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
OG exemplary drawing
 
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.