Electrophotography – Image formation – Development
Reexamination Certificate
2007-06-04
2011-10-18
Gray, David (Department: 2852)
Electrophotography
Image formation
Development
C399S274000, C399S275000, C399S279000, C399S283000, C399S359000
Reexamination Certificate
active
08041269
ABSTRACT:
A development apparatus includes a first developer chamber configured to store and supply the developer, a first developer bearer configured to convey the developer supplied from the first developer chamber to a first development domain, defined by a portion of the first developer bearer facing a latent image bearer, to develop the latent image, a second developer bearer configured to convey the developer passed through the first development domain to a second development domain, defined by a portion of the second developer bearer facing the latent image bearer, to develop the latent image, a second developer chamber configured to recover the developer passing through the second development domain and store the recovered developer, and a transfer prevention member provided between the second developer chamber and the second developer bearer to reduce a transfer of the developer from the second developer chamber to the second developer bearer.
REFERENCES:
patent: 4267201 (1981-05-01), Nakahara et al.
patent: 5557371 (1996-09-01), Tooda
patent: 5987288 (1999-11-01), Mori et al.
patent: 6243543 (2001-06-01), Nozawa
patent: 6813462 (2004-11-01), Mitsuya et al.
patent: 7090956 (2006-08-01), Suzuki et al.
patent: 7260347 (2007-08-01), Tamaki et al.
patent: 7286790 (2007-10-01), Preston et al.
patent: 7305206 (2007-12-01), Hart et al.
patent: 7593671 (2009-09-01), Ishikawa et al.
patent: 7702261 (2010-04-01), Yasuda
patent: 2004/0105705 (2004-06-01), Hirobe
patent: 2004/0136755 (2004-07-01), Kakimoto
patent: 2005/0238390 (2005-10-01), Fukuda
patent: 2006/0008300 (2006-01-01), Tanaka
patent: 2007/0274742 (2007-11-01), Nakayama et al.
patent: 2008/0226355 (2008-09-01), Koetsuka et al.
patent: 2009/0067878 (2009-03-01), Tateyama et al.
patent: 07-225512 (1995-08-01), None
patent: 2000-155467 (2000-06-01), None
patent: 2001-249545 (2001-09-01), None
patent: 2003-263012 (2003-09-01), None
patent: 2004-163906 (2004-06-01), None
patent: 2006-139227 (2006-06-01), None
U.S. Appl. No. 12/251,580, filed Oct. 15, 2008, Nakayama et al.
U.S. Appl. No. 12/042,848, filed Mar. 5, 2008, Kita et al.
U.S. Appl. No. 12/059,392, filed Mar. 31, 2008, Tateyama et al.
Japanese Office Action issued Jul. 1, 2011, in Japanese Patent Application No. 2006-155103.
Fujinuma Yoshitaka
Kubo Tatsuya
Nakagawa Tsutomu
Nakayama Masayoshi
Suzuki Takashi
Evans Geoffrey
Gray David
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Co. Ltd.
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