We claim the ornamental design for a printer-scanner, as shown and described.
FIG. 1 is a front perspective view of a design for a printer-scanner;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The broken lines in the drawings are environment and are for illustrative purposes only, forming no part of the claimed design. The long dash-short dash lines are boundary lines bounding areas of claimed subject matter.