Patent ID: 7133061

Claim:
A method of generating lines of data on a light sensitive medium comprising the steps of: providing a light sensitive medium; oscillating a reflective surface about a first pivot axis; directing a multiplicity of modulated and parallel light beams onto said oscillating reflective surface; reflecting said multiplicity of modulated and parallel light beams from said oscillating reflective surface to sweep said light beams back and forth across said light sensitive medium in a forward and a reverse direction; providing relative orthogonal movement between said light sensitive medium and said forward and reverse directions of said sweeping light beams; and generating a multiplicity of selected data lines on said light sensitive medium as said multiplicity of modulated and parallel light beams sweep across said light sensitive medium, wherein said multiplicity of light beams is two light beams and wherein said generating step comprises the steps of: generating a first line of data with a first one of said two light beams and a second line of data with a second one of said two light beams as said first and second light beams move in said forward direction across said light sensitive medium; and generating said second line of data with said first light beam and said first line of data with said second light beam as said first and second light beams move in said reverse direction across said light sensitive medium.