ELEMENT PHOTOSENSIBLE AU SELENIUM, ET METHODE D'UTILISATION

摘要

1319341 Photoconductive element XEROX CORP 22 June 1970 [25 June 1969] 30099/70 Heading H1K A photoconductive element comprises a photoconductive insulating layer which comprises a major proportion of a vitreous selenium alloy in the form of a matrix having dispersed randomly therein a minor proportion of an insulating resin. An alloy of selenium with As, Sb, Bi, Te, or S and defining quantities of F, Cl, Br or I is pulverized to give particles of less than 10 Á and mixed with chlorinated rubber or a phenoxy resin with or without an organic solvent. The photoconductive mixture is coated on a brass foil and annealed first at 50‹ C. and then 165‹ C. The annealed plate is fitted over an aluminium drum prior to use. The annealing process allows the alloy to flow and coalesce the given discrete particles or areas of resin dispersed randomly through the alloy matrix with some partial networks of resin. This structure is said to be flexible. Other resins and conductive supports are specified. Specification 1,319,342 is referred to.