摘要:
An electrophotographic photosensitive member superior in dot reproducibility and a process cartridge and an process cartridge having the electrophotographic photosensitive member are provided. Where in a light attenuation curve drawn in a way in which the surface of the electrophotographic photosensitive member is so charged that intensity of an electric field is 15 (V/μm) to establish the surface potential of the electrophotographic photosensitive member into a given value E(V) and then exposed to light under conditions that the electrophotographic photosensitive member has a surface potential of 0.8 E(V) at a time point T(ms) passes after exposure starts, the inclination of the light attenuation curve at a time point T(ms) passes after exposure starts is represented by m, and in a dark-time surface potential attenuation curve drawn in a way in which the surface of the electrophotographic photosensitive member is charged under conditions that the electrophotographic photosensitive member has a surface potential of 0.8 E(V) at a time point T(ms) passes after charging is finished and thereafter no exposure is performed, the inclination of the dark-time surface potential attenuation curve at a time point T(ms) passes after charging is finished is represented by m′, the m and m′ satisfy |m−m′|≦0.020, provided that T=[{d2/(μ×E)}×100]×10−5, where d is the layer thickness (μm) of the charge transport layer and μ is the drift mobility [cm2/(V·s)] of the charge transport layer.
摘要:
The present invention relates to an electrophotographic apparatus of an intermediate transfer system, in which: the surface of an electrophotographic photoreceptor has a universal hardness value (HU) of 150 N/mm2 or more to 220 N/mm2 or less, and an elastic deformation rate of 48% or more to 65% or less; the surface of an intermediate transfer body has a universal hardness value (HU) of 220 N/mm2 or less, and an elastic deformation rate of 50% or more; and the universal hardness value (HU) of the surface of the electrophotographic photoreceptor is greater than the universal hardness value (HU) of the surface of the intermediate transfer body.
摘要翻译:本发明涉及一种中间转印体系的电子照相设备,其中:电子照相感光体的表面的通用硬度值(HU)为150N / mm 2以上至220N / mm 2以下,弹性变形率为48%以上65%以下; 中间转印体的表面的通用硬度值(HU)为220N / mm 2以下,弹性变形率为50%以上; 并且电子照相感光体的表面的通用硬度值(HU)大于中间转印体的表面的通用硬度值(HU)。
摘要:
An electrophotographic photosensitive member is constituted by disposing a protective layer and a photosensitive layer on an electroconductive support in this order. The protective layer is characterized by containing an electroconductive particles, fluorine-containing resin particles and a binder resin. The photosensitive layer is suitable for providing an electrophotographic apparatus showing excellent electrophotographic characteristics such as a high photosensitivity and a low residual potential and also providing good image forming properties under any environmental condition, improved pause memory characteristics and a decreased transfer memory.
摘要:
An electrophotographic photosensitive member is constituted by a support and a photosensitive layer disposed on the support. The photosensitive layer comprises a charge-transporting material and a resin obtained by radiation curing of a compound having a functional group represented by the following formula (1): wherein Ar denotes a substituted or unsubstituted arylene group and R1 denotes a hydrogen atom or methyl group.
摘要:
An electrophotographic photosensitive member includes an electroconductive substrate, a photosensitive layer disposed on the electroconductive substrate, and a protective layer disposed on the photosensitive layer, the protective layer containing a resin formed by polymerization of compounds each having two or more ion polymerizable functional groups, and electroconductive particles.