FIELD: printing industry.
SUBSTANCE: declared devices of forming image comprise a unit for image forming for forming an image on each sheet, the output unit on which the sheet is thrown, a sorting unit made with the ability of sorting sheets thrown on the output unit, to the subsets, and a control unit made with the ability, when execution the mode of images forming on the first side of the paper, to throw sheets with the images on the first side, and to form images on the second side of thrown sheets placed manually in the unit of supply to form an image on the second side, to control a sorting unit for sorting thrown sheets after image formation on the first side in a subset such that the number of sheets in each subset does not exceed the maximum number of sheets stacked in a pile of the unit of supply. The claimed method includes forming the image on each sheet, sorting of sheets thrown on the output tray in the subsets, and the formation of the image on the second side of the thrown sheets placed manually in the supply unit to form an image on the second side, sorting control for sorting the thrown sheets after image formation on the first side in the subsets such that the number of sheets in each subset does not exceed the maximum number of sheets stacked in a pile in the supply unit.
EFFECT: implementation of devices and method of forming the image at the duplex print with the ability of sorting the printed pages by the unit of sorting control, in subsets, the number of pages in which does not exceed the maximum number of sheets stacked in a pile on the tray of supply.
14 cl, 14 dwg
