Patent ID: 8090284

Claim:
An image forming apparatus, comprising: a printing unit that prints on one side and/or another side of a sheet of paper; a job receiving unit that receives a job instruction to perform single-sided printing and/or a job instruction to perform double-sided printing; a high-speed double-sided printing control unit that performs a double-sided printing process on two or more sheets of paper in parallel by performing printing on the one side of one sheet of paper and printing on the another side of the one sheet of paper between which printing on the one side and/or the another side of another sheet of paper is performed; and a mixed printing control unit that performs, in a situation where the job instruction to perform the single-sided printing and the job instruction to perform the double-sided printing coexist in a plurality of jobs received by the job receiving unit, the double-sided printing process with a blank page set to be printed on one of the one side and the another side of the sheet of paper when printing corresponding to the job instruction to perform single-sided printing.