Double-sleeved electrostatographic roller and method of using

US6377772B1 · kind B1 · utility

Assignee

• NexPress Solutions LLC · US

Inventors

• Arun Chowdry · Pittsford, US
• Craig M. Cody · Scottsville, US
• Steven Cormier · Rochester, US
• Dennis J. Grabb · Sodus, US
• Diane M. Herrick · Rochester, US
• John W. May · Rochester, US
• Edward T. Miskinis · Rochester, US
• Michel F. Molaire · Rochester, US
• Biao Tan · Penfield, US
• Thomas Nathaniel Tombs · Brockport, US
• Joseph A. Pavlisko · Pittsford, US

Key dates

• Filing date: Oct 4, 2000
• Grant date: Apr 23, 2002
• Expiry date: Oct 4, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/0119
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In accordance with the invention, there is provided a reproduction method including forming a toner image on a moving primary image-forming member (PIFM) which is a first double-sleeved roller including a rigid cylindrical core member, a replaceable removable compliant inner sleeve member (ISM) in nonadhesive intimate contact with and surrounding the core member, and a replaceable removable photoconductive outer sleeve member (OSM) in nonadhesive intimate contact with and surrounding the ISM; electrostatically transferring the toner image, from the PIFM to a counter-rotating intermediate transfer member (ITM) which is a second double-sleeved roller, in a first transfer nip width produced by a pressure contact between the PIFM and the ITM, an electric field urging the toner image from the PIFM to the ITM, wherein the ITM includes a rigid cylindrical core member, a compliant ISM in nonadhesive intimate contact with and surrounding the core member, and a compliant resistive OSM in nonadhesive intimate contact with and surrounding the ISM.