| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an image forming apparatus for printing additional information to the printing data of a third party in back-sheet printing, without requiring a mechanism for automatically turning over printing paper or a complex device, such as, a sensor for determining whether a printing surface is a printed side or a side on which printing is yet to be made. <P>SOLUTION: For the case where a job history, including the number of printing of a printing job in which one-side printing is made by a printing execution part 20 is stored in a printing job management part 17, the one-side printing is executed in back-sheet printing; and a user stores a printing result in a tray again for printing additional information to the printed side which is printed on the back side of the printing surface of one's printing job. When a printing job of the one-side printing executed first is selected from the job history displayed in a display/operating part 16, additional information is printed to the printed side of the printing result stored in the tray for the number of the printing jobs. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
