Olivetti d-Color MF2552 plus Service Manual page 444

12. Release the lock part and then remove
the upper cover B by sliding it to the left.
13. Remove two screws and then remove
the operation panel lower cover.
Service Manual
Lock part
Upper cover B
Screw
Screw
1-5-42
Figure 1-5-77
Operation panel
lower cover
Figure 1-5-78
2NP-5
Y116141-8