COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 8 INSTALLATION8-10No.2122232425WorkHold the yellow toner cartridge as shown(level), and insert it fully to the end.While pushing the yellow toner cartridgetoward the rear, shift the locking lever back toits initial position to secure it in place.Close the color toner replacement cover.Perform the same steps for magenta andcyan to install each toner cartridge. (Pressthe turret button used in step 20) to changefrom yellow to magenta, and press it onceagain to change to cyan.)Close the front door.RemarksDownload free service manual at http://printer1.blogspot.com