Electrophotographic image formation comprising an arylamine in a

Details Electrophotographic image formation comprising an arylamine in a Electrophotographic image formation comprising an arylamine in a

1992-08-12

1994-08-09

Rosasco, Steve

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430138, 430110, 430 98, 430 57, 430 58, 430 59, 430 72, G03G 908

Patent

active

053365828

ABSTRACT:
An electrophotographic method for image formation comprising forming an electrostatic latent image on an electrophotographic photoreceptor comprising a conductive substrate having formed thereon a photosensitive layer containing a high polymeric arylamine compound represented by formula (I): ##STR1## wherein n represents an integer of from 5 to 5000; m represents 0 or 1; y represents 1, 2, or 3; Ar represents ##STR2## wherein R represents a methyl group, an ethyl group, a propyl group, or a butyl group; Ar' represents ##STR3## wherein R is as defined above; X represents an alkylene or isoalkylene group having from 2 to 10 carbon atoms; and Z represents ##STR4## or --Ar--(W).sub.k --Ar--, wherein Ar is as defined above; W represents --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --O--, --S--, ##STR5## (wherein s represents 0, 1, or 2; and R and Ar' are as defined above); and k represents 0 or 1, developing the latent image with a microcapsule toner containing in its core at least a polymer dispersed in a solvent, and transferring the toner image to paper. Copies of satisfactory image quality can be obtained in a stable manner for an extended period of time without being accompanied by the phenomenon of copy image disappearance.

REFERENCES:
patent: 4933249 (1990-06-01), Mikami

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