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. 19, 1993
Filed:
Jun. 26, 1990
Martin Potucek, Greece, NY (US);
Mary A Hadley, Greece, NY (US);
Keith W Agar, Henrietta, NY (US);
Jeffrey A Small, Chili, NY (US);
Hieu T Pham, Webster, NY (US);
Yee S Ng, Fairport, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A non-impact printer apparatus is described that includes a recording head having a plurality of recording elements such as LED's for recording on a recording medium. A plurality of driver chips are provided on the head and each includes a plurality of current driving channels for selectively driving a plurality of recording elements in accordance with respective image data signals. The driver chips each further include an extra current driving channel not associated with a recording element for generating a current related to that sent to said recording elements. Monitoring of the current in the extra channel is provided to permit for changes of current to the recording elements and/or corrected image data to provide fine tuned control over uniformity of the recording elements.