Systems and methods for cleaning bias charge roll surface in printing systems
AssigneeXerox Corporation
InventorsYu Liu, Johann Junginger, Sarah Vella, Nan-xing Hu, Vlad Skorokhod, Greg McGuire
Life of this patent
Estimating the term…
Abstract
A vibration-assisted bias charge roll cleaning system includes a bias charge roll cleaning member connected to an actuator for causing the cleaning member to vibrate. The actuator is controlled to vibrate according to a predetermined pattern, and at desired frequencies at particular modes. The cleaning member is configured to be movable to a contact-cleaning position and a cleaning member cleaning position at which the cleaning member is separate from the charge roll.
Claims18
A xerographic printing system, comprising:
- a bias charge roll;
- a bias charge roll vibration-assisted cleaning system configured to vibrate a cleaning member in a charge roll cleaning position and a cleaning member cleaning position, the cleaning system comprising:
- an actuating unit;
- and
- an elastomeric cleaning member, the actuating unit configured for causing the elastomeric cleaning member to vibrate and contact the bias charge in the charge roll cleaning position at a first frequency;
- and
- causing the cleaning member to vibrate in the cleaning member cleaning position at a second frequency, the second frequency being different than the first frequency.
A bias charge roll cleaning method useful for xerographic printing, comprising:
- causing a charge roll cleaning member to contact a bias charge roll for cleaning a surface of the charge roll in a charge roll cleaning position;
- causing the cleaning member to vibrate in the charge member cleaning position at a first frequency intermittently and during printing;
- and
- causing the cleaning member to vibrate in the cleaning member cleaning position at a second frequency, the second frequency being different than the first frequency.
An image forming apparatus useful for xerographic printing, comprising:
- a bias charge roll;
- a photosensitive member for receiving an electrostatic latent image;
- a development system for applying developer material to said photosensitive member surface;
- a transfer system for transferring the developed image from said photosensitive member surface to a substrate;
- a cleaning blade for contacting said photosensitive member surface;
- and
- a vibration-assisted cleaning system comprising:
- an actuating unit to provide said vibration by causing the cleaning member to vibrate in a charge member cleaning position at a first frequency intermittently and during printing;
- and
- causing the cleaning member to vibrate in a cleaning member cleaning position at a second frequency, the second frequency being different than the first frequency;
- and
- an elastomeric cleaning member in intermittent contact with said bias charging roll surface to provide cleaning.
Dependencies are inferred from the claim text.