Patent ID: 7970708

Claim:
A value information management system comprising: a non-transitory recording medium; a printer apparatus; and a value information management apparatus, wherein the non-transitory recording medium includes: a storage unit for securely storing electronic data representing value information; an instruction reception unit operable to receive an instruction to delete the electronic data; and a deletion unit operable to delete the electronic data when the instruction reception unit receives the deletion instruction, and wherein the printer apparatus includes: a reading unit operable to read the electronic data from the non-transitory recording medium; a printing unit operable to print the read electronic data; a detection unit operable to detect that the printing unit has completed the printing; and an instruction transmission unit operable to transmit the deletion instruction to the non-transitory recording medium when the detection unit detects that the printing unit has completed the printing, wherein the electronic data includes data identification information for identifying the electronic data, wherein the printer apparatus further includes: an identification-information transmission unit operable to, when the detection unit detects that the printing unit has completed the printing, extract the data identification information from the electronic data relating to the printing, and transmit the extracted data identification information to the value information management apparatus, and wherein the value information management apparatus includes: a state storage unit for storing one or more combinations of storage-data identification information and state information, each piece of state information indicating a printing state of electronic data identified by a corresponding piece of storage-data identification information; an identification-information obtaining unit operable to obtain the data identification information transmitted by the identification-information transmission unit of the printer apparatus; and a changing unit operable to change state information corresponding to the obtained data identification information stored in the state storage unit to indicate that a corresponding printing has been completed.