Fig. 4-106 Copy Selector Operation (A); Fig. 4-107 Copy Selector Operation (B) - Canon NP-70 Service Manual

4-94
NP -70
Copy Button
Start Shaft
Microswitch
MS7
o--
0
0
0
0
Projection A
(a) Before Copy Button is Depressed
Release Arm
Projection B
(b) After Copy Button is Depressed
Fig. 4-106 Copy Selector Operation
(AJ
d) Due to the actuation of MS7, copy operation is started and the copyboard will start its
reciprocation (after 5 secs.). The forward movement of the copyboard frees the selector
advance lever (on the copier body) and, due to tension, the pawl drive plate moves to ad-
vance the ratchet wheel. As the wheel moves, projection A (see Fig. 4106) slips over the
advancing tooth to prevent the wheel from returning (see Fig. 4-107).
copyboard Locking
Cam
~'
Selector
Advance Lever
Drive Stud
Counter Pawl
Link Stud
Drive Stud
Pawl Drive Plate
Ratchet Wheel
Start Shaft
Disengaging Stud
Fig. 4-107 Copy Selector Operation
(BJ
Second Printing~lune, 1974
© CANON INC.