Ricoh M281 Series Service Manual page 153

3. Insert a flathead screwdriver into [A] to release the hook on the inside of the controller
cover [B].
4. Release the hook by opening the right side of the cover, and then remove the cover [A]
by rotating it in the direction of the blue arrow.
SM
OCR Unit Type M13 (D3AC-23, 24, 25) (MP 501/601 Only)
2-125 D255/D256/M281/M282