Electrophotography – Image formation – Development
Reexamination Certificate
2006-10-24
2006-10-24
Grainger, Quana (Department: 2852)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07127199
ABSTRACT:
A developing device for developing a latent image formed on an image carrier of the present invention includes a rotatable, nonmagnetic developer carrier, and a magnetic field generating member for generating a magnetic field in a developing zone where the developer carrier faces the image carrier. The magnetic field generated causes a developer deposited on the developer carrier to rise in the form of a magnet brush. A magnetic pole for development is located upstream of a position where the developer carrier and image carrier are closest to each other in a direction of rotation. A magnetic force, as measured on the surface of the developer carrier, increases from the position of the magnetic pole toward a position where the magnet brush finally leaves the image carrier.
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U.S. Appl. No. 11/353,119, filed Feb. 14, 2006, Imamura.
Imamura Tsuyoshi
Kakegawa Mieko
Kamio Sumio
Kamiya Noriyuki
Koetsuka Kyohta
Grainger Quana
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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