ELECTROPHOTOGRAPHIC SYSTEM, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY UNIT

摘要

An electrophotographic system employing a laser having an oscillation wavelength in the range of 380-450 nm in order to reduce the diameter of a beam spot, in which an image having a super high resolution and a super high image quality can be produced. The electrophotographic system comprises an electrophotographic photosensitive body unit including an electrophotographic photosensitive body having a photosensitive layer formed on a tubular support and a member fitted to the end part thereof, and an exposing means including a laser having an oscillation wavelength in the range of 380-450 nm. The beam spot being formed on the surface of the electrophotographic photosensitive body by a laser beam from the laser has a diameter (Di[mum]) of 40mum or less and cylindrical deflection (De[mum]) of the electrophotographic photosensitive body unit is not larger than 1.5 times the diameter (Di[mum]) of the beam spot.