Ricoh IM 550F Field Service Manual page 283

4.Replacement and Adjustment
Release the lock lever [A] by rotating it towards you, and then remove the toner cartridge [B].
4.
Release the two hooks from the operation panel arm upper cover [A].
5.
Remove the operation panel arm upper cover [B].
6.
•
Be careful not to damage the hooks on the inside of the operation panel arm upper cover
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