Canon NP6251 Service Manual page 468

Step
12 Insert the drum rotating tool into the
cut-in of the drum shaft. While holding
the rotating tool so as to prevent the
drum from rotating counterclockwise,
remove the drum fixing screw and the
drum fixing (cut-in member).
Caution:
1. If you let the drum to rotate coun-
terclockwise, the cleaning blade
will not be in contact with the
drum correctly, causing cleaning
faults. To prevent such faults, be
sure to hold the drum in place
before removing the drum fixing
screw.
2. Do not expose the photosensitive
drum to light for longer than 30
min.
3. Do not ever expose the photo-
sensitive drum to direct rays of
the sun.
4. Whenever placing the photosen-
sitive drum or the process unit
outside the machine, be sure to
cover it with six or more sheets of
copy paper to protect it against
light.
13 Slide out the fixing/feeding assembly
while paying attention to the hopper.
Place the drum protection sheet that
comes with the machine to protect
the rubber roller of the registration
roller assembly and the drum.
14 Slide out the process unit to the front,
and insert the drum rotating tool that
comes with the machine in-to the
front of the drum shaft; while rotating
the drum clockwise, check to make
sure that the drum is free of damage.
COPYRIGHT © 1997 CANON INC.
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CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 9 INSTALLATION
Remarks
Drum shaft
Cut-in
Rotating tool
9-13