Lensless printing system with a light bar printhead

Details Lensless printing system with a light bar printhead Lensless printing system with a light bar printhead

1997-06-25

1999-08-17

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347241, B41J 247, H04N 140

Patent

active

059401133

ABSTRACT:
There is disclosed a printing system in which an array of VCSELs as a light bar print head directly sends an array of light beams onto a photoreceptor without using an imaging optical element. In this invention VCSELs are selected to have a slowly diverging light beams. A photoreceptor is placed at a certain distance from the VCSELs where the light beam has a width equal to a desired spot corresponding to a given printing resolution.

REFERENCES:
patent: 5517328 (1996-05-01), Wilson
patent: 5818488 (1998-10-01), Tanuma et al.

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