G
SECTION G — PHYSICS
  
INSTRUMENTS
 G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY (reproduction of pictures or patterns by scanning and converting into electrical signals H04N)
 G03

Note(s)

In this class, the following terms are used with the meaning indicated:

  • "records" means photographs or any other kind of latent, directly-visible or permanent storage of pictorial information, which consist of an imagewise distribution of a quantity, e.g. an electric charge pattern, recorded on a carrier member;
  • "optical" applies not only to visible light but also to ultra-violet or infra-red radiations.

 G03G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY (information storage based on relative movement between record carrier and transducer G11B; static stores with means for writing-in or reading-out information G11C; recording of television signals H04N 5/76)
 G03G

Note(s)

  1. This subclass covers the production of permanent directly-visible pictures in conformity with an original picture or document, using an imagewise distribution of an electric or magnetic quantity, such as a charge pattern, an electric conductivity pattern, or a magnetic pattern.
  2. This subclass does not cover:
    • use of electric signals for the transmission of the picture information from the original to the reproduction, i.e. pictorial communication, which is covered by subclass H04N;
    • production of pictures by heat patterns exclusively, not using an electrostatic or magnetic pattern, which is covered by group B41M 5/00;
    • production of prints by transferring ink from a printing form to a printing surface, without physical contact and using the force of an electrostatic field, which is covered by subclass B41M.
 G03G 5/00
Recording-members for original recording by exposure e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor (recording surfaces for measuring apparatus G01D 15/34; photosensitive compositions G03C)
 G03G 5/02
·  Charge-receiving layers
 G03G 5/022
·  ·  Thermoplastic layers  [2]
 G03G 5/024
·  ·  Photoelectret layers  [2]
 G03G 5/026
·  ·  Layers in which during the irradiation a chemical reaction occurs whereby electrically conductive patterns are formed in the layers, e.g. for chemixerography  [2]
 G03G 5/028
·  ·  Layers in which after being exposed to heat patterns electrically conductive patterns are formed in the layers, e.g. for thermoxerography  [2]
 G03G 5/04
·  ·  Photoconductive layers; Binding thereof; Sensitisers or activators for the photoconductive material  [2]
 G03G 5/05
·  ·  ·  Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers  [2]
 G03G 5/06
·  ·  ·  the photoconductive material being organic
 G03G 5/07
·  ·  ·  ·  Polymeric photoconductive materials  [2]
 G03G 5/08
·  ·  ·  the photoconductive material being inorganic  [2]
 G03G 5/082
·  ·  ·  ·  and not being incorporated in a bonding material, e.g. vacuum deposited  [2]
 G03G 5/085
·  ·  ·  ·  and being incorporated in an inorganic bonding material, e.g. glass-like layers  [2]
 G03G 5/087
·  ·  ·  ·  and being incorporated in an organic bonding material  [2]
 G03G 5/09
·  ·  ·  Sensitisers or activators, e.g. dyestuffs (G03G 5/12 takes precedence)  [2]
 G03G 5/10
·  Carriers for charge-receiving or other layers
 G03G 5/12
·  Recording members for multicolour processes  [2]
 G03G 5/14
·  Intermediate or cover layers for charge-receiving layers  [2]
 G03G 5/16
·  Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing  [3]
 G03G 7/00
Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof (photosensitive compositions G03C)
 G03G 8/00
Layers covering the final reproduction, e.g. for protecting, for writing thereon  [2]
 G03G 9/00
Selection of substances for use as developers
 G03G 9/06
·  the developer being electrolytic
 G03G 9/08
·  using toner particles  [2]
 G03G 9/10
·  ·  in mixture with a particulate carrier (G03G 9/14 takes precedence)  [2]
 G03G 9/12
·  ·  suspended or dispersed in a liquid  [2]
 G03G 9/14
·  ·  with magnetic brush or other brush carrier  [2]
 G03G 9/16
·  Developers not provided for in groups G03G 9/06-G03G 9/14, e.g. solutions, aerosols  [2]
 G03G 9/18
·  ·  Differentially-wetting liquid developers  [2]
 G03G 11/00
Selection of substances for use as fixing agents
 G03G 13/00
Electrographic processes using a charge pattern (G03G 15/00, G03G 16/00 take precedence)  [2]
 G03G 13/01
·  for multicoloured copies  [2]
 G03G 13/02
·  Sensitising, i.e. laying-down a uniform charge (devices for corona discharge per se H01T 19/00)
 G03G 13/04
·  Exposing, i.e. transmitting the information given by the original image to the recording material
 G03G 13/044
·  ·  by charge transfer on to the recording material in accordance with the image  [2]
 G03G 13/048
·  ·  with a charge pattern on the recording material  [2]
 G03G 13/052
·  ·  ·  by charging or discharging after sensitising  [2]
 G03G 13/056
·  ·  by internal polarisation  [2]
 G03G 13/06
·  Developing
 G03G 13/08
·  ·  using a solid developer, e.g. powder developer
 G03G 13/09
·  ·  ·  using magnetic brush  [2]
 G03G 13/10
·  ·  using a liquid developer
 G03G 13/12
·  Warming
 G03G 13/14
·  Transferring a pattern to a second base
 G03G 13/16
·  ·  of a toner pattern, e.g. a powder pattern
 G03G 13/18
·  ·  of a charge pattern
 G03G 13/20
·  Fixing
 G03G 13/22
·  Processes involving the combination of more than one step according to groups G03G 13/02-G03G 13/20 (G03G 13/01 takes precedence)  [2]
 G03G 13/24
·  ·  whereby at least two steps are performed simultaneously  [2]
 G03G 13/26
·  for the production of printing plates for non-xerographic printing processes  [2]
 G03G 13/28
·  ·  Planographic printing plates  [2]
 G03G 13/30
·  ·  Hectographic masters  [2]
 G03G 13/32
·  ·  Relief printing plates  [2]
 G03G 15/00
Apparatus for electrographic processes using a charge pattern (G03G 16/00 takes precedence)  [2]
 G03G 15/00

Note(s)

This group covers also processes in so far as they are characterised by the use or manipulation of apparatus classifiable per se in this group.

 G03G 15/01
·  for producing multicoloured copies  [2]
 G03G 15/02
·  for sensitising, i.e. laying-down a uniform charge (devices providing for corona discharge per se H01T 19/00)
 G03G 15/04
·  for exposing, i.e. transmitting the information given by the original image to the recording material
 G03G 15/044
·  ·  by charge transfer on to the recording material in accordance with the image  [2]
 G03G 15/048
·  ·  with a charge pattern on the recording material  [2]
 G03G 15/052
·  ·  ·  by charging or discharging after sensitising  [2]
 G03G 15/056
·  ·  by internal polarisation  [2]
 G03G 15/06
·  for developing
 G03G 15/08
·  ·  using a solid developer, e.g. powder developer
 G03G 15/09
·  ·  ·  using magnetic brush  [2]
 G03G 15/10
·  ·  using a liquid developer
 G03G 15/12
·  for warming
 G03G 15/14
·  for transferring a pattern to a second base
 G03G 15/16
·  ·  of a toner pattern, e.g. a powder pattern
 G03G 15/18
·  ·  of a charge pattern
 G03G 15/20
·  for fixing
 G03G 15/22
·  involving the combination of more than one step according to groups G03G 13/02-G03G 13/20 (G03G 15/01 takes precedence)  [2]
 G03G 15/24
·  ·  whereby at least two steps are performed simultaneously  [2]
 G03G 15/26
·  ·  in which the charge pattern is obtained by projection of the entire image, i.e. whole-frame projection  [2]
 G03G 15/28
·  ·  in which projection is obtained by line scanning  [2]
 G03G 15/30
·  ·  ·  in which projection is formed on a drum  [2]
 G03G 15/32
·  ·  in which the charge pattern is formed dotwise  [2]
 G03G 16/00
Electrographic processes using deformation of thermoplastic layers (thermoplastic layers G03G 5/022)  [2]
 G03G 17/00
Electrographic processes using patterns other than charge patterns; Apparatus essentially involving a single such process
 G03G 17/02
·  with electrolytic development  [2]
 G03G 17/04
·  using photoelectrophoresis  [2]
 G03G 19/00
Processes using magnetic patterns; Apparatus therefor
 G03G 21/00
Processes or apparatus not provided for by groups G03G 13/00-G03G 19/00, e.g. cleaning, elimination of residual charge  [2]