Semiconductive rubber member and developing roller composed...

Electrophotography – Image formation – Development

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07555253

ABSTRACT:
A developing roller including a semiconductive rubber member having not less than two vulcanized layers including a base layer composed of a vulcanized electro-conductive rubber composition and a surface layer composed of a vulcanized rubber composition. An electric resistance value of the base layer is set to not more than 107Ω, when the electric resistance value of the base layer is measured by applying a voltage of 100V thereto at a temperature of 10° C. and a relative humidity of 20%. An electric resistance value of a laminate of all layers including the base layer and the surface layer is set not more than 107Ω in the same condition as the above-described condition in which the electric resistance value of the base layer is measured.

REFERENCES:
patent: 5733235 (1998-03-01), Waku et al.
patent: 2004/0110617 (2004-06-01), Mizumoto
patent: 2008/0107456 (2008-05-01), Mizumoto et al.
patent: 2004-170845 (2004-06-01), None
patent: 2005-225969 (2005-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Semiconductive rubber member and developing roller composed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductive rubber member and developing roller composed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductive rubber member and developing roller composed... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4080146

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.