Photocopying – Contact printing – Light boxes
Patent
1993-06-23
1995-07-11
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
355200, 355210, 355245, 222DIG1, 141364, 141367, 141383, G03G 1508
Patent
active
054325927
ABSTRACT:
Disclosed are a developer cartridge designed to ensure exchange of developers and toner supplement, and an image forming apparatus using this cartridge. This developer cartridge includes a cylindrical body whose rotational axis extends in a direction perpendicular to the developer carrying direction of the developing unit, a first developer storage room, provided at one portion of the cylindrical body, for storing an unused developer, a second developer storage room, provided at the other portion of the cylindrical body, for storing a supplemental toner, openings respectively formed in the first and second developer storage rooms of the cylindrical body, and a case with a cylinder shape for rotatably retaining the cylindrical body, the case having a pair of injection ports respectively provided in association with the opening of the first developer storage room and the opening of the second developer storage room. The image forming apparatus includes an endless latent carrier, structure for forming an electrostatic latent image on the endless latent carrier, developing mechanism for developing the electrostatic latent image on the endless latent carrier, a developer cartridge detachably attached to the developing mechanism for exchanging developers and for toner supplement, and having the same components as the above-described cartridge, and drive mechanism for driving the cylindrical body of the attached developer cartridge, for exchanging a used developer with an unused developer and for toner supplement.
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European Search Report dated Oct. 22, 1993.
Fujii Michihiro
Kawashima Masato
Nanba Hideyuki
Watanabe Mamoru
Fujitsu Limited
Smith Matthew S.
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