COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 4 IMAGE FORMATION SYSTEM4-39A. Drive System1. Removing the Drum Drive Unit1) Perform steps 1) through 7) on p. 4-43to remove the upper cover, rear cover,shielding box, heat discharge fan 1,and rear cover stay.2) Perform step 2) on p. 4-56 to removethe high-voltage PCB 1.3) Perform step 3) on p. 4-55 to removethe DC controller PCB.4) Perform step 2) on p. 4-58 to removethe high-voltage PCB 2.5) Perform step 3) on p. 4-58 to removethe sub transfer 2.6) Perform step 3) on p. 4-58 to removethe sub transformer 1.7) Perform step 2) on p. 4-60 to removethe color toner cartridge level sensor.8) Remove the eight screws, and discon-nect the connector; then, remove thedrum drive assembly.q Screws w Connectore Drum drive assemblyFigure 4-801qweWhen the drum drive assembly ismounted, the gear of the drive assem-bly and the flags of the developingrotary assembly can interfere witheach other, breaking the flags. Toavoid this problem, be sure to movethe flags of the developing rotaryassembly so that they are out of viewinside the copier before mounting thedrum drive assembly.Caution:FlagsDownload free service manual at http://printer1.blogspot.com
