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:
Nov. 26, 1996
Filed:
Dec. 23, 1994
Zhao-Zhi Yu, Webster, NY (US);
Charles H Tabb, Penfield, NY (US);
John F O'Brien, Fairport, NY (US);
James R Beachner, Webster, NY (US);
Mark A Gwaltney, Fairport, NY (US);
Meng H Lean, Briarcliff Manor, NY (US);
Jeffrey J Folkins, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
In a multi-color imaging apparatus utilizing a recharge step between two image creation steps, a corona generating device is used to recharge the developed image areas and untoned areas of a charge retentive surface to a lower electrical potential than that associated with the developed image areas before recharge, so that the residual voltage associated with the developed image is substantially reduced and a minimal level of negative charge is driven through the toner layer(s). An electrical charge associated with any previously developed images is substantially neutralized prior to development of any subsequent images thereon.