Ricoh Company, Ltd.

Yuuko Komai

Masaomi Sasaki

Masayuki Shoshi

Hongguo Li

An electrophotographic photoconductor contains a conductive support; and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula &#x3c;&#x3c;1&#x3e;&#x3e;ArN&#x2550;N&#x2014;Cp),&#x2003;&#x2003;(&#x3c;&#x3c;1&#x3e;&#x3e;)wherein in the general formula &#x3c;&#x3c;1&#x3e;&#x3e;, Ar is a substituted or non-substituted aromatic series hydrocarbon group or an aromatic series heterocyclic ring group which can be bonded by way of a bonding group; Cp is a coupler residual group; n represents an integer of 1, 2, 3, or 4, at least one of the Cp is a coupler residual group selected from the group consisting of general formulae &#x3c;&#x3c;2&#x3e;&#x3e;, &#x3c;&#x3c;3&#x3e;&#x3e;, and &#x3c;&#x3c;4&#x3e;&#x3e; 

Electrophotographic photoconductor, process for forming an image, image forming apparatus and process cartridge for the same

Providing an electrophotographic photoconductor comprising a conductive support and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula &#x3c;&#x3c;1&#x3e;&#x3e;.Ar&#xe00c;N&#x2550;N&#x2014;Cp)&#x2003;&#x2003;general formula &#x3c;&#x3c;1&#x3e;&#x3e;(in the general formula &#x3c;&#x3c;1&#x3e;&#x3e;, Ar expresses one of a substituted or non-substituted aromatic carbon hydride group and heterocyclic ring aromatic series group which can be combined by way of a bond group; Cp expresses a coupler residual group; n expresses an integer of one of 1, 2, 3, and 4; at least one of the Cp is a coupler residual group selected from one of the following general formulae &#x3c;&#x3c;2&#x3e;&#x3e;, &#x3c;&#x3c;3&#x3e;&#x3e;, and &#x3c;&#x3c;4&#x3e;&#x3e;.)

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Shizuoka, Japan

Yuuko Komai