Patent ID: 8380090

Claim:
A printer comprising: a feed unit configured to hold a plurality of recording media; an image forming unit configured to execute double-side printing by printing a first side image on a first side of a first recording medium selected from the plurality of recording media fed from the feed unit and conveyed along a conveying passage and then printing a second side image on a second side of the first recording medium; an operation unit configured to accept an execution command of at least one of either continuation printing and reprinting if the first recording medium is in the conveying passage and has only the first side image already printed when double-side printing is stopped; a control unit configured to execute a first selection print processing of printing only the unprinted second side image, which corresponds to the first side image already printed on the first recording medium if the execution command of continuation printing is entered in the operation unit; and a notification unit; wherein the control unit is further configured to execute a second selection print processing of reprinting the first side image, which was previously printed on the first recording medium, on a second recording medium selected from the plurality of recording media and also the printing of the unprinted second side image on the second recording medium, if the execution command of reprinting is entered, and wherein the control unit is configured to control the notification unit to notify a user of the overlap order in the feed unit of at least two recording media, which are removed from the conveying passage if the at least two recording media are in the conveying passage and each has only the first side image already printed thereon, when double-side printing is stopped, wherein if the execution command for continuation printing is entered in the operation unit, the control unit is configured to print on an unprinted second side corresponding to each of the already printed first sides of each of the at least two recording media based on the overlap order indicated by the notification unit.