摘要:
A process for producing an electrophotographic photoreceptor including a step of coating a light-sensitive layer on an electroconductive base, a step of removing part or all of oxidants present from an air atmosphere by an oxidants removing unit, a step of dealing with a coating solution for forming the light-sensitive layer in the air atmosphere from which concentration of oxidants is suppressed by the step of removing part or all of oxidants present, and a step of suppressing variation in the concentration of oxidants in the air atmosphere, wherein the step of dealing with the coating solution for the light-sensitive layer includes at least one of the steps of preparing the coating solution for forming the light-sensitive layer, applying the light-sensitive layer and drying an applied coating.
摘要:
In a process for producing a chlorogallium phthalocyanine crystal comprising mechanically dry-grinding chlorogallium phthalocyanine and subjected to crystal conversion, the weight ratio of chlorogallium phthalocyanine to the grinding media is set at a range of from 1/5 to 1/1000. The resulting chlorogallium phthalocyanine crystal excels in the dispersibility in a binding resin and the stability in the dispersion.
摘要:
An electrophotographic photoreceptor is disclosed, comprising an electrically conductive substrate having thereon a subbing layer and a photosensitive layer, wherein the subbing layer contains (a) an organic chelate compound or an organic alkoxide compound and (b) a hygroscopic compound having at least two carboxyl groups per molecule. The subbing layer does not increase its volume resistance even on repeated use in a low humidity condition so that the photoreceptor has a small residual potential to provide satisfactory images with excellent durability.