Abstract: An apparatus for preparing electrophotographic photosensitive members comprises a means for forming a charge generation layer by coating a charge generation layer coating solution containing two or more kinds of charge-generating materials having different maximum absorption wavelengths, wherein the apparatus further comprises a means for measuring absorbance or transmittance at the respective maximum absorption wavelengths of said coating solution to measure the mixing ratio of the respective charge-generating materials, and a means for controlling the mixing ratio by controlling the feed amount of the respective charge-generating materials.

Abstract: An electrophotographic photosensitive member has a photosensitive layer on a conductive substrate, wherein a surface layer of said photosensitive member contains solid lubricant and silicone oil.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer containing an organic photoconductor provided on an electroconductive substrate, wherein said photosensitive layer contains a compound represented by the formula (1) shown below in an amount ranging from 0.1 to 10% by weight based on the total weight of the photosensitive layer added;Formula: ##STR1## wherein R represents ##STR2## X.sub.1, X.sub.2 and X.sub.3 each represent hydrogen atom or methyl group, X.sub.4 represents ##STR3## X.sub.5 represents hydrogen atom, an alkyl group or an alkenyl group.

Abstract: An electrophotographic photosensitive member comprises a photosensitive layer on an electroconductive substrate, the surface layer of said photosensitive layer containing lubricating resin powder and a silicon type graft polymer containing silicone in the side chain.

Abstract: An electrophotographic photosensitive member has a photosensitive layer on an electroconductive support, characterized in that the surface layer contains a fluorine type resin powder and a fluorine type block copolymer.

Abstract: A packaging arrangement and method for the user thereof to protect an electrophotographic photosensitive member which includes a packaging material for covering and protecting the electrophotographic photosensitive member from physical damage and is capable of generating a frictional electrostatic charge of the same polarity as the electrophotographic photosensitive material, whereby the packaging material has a stronger electron acceptor characteristic than the electrophotographic photosensitive material where the electrophotographic photosensitive material possesses a positive charge, and the packaging material has a stronger electron donor characteristic than the electrophotographic photosensitive material where the electrophotographic photosensitive material possesses a negative charge.