Patent ID: 6912957

Claim:
A printing press with a temperature control unit for controlling the temperature of a surface of a printing plate mounted on a plate cylinder by feeding air onto said plate cylinder; a plate-replacement space being provided in a certain region around said plate cylinder for replacement of a printing plate mounted on said plate cylinder with a new one introduced from the outside of the printing press; said temperature control unit being designed to be selectively shifted between a temperature control mode and a space opening mode; said temperature control mode enabling air to be fed through said plate-replacement space onto said plate cylinder; and said space opening mode making said plate-replacement space open to the outside of the printing press enabling the replacement of a printing plate; a lid capable of being opened and closed is provided over said plate-replacement space enabling a printing plate mounted on said plate cylinder to be replaced with a new one through said plate-replacement space during said lid is opened; said temperature control unit has an air outlet formed integral with an inner side of said lid; and said air outlet is designed to be selectively shifted between a temperature control position enabling air to be fed through said plate-replacement space onto said plate cylinder and a retracted position making said plate-replacement space open to the outside of the printing press upon opening and closing actions of said lid.