Canon NP6012 Service Manual page 119

Wg OPERATIONS AND TIMING
D. Pick-Up Operation
1. Operation
When an original is placed on the origi-
nal tray and the Copy Start key is pressed,
the following sequence of operations takes
place:
1 Preparing for Pick-Up Operation
When an original is placed on the origi-
nal tray, i.e., the original placement sen-
sor (PI3) turns ON, the pick-up roller
rotates counterclockwise and the paper
guide holds the original in place.
1st original
3 Original tray
Paper guide
Figure 3-708
2 Pick-Up Separation
When the Copy Start key is pressed, the
pick-up roller rotates clockwise, and
picks up the first original (topmost) and
forwards it as far as the registration
roller. (The separation pad ensures that
only one original is picked up.)
Pick-up roller
Ist original
Separation pad
Registration roller
Figure 3-709
3-74 COPYRIGHT © 1995 CANON INC.
3. Arching
The first original is butted against the
registration roller so that it arches.
1st original
Registration roller
Figure 3-710
4 Feeding Operation 1
The feeding belt is moved so that the
leading edge of the first original comes
into contact with the delivery sensor
(P11). (In the case of a LGL original, the
original is moved about 15 mm farther
after it has come into contact with the
delivery sensor.)
At the same time, the pick-up motor
(M2) is rotated counterclockwise to pre-
pare for picking up the second original.
Delivery sensor
He?
it, O1O NOW
istoriginal Feeding belt
Figure 3-711
Pia \ Original tray
Paper guide
Figure 3-712
CANON NP6O12/NP6O12F /NP6212 REV.{ SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON)