Ricoh FT7770 Service Manual page 237

6. Remove the development roller [A] and the paddle roller
7. Reassemble when the development roller and the paddle
stalled, do the following:
- Position the development roller so that the magnet angle pin [C] fits
into the flat surface [D] of the development roller shaft.
- Position the development roller and the paddle roller so that the
notch [E] on the bearing casing fits into the projection [F] of the
frame.
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[B] .
roller are in-