Canon NP-70 Service Manual page 104

4-2
NP-70
1)
COPYBOARD COVER SUBASSEMBLY
This semi-rigid cover is used to hold the original firmly in position during the copy cycle. As
its lower side is coated with a reflective white material, it also provides a good background for
transparent or semi-transparent originals.
2) COPYBOARD GLASS
The copyboard glass is used as a mounting surface for the original. Along its edges are found
reference points for positioning originals of various sizes.
3) CONVENIENCE COVER
The convenience cover is a specially shaped tray-like piece, ideally suited for use when copying
pages from book or other bulky objects.
4) FRONT GLIDE RAIL
This component acts as an assembly frame member, as well as a rail member for copyboard
movement.
copyboard Locking Cam
Front Glide Rail
Fig. 4-2
Fronf Rail Components
Additionally, the front rail contains a cam used when locking the copyboard in position.
Second Printing,lune, 1974 © CANON INC.