US PATENT SUBCLASS 347 / 171
THERMAL MARKING APPARATUS OR PROCESSES

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

171THERMAL MARKING APPARATUS OR PROCESSES {20}
172  DF  .~> Multicolor {2}
179  DF  .~> With correction or erasing means
180  DF  .~> Block driving {2}
183  DF  .~> Gradational recording {1}
185  DF  .~> Preheating {2}
188  DF  .~> Density control {7}
197  DF  .~> Recording means engaging or holding means {1}
199  DF  .~> Electroconductive recording means
200  DF  .~> Specific resistance recording element type {8}
211  DF  .~> Having driving circuitry for recording means
212  DF  .~> Pre or post image recording treatment
213  DF  .~> Having an intermediate medium for transferring ink
214  DF  .~> Ink cassette or cartridge
215  DF  .~> Record receiver and transfer medium feeding or driving means {1}
217  DF  .~> With transfer medium or driving means therefor
218  DF  .~> Record receiver driving means {1}
220  DF  .~> Platen or engaging means therefor
221  DF  .~> With recording medium
222  DF  .~> Housing or mounting
223  DF  .~> Including cooling device

DEFINITION

Classification: 347/171

THERMAL MARKING APPARATUS OR PROCESSES:

(under the class definition) Subject matter wherein a recording means (e.g., thermal head) is heated or transmits an electrical heating current to a conductive record receiver or transfer material to produce a symbol or mark upon a record receiver by the reason of the receiver becoming scorched, burned, marked, or otherwise thermochemically changed.

(1) Note. The use of an optical radiation energy beam to record on a heat sensitive or photosensitive paper is excluded from this subclass.

(2) Note. Thermal print head having heating elements used as heaters for printing incremental information is classified in this class, subclasses 200+; and not in Class 219, Electric Heating, subclasses 120 and 543. Class 219 is provided for generic electric heaters, per se, or for significant structural details of a generic electric heater in combination with a printing or reproducing device.

(3) Note. Related subject matter involved the use of heat for causing an intelligible character to be imprinted on a record medium by a type-member is classified in Class 400, Typewriting Machines.

(4) Note. The record may be produced by bringing the heated recording means in contact with the record receiver either directly or indirectly through an ink transfer medium.

SEE OR SEARCH THIS CLASS, SUBCLASS:

113, for an electrostatic recorder wherein heat is applied to a charged medium to cause plastic deformation of the medium. 163, for electrochemical recording.

224+, for the use of a radiation energy beam to record on a heat sensitive or photosensitive medium.

SEE OR SEARCH CLASS

101, Printing, appropriate subclasses for related subject matter, particularly

288, for web and subclasses 483+ for processes.

118, Coating Apparatus, appropriate subclasses for applying a coating surface on a base.

219, Electric Heating,

216, for printing or reproduction device.

271, Sheet Feeding or Delivering, appropriate subclasses for generic sheet feeding or delivering apparatus.

346, Recorders,

76.1, for phenomenal thermal recorders.

358, Facsimile, 296+, for recording apparatus in facsimile.

399, Electrophotography,

9+, for diagnostics, subclasses 38+ for controls, subclass 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.

400, Typewriting Machines, appropriate subclasses, particularly

120.01, for thermal or hot-stamp typing.

427, Coating Processes, appropriate subclasses coating a base.

428, Stock Material or Miscellaneous Articles, appropriate subclasses for web or sheet, per se.