Patent ID: 8261661
Filing Date: 2012-09-11
Classification: B41F

Abstract:
1. A newspaper printing press comprising: a plurality of printing units arranged spaced from each other in a printing tower of said newspaper printing press and usable for double-sided printing of a material web in offset printing; first and second cooperating printing couples in each of said plurality of printing units; at least first and second cylinders in each of said printing couples, said first and second cylinders including a forme cylinder and a blanket cylinder, said blanket cylinders of said first and second cooperating printing couples in each of said printing units contacting each other to accomplish said offset printing of said material web passing between said blanket cylinders of said cooperating printing couples of each of said printing units; means supporting at least one of said blanket cylinders of each of said first and second cooperating printing couples for movement with respect to the other of said blanket cylinders of each of said first and second cooperating printing couples; at least one power-driven actuator usable to move said at least one blanket cylinder with respect to said other of said blanket cylinders to vary a contact force existing between said first and second blanket cylinders; a control device usable to adjust said at least one power-driven actuator to vary said contact force between said at least one blanket cylinder and said other of said blanket cylinders in each said printing unit; and a plurality of default values stored in said control device, said plurality of stored default values being different from each other and each being representative of a different level of said contact force provided by said at least one power-driven actuator, each of said plurality of default values being based on a criterion relating to at least a property of the surface of the web of material to be printed, said plurality of default values each being usable to vary said contact force by operation of said at least one power-driven actuator.