Patent ID: 7796281

Claim:
An image forming system comprising: a terminal; a printing device that is communicable with the terminal and performs a print operation when print data is transmitted from the terminal, the print data including a text portion to be printed; wherein the terminal includes a first determination unit that determines whether or not to execute a reprint-enabling designation based on whether the print data includes a reprint-enabled specification set by a user, wherein the printing device includes: a memory; an acquiring unit that acquires information about the print data, the information acquired by the acquiring unit being at least one of source information about the terminal that has sent the print data to the printing device, user information about a user who has prepared the print data, and data information about a data type of the print data; a second determination unit that: determines whether or not to execute the reprint-enabling designation based on the information acquired by the acquiring unit so as to store the print data in the memory as reprint-enabled data, if the first determination unit determines that the print data does not include the user set reprint-enable specification, and determines to execute the reprint-enabling designation so as to store the print data in the memory as the reprint-enabled data, if the first determination unit determines that the print data includes the user set reprint-enabled specification; a memory control unit that controls the memory to store the print data as the reprint-enabled data when the second determination unit has determined to execute the reprint-enabling designation; a reprint instruction device that instructs the printing device to perform a reprint operation based on the print data stored in the memory; a search unit that searches the text portion so as to determine whether or not a specific character string is present in the text portion to be printed and contained in the print data; and a canceling unit that cancels the reprint-enabling designation executed by the second determination unit, wherein when the search unit finds that the specific character string is present in the text portion, the canceling unit cancels the reprint-enabling designation despite the determination of the second determination unit to execute the reprint-enabling designation, whereas when the search unit finds that the specific character string is not present in the text portion, the second determination unit determines to execute the reprint-enabling designation.