Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2005-12-27
2005-12-27
Tran, Hoan (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S105000
Reexamination Certificate
active
06980753
ABSTRACT:
A bearing seal structure of the present invention is applicable to a developing device included in an image forming apparatus. The structure includes two seal members included in a bearing portion and each having a respective elastic seal lip configured to seal the outer periphery of a shaft in contact therewith. Grease is sealed between the two seal members and between one of the seal members closer to the bearing portion than the other and the bearing portion.
REFERENCES:
patent: 5255059 (1993-10-01), Kai et al.
patent: 5416568 (1995-05-01), Yoshiki et al.
patent: 5442430 (1995-08-01), Ishii et al.
patent: 5455662 (1995-10-01), Ichikawa et al.
patent: 5493365 (1996-02-01), Matsui et al.
patent: 5500719 (1996-03-01), Ichikawa et al.
patent: 5557382 (1996-09-01), Tatsumi et al.
patent: 5627631 (1997-05-01), Ichikawa et al.
patent: 5765079 (1998-06-01), Yoshiki et al.
patent: 5794108 (1998-08-01), Yoshizawa et al.
patent: 5822663 (1998-10-01), Ichikawa et al.
patent: 5828935 (1998-10-01), Tatsumi et al.
patent: 5909610 (1999-06-01), Yoshiki et al.
patent: 5918090 (1999-06-01), Ichikawa et al.
patent: 5970290 (1999-10-01), Yoshiki et al.
patent: 6075963 (2000-06-01), Ichikawa et al.
patent: 6289195 (2001-09-01), Ichikawa et al.
patent: 6295425 (2001-09-01), Garcia et al.
patent: 6418293 (2002-07-01), Ichikawa et al.
patent: 6606468 (2003-08-01), Yoshiki
patent: 2001-125374 (2001-05-01), None
Ricoh & Company, Ltd.
Tran Hoan
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