FIG. 1 is a front perspective view of a solid ink stick for a color printer showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side is identical;

FIG. 4 is a end elevational view thereof, the opposite end being identical;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front perspective view of a second embodiment of FIG. 1;

FIG. 7 is an end elevational view of FIG. 6, the opposite end being identical;

FIG. 8 is a is a bottom plan view of FIG. 6; and,

FIG. 9 is a side elevational view of FIG. 6.

The broken line portions of FIGS. 6-9 are environmental only and form no part of the claimed design.