Patent ID: 8688023
Filing Date: 2014-04-01
Classification: G03G

Abstract:
1. A pressing roller comprising: a metal core; and an elastic layer containing a filler which has an average length of 0.05 mm or more and 1 mm or less and a thermal conductivity of 500 W/(mK) or more, wherein in said elastic layer containing the filler, pore portions are dispersed, wherein the pore portions have an average diameter of 70 μm or less, wherein said elastic layer contains the filler of 5% or more and 40% or less in volume ratio, and the pore portions are formed with a volume ratio of 1% or more and 10% or less, wherein a volume ratio of the pore portions is not more than a volume ratio of the filler, and wherein the total volume ratio of the filler and the pore portions is not less than 10% and not more than 45%.