FIG. 1 is a perspective view of a photosensitive drum unit;

FIG. 2 is an enlarged partial perspective view of FIG. 1;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is an enlarged left-side view of FIG. 5;

FIG. 7 is a rear view thereof;

FIG. 8 is bottom view thereof;

FIG. 9 is an enlarged partial top view of FIG. 4 ;

FIG. 10 is an enlarged partial rear view of FIG. 7; and,

FIG. 11 is an enlarged partial bottom view of FIG. 8.

The broken line showing is for illustrative purposes only and forms no part of the claimed design.