The ornamental design for a cartridge for a scanningdevice, as shown and described.
FIG. 1 is a front and left side perspective view of a cartridge for a scanning device in accordance with our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a right side elevational view thereof.
The broken lines in the figures are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.