The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM electronic card. The host device divides the data into blocks, each of which is of a size smaller than the capacity of a memory device equipped in said IC card readerwriter to transmit said data to IC card readerwriter, and attaches a code to each of said data blocks to indicate whether or not the block is the final data block. I Each of the inner compartments having an inlet and an outlet port leading to unidirectional valves to allow fluid to be drawn into one of the compartments when the appropriate diaphragm moves outwardly and expelled from that compartment when the diaphragm moves inwardly. If each such other application is approved for network access, access to the network is permitted. With this construction, the durability of the rolling bearing to support the follower pulley 4 is secured while made compact.