Direct imaging system with addressable actuators on a development roll

US7869748B2 · kind B2 · utility

Assignees

• Xerox Corporation · US
• Palo Alto Research Center Incorporated · US

Inventors

• Lalit Keshav Mestha · Fairport, US
• John G. Shaw · Victor, US
• Palghat S. Ramesh · Pittsford, US
• Allen T. Retzlaff, Jr. · Rochester, US
• Peter M. Gulvin · Webster, US
• Pinyen Lin · Rochester, US
• Baomin Xu · Cupertino, US

Key dates

• Filing date: Sep 10, 2008
• Grant date: Jan 11, 2011
• Expiry date: Aug 7, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/1614
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Exemplary embodiments provide a direct imaging system and methods for direct marking an image using the system. The disclosed direct imaging system can eliminate the use of at least one of a charge, and/or exposure subsystems in an electrostatographic machine and related processes. Specifically, the direct imaging system can include a direct marking substrate (e.g., a printing substrate) and a development roll member closely spaced from the direct marking substrate. In one embodiment, the development roll member can include a plurality of actuator cells with each actuator cell controllably addressable to eject one or more toner particles adhered thereto. The ejected toner particles can transit the space between the donor roll member and the direct marking substrate, and thereby marking onto the direct marking substrate forming an image.