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US 2009/0290918 A1Published application
Soft pressure roller composition for fusing system
Assignee7-Sigma, Inc.
InventorsWade R. Eichhorn, Boris Avrushchenko, Kristian G. Wyrobek, David Winters
Life of this patent
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Abstract
A soft pressure roller for use in a printer fusing system having an inside diameter and an outside diameter, wherein the roller is fabricated of LIM silicone elastomer having a softness of between 15 and 35 Asker C and wherein the distance between the inside diameter and the outside diameter is between 2 mm and 10 mm.
Claims20
A pressure roller comprising:
- a core, and;
- a base having an inside diameter and an outside diameter, wherein the inside diameter is molded about the core and wherein the roller is fabricated of a LIM silicone elastomer having a softness of between 15 and 35 Asker C and wherein the distance between the inside diameter and the outside diameter is between 2 mm and 10 mm.
A pressure roller comprising:
- a core and a base, wherein the base is defined by a layer of LIM silicone elastomer having an inside diameter and an outside diameter, wherein the layer of LIM silicone includes a softness of between 15 and 35 Asker C, and wherein the distance between the inside diameter and the outside diameter is between 2 mm and 10 mm;
- a top coat disposed about the entire outside diameter of the base, wherein the top coat is fabricated of a polymer having abrasion resistance and surface release properties with a softness between 17 and 40 Asker C.
A pressure roller comprising:
- a core and a base, wherein the base is defined by a layer of LIM silicone elastomer having an inside diameter and an outside diameter, wherein the layer of LIM silicone includes a softness of between 15 and 35 Asker C, and wherein the distance between the inside diameter and the outside diameter is between 2 mm and 10 mm;
- a sleeve having a thickness defined by an interior and an exterior, wherein the interior of the sleeve is disposed about the base, wherein the sleeve is fabricated from a fluoropolymer wherein the thickness of the sleeve is between 20 and 50 microns and the composite hardness of the roller is between 20 and 60 Asker C.
Dependencies are inferred from the claim text.