Donor rolls and methods of making donor rolls

US6327452A · kind A · utility

Assignee

• Xerox Corporation · US

Inventors

• Timothy R. Jaskowiak · Lyndonville, US
• Ann M. Kazakos · Webster, US
• Joy L. Longhenry · Webster, US
• Michelle L. Schlafer · Fairport, US
• Grethel K. Mulroy · Pittsford, US
• Thomas L. DiGravio · Ontario, US
• Kevin H. Taft · Williamson, US
• Frederick B. White · Farmington, US
• Mark Gelin · Penfield, US

Key dates

• Filing date: Feb 14, 2000
• Grant date: Dec 4, 2001
• Expiry date: Feb 14, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G2215/0863
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A roller includes a core and a ceramic coating formed over the core. The roller has a composite runout of less than 20 .mu.m and a total indicator reading runout of less than 7 .mu.m. The ceramic coating has a smooth finish and has controlled electric properties. This roller can be used as a donor roller for transporting toner to a photoconductive member so as to achieve high-quality image development.