D. Attaching the Drum UnitCOPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON) 8-9CHAPTER 8 INSTALLATIONWorkUnpack the drum unit, andremove the light-blockingsheet.Remove the primary chargingroller releasing spacer.Set the drum unit to the copier,and fix it in position using theknob used to keep the dummydrum.Fill out the label, and attach itto the drum unit cover.Check/RemarksTake care not to damage the surface of the drumand not to touch the primary charging roller.Be sure to insert the drum unit straight along thecopier’s rail.Step1234Releasing spacerReleasing spacer