Patent ID: 6040105
Filing Date: 2000-03-21
Classification: G03G

Abstract:
A method of preparation of an electrophotographic photoreceptor comprising cleaning a support by applying a cleaning agent to a surface of said support and providing a photosensitive layer on the surface of the cleaned support,said cleaning agent including an aqueous liquid containing a surface active agent comprising Si and Na and having a pH of 9.5 to 13.0, an amount of said Si and said Na remaining on said surface which, when evaluated in terms of ESCA, satisfies the following relationship with respect to aluminum or nickel constituting a major element of said support;0<[Si(surf)/Xs-Si(bulk)/Xb].ltoreq.0.50<[Na(surf)/Xs-Na(bulk)/Xb].ltoreq.0.3,whereinSi(surf): ESCA measurement of silicon of said support surface after said cleaningNa(surf): ESCA measurement of sodium of said support surface after said cleaningSi(bulk): ESCA measurement of silicon of support bulkNa(bulk): ESCA measurement of sodium of said support bulkXs: ESCA measurement of nickel or aluminum of said support surface after said cleaning of said support surfaceXb: ESCA measurement of nickel or aluminum of said support bulk.