FIG. 1 is a front view of an activity indicator for a touch-based user interface for an image processing office machine, the broken line drawing of an image processing office machine is for illustrative purposes only and forms no part of the claimed design;
FIG. 2 is a front view of a second embodiment thereof, shown separately for clarity of illustration;
FIG. 3 is a front view of a third embodiment thereof, shown separately for clarity of illustration;
FIG. 4 is a front view of a fourth embodiment thereof, shown separately for clarity of illustration;
FIG. 5 is a front view of a fifth embodiment thereof, shown separately for clarity of illustration;
FIG. 6 is a front view of a sixth embodiment thereof, shown separately for clarity of illustration;
FIG. 7 is a front view of a seventh embodiment thereof, shown separately for clarity of illustration; and,
FIG. 8 is a front view of a eighth embodiment thereof, shown separately for clarity of illustration.