Ricoh D124-17 Service Manual page 268

4. Replacement and Adjustment
3. At the rear, locate the slot rimmed with white plastic [A]. This is where the FFCs will be re-inserted.
4. At the front, push the ferrite cores on the FFCs down and away from the edge connectors as shown
at [B].
5. Raise the CIS unit, fit the tabs on the left end [A] and right end [B] into the channels in the frame,
and then slowly lower the CIS unit.
6. At the rear [A], use the short end of the Allen key to pull each FFC [B] through the slot.
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