FIELD: printing equipment. SUBSTANCE: device has sheet movement device and photo sensitive chambers for monitoring of printing quality. Design of sheet movement device provides possibility to transport sheets in one plane and provides possibility to implement operations of printing quality testing for each side of a sheet and transparency quality check in sequence in one run. Device for testing each side of a sheet is designed as two photo sensitive chambers, which are located on both sides of plane in positions which are displaced with respect to one another. Sheet movement devices are designed to leave open hole on side of each photo sensitive chamber. Third photo sensitive chamber provides monitoring of sheet quality with respect to their transparency. EFFECT: increased functional capabilities, practical implementation of quality control, decreased size of device. 7 cl, 4 dwg
