Canon NP6621 Service Manual page 86

OPERATIONS AND TIMING
3. Basic Sequence of Operations for
the Lens Drive System (enlargement/
reduction)
In enlargement/reduction mode, the lens is
always returned to home position first before being
moved to the appropriate position for the selected
reproduction ratio. This is true when the ratio is
reset to DIRECT.
Lens motor (M3)
Change solenoid (SL1)
Lens
Lens home position sensor (PS2)
3–30
Power switch
ON
 

 
 
Enlarge Reduce
Figure 3-204
COPYRIGHT © 1998 CANON INC.
Ratio change Copy Start key
Enlargement selected
S T B Y
 
CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
ON
I N T R