Patent ID: 7975610
Filing Date: 2011-07-12
Classification: B41F,B41P

Abstract:
1. A printing unit comprising a first printing group including at least a first printing group plate cylinder having a first axis of rotation; a second printing including at least a second printing group plate cylinder having a second axis of rotation, said first printing group plate cylinder and said second printing group plate cylinder being arranged side by side in a horizontal direction and with a horizontal line passing through said first and second axes of rotation; an inking unit including an ink forme roller for each said first and second printing group, each said ink forme roller being situated to cooperate directly with said printing group plate cylinder of each said printing group; an additional cylinder in direct contact with each said plate cylinder of each of said at least first and second printing groups; an impression cylinder cooperating with said additional cylinders of said first and second printing groups and configured as a satellite cylinder; a first plate changing device for said first printing group and having a first front section facing said first plate cylinder; a second plate changing device for said second printing group and having a second front section facing said second plate cylinder, one of said first and second front section being situated above said horizontal line and the other of said first and second front sections being situated below said horizontal line; and an infeed plane and a removal plane for each of said first and second plate changing devices, wherein said infeed plane is above said removal plane for one of said first and second plate changing devices and said infeed plane is below said removal plane for the other of said first and second plate changing devices.