US PATENT SUBCLASS 347 / 129
.~.~ Photo scanning

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

111  DF  ELECTRIC MARKING APPARATUS OR PROCESSES {3}
112  DF  .~ Electrostatic {8}
129.~.~ Photo scanning {7}
130  DF  .~.~.~> Light emitting diodes
131  DF  .~.~.~> Dot density or dot size control (e.g., halftone)
132  DF  .~.~.~> Beam generator driving means {1}
134  DF  .~.~.~> Optical elements interposed between record receiver and beam generator {2}
138  DF  .~.~.~> Housing or mounting
139  DF  .~.~.~> Record receiver or conveyor means therefor
140  DF  .~.~.~> Developer or charger mechanism

DEFINITION

Classification: 347/129

Photo scanning:

(under subclass 112) Subject matter wherein at least one writing beam is progressed line by line or point by point (e.g., LEDs) to either charge, or discharge, the medium in imagewise configuration in accordance with the information signal representing the image.

(1) Note. This subclass is distinguished from Class 399, Electrophotography, due to the electrical information signal modulating the writing beam (i.e., exposure).

SEE OR SEARCH THIS CLASS, SUBCLASS:

121+, for an electrostatic recorder using a CRT as an exposure means for the photoconductor.

225+, for a general radiation marking apparatus using light to scan a record receiver.

SEE OR SEARCH CLASS

399, Electrophotography, 9+, for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling.