Electrophotography – Image formation – Development
Reexamination Certificate
2007-06-19
2007-06-19
Beatty, Robert (Department: 2852)
Electrophotography
Image formation
Development
C399S267000, C399S275000
Reexamination Certificate
active
11011119
ABSTRACT:
A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 μC/g.
REFERENCES:
patent: 4281329 (1981-07-01), Yano et al.
patent: 4286543 (1981-09-01), Ohnuma et al.
patent: 4292387 (1981-09-01), Kanbe et al.
patent: 4395476 (1983-07-01), Kanbe et al.
patent: 4473627 (1984-09-01), Kanbe et al.
patent: 4913088 (1990-04-01), Kanbe et al.
patent: 5032485 (1991-07-01), Kanbe et al.
patent: 5044310 (1991-09-01), Kanbe et al.
patent: 5096798 (1992-03-01), Kanbe et al.
patent: 5122838 (1992-06-01), Kohyama
patent: 5194359 (1993-03-01), Kanbe et al.
patent: 5570166 (1996-10-01), Ohzeki et al.
patent: 5708921 (1998-01-01), Yagi et al.
patent: 6128456 (2000-10-01), Chigono et al.
patent: 6447969 (2002-09-01), Ito et al.
patent: 6463245 (2002-10-01), Suwa et al.
patent: 6465144 (2002-10-01), Hashimoto et al.
patent: 6630275 (2003-10-01), Hiratsuka et al.
patent: 6829454 (2004-12-01), Miyakawa et al.
patent: 6847796 (2005-01-01), Chigono et al.
patent: 6879793 (2005-04-01), Chiba et al.
patent: 2004/0248025 (2004-12-01), Miyakawa
patent: 1 316 852 (2003-06-01), None
patent: 54-43027 (1979-04-01), None
patent: 55-18656 (1980-02-01), None
patent: 58-97071 (1983-06-01), None
patent: 63-235953 (1988-09-01), None
patent: 3-4276 (1991-01-01), None
patent: 4-15949 (1992-03-01), None
patent: 7-28335 (1995-01-01), None
patent: 07-120115 (1995-12-01), None
patent: 8-137257 (1996-05-01), None
patent: 2598131 (1997-01-01), None
patent: 9-80917 (1997-03-01), None
patent: 10-307455 (1998-11-01), None
patent: 2001-92201 (2001-04-01), None
patent: 2001-235899 (2001-08-01), None
patent: 3225759 (2001-08-01), None
patent: 2001235897 (2001-08-01), None
patent: 2002-341590 (2002-11-01), None
patent: 2002-365828 (2002-12-01), None
patent: 2003043736 (2003-02-01), None
Patent Abstracts of Japan, Publication No. 63235953, Sep. 30, 1988.
Patent Abstracts of Japan, Publication No. 2002365828, Dec. 18, 2002.
Pending U.S. Appl. No. 11/011,145, filed Dec. 15, 2004, Hagiwara et al.
Pending U.S. Appl. No. 11/091,823, filed Mar. 29, 2005, Hagiwara et al.
An Abstract for a corresponding Japanese Patent Document No. 58-97071 has been provided.
An Abstract for a corresponding Japanese Patent Document No. 8-137257 has been provided.
Chigono Yasunori
Hagiwara Kazunari
Moriya Shuji
Ogawa Kenya
Okuda Kouichi
LandOfFree
Developing apparatus featuring a developer carrying member... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Developing apparatus featuring a developer carrying member..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Developing apparatus featuring a developer carrying member... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3875381