Method and apparatus for reducing differences in image heights o

Details Method and apparatus for reducing differences in image heights o Method and apparatus for reducing differences in image heights o

1994-10-24

1996-10-08

Fuller, Benjamin R.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347239, B41J 247, B41J 2435

Patent

active

055636470

ABSTRACT:
In a raster scanning system (ROS) of a multi-station xerographic printing device, the image height of each of the images formed from a plurality of clustered laser beams having dissimilar wavelengths is changed so that the image heights approximate each other. This is accomplished by passing one or more of the light beams through light transmissive plates having a predetermined thickness and index of refraction. The light transmissive plates can be optical filters that also one used to separate the clustered light beams based upon their wavelength and/or polarization.

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