COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 4 IMAGE FORMATION SYSTEM4-402. Removing the Drum Motor1) Remove the five screws, and detachthe drive case.q Screws w Drive caseFigure 4-8022) Remove the drive gear shaft, andremove the four screws; then, detachthe drum motor.q Screw w Drum motorFigure 4-8033. Removing the Developing RotaryPosition Sensor1) Remove the screw, and detach thedeveloping rotary position sensor.q Screww Developing rotary position sensorFigure 4-804wqqwqqwDownload free service manual at http://printer1.blogspot.com