Patent 7158265 was granted and assigned to R.R. DONNELLEY & SONS COMPANY on January, 2007 by the United States Patent and Trademark Office.
A method of calibrating a gravure engraving machine includes the steps of providing an engraving signal to the engraving machine to cause production of a cell, measuring the volume of the cell, comparing the measured cell value to a predetermined cell volume and adjusting the engraving cell in accordance with the comparison.