Image forming apparatus and transfer apparatus employing...

Details Image forming apparatus and transfer apparatus employing... Image forming apparatus and transfer apparatus employing...

2007-11-27

2007-11-27

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S312000, C399S313000, C399S314000

Reexamination Certificate

active

11225438

ABSTRACT:
Transfer roller(s) is/are such that either end thereof is formed from fibrous electrically conductive component(s) and such that cylindrical portion(s) in central region(s) is/are, for example, formed from metal roller-like structure(s), either fibrous electrically conductive component outer end being arranged so as to extend somewhat beyond either transfer/transport belt side. Furthermore, outside diameter(s) approximated by tips of respective individual fiber(s) of fibrous electrically conductive component(s) is/are somewhat larger than diameter(s) of metal roller-like structure(s). This makes it possible for electric field(s) to be applied, and for charging to occur, along the full width(s) of transfer/transport belt(s).

REFERENCES:
patent: 5873016 (1999-02-01), Kurokawa et al.
patent: 6167229 (2000-12-01), Watanabe et al.
patent: 6178307 (2001-01-01), Kimura
patent: 04-042277 (1992-02-01), None
patent: 07-199689 (1995-08-01), None
patent: 10-260624 (1998-09-01), None
patent: 11-288179 (1999-10-01), None
patent: 2000-147950 (2000-05-01), None

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