Donor rolls with spiral electrodes for commutation
AssigneeXerox Corporation
InventorHeiko Rommelmann
Life of this patent
Estimating the term…
Abstract
A donor roll for transporting marking particles to an electrostatic latent image recorded on a surface is provided. The donor roll includes a body rotatable about a longitudinal axis and an electrode member. The electrode member includes a plurality of electrical conductors mounted on the body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of the body.
Claims31
A donor roll for transporting marking particles to an electrostatic latent Image recorded on a surface, comprising:
- a body rotatable about a longitudinal axis;
- and
- an electrode member including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body and with at least one of said conductors being electrically isolated from at least one of the remainder of said conductors.
A donor roll for transporting marking particles to an electrostatic latent image recorded on a surface, comprising:
- a body rotatable about a longitudinal axis;
- and
- an electrode member including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body wherein said plurality of conductors includes a second portion extending in a direction substantially parallel to the longitudinal axis of said body.
A developer unit for developing a latent image recorded on an image receiving member to form a developed image, comprising:
- a housing defining a chamber for storing at least a supply of toner therein;
- and
- a moving donor member spaced from the surface and adapted to transport toner from the chamber of said housing to a development zone adjacent the surface, said donor member including a body rotatable about a longitudinal axis and an electrode member including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body and with at least one of said conductors being electrically isolated from at least one of the remainder of said conductors.
A developer unit for developing a latent image recorded on an image receiving member to form a developed image, comprising:
- a housing defining a chamber for storing at least a supply of toner therein;
- and
- a moving donor member spaced from the surface and adapted to transport toner from the chamber of said housing to a development zone adjacent the surface, said donor member including a body rotatable about a longitudinal axis and an electrode member including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body, wherein said plurality of conductors include a second portion extending in a direction substantially parallel to the longitudinal axis of said body.
An electrophotographic printing machine of the type having a developer unit adapted to develop with marking particles an electrostatic latent image recorded on a photoconductive member, the machine comprising:
- a housing defining a chamber for storing at least a supply of toner therein;
- and
- a moving donor member spaced from the surface and adapted to transport toner from the chamber of said housing to a development zone adjacent the surface, said donor member Including a body rotatable about a longitudinal axis and an electrode member Including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body and with at least one of said conductors being electrically isolated from at least one of the remainder of said conductors.
An electrophotographic printing machine of the type having a developer unit adapted to develop with marking particles an electrostatic latent image recorded on a photoconductive member, the machine comprising:
- a housing defining a chamber for storing at least a supply of toner therein;
- and
- a moving donor member spaced from the surface and adapted to transport toner from the chamber of said housing to a development zone adjacent the surface, said donor member including a body rotatable about a longitudinal axis and an electrode member including a plurality of electrical conductors mounted on said body with adjacent electrical conductors being spaced from one another having at least a portion thereof extending in a direction transverse to the longitudinal axis of said body, wherein said plurality of conductors includes a second portion extending in a direction substantially parallel to the longitudinal axis of said body.
Dependencies are inferred from the claim text.