Patent ID: 7719710

Claim:
An image forming system comprising: image forming means that, in accordance with an image forming instruction, forms an image relating to subject data on a recording medium provided thereon with an RFID tag that stores identification information specific to the recording medium; detecting means that communicates with the RFID tag of the recording medium by radio frequency communication and reads the identification information from the RFID tag of the recording medium; database means that, in accordance with the image forming instruction, obtains the identification information read by said detecting means from the RFID tag of the recording medium and forms a database of the subject data along with the obtained identification information, wherein, when the image relating to the subject data is formed on a first recording medium provided thereon with an RFID tag by said image forming means in accordance with an image forming instruction, said database means obtains first identification information read by said detecting means from the RFID tag of the first recording medium and stores the first identification information and the subject data in association with each other in the database, and when the image relating to the subject data is formed on a second recording medium provided thereon with an RFID tag by said image forming means in accordance an the image forming instruction, said database means obtains second identification information read by said detecting means from the RFID tag of the second recording medium and stores the second identification information in association with the subject data in the database; retrieving means that detects the subject data from the database corresponding to the identification information of the recording medium read by said detecting means, at a timing later than when the image relating to the subject data is formed on the recording medium; and control means that controls said image forming means to form an image relating to the subject data detected by said retrieving means on a recording medium provided thereon with an RFID tag, said detecting means to read identification information from the RFID tag, and said database means to store the identification information in the database.