Kyocera TASKalfa 266ci Service Manual page 259

(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.
Figure 1-5-114
Hooks
Figure 1-5-115
1-5-70
DP top cover
Screw
2PZ-1