A method of separating components having a given negative or positive charge and contained in a sample is disclosed. According to the invention for transporting the rolls of the calender in the lateral direction from the calender to the roll store and vice versa, the roll-changing apparatus can be conveyed between calender and roll store, while the lifting carriage of the roll-changing apparatus is immovable in the lateral direction with respect to the vertical column. After storing the data, at least part of the stored data is retrieved and output by decoding the intra-device and inter-device ECCs, while using information related to one of the intra-device and inter-device ECCs in decoding the other of the intra-device and inter-device ECCs. The recommendation set may be presented as a greeting, notification, alert, HTML fragment, fax, voicemail, or automatic classification or routing of customer e-mail, personal e-mail, job postings, and offers for sale or exchange.