Method for controlling operating principle of thermal transfer of print head, involves supplying energy to printing element to transfer color from color transfer device to substrate for producing pixel of bar code

摘要

The method involves supplying energy to a printing element (102.3) in a supplying step to transfer color from color transfer device (103) to a substrate (104) for producing a pixel of a bar code. The color transfer device is attached to the print head (102.1) and substrate is attached to the color transfer device. The amount of energy is adjusted depending on the condition of pixels in the bar code. Independent claims are also included for the following: (1) a printer with a printing device operating according to thermotransfer principle (2) a franking machine with a printer (3) a color transfer device, particular ribbon cartridge, for a printer.