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:
Feb. 01, 2005
Filed:
Jun. 18, 2004
Scott M. Silence, Fairport, NY (US);
William H. Hollenbaugh, Jr., Rochester, NY (US);
Thomas R. Pickering, Webster, NY (US);
Amy L. Stamp, Rochester, NY (US);
Roger N. Ciccarelli, Rochester, NY (US);
Denise R. Bayley, Fairport, NY (US);
Samuel Kaplan, Walworth, NY (US);
Alexander N. Klymachyov, Rochester, NY (US);
John S. Walters, Pittsford, NY (US);
Padam K. Angra, Penfield, NY (US);
Scott M. Silence, Fairport, NY (US);
William H. Hollenbaugh, Jr., Rochester, NY (US);
Thomas R. Pickering, Webster, NY (US);
Amy L. Stamp, Rochester, NY (US);
Roger N. Ciccarelli, Rochester, NY (US);
Denise R. Bayley, Fairport, NY (US);
Samuel Kaplan, Walworth, NY (US);
Alexander N. Klymachyov, Rochester, NY (US);
John S. Walters, Pittsford, NY (US);
Padam K. Angra, Penfield, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An apparatus comprised of a charging component, a development component, a transport component, a photoconductive component, and a fusing component, and wherein the development component contains a toner comprising at least one binder in an optional amount of from about 85 to about 99 percent by weight, at least one colorant in an optional amount of from about 0.5 to about 15 percent by weight, and calcium stearate in an optional amount of from about 0.05 to about 2 percent by weight and wherein following triboelectric contact with carrier particles, the toner has a charge Q measured in femtocoulombs per particle diameter D measured in microns (Q/D) of from about −0.1 to about −1 fC/μm with a variation during development of from about 0 to about 0.25 fC/μm and wherein the distribution is substantially unimodal and possesses a peak width of from about 0.1 fC/μm to about 0.5 fC/μm and the toner possesses a charge to mass M, as measured in grams, ratio (Q/M) of from about −25 to about −70 μC/gram with variation of Q/M during development of from about 0 to about 15 μC/gram.