Electrophotography – Having particular structure – Modular or displaceable
Reexamination Certificate
2005-09-13
2005-09-13
Royer, William J. (Department: 2852)
Electrophotography
Having particular structure
Modular or displaceable
C399S113000, C399S301000
Reexamination Certificate
active
06944415
ABSTRACT:
In an image forming apparatus of a tandem type having at least two image forming stations each of which having an image carrier, and a charging device arranged around the image carrier and capable of forming an image. Additionally, a plurality of the image carriers are mounted at proper relative positions to an image carrier cartridge which is detachable relative to the apparatus body. Developing devices are designed to be detachable relative to the respective image carriers mounted to the image carrier cartridge. Writing devices and a transferring device are mounted at proper positions. The cartridge is provided with a storage device for storing information on color registration errors and color registration errors are corrected by a correcting device.
REFERENCES:
patent: 6522861 (2003-02-01), Tokutake et al.
patent: 6647227 (2003-11-01), Yokoi et al.
patent: 6708011 (2004-03-01), Nomura et al.
patent: 63-271275 (1988-11-01), None
patent: 9-304994 (1997-11-01), None
Royer William J.
Seiko Epson Corporation
Sughrue & Mion, PLLC
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