Electrophotography roller

Details Electrophotography roller Electrophotography roller

2005-10-11

2005-10-11

Jimenez, Marc (Department: 3726)

Roll or roller

Concentric layered annulus

Specific composition

Reexamination Certificate

active

06953421

ABSTRACT:
An electrophotography roller incorporated in an image creating device by the electrophotography comprising a conductive shaft disposed along the center axis, a conductive elastic layer around the shaft, a surface layer on the conductive elastic layer formed concentrically. The JIS A hardness of the conductive elastic layer is 30° or less. The shear modulus of the conductive elastic layer measured in viscoelasticity under the condition of 20° C., 60% PH and 0.1 Hz is 4 105Pa or more. The width of contact of the roller with another member is sufficiently ensured even under a low pressing pressure. The compression residual strain is small even after the roller is pressed against another member for a long time. If the roller is used as a development roller, a sharp image with less density unevenness due to the residual strain is created.

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MatWeb.com, The Online Materials Database Data Sheet, www.matweb.com/search/.

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