Electrophotographic member, process cartridge and electrophotographic image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShunsuke Tango, MASAHIRO WATANABE, TAKAYUKI HIRATANI, RYO OGAWA
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AssigneeCanon Kabushiki Kaisha
InventorsShunsuke Tango, MASAHIRO WATANABE, TAKAYUKI HIRATANI, RYO OGAWA
Estimating the term…
An electrophotographic member having a conductive elastic layer, wherein the elastic layer contains a urethane elastomer and a conductive filler, the urethane elastomer contains a matrix and a plurality of domains dispersed in the matrix, and in a cross section of the elastic layer in which the domain and the matrix are exposed, the relationship between the parameter A indicating a viscoelasticity term of the domain and the parameter B indicating a viscoelasticity term of the matrix measured in a predetermined viscoelasticity image satisfies A<B, the micro rubber hardness of the elastic layer at a temperature of 23° C. is 20 to 50 degrees, and a strain 5 seconds after unloading measured by a predetermined method at a temperature of 23° C. is not more than 1.00 μm.
An electrophotographic member comprising a conductive elastic layer, wherein
Dependencies are inferred from the claim text.