G PHYSICS
G03 PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
G03G15/00 Apparatus for electrographic processes using a charge pattern
G03G15/08 using a solid developer, e.g. powder developer
G03G15/0822 Arrangements for preparing, mixing, supplying or dispensing developer
G03G15/0865 Arrangements for supplying new developer
G03G15/0867 cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
G03G15/087 Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
G03G15/0872 the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis