Composite pigment crystals, and a method for manufacturing the same, and the composite pigment crystals electrophotographic photoreceptor using, and an image forming apparatus

摘要

PROBLEM TO BE SOLVED: To provide a composite pigment comprising a specific gallium phthalocyanine compound and an azo compound, capable of achieving high image quality and high stability in an electrophotographic type image-forming device.SOLUTION: The gallium phthalocyanine compound expressed by general formula (B) is used. In general formula (B), Y represents an aryl group which may have a substituent; and n is an integer of 1-3.