Abstract: A printing machine includes: a paper feed unit configured to feed a sheet of paper; a suction transfer unit configured to transfer the sheet of paper fed by the paper feed unit in a transfer direction, with the sheet of paper being attached by suction onto a transfer surface; a transfer and paper discharge unit configured to receive the sheet of paper from the suction transfer unit to transfer and discharge the sheet of paper; and a controller configured to control a suction force of the suction transfer unit in accordance with a paper type. When the controller changes the suction force of the suction transfer unit between successive sheets of paper, the controller is configured prior to a discharge of a precedent sheet of paper to change the suction force of the suction transfer unit and drive the paper feed unit to feed a subsequent sheet of paper.

Abstract: A printing machine includes: a paper feed unit configured to feed a sheet of paper; a suction transfer unit configured to transfer the sheet of paper fed by the paper feed unit in a transfer direction, with the sheet of paper being attached by suction onto a transfer surface; a transfer and paper discharge unit configured to receive the sheet of paper from the suction transfer unit to transfer and discharge the sheet of paper; and a controller configured to control a suction force of the suction transfer unit in accordance with a paper type. When the controller changes the suction force of the suction transfer unit between successive sheets of paper, the controller is configured prior to a discharge of a precedent sheet of paper to change the suction force of the suction transfer unit and drive the paper feed unit to feed a subsequent sheet of paper.