|  | G |
SECTION G — PHYSICS

INSTRUMENTS

|  | G03 |
PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY [2]

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

|  | G03G |
Note(s) This sub-class deals with 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. Using electric signals for the transmission of the picture information from the original to the reproduction, i.e. pictorial communication, is dealt with in sub-class Fulltext... Hierarchy... Expanded...H04N. The production of pictures by heat patterns exclusively, not using an electrostatic or magnetic pattern, is classified in group Fulltext... Hierarchy... Expanded...B41M 5/00. The 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, is dealt with in sub-class Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...G01D 15/34; photosensitive compositions Fulltext... Hierarchy... Expanded...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, (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...G03G 15/00, Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G03G 13/02-G03G 13/20 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...G03G 16/00 takes precedence) [2]

|  | G03G 15/00 |
Note(s) This group also deals with 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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G03G 13/02-G03G 13/20 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G03G 13/00-G03G 19/00, e.g. cleaning, elimination of residual charge [2]