Laser printer with diselectrification brush

Details Laser printer with diselectrification brush Laser printer with diselectrification brush

2007-07-31

2007-07-31

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S310000, C399S315000

Reexamination Certificate

active

11146177

ABSTRACT:
A laser printer includes a photoreceptor drum, a transfer roller contacting the photoreceptor drum, a transfer roller frame holding the transfer roller, an outer frame holding the transfer roller frame, a diselectrification brush fixed to the transfer roller frame, and a spring at least having a surface formed of conductive material for biasing the transfer roller toward the photoreceptor drum. The spring is formed of a single member and has a first extension contacting the diselectrification brush and a second extension contacting the outer frame.

REFERENCES:
patent: 5345295 (1994-09-01), Takano et al.
patent: 5758247 (1998-05-01), Yanashima et al.
patent: 5-107935 (1993-04-01), None
patent: 9-114277 (1997-05-01), None
patent: 2001-154495 (2001-06-01), None
Patent Abstracts of Japan, Publication No. 2001-154495 dated Jun. 8, 2001, 1 page.
Patent Abstracts of Japan, Publication No. 09-114277 dated May 2, 1997, 1 page.
Patent Abstracts of Japan, Publication No. 05-107935 dated Apr. 30, 1993, 1 page.

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