Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2011-02-15
2011-02-15
Gray, David M (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S174000, C399S176000, C399S123000
Reexamination Certificate
active
07890016
ABSTRACT:
A charging apparatus includes a charging roller and a cleaning member. The charging roller charges a surface of an image bearing body. The cleaning member extends in a longitudinal direction parallel to the charging roller and that cleans the charging roller. The charging apparatus includes a bearing and a supporting member. The bearing supports a shaft of the charging roller. The cleaning member is mounted to the supporting member the cleaning member is held between the supporting member and the charging roller. The supporting member includes a surface to which the cleaning member is mounted, the surface being a curved surface configured to a circumferential surface of the charging roller. The supporting member includes a surface to which the cleaning member is mounted, the surface including a flat portion extending upstream with respect to rotation of the charging roller and a curved portion extending downstream.
REFERENCES:
patent: 5557373 (1996-09-01), Miyashita et al.
patent: 6219505 (2001-04-01), Sato et al.
patent: 2007/0098435 (2007-05-01), Kitagawa et al.
patent: 03-100676 (1991-04-01), None
Gray David M
Oki Data Corporation
Panitch Schwarze Belisario & Nadel LLP
Yi Roy
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