Imaging member having first and second charge transport layers

US7867677B2 · kind B2 · utility

Assignee

• Xerox Corporation · US

Inventors

• Yuhua Tong · Webster, US
• John F. Yanus · Webster, US
• Jin Wu · Pittsford, US
• Steven M. Sterling · Walworth, US
• Susan M. VanDusen · Williamson, US

Key dates

• Filing date: Sep 16, 2009
• Grant date: Jan 11, 2011
• Expiry date: Sep 16, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G5/061443
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Provided is an imaging member such as photoreceptor comprising a substrate, a charge generation layer, a first charge transport layer, a second charge transport layer, and an optional overcoat layer. The first charge transport layer is formed from a first CTL formulation comprising an aromatic monoamine and a first polymeric film forming binder material. The second charge transport layer is formed from a second CTL formulation comprising aromatic diamine and a second polymeric film forming binder material. The imaging member has gained improved properties such as removal of anti-curl layer, desirable structural flatness, electrical properties, mechanical robustness, flexibility, longevity, and copy image qualities over extended use, among others.