| abstract |
PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having a high sensitivity characteristic even in a wavelength range of 380 to 500 nm, a small photo memory and a small potential fluctuation upon repeated use, and which is practical and stable. Provided are a process cartridge and an electrophotographic apparatus capable of obtaining a high-quality output image. An electrophotographic photoreceptor and a process cartridge which are irradiated with a semiconductor laser beam having a wavelength of 380 to 500 nm, have a photosensitive layer on a support, and the photosensitive layer contains an azo pigment represented by the formula (1). And electrophotographic devices. Embedded image (Wherein, Ar represents a substituted or unsubstituted aromatic hydrocarbon ring group or heterocyclic group which may be directly or via a bonding group, Cp represents a coupler residue having a phenolic hydroxyl group, n represents an integer of 1 to 3. -N = N -Cp does not bind to the same benzene ring more than once) |