Ricoh M281 Series Service Manual page 218

Exterior Covers (MP 501/601)
6. Open the rear lower cover [A], and then release the hook of the right lower cover [B] by
rotating it in the direction of the blue arrow.
7. Release the hooks [A] and [B].
8. Remove the right lower cover [A] by rotating it in the direction of the arrow.
D255/D256/M281/M282 4-24 SM