PURPOSE: To perform personal printing, on-demand printing, and easily change printing mode by providing a means for folding printed matters obtained by a plurality of printing means of different printing method for performing a predetermined printing without using a printing plate, a means for conveying the folded printed matters, and a means for binding the conveyed printed matters.

CONSTITUTION: A preprocessing unit 5 is equipped with four preprocessing devices 20-1 to 20-4. which converts a data format of an original digital printing data which is sent from a data creating device 2 through a communication circuit 3 and converts into the same mats of corresponding printing devices. A printing unit 6 comprises a first printer 21 of electrophotographic method using a powder toner capable of monochromatic printing, a second printer 22 of the same method using a liquid ink capable of color printing, a third printer 23 of the same method capable of the same printing, a fourth printer 24 of ink jet method having print heads H1 to H3 capable of monochromatic printing, and first, second, third folding machines 25-1 to 25-3 which are arranged at the back stages of the first, second, third printers 21 to 23 and fold the printed matters to be outputted from each printer.