Ricoh IM 550F

4.Replacement and Adjustment
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3. Remove the paper feed tray [A] of the optional paper feed unit by pulling it out.
4. Turn over the optional paper feed unit [A], and then remove the board cover [B]. (hook×2)
5. Release the harness of the mainboard [A] from the harness guides.
6. Disconnect the five connectors from the main board [A].