Canon NP-70 Service Manual page 185

NP-70
4-83
3) PULLEYS A ^- F
Rotate freely for smooth travel of the separation belt.
4) BELT CLEANER
A felt pad removing toner particles adhering to the separation belt.
5) INSTALLATION STUD
Whenever removing or installing the Paper Separating Subassembly, the separation belt should
be passed over this stud to prevent the belt from slipping off the pulleys. After installing the
subassembly, the belt is removed from the stud and placed on the rubber roller portion of
the separation roller.
6) RELEASE LEVER
This lever is a convenient press point for controlling the release of tension on the belt for
such actions as subassembly removal, jammed paper removal, etc.
4.12-3
REMOVAL/INSTALLATION ACTIONS
1) SUBASSEMBLY REPLACEMENT
Whenever performing removal/installation of the complete subassembly observe the following:
a) Swing the Copy Conveying Assembly down for removal of the subassembly.
b) Before loosening the subassembly mounting screws, move the separation belt from the
separation roller to the installation stud. Do this by passing a fmger between the belt and
roller and, while controlling belt tension with the release lever, pull the belt outward until
it can be seated in the installation stud groove.
c) When removing/installing the subassembly, be careful not to touch the drum surface.
d) After installation, make sure that the belt is released to contact the separation roller.
2) SEPARATION BELT INSTALLATION
The easiest method for installing the belt will depend on each serviceman's judgement. How-
ever, there is only ONE correct path over which the belt runs. The path is as follows:
a) Starting with the belt held in the groove of pulley A, it next passes over the top of pulley
B (between pulley B &the release lever).
b) From the top of pulley B, the belt goes down across the face of the cleaner pad and into
the groove of pulley C at the drum side.
c) From pulley C, the belt passes under pulley D and, then, upward to pulley E.
d) The belt goes across the top of pulley E and down to pulley F, where it passes on the
under side.
© CANON INC..
Second Printing-June, 1974