Abstract: A storage system for the storage of setting values for adjusting devices on printing machines including a portable memory unit for the exchange of data with a device for communication, preferably disposed on the printing machine. A housing of the memory unit contains electrically operated, solid-state storage elements that are coupled to an electronic control unit for making logic decisions. The memory unit contains at least one data input in the form of at least one contactlessly working sensor and a data output in the form of at least one contactlessly scannable output element, both optically coupled to corresponding optical elements of the device for communication through viewing windows during data exchange. For the display and input of storage information and values, a display and a manual input device are located on the memory housing.