Patent ID: 6305859
Filing Date: 2001-10-23
Classification: B41J

Abstract:
A pressure contact roller for a printer having a feed roller, said pressure contact roller pressure-contacting said feed roller separately provided in said printer and driven for rotation, rotated with rotation of said feed roller, and gripping a sheet of recording paper in cooperation with said feed roller to feed said sheet of recording paper to a recording position,said pressure contact roller pressure-contacting a surface of said sheet of recording paper on the side where printing has been made, and comprising a roller shaft serving as a rotary support shaft and a roller body formed around said roller shaft,said roller body being molded of a mixed material of a thermoplastic elastomer and crystalline resin powder having higher hardness than said elastomer, said crystalline resin powder being mixed at a ratio of 50 to 70 by weight with respect to 100 of said elastomer, said roller body being then polished at a surface thereof, whereby said roller body has an overall outer circumferential surface on which a number of projections are formed by said crystalline resin powder and scattered such that the projections are projected from said outer circumferential surface of said roller body, thereby preventing drift of ink, printed on the surface of said sheet of recording paper on the side where printing has been made, onto said outer circumferential surface of said roller body.