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US 9,002,237 B2Granted
Electrostatic imaging member and methods for using the same
AssigneeXerox Corporation
InventorsGregory McGuire, Yu Liu, Richard A. Klenkler
Life of this patent
Estimating the term…
Abstract
Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image through charge acceptance control and without the need for conventional post charging photodischarge, eliminating process steps and avoiding limitations in system speed due to the transit time of charge carriers after light exposure.
Claims10
An image forming apparatus for forming images on a recording medium comprising:
- a) an electrostatic imaging device having a charge retentive-surface for receiving an electrostatic latent image thereon, wherein the electrostatic imaging device comprises
- an electrostatic imaging member comprising
- a substrate,
- a charge generation layer disposed on the substrate, and
- a charge transport layer comprising a charge transport molecule disposed on the charge generation layer, wherein electrostatic imaging member is light-sensitive;
- wherein the charge transport molecule is selected from the group consisting of
- wherein X is an alkyl, alkoxy, aryl, a halogen, and mixtures thereof;
- wherein X is an alkyl, alkoxy, aryl, a halogen, and mixtures thereof;
- wherein X, Y and Z are independently alkyl, alkoxy, aryl, a halogen, or mixtures thereof, and wherein at least one of Y and Z are present;
- wherein X, Y and Z are independently alkyl, alkoxy, aryl, a halogen, or mixtures thereof, and wherein at least one of Y and Z are present;
- and mixtures thereof;
- a single exposing device for selectively exposing a surface of the electrostatic imaging member to light;
- and
- a single electrostatic charging device for charging the surface of the electrostatic imaging member,
- wherein charge is not accepted by the exposed surface of the electrostatic imaging member and the charge is accepted by the unexposed surface of the electrostatic imaging member, further wherein the exposing device is located before the electrostatic charging device such that the exposing the surface of the electrostatic imaging member to light precedes the charging the surface of the electrostatic imaging member;
- b) a development component for applying a developer material to the charge-retentive surface to develop the electrostatic latent image to form a developed image on the charge-retentive surface;
- c) a transfer component for transferring the developed image from the charge-retentive surface to a copy substrate;
- and
- d) a fusing component for fusing the developed image to the copy substrate;
- wherein the electrostatic charging device is located between the exposing device and the development component.
17 more elements
An image forming apparatus for forming images on a recording medium comprising:
- a) an electrostatic imaging device having a charge retentive-surface for receiving an electrostatic latent image thereon, wherein the electrostatic imaging device comprises
- an electrostatic imaging member comprising
- a substrate,
- a charge generation layer disposed on the substrate, and
- a charge transport layer comprising a charge transport molecule disposed on the charge generation layer, wherein electrostatic imaging member is light-sensitive;
- wherein the charge transport molecule is selected from the group consisting of
- wherein X is an alkyl, alkoxy, aryl, a halogen, and mixtures thereof;
- wherein X is an alkyl, alkoxy, aryl, a halogen, and mixtures thereof;
- wherein X, Y and Z are independently alkyl, alkoxy, aryl, a halogen, or mixtures thereof, and wherein at least one of Y and Z are present;
- wherein X, Y and Z are independently alkyl, alkoxy, aryl, a halogen, or mixtures thereof, and wherein at least one of Y and Z are present;
- and mixtures thereof;
- an exposing device for selectively exposing a surface of the electrostatic imaging member to light;
- and
- an electrostatic charging device for charging the surface of the electrostatic imaging member;
- wherein charge is not accepted by the exposed surface of the electrostatic imaging member and the charge is accepted by the unexposed surface of the electrostatic imaging member, wherein the exposing device is located before the electrostatic charging device such that the exposing the surface of the electrostatic imaging member to light precedes the charging the surface of the electrostatic imaging member, further wherein the electrostatic charging device is the only charging device present in the electrostatic imaging device and no other electrostatic charging device is located before the exposing device;
- b) a development component for applying a developer material to the charge-retentive surface to develop the electrostatic latent image to form a developed image on the charge-retentive surface;
- c) a transfer component for transferring the developed image from the charge-retentive surface to a copy substrate;
- and
- d) a fusing component for fusing the developed image to the copy substrate;
- wherein the electrostatic charging device is located between the exposing device and the development component.
17 more elements
Dependencies are inferred from the claim text.