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Confidential
(2) Use the numbered markers next to the drum roller to find the mark on the drum. For
example, a dot in column 2 on the check sheet means that there is a mark in drum
region “2”.
Fig. 2-13
(3) Turn the edge of the drum unit towards you while looking at the drum surface to find the
mark.
Fig. 2-14
(4) Wipe the surface of the drum gently with a dry cotton swab until the mark or foreign
material on the surface comes off.
Fig. 2-15
Note:
Do not clean the exposure drum surface with anything sharp like a ball pointed pen.
