Brother 1240, HL-1030, 1250 service manual Photosensitive drum

CHAPTER 6 TROUBLESHOOTING

NOTE:

Clean the drum unit as follows:

(1)Remove the toner cartridge from the drum unit Place the printing samples in front of the drum unit, and find the exact position of the image defect.

Drum unit

Position of smudge on the drum

94mm interval

Printing sample

Fig. 6-7

(2) Turn the drum gear by hand while looking at the surface of the photosensitive drum.

Photosensitive drum

Fig. 6-8

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

Photosensitive drum

Fig. 6-9

!CAUTION:

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

•Use cleaning liquid which is a 50-50 mixture of ethyl alcohol and pure water.

6-35