Ricoh D124-17 Service Manual page 328

4. Replacement and Adjustment
8. The idle rollers can be removed easily by opening a support on either side.
Reinstallation
1. When you re-assemble the roller housing, match the hooks [A] and bosses [B] with their contact
points, and then press the halves in the opposition direction.
2. The holes [C] align when the halves are locked correctly.
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