The ornamental design for a printer, as shown and described.
FIG. 1 is an upper perspective view of our new design for a printer, viewed from the front and right side;
FIG. 2 is an upper perspective view of the printer shown in FIG. 1, viewed from the 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 another upper perspective view of the printer shown in FIG. 1, viewed from the front and right side, illustrating the printer in a different configuration.
The broken lines shown in the figures are for illustrative purposes only and form no part of the claimed design.