US 7,321,745 B2 | ||
Developer supply roller and developing unit | ||
Masahiro Kawano, Tokyo (Japan) | ||
Assigned to Oki Data Corporation, Tokyo (Japan) | ||
Filed on Sep. 30, 2004, as Appl. No. 10/953,266. | ||
Claims priority of application No. 2003-390049 (JP), filed on Nov. 20, 2003. | ||
Prior Publication US 2005/0111886 A1, May 26, 2005 | ||
Int. Cl. G03G 15/08 (2006.01) |
U.S. Cl. 399—281 [399/283] | 12 Claims |
9. A developer supply device to be provided in contact with a developer carrying device, comprising a surface member having a plurality of discrete substantially elliptical openings formed in a surface thereof contacting with the developer carrying device, said surface member being made of a foam rubber such that the discrete substantially elliptical openings are foam openings, substantially all of said discrete substantially elliptical openings extending in a first direction tilted with respect to the axial direction and tilted with respect to a second direction perpendicular to the axial direction. |