FIELD: printing.
SUBSTANCE: invention relates to the field of printing and can be used for quality control of printed sheets. The printing machine comprises a printing unit, a receiving unit, a conveyor system and a control system. The conveyor system comprises spaced gripping bars. The control system has an optical quality control device. The control device comprises a linear camera. The linear camera scans the sheets while moving them by the conveyor system. The control system additionally comprises a vacuum roller. The roller contacts the second side of the printed sheets.
EFFECT: possibility is provided to change the direction of motion of the sheet until the termination of full scanning.
15 cl, 13 dwg
