Semiconductive silicone rubber roller thereof

Details Semiconductive silicone rubber roller thereof Semiconductive silicone rubber roller thereof

1997-03-14

1998-10-27

Cuda, Irene

Roll or roller

Concentric layered annulus

Specific composition

492 59, B23P 1500

Patent

active

058271600

ABSTRACT:
Disclosed is an improvement in a rubber roller as a developing roller in a electrophotographic printer of which the silicone rubber forming the rubber layer on and around a metallic core mandrel is electrically semiconductive. The printing characteristics and abrasion resistance of the rubber roller to ensure good durability of the rubber roller in printing services can be greatly improved by the irradiation treatment of the rubber surface with ultraviolet light having principal wavelengths of 253.7 nm and 184.9 nm in an irradiation dose of 1.2 to 76 J/cm.sup.2, preferably, in an oxygen-containing atmosphere to form an ultraviolet-hardened surface layer of which the rubber surface has a specified surface rough-ness.

REFERENCES:
patent: 5065193 (1991-11-01), Saitoh et al.
patent: 5625858 (1997-04-01), Hirai et al.
patent: 5717988 (1998-02-01), Jinzai et al.
patent: 5729813 (1998-03-01), Eddy et al.
patent: 5733235 (1998-03-01), Waku et al.
patent: 5740513 (1998-04-01), Matsuo et al.

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