Electrophotography – Internal machine environment – Particle or contaminant control
Patent
1997-09-11
1999-08-10
Pendegrass, Joan
Electrophotography
Internal machine environment
Particle or contaminant control
399283, G03G 1508
Patent
active
059372362
ABSTRACT:
The ghost-image preventing apparatus including a grounded seal installed on a developing frame that prevents toner from flowing to the developing roller and neutralizes the charge of toner remaining on the developing roller. Another embodiment induces a voltage across the seal of the same magnitude as, but having opposite polarity to, the charge of the developing roller to neutralize the electric charge of the toner remaining on the surface of the developing roller after an electrostatic latent image or a photosensitive drum is developed.
REFERENCES:
patent: 3152012 (1964-10-01), Schaffert
patent: 3731146 (1973-05-01), Bettiga et al.
patent: 3893418 (1975-07-01), Liebman et al.
patent: 3929098 (1975-12-01), Liebman
patent: 4406536 (1983-09-01), Suzuki et al.
patent: 4745429 (1988-05-01), Mukai et al.
patent: 4806992 (1989-02-01), Yasuda et al.
patent: 4930438 (1990-06-01), Demizu et al.
patent: 5076201 (1991-12-01), Nishio et al.
patent: 5095341 (1992-03-01), Yoshida et al.
patent: 5111246 (1992-05-01), Brailsford et al.
patent: 5132734 (1992-07-01), Momiyama et al.
patent: 5146285 (1992-09-01), Kikuchi et al.
patent: 5166472 (1992-11-01), Maeda et al.
patent: 5177323 (1993-01-01), Kohyama
patent: 5177537 (1993-01-01), Okano et al.
patent: 5210551 (1993-05-01), Inoue et al.
patent: 5249025 (1993-09-01), Nakazawa et al.
patent: 5311258 (1994-05-01), Brewington et al.
patent: 5317370 (1994-05-01), Kohyama et al.
patent: 5379097 (1995-01-01), Aoto et al.
patent: 5477006 (1995-12-01), Imamiya et al.
patent: 5568236 (1996-10-01), Toda et al.
patent: 5604573 (1997-02-01), Endo et al.
patent: 5708921 (1998-01-01), Yogi et al.
Patent Abstracts of Japan vol. 095, No. 007, Aug. 31, 1995 &JP 07 110622a (Seiko Epson Corp), Apr. 25, 1995.
Patent Abstracts of Japan vol. 096, No. 009, Sep. 30, 1996 &JP 08 137257 A (Minolta Co Ltd. May 31, 1996.
Bushnell Esq. Robert E.
Pendegrass Joan
Samsung Electronics Co,. Ltd.
LandOfFree
Ghost-image preventing apparatus for a developing roller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ghost-image preventing apparatus for a developing roller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ghost-image preventing apparatus for a developing roller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1129557