US PATENT SUBCLASS 399 / 222
.~ Development

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


399 /   HD   ELECTROPHOTOGRAPHY

130  DF  IMAGE FORMATION {30}
222.~ Development {5}
223  DF  .~.~> Plural diverse (e.g., color) {6}
234  DF  .~.~> Development prevention {1}
236  DF  .~.~> Applicator speed
237  DF  .~.~> Liquid development {8}
252  DF  .~.~> Dry development {10}

DEFINITION

Classification: 399/222

Development:

(under subclass 130) Subject matter wherein an apparatus is provided for making visible a latent image by the application of developer material.

(1) Note. Developer material may consist of magnetic or nonmagnetic toner particles, toner particles mixed with a liquid carrier material, or magnetic or nonmagnetic toner particles mixed with magnetic particles that act as carriers under the influence of a magnetic field. Toner may also be called marking particles.

SEE OR SEARCH CLASS

347, Incremental Printing and Symbolic Information,

158, for delivering to the recording medium visible particles to develop a latent image.

427, Coating Processes,

457+, for related processes used to achieve the same result as the apparatus herewithin. Processes primarily classifiable in Class 427, subclasses 457+, focus on developing and fixing and other coating steps, but may also claim latent image-forming steps. For purposes of classification, claims which recite significant amounts of apparatus of the type used in electrophotography are not properly classifiable in Class 427, but may be classified herewithin depending on whether or not an image formation apparatus is claimed.

430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, for developing methods. OTHER CLASSIFICATION SYSTEMS:

ipc{2}G03G15/06, for developing.

jpofiG03G15/06, for developing.

epcG03G15/06, for developing.