Abstract: The ink jet print head includes a plurality of modules in a stacked construction or a single module. The modules are disposed in a housing. The nozzle faces of the modules protrude into associated slits of a base plate of the housing, and the modules are electrically connected to a bus adapter. The modules are pressed, by means of a spring element and a common adapter for their ink connection stubs, against an end face of the slits and against the base plate. The assembly is self-adjusting, and its accuracy depends only on the dimensional accuracy of the base plate, the spring element, and a side edge of the modules which is in effect a reference edge.

Abstract: In a method for storing security relevant data in a postage meter the same data (A, B, C, D) are stored in at least four memory areas (a, b, c, d). The data (A, B, C, D) of each memory area (a, b, c, d) are compared with the data (A, B, C, D) of other memory areas (a, b, c, d). In dependence on these comparisons (V1 to V6) the memory area or memory areas (a, b, c, d) having faulty data (A, B, C, D) are ascertained and if suitable are reloaded with data (A, B, C, D) from a memory area (a, b, c, d) with fault free data. The method operates at small expense and can correct the ascertained data faults.

Abstract: The invention concerns a postage meter with an electrothermal printing device by means of which value indications and/or graphics are printed onto a postage item moved past it at a predetermined speed by the transfer of color particles in a graphic forming distribution from a carrier web (114), which carrier web is heated by means of a thermal print head in correspondence to the graphic forming distribution and is driven past the printing device, with a counterpressure element (116) standing oppositely to the thermal print head (110). As the counterpressure element a counterpressure roll (116) is provided which is movable in a direction perpendicular to the printing surface, which counterpressure roll is so yieldingly supported on a shaft arranged parallel to the printing ledge (112) of the thermal print head (110) that its contact face with the postage item can take on different angles to the printing ledge (112) in a plane containing the printing ledge (112) and the shaft (130).