Abstract: For the transport of a substrate from a cassette to a back surface cleaning processing unit in a cleaning processing block, a transfer robot rotates the substrate through 90 degrees from a horizontal attitude in which the front surface of the substrate is positioned to face upward into a standing attitude while transporting the substrate out of a cassette to a substrate passing part, and passes the substrate in the standing attitude to the substrate passing part. The substrate passing part holds the substrate in the standing attitude. A main transport robot receives the substrate held in the standing attitude. The main transport robot rotates the substrate through 90 degrees from the standing attitude into a horizontal attitude in which the back surface of the substrate is positioned to face upward while transporting the substrate from the substrate passing part to the back surface cleaning processing unit.

Abstract: For the transport of a substrate from a cassette to a back surface cleaning processing unit in a cleaning processing block, a transfer robot rotates the substrate through 90 degrees from a horizontal attitude in which the front surface of the substrate is positioned to face upward into a standing attitude while transporting the substrate out of a cassette to a substrate passing part, and passes the substrate in the standing attitude to the substrate passing part. The substrate passing part holds the substrate in the standing attitude. A main transport robot receives the substrate held in the standing attitude. The main transport robot rotates the substrate through 90 degrees from the standing attitude into a horizontal attitude in which the back surface of the substrate is positioned to face upward while transporting the substrate from the substrate passing part to the back surface cleaning processing unit.

Abstract: Image data of Y, M, C and K color separations received from a layout system through an interface circuit are applied through a color computation circuit to a chemical element adjusting LUT (lookup table). The chemical element adjusting LUT identifies coloring densities based on the image data of the color separations and chemical conditions set through a setter for forming cells. The coloring density of K separation is separated into three chromatic color components which are added to the coloring densities of the three chromatic color separations, taking superposition with the coloring densities of the three chromatic color separations into account. A dot generator determines cell portions and gravure screen wall portions synchronously with the coloring density identifying process. AOMs modulate light beams based on the voltages applied thereto, to expose halftone images. A color proof is obtained for prints to be made with printing cylinders prepared by the conventional gravure system.