International Business Machines Corporation

Barnes R Kendrick, Jr

Phuc Ky Do

Demetrios Troupes

Dennis R Hedrick

Carol E Wyke

Where the ribbon advance mechanism of a printer is driven by the motion of the print head carrier, ink in the ribbon will be differentially depleted depending upon the density of print. This varied depletion becomes a problem for printers capable of printing high density graphics images, particularly color filled images. In accordance with this invention, the printing density is monitored and when the printing density exceeds a predetermined value, the print head is caused to be moved an amount greater than that necessary to position the print head at a succeeding print position so as to thereby cause additional ink ribbon to be advanced and to avoid overprinting on areas of the ribbon where high density printing has occurred.

Growing community of inventors

Charlotte, NC, United States of America

Barnes R Kendrick, Jr