So far as processes are concerned, this sub-class covers only processes characterised by the use or manipulation of apparatus classifiable per se in this sub-class.
PHOTOSENSITIVE COMPOSITIONS OR BASES CARRYING THEM; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in Fulltext... Hierarchy... Expanded...G03B; electrography, electrophotography, magnetography Fulltext... Hierarchy... Expanded...G03G)
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.
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.