Charles A Ruffino

US Patent:

6595611, Jul 22, 2003

Filed:

Oct 1, 2002

Appl. No.:

10/262460

Inventors:

Charles A. Ruffino - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2938

US Classification:

347 5, 347 23

Abstract:

An ink recorder and a method of tracking ink ejections from nozzles of a printhead in the ink recorder to bypass or reduce maintenance of the nozzles is provided. In one aspect, the ink recorder includes: a printhead with a plurality of ink ejecting nozzles arranged in a single column; a print controller with a first and a second raster buffer; a first and a second stroke buffer; a DMA channel; a print engine; and a maintenance controller. In another aspect, the method controls printhead nozzle maintenance during a print job in an ink recorder that prints an image using a plurality of color inks, wherein the single column of nozzles in the printhead includes a segment of active nozzles associated with each color ink and one or more inactive nozzles between each adjacent segment.

US Patent:

63153793, Nov 13, 2001

Filed:

Oct 26, 1999

Appl. No.:

9/426857

Inventors:

Jerry F. Adams - Waterport NY
Anthony E. Audi - Rochester NY
Gary K. Bauer - Ontario NY
Thomas J. Brockman - Macedon NY
Bruce A. Collier - Williamson NY
William M. Lindenfelser - Rochester NY
Charles A. Ruffino - Webster NY

Assignee:

Xerox Corporation - Stamford CT

International Classification:

B41J 2015

US Classification:

347 14

Abstract:

A printing process determines a maximum pixel printing rate of a printer. An area coverage of an image to be printed is estimated. When the area coverage multiplied by the printing speed exceeds the maximum pixel printing rate, the area coverage of the images to be printed is automatically reduced and the resulting image is printed.