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(0)G03G:0/2:

IPC6

SECTION G - PHYSICS

ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

G03G

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G03G005/00 - G03G005/16

G 03 G

ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY (information storage based on relative movement between record carrier and transducer G 11 B; static stores with means for writing-in or reading-out information G 11 C; recording of television signals H 04 N 5/76)

Notes

(1)	This subclass covers:

-	the production of permanent directly-visible pictures in conformity with an original picture or document, using an intermediate imagewise distribution of an electric or magnetic quantity, such as a charge pattern, an electric conductivity pattern, or a magnetic pattern;

-	the production of permanent directly-visible pictures using an intermediate imagewise distribution of an electric or magnetic quantity, when the origin and the way of generating said intermediate distribution are not relevant.

(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 H 04 N;

-	production of pictures by heat patterns exclusively, not using an electrostatic or magnetic pattern, which is covered by group B 41 M 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 B 41 M;

-	selective printing mechanisms characterised by the selective supply of electric current, or the selective application of magnetism or radiation, to a printing material or impression-transfer material, which are covered by groups B 41 J 2/385, B 41 J 2/435. [5]

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 G 01 D 15/34; photosensitive materials for photographic purposes G 03 C)

Charge-receiving layers (G 03 G 5/153 takes precedence) [5]

Layers for surface-deformation imaging, e.g. frost imaging [2]

Photoelectret layers [2]

Layers in which during the irradiation a chemical reaction occurs whereby electrically conductive patterns are formed in the layers, e.g. for chemixerography [2]

Layers in which after being exposed to heat patterns electrically conductive patterns are formed in the layers, e.g. for thermoxerography [2]

Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor [2,5]

Photoconductive layers characterised by having two or more layers or characterised by their composite structure [5]

characterised by the charge-generation layers or charge-transporting layers [5]

Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers [2]

characterised by the photoconductive material being organic [5]

Polymeric photoconductive materials [2]

characterised by the photoconductive material being inorganic [2,5]

and not being incorporated in a bonding material, e.g. vacuum deposited [2]

and being incorporated in an inorganic bonding material, e.g. glass-like layers [2]

and being incorporated in an organic bonding material [2]

Sensitisers or activators, e.g. dyestuffs (G 03 G 5/12 takes precedence) [2]

Bases for charge-receiving or other layers

Recording members for multicolour processes [2]

Inert intermediate or cover layers for charge- receiving layers (G 03 G 5/04 takes precedence) [2,5]

Cover layers [5]

Charge-receiving layers combined with additional photo- or thermo-sensitive, but not photoconductive, layers, e.g. silver-salt layers [5]

Layers for recording by changing the magnetic properties, e.g. for Curie-point-writing [3]

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