Patent ID: 8673525
Filing Date: 2014-03-18
Classification: G03G

Abstract:
1. An electrophotographic photoreceptor comprising, in this order: a substrate; a photosensitive layer; and a protective layer including oxygen and gallium, the protective layer including a first region and a second region that is present closer to the substrate than the first region and has a ratio of the number of atoms of oxygen to the number of atoms of gallium (oxygen/gallium) larger than that in the first region, the first region and the second region each comprising oxygen, the second region having a ratio of the number of atoms of oxygen to the number of atoms of gallium (oxygen/gallium) of from about 1.30 to 1.65, and the first region having a ratio of the number of atoms of oxygen to the number of atoms of gallium (oxygen/gallium) of from 1.00 to 1.30.