Cartridge for use in an image forming apparatus having an...

Electrophotography – Having particular structure – Modular or displaceable

Reexamination Certificate

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Reexamination Certificate

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11780576

ABSTRACT:
A cartridge for use in an image forming apparatus comprises a charge roller to which a predetermined voltage is applied; a photosensitive drum charged by the charge roller by rotating in contact with the charge roller; an electronic element for wireless communication which is positioned at a predetermined distance from a contact line between the charge roller and the photosensitive drum; and a shielding member made of a metal which is interposed between the contact line and the electronic element to form a shielding area for shielding electromagnetic waves generated from the contact line, the electronic element being positioned within the shielding area except for boundary portions of the shielding area. As a result, the cartridge is able to efficiently shield an electronic element from electromagnetic waves generated between a photosensitive drum and a charge roller.

REFERENCES:
patent: 4062061 (1977-12-01), Batchelor et al.
patent: 5697028 (1997-12-01), Kobayashi et al.
patent: 6438327 (2002-08-01), Kimizuka et al.
patent: 2001-194966 (2001-07-01), None
patent: 2002-328580 (2002-11-01), None
patent: 2002-341703 (2002-11-01), None
U.S. Appl. No. 11/434,721, filed May 17, 2006, Young-min Kim, Samsung Electronics Co., Ltd.
Office Action issued Jul. 21, 2006 by the Korean Intellectual Property Office re: Korean Patent Application No. 2005-52079.

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