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:
Oct. 01, 1996
Filed:
Sep. 15, 1995
Katherine N O'Brien, Pittsford, NY (US);
Janet L Castano, Penfield, NY (US);
Donald Riley, Rochester, NY (US);
Charles D Zimmer, Webster, NY (US);
Mark D Ballou, Webster, NY (US);
Jane M Kanehl, Bloomfield, NY (US);
Sandra J Hutkowski, Penfield, NY (US);
Patricia J Donaldson, Pittsford, NY (US);
Raymond L Sommers, Fairport, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An imaging process which comprises (1) charging an imaging member in an imaging apparatus; (2) creating on the member a latent image comprising areas of high, intermediate, and low potential; (3) developing the low areas of potential with a first developer comprising carrier particles and a first negatively charged toner comprised of resin, the magenta pigment 2,9-dimethyl quinacridone, a charge additive, or a mixture of charge additives, and surface additives; (4) developing the high areas of potential with a second developer comprising carrier particles and a second black toner comprised of resin, pigment, and a charge enhancing additive that enables a positively charged toner; (5) transferring the resulting developed image to a substrate; and (6) fixing the image thereto.