Patent ID: 8469481
Filing Date: 2013-06-25
Classification: B41J,G03G

Abstract:
1. A method to determine a character width of characters constructed from printed dots in a printing or copying device, in which the printed dots are generated at a location of individual printed elements of a print raster made up of the printed elements, comprising the steps of: generating in a first raster cell of the print raster a first test pattern that does not cover an entire area from multiple printed dots, and measuring the first raster cell with regard to its printed dot areal coverage to create a first value; generating in a second raster cell of the print raster a second test pattern that does not cover an entire area and in which printed dots are arranged at least in part at different printed element locations in comparison to the first test pattern, and measuring the second test pattern with regard to its printed dot areal coverage to create a second value; and calculating a ratio of the first and second values of the printed dot areal coverages of the first and the second test patterns and calculating printed dot size with aid of the ratio.