The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2000
Filed:
Sep. 29, 1999
Kent J Evans, Lima, NY (US);
Robert F Dunham, Walworth, NY (US);
Alfred H Willnow, Ontario, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A process for fabricating electrophotographic imaging members comprising providing a substrate with an exposed surface, simultaneously applying, from a coating die, two wet coatings to the surface, the wet coatings comprising a first coating in contact with the surface, the first coating comprising photoconductive particles dispersed in a solution of a film forming binder and a predetermined amount of solvent for the binder and a second coating in contact with the first coating, the second coating comprising a solution of a charge transporting small molecule and a film forming binder dissolved in a predetermined amount of solvent for the transport molecule and the binder, drying the two wet coatings to remove substantially all of the solvents to form a dry first coating having a thickness between about 0.1 micrometer and about 10 micrometers and dry second coating having a thickness between about 4 micrometers and 20 micrometers, applying at least a third coating in contact with the second coating, the third coating comprising a solution containing having a charge transporting small molecule, film forming binder and solvent substantially identical to charge transporting small molecule, film forming binder and solvent in the second coating, and drying the third coating to from a dry third coating having a thickness between about 13 micrometers and 20 micrometers.