Proof printing press

A proof printing press comprising:

• a blanket;
• segment plates;
• a plate cylinder rotatably supported and including, on an outer circumference thereof, a working surface;
• an intaglio printing plate mounted on the working surface of the plate cylinder;
• an impression cylinder rotatably supported to face the plate cylinder and including, on an outer circumference thereof, a working surface configured to hold a sheet;
• a collecting cylinder rotatably supported to face the plate cylinder and including, on an outer circumference thereof, a working surface on which the blanket is mounted;
• a plurality of chablon cylinders disposed along a circumferential direction of the collecting cylinder, rotatably supported to face the collecting cylinder, and including, on outer circumferences thereof, working surfaces on which the segment plates are mounted;
• a plurality of form rollers rotatably supported to face the chablon cylinders, respectively;
• a plurality of ink supplying means for supplying inks to the form rollers, respectively;
• and
• wiping means disposed to face the plate cylinder between a downstream side of a facing position, where the plate cylinder faces the collecting cylinder, in a rotation direction of the plate cylinder and an upstream side of a facing position, where the plate cylinder faces the impression cylinder, in the rotation direction of the plate cylinder, the wiping means removing ink on a surface of the intaglio printing plate of the plate cylinder, wherein
• the plate cylinder, being a multiple-size cylinder, configured to mount thereon a plurality of the intaglio printing plates aligned in the circumferential direction, while the number of the working surface is only one,
• each of the chablon cylinders is a single-size cylinder,
• each of the chablon cylinders has a diameter such that the chablon cylinder rotates a plurality of times, while the plate cylinder rotates once,
• the impression cylinder, the collecting cylinder, and the wiping means are positioned relative to the plate cylinder such that
• a length of the outer circumference of the plate cylinder between a facing position P1, where the plate cylinder faces the collecting cylinder, and a facing position P2, where the plate cylinder faces the wiping means, in a downstream side of the facing position P1 in a rotation direction of the plate cylinder, is longer than a length in a circumferential direction of the working surface of the plate cylinder, and
• a length of the outer circumference of the plate cylinder between the facing position P2 and a facing position P3, where the plate cylinder faces the impression cylinder, at a downstream side of the facing position 2 in the rotation direction of the plate cylinder, is longer than the length in the circumferential direction of the working surface of the plate cylinder, and
• a length in a circumferential direction of outer circumferential surfaces of the form rollers is equal to a length in a circumferential direction of the working surfaces of the chablon cylinders, and
• the proof printing press further comprising:
• a controller that sets
• rotation phases of the collecting cylinder and the chablon cylinders such that an end portion at a downstream side in a rotation direction of the working surface of the collecting cylinder and an end portion at a downstream side in a rotation direction of each of the working surfaces of the chablon cylinders rotate in synchronism and in contact with each other in accordance with rotations of the collecting cylinder and the chablon cylinders.