System and method for generating lines of data on a photosensitive medium for use with a display or a printing apparatus. The lines of data are generated by two or more modulated and parallel laser light beams onto a resonant pivoting torsional hinged mirror. The pivoting mirror sweeps the two modulated light beams back and forth across the photosensitive medium to provide bi-directional printing. Relative motion between the photosensitive medium and the plane of the sweeping light beam is provided by moving the photosensitive medium when used with a printing apparatus or by also orthogonally moving the sweeping plane of the light beams when used with a display device.