The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 26, 2018

Filed:

Aug. 26, 2016
Applicant:

Kyocera Document Solutions Inc., Osaka, JP;

Inventors:

Tomofumi Shimizu, Osaka, JP;

Junichiro Otsubo, Osaka, JP;

Yasuhiro Oishi, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/06 (2006.01); G03G 5/10 (2006.01); G03G 5/04 (2006.01); G03G 15/00 (2006.01); G03G 5/14 (2006.01);
U.S. Cl.
CPC ...
G03G 5/0607 (2013.01); G03G 5/04 (2013.01); G03G 5/0609 (2013.01); G03G 5/0631 (2013.01); G03G 5/0696 (2013.01); G03G 5/102 (2013.01); G03G 5/144 (2013.01); G03G 15/75 (2013.01); G03G 2215/0129 (2013.01); G03G 2215/0148 (2013.01);
Abstract

A single-layer electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The conductive substrate contains aluminum or an aluminum alloy. A surface of the conductive substrate has an aluminum oxide film or an aluminum alloy oxide film. The photosensitive layer is disposed directly on the conductive substrate. The photosensitive layer contains an electron transport material. The electron transport material has a reduction potential of at least −0.88 V and no greater than −0.66 V versus a reference electrode (Ag/Ag). The single-layer electrophotographic photosensitive member has a leakage onset voltage of at least 5.0 kV in a high temperature and humidity environment at a temperature of 30° C. and a relative humidity of 80%. The leakage onset voltage is a voltage applied to the single-layer electrophotographic photosensitive member at which current leakage starts.


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