A printing device system comprises a printing roller that has a blanket adhered to an outer surface thereof. The invention may include an open and extensible standards-based architecture that may be used to create, monitor, test, or otherwise manage internal controls by capturing, organizing, translating, and exchanging controls data, tests, and test results across organizational boundaries and between an enterprise and its external auditors. The means for detecting the fixed relationship between the first and the second frequency is used for controlling the frequency transposer. One or more entries in the covariance matrix are adjusted based on an uncertainty for the corresponding preliminary estimate. The approach is applicable to any type of data in any format and the invention is not limited to any type of data or any type of data format. The unit includes a film having formed thereon or therein a highly permeable material at least in an area having the spatial dimensions of the antenna structure of the transponder.