Patent ID: 6979070

Claim:
A printing apparatus comprising: a storage unit configured to store print sheets including a tab paper sheet; a print unit configured to print predetermined data on the print sheet; a check unit configured to check if the print process of said print unit is that on the tab paper sheet; a notification unit configured to output a message to a user when said check unit determines the print process on the tab paper sheet, and said print unit prints on a first face of the tab paper sheet; a detection unit configured to detect re-storage of the tab paper sheet, the first face of which has been printed, in said storage unit; and an instruction reception unit configured to receive a print instruction of a second face of the tab paper sheet from the user, wherein said print unit prints on the second face of the tab paper sheet in response to detection of re-storage of the tab paper sheet and the print instruction of the second face of the tab paper sheet.