4–39COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)MECHANICAL SYSTEMB. Primary Charging Assem-bly1. Removing the Primary Charging Unit1) Remove the drum unit from the body.2) Slide the locks q found on the top of the drumunit in the direction of the arrows.Figure 4-5033) While rotating the primary charging unit w inthe direction of the arrow, remove it togetherwith its holder.Figure 4-5045 64 51122. Cleaning the Cleaning Pad and thePrimary Charging Roller1) Remove the primary charging assembly unit.2) As in Figure 4-505, place the primary chargingassembly, and clean the cleaning pad e with acotton swab r or folded lint-free paper.Caution:• Dry-wipe only. Do not use water, alcohol,solvent, or any alcohol- or solvent-relatedagents.• When dry-wiping, use strokes in one directiononly.Figure 4-5053) Then, clean the primary charging roller t withlint-free paper y while rotating the roller.Caution:• Dry-wipe only. Do not use water, alcohol,solvent, or any alcohol- or solvent-relatedagents.• When dry-wiping, move in one direction only.Figure 4-506
