Canon DADF-B1 Service Manual page 49

CHAPTER 2 BASIC OPERATION
4. When the pre-registration sensor (U502) detects the trailing edge of the original (OFF), the feed
motor (M2) slows down.
The feed motor stops when the trailing edge of the original reaches the image leading edge
position, and scanning starts when the original reaches and stops at a specific position.
5. When scanning ends, the 2nd original is separated; the separation motor is stopped once 100
msec after the separation sensor has turned on.
When the reversal inlet sensor (SR5) detects the leading edge of the original (ON), the reversal
delivery motor (M3) starts to rotate clockwise.
The reversal delivery flapper remains closed while the reversal delivery motor is rotating
clockwise.
Separation sensor
6. When the reversal delivery outlet sensor (U505) detects the leading edge of the original (ON),
the feed motor (M2) stops, and then starts to rotate counterclockwise, moving the original to the
copyboard glass.
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COPYRIGHT © 1999 CANON INC. CANON DADF-B1 REV.0 APR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
Figure 2-259
Figure 2-260
Figure 2-261