Paper feed roller
AssigneesK R D Corporation, International Business Machines Corporation
InventorsTsutomu Sawa, Hiroyuki Takenoshita, Toshiki Hada, Hirohide Komatsu
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AssigneesK R D Corporation, International Business Machines Corporation
InventorsTsutomu Sawa, Hiroyuki Takenoshita, Toshiki Hada, Hirohide Komatsu
Estimating the term…
There is provided a paper feed roller capable of being used for delivering and feeding paper, which is high in coefficient of friction, has sufficient hardwearing properties with the coefficient of friction not affected by the change in environment of temperature and humidity, is low in ink transferability and is small in change in passage of year of the coefficient of friction of the surface. A coating layer 5 formed of an elastic material such as rubber is formed on an surface of a core material 4 molded of a foamed material such as sponge, and a bonding agent 6 having an elasticity such as denatured silicon is coated on the surface of the coating layer 5 so that ceramic particles 7 are fixed without clearance to provide a paper feed roller 1. Alternatively, the bonding agent 6 is directly coated on the surface of the core material 4 molded of a pliable material such as soft rubber and sponge so that the ceramic particles 7 are fixed without clearance to provide the paper feed roller 9.
A roller mounting member having a plurality of paper feed rollers fitted therein in an axial direction of a roller shaft, wherein each of the said paper feed rollers comprises:
A roller mounting member having a plurality of paper feed rollers fitted therein in an axial direction of a roller shaft, wherein each of the said paper feed rollers comprise:
Dependencies are inferred from the claim text.