| 摘要 |
PROBLEM TO BE SOLVED: To provide a configuration capable of appropriately determining validity of license information in an image forming apparatus to which license information is input.SOLUTION: A validity determination unit determines validity of newly input license information. A sheet number addition unit adds, when the license information is determined to be valid, the printable remaining number of sheets by a predetermined number. The license information includes issuance date information indicating the date when the license information is issued. The validity determination unit determines validity of the license information on the basis of the issuance date information included in the input license information. |
