User Guide

3–32
OPERATIONS AND TIMING
COPYRIGHT © 1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Signal
SCHP
Description
Registration clutch ON
Scanner reverse OFF 0.1 sec later
Scanner sensor
PS1 Scanner
home position
sensor
Scanner
Forward
Reverse
▲
2. Relationship between Scanner Sensors and Signals
Table 3-201
Reference:
The timing at which the registration clutch is turned ON is determined in relation to when the Copy Start
key is pressed or when the scanner is moved forward.
3. Basic Sequence of Scanner Operations
▼
Figure 3-206
LSTR
INTR
Power switch
ON
Copy Start key
ON
STBYWMUP SCFW SCRV SCFW SCRV
AER
*
Scanner home position
sensor (PS1)
Registration sensor (PS6)
Scanner
Scanning lamp
Forward
Reverse
*The scanner is returned to home position at power-on whenever the scanner is not at home position.
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