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:
Jun. 14, 1994
Filed:
Feb. 05, 1993
Robert H Melino, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A print bar color printing system wherein exposure occurs through previously deposited color toner is compensated for light absorption in the previously deposited toner by selectively increasing the output of the print bar during a pixel time interval. Each time interval is divided into sublines which are available for applying image data. One subline transmits image data corresponding to the color of the image to be exposed at the photoreceptor surface, while the second subline carries information as to previously exposed and developed color images which overlap the subsequent image. The print bar is then selectively addressed to form the main color image with a pulse of relatively long duration, or duty cycle, followed by a pulse having a relatively short duty cycle. The second or third pulses represent the additional exposure level needed to compensate for light absorbed by previous color toners formed on the belt during the earlier development process.