Importance

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Abstract

Disclosed herein is a laser printer for printing alphanumeric characters and the like on a photosensitive surface. An acoustooptic cell, in cooperation with its driving circuitry, serves to diffract an incident laser beam to produce two or more first-order diffracted beams, and to deflect such beams in a common plane through discrete angular ranges to produce tandem scan lines on a photosensitive surface. A data source, such as a character generator or programmed computer, is used to modulate the intensity of each of the diffracted beams independently so that the tandem scan lines collectively define a full column (or row) of picture elements of information to be printed.

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First Claim