ELECTROPHOTOGRAPHIC CARTRIDGE IMAGE FORMING METHOD AND IMAGE FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an image forming method and device capable of obtaining images of a high gradation and high resolution. SOLUTION: The image forming device having at least a photoreceptor, toners and an exposure device has a photosensitive layer containing an oxytitanium phthalocyanine and is characterized in the that the oxytanium phthalocyarsine has a distinct diffraction peak at a Bragg angle (2q±0.2) 27.3 deg. in the X-ray diffraction by a Cukαray and that the volume average grain size (Dv) of the toners is 3 to 8μm and the relation between the volume average grain size (Dv) and a number average grain size (Dn) is 1.0<=Dv/Dn<=1.3.