Patent ID: 7256808

Claim:
A printing device for printing sheet elements ( 1 ) that are serially fed to the printing device, which sheet elements comprise a surface material, in particular product labels made of temperature-sensitive paper or paper substitute materials, comprising a feed device for feeding the sheet elements ( 1 ) to a print head which acts on the sheet element ( 1 ), wherein said print head comprises a thermal slat ( 3 ) which is supported flexibly by a carrier device ( 8 ) such that between the thermal slat ( 3 ) and the sheet element ( 1 ) a counterpressure surface is formed at a predefined surface pressure on the sheet element ( 1 ) to be printed, characterised in that the thermal slat ( 3 ) is associated with an adaptor means ( 7 ) that is exchangeable together with said thermal slat ( 3 ), with which adaptor means ( 7 ) the excursion of a resilient holding means ( 9 ) for the thermal slat ( 3 ) can be adjusted such that the surface pressure is constant irrespective of the width of the thermal slat ( 3 ).