Canon NP6251 Service Manual page 474

Step
5 Insert the developing assembly
locking unit from the right side (rear);
when, it is horizontal, insert it to the
left side (front).
Fix the developing assembly locking
unit with a screw.
6 Install the
multifeeder door with a screw.
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Work
door tape of the
CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 9 INSTALLATION
Remarks
Screw
9-19