Electrophotography – Cleaning of imaging surface – Roller
Reexamination Certificate
2011-08-09
2011-08-09
Walsh, Ryan D (Department: 2852)
Electrophotography
Cleaning of imaging surface
Roller
C399S123000, C399S149000, C399S150000, C399S299000, C399S300000, C399S302000, C399S308000, C399S343000
Reexamination Certificate
active
07995960
ABSTRACT:
An image forming apparatus includes photosensitive members which are aligned along a conveying direction of a transfer medium and on each of which an electrostatic latent image is to be formed; developing units which supply a plurality of colors of developing agent to the photosensitive members, respectively; and cleaning rollers which slidably contact the photosensitive members to collect at least one of paper powder and developing agent adhering to surfaces of the photosensitive members, respectively. A most upstream cleaning roller which slidably contacts a most upstream photosensitive member in the conveying direction is provided with a paper powder absorption shaft which attracts and absorbs paper powder from the cleaning roller. A most downstream cleaning roller which slidably contacts a most downstream photosensitive member in the conveying direction is not provided with the paper powder absorption shaft.
REFERENCES:
patent: 2003/0185588 (2003-10-01), Takami et al.
patent: 2004/0052557 (2004-03-01), Fukuta
patent: 2005/0100364 (2005-05-01), Nishimura
patent: 4-219779 (1992-08-01), None
patent: 05-053482 (1993-03-01), None
patent: 5-134584 (1993-05-01), None
patent: 11-327191 (1999-11-01), None
patent: 2004-109319 (2004-04-01), None
patent: 2005-114756 (2005-04-01), None
JP Office Action dtd Jan. 5, 2010, JP Appln. 2007-3388621, partial English translation.
Extended EP Search Report May 6, 2009, EP Appln. 08022066.8.
Notification of Reasons for Refusal dispatched Oct. 12, 2010 in Japanese Application No. 2010-107302 and English translation thereof.
Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Walsh Ryan D
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