Patent · US Active

Negatively-chargeable electrophotographic photosensitive member, image forming process and electrophotographic apparatus

US7932005B2 · kind B2 · utility

1Cited by

16References

11Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Jun Ohira · Soma, JP
Makoto Aoki · Tama, JP
Kazuto Hosoi · Nara, JP

Key dates

Filing date	Jan 7, 2010
Grant date	Apr 26, 2011
Priority date	—
Expiry date	Jan 7, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG03G5/08278
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A negatively-chargeable electrophotographic photosensitive member, has, between a cylindrical substrate and a photoconductive layer, a first lower-part layer formed of a non-single crystal material containing silicon atoms and a second lower-part layer formed of a non-single crystal material containing silicon atoms, and on its photoconductive layer has an upper-part layer formed of a non-single crystal material containing silicon atoms. The first lower-part layer is a layer containing a periodic-table Group 13 element, and the upper-part layer has a region capable of retaining electrification charges.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.