point pen etc.)

✒Note

The drum unit is a consumable, and it is necessary to replace it periodically.

7-18