Fig. 2-7 Movement Of Copy Paper - Canon NP-70 Service Manual

NP -70 2-13
2.6 OUTLINE OF COPY PAPER MOVEMENT
During the copying process, copy paper moves through the machine in the manner shown below.
Heater
Suction Blower
Paper Delivery Roller 1
Residual Charge Eliminator
Air Duct
Copy Paper Guide
Paper Delivery Roller 2
Copy Tra
Paper Cassett
Fig. 2-7 Movement of Copy Paper
Separation Roller
Air Deflection Plate
Transfer Corona
Feeding Guide Plate
Timing Roller
Note:
Black line represents
copy paper movement.
1)
The capacity of the paper cassette is approximately 400 sheets. The inner plate of the paper
cassette is pressed upward by two coil springs to ensure that the sheets. in the cassette are
constantly in contact with the separation claws.
2)
When the copying operation stazts, the revolving pickup roller comes down, contacts the top-
most sheet, and advances it to the timing roller.
3)
As the timing roller operates to synchronize the paper feeding and the image position on the
drum, it does not immediately operate. Instead, the paper buckles and forms a loop at the
roller.
4)
The slight buckling ensures proper feeding when the timing roller starts to rotate to feed the
paper to the drum through the feeding guide plates.
© CANON INC.
Second Printing,lune, 1974