Electrophotography – Cleaning of imaging surface – Fibrous brush
Reexamination Certificate
2006-01-17
2006-01-17
Beatty, Robert (Department: 2852)
Electrophotography
Cleaning of imaging surface
Fibrous brush
C399S357000
Reexamination Certificate
active
06987944
ABSTRACT:
An image forming apparatus includes an image bearer, a charging device that charges a surface of the image bearer, a latent image forming device that forms a latent image on the image bearer, a developing device that develops the latent image on the image bearer with a spherical toner into a toner image, a transfer device that transfers the toner image to a transfer material, and a cleaning device that removes the spherical toner remaining on the image bearer after the toner image is transferred to the transfer material. The cleaning device including a cleaning roller that removes the spherical toner on the image bearer while rotating and contacting the image bearer and which has a greater coefficient of static friction than the surface of the image bearer. An electric field is formed between the cleaning member and the image bearer by applying a voltage to the cleaning member so that the spherical toner adhered onto the image bearer is electrostatically attracted to the cleaning member. The cleaning member may also include a brush roller having bristles planted in a specific configuration.
REFERENCES:
patent: 3848994 (1974-11-01), Fraser
patent: 4252433 (1981-02-01), Sullivan
patent: 5130755 (1992-07-01), Ikegawa et al.
patent: 5148227 (1992-09-01), Senba et al.
patent: 5233398 (1993-08-01), Nimura et al.
patent: 5260754 (1993-11-01), Yano et al.
patent: 5376997 (1994-12-01), Yamato et al.
patent: 5386274 (1995-01-01), Sanpe et al.
patent: 5526100 (1996-06-01), Misago et al.
patent: 5559593 (1996-09-01), Yoshinaga et al.
patent: 5592267 (1997-01-01), Misago et al.
patent: 5606408 (1997-02-01), Yano et al.
patent: 5638159 (1997-06-01), Kai et al.
patent: 5740494 (1998-04-01), Shoji et al.
patent: 5765087 (1998-06-01), Yano et al.
patent: 5809388 (1998-09-01), Inada et al.
patent: 5835821 (1998-11-01), Suzuki et al.
patent: 5864737 (1999-01-01), Obu et al.
patent: 5923930 (1999-07-01), Tsukamoto et al.
patent: 5937247 (1999-08-01), Takeuchi et al.
patent: 5987281 (1999-11-01), Kurotori et al.
patent: 5999779 (1999-12-01), Takeuchi
patent: 6038421 (2000-03-01), Yoshino et al.
patent: 6061540 (2000-05-01), Takeda
patent: 6108508 (2000-08-01), Takeuchi et al.
patent: 6115576 (2000-09-01), Nakano et al.
patent: 6131001 (2000-10-01), Tsukamoto et al.
patent: 6134394 (2000-10-01), Tsukamoto et al.
patent: 6154624 (2000-11-01), Sasaki et al.
patent: 6236825 (2001-05-01), Takeuchi
patent: 6358658 (2002-03-01), Tazawa et al.
patent: 6381432 (2002-04-01), Hattori
patent: 6405008 (2002-06-01), Obu et al.
patent: 6442362 (2002-08-01), Hirabayashi et al.
patent: 6505014 (2003-01-01), Aoki et al.
patent: 6560418 (2003-05-01), Campbell et al.
patent: 1-142972 (1989-09-01), None
patent: 4-141678 (1992-05-01), None
patent: 4-112274 (1992-09-01), None
patent: 4-267282 (1992-09-01), None
patent: 4-330482 (1992-11-01), None
patent: 4-353877 (1992-12-01), None
patent: 5-265360 (1993-10-01), None
patent: 6-161330 (1994-06-01), None
patent: 7-36342 (1995-02-01), None
patent: 7-155222 (1995-06-01), None
patent: 8-202125 (1996-08-01), None
patent: 08314347 (1996-11-01), None
patent: 09034261 (1997-02-01), None
patent: 9-114201 (1997-05-01), None
patent: 9-218527 (1997-08-01), None
patent: 10-10942 (1998-01-01), None
patent: 10073983 (1998-03-01), None
patent: 10-161502 (1998-06-01), None
patent: 7-210053 (1998-08-01), None
patent: 10-333514 (1998-12-01), None
patent: 11-15189 (1999-01-01), None
patent: 11-65167 (1999-03-01), None
patent: 11-95478 (1999-04-01), None
patent: 2000-75745 (2000-03-01), None
patent: 2000-293013 (2000-10-01), None
patent: 2001-34131 (2001-02-01), None
patent: 2001-56629 (2001-02-01), None
patent: 2001056628 (2001-02-01), None
patent: 2001-66854 (2001-03-01), None
patent: 2001-188405 (2001-07-01), None
patent: 2002-214822 (2002-07-01), None
Nakano Tohru
Nakazato Yasushi
Naruse Osamu
Shakuto Masahiko
Sugimoto Naomi
Beatty Robert
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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