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:
Mar. 23, 1993
Filed:
Aug. 12, 1991
Holden R Caine, Albany, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A multiple printhead thermal printer has a receiver and a print drum supporting the receiver as dye is thermally transferred to the receiver during printing. Electronic circuitry controls registration of the receiver during printing so that the color separations are aligned to produce a clear, crisp image. This registration is achieved by introducing line delays to receive the image data prior to the image data reaching the modulators which process the image data for the second and third printheads. The position of the image produced by a thermal printhead along the print direction is determined by when data is sent to the printhead. Delaying the printing of a line by some fraction of a line time proportionally repositions the print line by a fraction of a line.