Canon PC300 Service Manual page 38

<OPERATIONS AND TIMING is
Copyboard posi-
tion sensor (Q902)
Copyboard position (cams)
* Copyboard is at the home
position. Reversal cam Registration cam 7
* Copyboard solenoid goes Start position cam
ON in response to a press <u
on the Copy Start key or
insertion of copy paper.
ever
Copyboard position sensor (Q902): OFI
* Copyboard is at the start
position.
* Copyboard drive solenoid
goes OFF.
* Scanning lamp ON.
* The copyboard drive
solenoid goes ON about
0.5 second after the Copy
Start key is pressed.
¢ AE measurement starts.
« Registration roller goes
ON (by registration cam);
see p. 3-34,
» Copyboard is at the reversal
position.
« Copyboard drive solenoid
goes OFF.
+ After a specific period,
copyboard drive solenoid
goes ON.
« Pick-up solenoid goes ON
(continuous copying).
* Scanning lamp OFF.
Continuo copying
Q902:0N — OFF
+ For the last copy, the copy-
board drive solenoid goes
OFF at the copyboard
home position.
Q902:0N OFF
Table 3-2
COPYRIGHT © 1994 CANON INC, CANON PC300/320/325, FC210290 REV.0 JULY 1994 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-11