Canon PC400 Service Manual page 50

CHAPTER 3 EXPOSURE SYSTEM
c. Moving the Copyboard Forward
When the copyboard has moved in reverse and is positioned as shown in Figure 3-
105B, the start position cam pushes down the copyboard position sensor lever. When
SL2 goes ON in this position, the forward/reverse switching mechanism moves to the
position shown in the figure, causing the forward/reverse switching mechanism to
engage with the forward gear; as a result, the forward gear rotates in the direction of the
arrow, moving the copyboard forward.
3-6
COPYRIGHT © 1998 CANON INC.
Forward/Reversal
switching
mechanism
Copyboard drive solenoid (SL2)
Figure 3-105B
CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Copyboard
drive gear
Forward gear
Forward
Start position
cam
M1
Main motor