Casio UP-250 Technical Manual page 104

4. Attach the paper feed reduction gear to its shaft as shown in the second illustration below.
Make sure that the reduction gear is closer to the frame than the roller assembly gear.
5. Next, insert the J feed roller shaft holder (right) into the frame as shown in the illustration.
(Paper feed
roller assembly)
6. Fix the J feed roller shaft holder (left) onto the paper feed roller assembly's shaft, insert it in
the frame, and lock it with the RE.
RE (2.3)
J feed roller
shaft holder
(left)
Note:
The right J feed roller shaft holder, which is fixed to the paper feed roller assembly, is inserted
into the frame first; then the left J feed roller shaft holder is attached.
J feed roller shaft holder (right)
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Paper feed
reduction gear