Table 3-3 Explanation Of ~Copy~ Flowchart - Canon NP-70 Service Manual

3-20
NP -70
Block Actions Occurring
In this'step the copyboard motion stops as it returns to the starting position.
If no further copying operation are to be performed, capacitor C 16 will start
its 8.0 second discharge time, known as the Second Feed Interval. In the case
of repeat copying, C 16 does not start to discharge but remains held for the next
STEP 15 CF
copy cycle by voltage through D 16 (see STEP 14CH ).
(both
Copy paper now finishes exiting the copier and the jam detection circuit resumes
STEP 16CF
its quiescent condition (see STEP 18CH ).
last and repeat)
Although the drum position and time are different, this step is the same as
STEP 17CF
STEP 20CH
;that is, completion of the feed interval as capacitor C16 com-
(last only) pletes its discharging.
STEP 17CF
The copyboard is released so that the next copy cycle can begin as the drum
reaches 0° . This is the same as STEP
3C
(repeat only;
STEP 18CF
The delay hold path for relay K7 is broken at this time as in STEP 6S
(last only)
The second or later copy cycle is begun as the copyboard begins advancing.
STEP 18CF
This is the same as STEP 4C
(repeat only)
The alternate path for the main motor is broken, stopping the drum.
STEP 19CF
This is the same as STEP 7S
The machine is now in STANDBY awaiting the depressing of COPY button
to start the next copy operation.
END
Table 3-3
Explanation of ~ COPY) Flowchart
Second Printing~June, 1974
© CANON INC.