CHAPTER 4 IMAGE FORMATION SYSTEMCOPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)4-364) Pull out the drum unit [3] slowly to thefront.Figure 4-304Caution:1. Take care not to damage the photo-sensitive drum.2. The photosensitive drum is highlysusceptible to light. Exposure even toroom light can lead to white spots orblack bands on the copies.3. Do not make a copy without the drumunit installed. Otherwise, excessloads can cause the gears of the drivesystem to skip teeth, generating ab-normal noise.3. CleaningIf the surface of the photosensitive drumis soiled, wipe it with a flannel cloth coatedwith toner. (Do not use paper, lint-free or oth-erwise.)Caution:Do not dry wipe the drum or do not use asolvent.Do not use drum cleaning powder.[3]
