Patent ID: 7884972

Claim:
An image processing apparatus calculating a charged amount in accordance with an amount of data storage, comprising: a data storage unit storing image data; a communication unit communicating with a storage device different from said data storage unit; a stored data designation unit designating image data to be stored in said data storage unit; a first information storage unit storing information for identifying designated data which is image data designated by said stored data designation unit; a second information storage unit storing said information for identifying each said designated data in association with a data amount of the designated data and a storage location of the designated data; a storage control unit obtaining information for specifying the data amount of the designated data from said data storage unit and storing that information in said second information storage unit if said designated data is stored in said data storage unit, and obtaining information for specifying the data amount of the designated data from said storage device and storing that information in said second information storage unit if the storage location of said designated data is said storage device; a first calculation unit calculating a virtual used capacity based on the data amount of all said designated data of which data amount has been stored in said second information storage unit; and a second calculation unit calculating a charged amount for usage of said data storage unit based on the virtual used capacity calculated by said calculation unit.