Abstract: This invention presents a process and an apparatus for repeatedly forming a high contrast image on a photosensitive member substantially comprising a conductive layer a photoconductive layer and an insulating layer. According to this invention, during the processing steps of a latent image formed on the photosensitive member, an exposure step or means is provided for preventing the effect of a corona discharge of the same polarity as that of the photoconductive layer from affecting the succeeding latent image formation on the photosensitive member.

Abstract: A process for production of photoconductive cadmium sulfide is characterized in that a flux is added to cadmium sulfide in an amount of at least 20 weight percent based on the cadmium sulfide, and the resulting mixture is fired at a temperature higher than the melting point of said flux by at least 50.degree. C.

Abstract: The electrophotographic photosensitive member has a photoconductive layer containing photoconductive particles each of which has a water insoluble compound of a metal element of Group VIII of the Periodic Table deposited on the surface.

Abstract: A recording member includes a recording layer capable of recording in response to applied heat. The heat is produced by absorption of high intensity radiation which defines recording information. The recording layer has a radiation absorption layer and an anti-reflection layer capable of preventing the reflection of radiation at the radiation absorption layer.

Abstract: A photoconductive material for electrophotography is composed of photoconductive cadmium sulfide particles provided with a hydroxide, oxide or sulfide of a metal element or semiconductive element on the particle surface. The photoconductive material dispersed in a binder resin can be used as a photoconductive layer for an electrophotographic photosensitive member.

Abstract: This specification discloses a recording apparatus using coherent light which comprises coherent light generating means for generating coherent light, light modulating means into which the coherent light from the coherent light generating means enters, whereby when in ON state, the light modulating means emits the entering coherent light outwardly as zero-order light having a certain angle of emergence and when in OFF state, the light modulating means derives the entering coherent light as a primary light having another angle of emergence, the primary light being intercepted by an intercepting member so as not to be emitted outwardly, means for applying modulating signal to the light modulating means for controlling ON-OFF of the light modulating means, deflector means for deflecting the zero-order light emitted from the light modulating means, and a recording medium upon which the deflected zero-order light is thrown and which is sensitized by the zero-order light from the light modulating means when in ON s

Abstract: This invention presents a process and an apparatus for repeatedly forming a high contrast image on a photosensitive member substantially comprising a conductive layer, a photoconductive layer and an insulating layer. According to this invention, during the processing steps of a latent image formed on the photosensitive member, an exposure step or means is provided for preventing the effect of a corona discharge of the same polarity as of the polarity of the photoconductive layer from affecting the succeeding latent image formation on the photosensitive member.

Abstract: A laser beam recording member capable of recording information by absorbing the radiation energy of a laser beam to cause a thermal melting deformation and/or evaporation removal at the portion exposed to the laser beam wherein the recording layer is composed of a non-metallic layer mainly composed of S, Se, Te or chalcogenide compounds thereof.

Abstract: A recording member for recording a laser beam bearing an information by deformation of a recording layer comprises a support, a recording layer of a non-metallic material and a protecting layer which is not destroyed by the laser beam.