COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)Figure 5-402 (top view)CHAPTER 5 PICK-UP/FEEDING SYSTEM5-24q : Reversing roller releasing platew : Reversing roller releasing solenoide : Duplexing motorr : Duplexing flapper solenoidt : Duplexing feeding roller 1 homeposition sensory : Horizontal registration guideu : Duplexing unit paper sensori : Duplexing feeding roller 1o : Duplexing feeding clutch!0 : Horizontal registration guidehome position sensor!1 : Reversal paper sensor!2 : Horizontal registration motorq w e r t y uio!0!1!2Download free service manual at http://printer1.blogspot.com