Patent ID: 9555994
Date: 2017-01-31
CPC Classifications: B65H,G03G

Claim:
1. An image forming apparatus comprising: an image forming unit configured to form an image on a paper; a paper feed unit configured to feed a paper from a paper supplier to the image forming unit; a double-sided paper feed path configured to hold and convey a paper to form an image on a side that is opposite to a side of the paper on which an image has been formed; a re-feeding unit configured to re-feed the paper held by the double-sided paper feed path to the image forming unit; a control unit configured to control feeding of a paper to the image forming unit by the paper feed unit, and re-feeding of a paper to the image forming unit by the re-feeding unit; a setting unit configured to, in a case where a paper for which a print setting is double-sided printing and a paper for which a print setting is single-sided printing are mixed in a print job, change the print setting of the paper that is the single-sided printing to a forcible double-sided printing that uses the double-sided paper feed path; and a changing unit configured to, if there is no paper held in the double-sided paper feed path and the print setting of a paper to be fed is the forcible double-sided printing, change the print setting of the paper to be fed into single-sided printing.