Photoelectrographic method of imaging with an element comprising a moisture insensitive binder

A photoelectrographic method of imaging comprising the steps of:

• (a) providing a photoelectrographic element comprising a conductive layer in electrical contact with an acid photogenerating layer which (i) is free of photopolymerizable materials and (ii) comprises an electrically insulating binder and an acid photogenerator wherein the electrically insulating binder is a copolymer comprising at least two different repeating units, one of said repeating units selected from the group consisting of:
• ##STR20## wherein R represents an alkylene group having 2, 4 or 6 carbon atoms and X represents an aromatic radical selected from the group consisting of unsubstituted aromatic radicals, aromatic radicals having an acyl substituent, aromatic radicals having an alkyl substituent, aromatic radicals having an alkoxy substituent and aromatic radicals having a halogen substituent;
• and another of said repeating units selected from the group consisting of:
• ##STR21## wherein Y represents a lower alkyl radical having from 1 to about 8 carbon atoms, and Z represents a hydroxy radical;
• (b) carrying out the following steps (b) (i) and (b) (ii) concurrently or separately in any order, to form an electrostatic latent image,
• (i) imagewise exposing the acid photogenerating layer to actinic radiation,
• (ii) electrostatically charging the acid photogenerating layer, and
• (c) developing the electrostatic latent image with charged toner particles.