Abstract: A franking machine is described including a unit for generating franking data and a unit for printing data connected to the data generating unit and adapted to receive franking data therefrom, the printer unit including at least one member for printing data, wherein the franking machine includes additional means for wireless communication between the print member and the data generating unit to enable identification of the print member by the data generating unit.

Abstract: The invention concerns an electronic franking machine comprising franking means and means for recording the number of franking operations. It comprises means for connection via a computerized communication network, to a central server of a computerized central control center, and means forming a computerized server adapted to transmit and receive computerized requests and responses for performing transactions with the central server, said transactions being selected among at least a resetting of the means recording the franking operations, a transfer of files constituting the records of the recording means and a franking cycle.

Abstract: A inkjet printer cartridge is described including at least one print head for printing data on a support, wherein a thin printed circuit is permanently fixed to the printer cartridge and a miniature data processing unit fixed to the printed circuit analyzes a stream of printing commands for controlling the print head to authenticate the data to be printed on the support.

Abstract: A franking machine is described including a unit for generating franking data and a unit for printing data connected to the data generating unit and adapted to receive franking data therefrom, the printer unit including at least one member for printing data, wherein the franking machine includes additional means for wireless communication between the print member and the data generating unit to enable identification of the print member by the data generating unit.

Abstract: A inkjet printer cartridge is described including at least one print head for printing data on a support, wherein a thin printed circuit is permanently fixed to the printer cartridge and a miniature data processing unit fixed to the printed circuit analyzes a stream of printing commands for controlling the print head to authenticate the data to be printed on the support.

Abstract: The invention concerns a method for protecting sensitive data against overflow in a stack, memory space reserved for part of a program. Said method comprises an operation which consists in assigning a stack to each program part, during which the most upstream stack relatively to the displacement direction of an indicator in a stack, is assigned a task for operating on said sensitive data. Preferably, said method comprises the execution of a single task operating on said sensitive data.