The ornamental design for a printer, as shown and described.
FIG. 1 is a right-side perspective view of the printer;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a right-side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a left-side perspective view thereof.
The dot-dash lines and evenly spaced broken lines immediately adjacent the shaded areas depict the bounds of the claimed design, while all other evenly spaced broken lines are directed to environment. In addition, the unshaded surfaces that directly adjoin the solid line edges form no part of the claimed design. The broken lines form no part of the claimed design.