Abstract: A method of reissuing digital tokens in an open system meter includes the steps of calculating a digital token using the predetermined postal information including addressee information, postage amount and piece count; debiting postal funds by the postage amount; issuing the digital token for generation of an indicia; storing the digital token and the predetermined postal information as part of a transaction record in a transaction record file indexed according to addressee information; determining that an indicia generated from the digital token has not been successfully printed on a mailpiece for a particular addressee; and reissuing the digital token from the transaction record in the transaction file to generate the indicia for another attempt to print the indicia on the mailpiece.

Abstract: An effective electronic settlement system in which the number of checks is small. The electronic settlement system includes a data storage device such as an IC card in which value information is stored, a client device provided with an information input/output function to the data storage device, a store device for providing commodities or services, a settlement management device for managing settlement between the data storage device and the store device, and a communication system for connecting the client device, the store device, and the settlement management device so as to enable bidirectional communication.