I claim the ornamental design for a printer, as shown and described.
FIG. 1 is a top, front, left side perspective view of a printer showing my new design;
FIG. 2 is an enlarged top, front, left side perspective view taken along the line 2—2 in FIG. 1;
FIG. 3 is a left side elevation view of the printer of FIG. 1;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a right side elevation view thereof; and,
FIG. 6 is a top plan view thereof.
The broken lines in the drawings are environmental and are for illustrative purposes only, forming no part of the claimed design. The dash dot dash lines are boundary lines of the claimed design.