Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2011-05-03
2011-05-03
Porta, David P (Department: 2884)
Electrophotography
Internal machine environment
Particle or contaminant control
C399S099000, C399S101000, C399S107000, C399S110000, C399S121000, C399S297000, C399S298000, C399S299000, C399S300000, C399S301000, C399S302000, C399S303000, C399S310000, C399S313000
Reexamination Certificate
active
07937016
ABSTRACT:
A transfer device includes: an image carrier belt; a first roller around which the image carrier belt is wound; a second roller around which the image carrier belt wound around the first roller and shifted; a first transfer roller contacting the first roller via the image carrier belt; a second transfer roller contacting the second roller via the image carrier belt; and a transfer belt wound around the first transfer roller and the second transfer roller. A width L3of the image carrier belt and a width L4of the transfer belt have the relationship of L3>L4.
REFERENCES:
patent: 6345167 (2002-02-01), Bean
patent: 7054587 (2006-05-01), Sohmiya et al.
patent: 7434680 (2008-10-01), Kitamura
patent: 7616909 (2009-11-01), Kato et al.
patent: 2004/0126155 (2004-07-01), Kobayashi et al.
patent: 2001-166611 (2001-06-01), None
Ikuma Ken
Kamijo Koichi
DLA Piper (LLP) US
Porta David P
Seiko Epson Corporation
Vu Mindy
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