Patent ID: 7751074

Claim:
A system which includes at least a controller having a memory unit adapted to store data of a print job comprising a plurality of pages, a first printer, a second printer, and a sheet stacking device adapted to stack sheets discharged from the first printer and to stack sheets discharged from the second printer, wherein the controller comprises: a distribution unit adapted to distribute, in the print job which includes images of a plurality of types stored in the memory unit, the pages of the images of a first type to the first printer and the pages of the images of a second type to the second printer; and an instruction unit adapted to instruct, to the first printer and to the second printer, a discharge timing so that an order of the plurality of pages after discharge coincides with an order before the plurality of pages are distributed by the distribution unit, wherein the sheets are printed by the first printer and stacked to the sheet stacking device by being passed through a first carrying path and not being passed through a second carrying path, and the sheets are printed by the second printer and stacked to the sheet stacking device by being passed through the second carrying path and not being passed through the first carrying path, and wherein the first printer and the second printer are adapted to print the pages distributed by the distribution unit and to discharge the printed sheets to the sheet stacking device, according to the discharge timing instructed by the instruction unit.