Olivetti d-Color MF2613En Service Manual page 256

(Remove the ISU cover.)
44. Open the DP top cover and remove the
screw fixing the DP rear cover.
45. Open the Document Processor and
release two hooks fixing the original
tray.
And close the Document Processor.
Service Manual
Figure 1-5-106
Hooks
Figure 1-5-107
1-5-66
2PV/2PW-2
DP top cover
Screw
Y116650-5