Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent
1997-05-16
1999-02-02
Le, N.
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
347240, 358463, G11B 2018
Patent
active
058672036
ABSTRACT:
A method of reducing EMI when printing an image with a printer having a laser includes determining edge pels located near an edge of the image, determining interior pels located within the image and not edge pels, forming edge pels by operating the laser at a first duty cycle and forming at least a portion of a plurality of interior pels by operating the laser at a second duty cycle longer than the first duty cycle. Another aspect is a method of reducing EMI in a printer when forming a latent image on a photoconductive member by gating a light source ON and OFF, including the steps of identifying a first region near an edge of an image to be formed, the first region being formed by gating the light source at a first frequency; and identifying an interior region of the image to be formed, the interior region being formed by gating the light source at a second frequency lower than the first frequency.
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Jones Christopher Dane
Overall Gary Scott
Wade Thomas Campbell
Wright Phillip Byron
Le N.
Lexmark International Inc.
McArdle, Jr. John J.
Pham Hai C.
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