Patent ID: 7446788
Filing Date: 2008-11-04
Classification: B41J

Abstract:
1. A method for transferring an image of predetermined length onto a substrate by selective energisation of a row of printing elements in a printhead of a printing apparatus, the image being rendered in memory as a series of rows of pixels, the apparatus being set up to print out the rendered rows of pixels, and the apparatus being set up to control spacing between printed rows of pixels in a direction of a length of the image resulting from relative displacement between the printhead and the substrate by controlling a delay between successive energisations of the printing elements, wherein operational characteristics of the printing apparatus are determined, and the image is rendered such that a number of rows of pixels in the rendered image is no greater than a maximum number of rows of pixels which can be printed in the length of the image given the operational characteristics of the printing apparatus, and wherein a minimum delay possible between successive energisations of the printing elements is calculated from the operational characteristics of the printing apparatus, and a resolution of the image is selected such that the delay between the energisations of the printing element to print out successive rows of the rendered image is always at least as great as the calculated minimum delay.