FIELD: printing industry.
SUBSTANCE: invention relates to the field of printing. Described system of sheets control intended for sheet printing machine for double-sided printing of such type comprises two printing cylinders intended to do simultaneous double-sided printing of sheets. At the same time specified system comprises at least one control device to produce images of one side of printed sheets. System of sheets control comprises the first and second transmission cylinders arranged between the first of specified two printing cylinders and chain system with grips provided in printing machine. At the same time printed sheets are moved serially from the first printing cylinder to the first transmission cylinder, to the second transmission cylinder and chain system with grips. Control device comprises linear shaper of image signals intended to produce image of one side of printed sheets by means of linear scanning, at the same time this linear shaper of image signals visually produces image of printed sheet, while printed sheet moves on the first or second transmission cylinder.
EFFECT: invention makes it possible to provide for efficient prevention of sheets smudging in process of control.
6 cl, 3 dwg
