COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001CHAPTER 4 TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS4-15 T3.9 The copy has a black line (vertical, fine).Exposure system1) Generate a halftone test print in service mode. Enter ‘5’ toCOPIER>PG>TYPE. Does the output image have a black line?NO: Suspect a fault in the exposure system. Clean it.Primary charging roller2) Clean the primary charging roller. Is the problem corrected?YES: End.Photosensitive drum3) Is there a scratch or a black line in the peripheral direction of the surfaceof the photosensitive drum?• Be sure to wipe the black line on the surface of the photosensitive drumwith a cloth coated with toner, and make sure that the black line disappears.NO: Replace the drum unit.• If there is a scratch, be sure to identify the cause.Fixing assembly4) Is there a scratch it the peripheral direction of the fixing roller?YES: Replace the fixing roller.NO: Check the fixing inlet assembly for dirt.
