The ornamental design for a tonercartridgeholder, as shown and described.
FIG. 1 is a front elevation of a toner cartridge holder according to the present invention;
FIG. 2 is a rear elevation thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevation thereof;
FIG. 6 is a left side elevation thereof; and,
FIG. 7 is a top, front and right side perspective view thereof.
The evenly broken lines depict environmental subject matter only and form no part of the claimed design. The unevenly broken lines (longer line, space, shorter line, space, longer line) show an unclaimed boundary.