The ornamental design for a printer, as shown and described.
FIG. 1 is a front, top, and left side perspective view of a printer showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a section view thereof taken along line A-A of FIG. 4; and,
FIG. 9 is a front, top, and left side perspective view thereof with a bin drawn out.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.