Pen for a printer

FIG. 1 is a front left perspective view of a first pen having a housing.

FIG. 2 is a front view of the pen of FIG. 1 .

FIG. 3 is a rear view of the pen of FIG. 1 .

FIG. 4 is a right side view of the pen of FIG. 1 .

FIG. 5 is left side view of the pen of FIG. 1 .

FIG. 6 is a top view of the pen of FIG. 1 .

FIG. 7 is a bottom view of the pen of FIG. 1 .

FIG. 8 is a rear right perspective view of the pen of FIG. 1 .

FIG. 9 is a front left perspective view of a second pen having a housing, electrodes and a printhead.

FIG. 10 is a front view of the second pen of FIG. 9 .

FIG. 11 is a rear view of the second pen of FIG. 9 .

FIG. 12 is a right side view of the second pen of FIG. 9 .

FIG. 13 is left side view of the second pen of FIG. 9 .

FIG. 14 is a top view of the second pen of FIG. 9 .

FIG. 15 is a bottom view of the second pen of FIG. 9 ; and,

FIG. 16 is a rear right perspective view of the second pen of FIG. 9 .

The features shown in broken lines depict environmental subject matter and form no part of the claimed design.