The ornamental design for a printer, as shown and described.
FIG. 1 is a perspective view of our new design for a printer, viewed from the top front and right side;
FIG. 2 is a perspective view of the printer shown in FIG. 1, viewed from the top rear and left side;
FIG. 3 is a front view of the printer shown in FIG. 1;
FIG. 4 is a rear view of the printer shown in FIG. 1;
FIG. 5 is a left side view of the printer shown in FIG. 1;
FIG. 6 is a right side view of the printer shown in FIG. 1;
FIG. 7 is a top view of the printer shown in FIG. 1;
FIG. 8 is a bottom view of the printer shown in FIG. 1; and,
FIG. 9 is a perspective view of the printer shown in FIG. 1, viewed from the top front and right side, illustrating the printer in a different configuration.
Evenly spaced dashes in the figures represent unclaimed subject matter, while alternating long and short lines represent surface shading. Evenly spaced dashes, and alternating long and short lines, are for illustrative purposes only and form no part of the claimed design.