2. Replacing the Drum Heater1) Remove the photosensitive drum from the process unit.2) Remove the two mounting screws q, and remove the flange w at the front.Figure 4-314After removing the photosensitive drum, wrap about five to six sheets of copy paperor the drum protection sheet kept near the waste toner case around thephotosensitive drum to protect the photosensitive drum from dirt and scratches.3) Pull out the flange from the front, and disconnect the connector; then, remove thedrum heater from the photosensitive drum, and remove the drum heater.3. Installing the Photosensitive DrumInstall the photosensitive drum by reversing the steps used to remove it, while payingattention not to soil or damage its surface.F. Potential Sensor Assembly1. Removing the Potential Sensor Assembly1) Remove the blank exposure lamp assembly from the copier. (See p. 4-41.)The potential sensor assembly and the blank exposure lamp assembly areconstructed as a single entity.q wCOPYRIGHT © 1997 CANON INC. CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 4 IMAGE FORMATION SYSTEM4-44Caution:Caution:
