FIG. 1 is a perspective view of a hand-held portable printer showing our new design; FIG. 2 is a front elevation view of the printer shown in FIG. 1; FIG. 3 is a rear elevation view of the printer shown in FIG. 1; FIG. 4 is a left side elevation view of the printer shown in FIG. 1; FIG. 5 is a right side elevation view of the printer shown in FIG. 1; FIG. 6 is a top plan view of the printer shown in FIG. 1; and, FIG. 7 is a bottom plan view of the printer shown in FIG. 1.