Circular body, circular body unit, and image forming apparatus

Details Circular body, circular body unit, and image forming apparatus Circular body, circular body unit, and image forming apparatus

2009-03-25

2011-10-04

Gray, David (Department: 2852)

Electrophotography

Image formation

Transfer

C399S121000, C399S308000

Reexamination Certificate

active

08032067

ABSTRACT:
This invention provides a circular body, which is used for an image forming apparatus employing an electrophotographic system, the circular body containing: at least an inner layer containing resin and an outer layer that is laminated on an outer circumferential surface side of the inner layer and contains resin; and, as a conductive agent, polyaniline in the outer layer and carbon black in the inner layer; and satisfying the following relational expressions (1) and (2):in-line-formulae description="In-line Formulae" end="lead"?13.0≦C1≦15.0  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?21.5≦C2≦25.0  (2),in-line-formulae description="In-line Formulae" end="tail"?wherein C1represents the content (parts by weight) of the polyaniline with respect to 100 parts by weight of the resin forming the outer layer, and C2represents the content (parts by weight) of the carbon black with respect to 100 parts by weight of the resin forming the inner layer, as well as a circular body unit using the circular body and an image forming apparatus using the circular body.

REFERENCES:
patent: 7130569 (2006-10-01), Goodman et al.
patent: 2009/0074480 (2009-03-01), Suzuki
patent: 2009/0238614 (2009-09-01), Kakyo
patent: A-11-045010 (1999-02-01), None
patent: A-2005-091789 (2005-04-01), None
patent: A-2006-184547 (2006-07-01), None

Affiliated with

Also associated with

Rating

Circular body, circular body unit, and image forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circular body, circular body unit, and image forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circular body, circular body unit, and image forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4292519