US PATENT SUBCLASS 355 / 78
CONTACT PRINTING

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

78CONTACT PRINTING {15}
79  DF  .~> Superimposed carriers (e.g., montage or combination printing)
80  DF  .~> Localized contrast modification (e.g., dodging or fading) {1}
82  DF  .~> Book page copying
83  DF  .~> Light monitoring exposure control
84  DF  .~> With scanning
85  DF  .~> Exposing on sensitized printing press plate or cylinder (e.g., photocomposers) {1}
88  DF  .~> Multicolor printing
89  DF  .~> Plural exposure stations or plural machines {1}
91  DF  .~> Fluid pressure retention of carrier and receiver in exposure position {3}
95  DF  .~> Step and repeat {1}
97  DF  .~> Machine (i.e., having at least partly automatic feed) {3}
112  DF  .~> Print counting and marking
113  DF  .~> Light boxes {8}
122  DF  .~> Frames {5}
132  DF  .~> Methods

DEFINITION

Classification: 355/78

(under the class definition) Subject matter wherein the picture or other information on the carrier is transferred to a light sensitive receiver in surface engagement over the entire area of the carrier surface at least at the time of exposure to produce in the carrier by photos:graphic effect a recording of the same dimensions as that of the picture or other information on the carrier.

(1) Note. In case where there is an optical system placed between the carrier and receiver, the subject matter will appear higher in the schedule even though there is no enlargement or reduction of the size of the image.

(2) Note. For the chemical aspects of the photos:graphic contact printing art as well as other nonchemical process and article features closely related thereto, Class 430, Radiation Imagery Chemistry: Process, Composition, or

Product Thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19, for projection type copiers combined with or convertible to a contact printer.