Patent ID: 7891294

Claim:
A printing system comprising: a lithographic plate information printing unit that prints lithographic plate information on a recording medium using a lithographic plate; a variable information printing unit that prints predetermined variable information on the recording medium on which the lithographic plate information is printed by the lithographic plate information printing unit; a first obtaining component that obtains first identification information provided in advance to the lithographic plate disposed in the lithographic plate information printing unit; a storage unit that stores second identification information associated with the variable information; a determination component that determines whether the lithographic plate information to be printed by the lithographic plate information printing unit and the variable information to be printed by the variable information printing unit are in a preset corresponding relationship, based on the first identification information obtained by the first obtaining component and the second identification information stored in the storage unit, wherein the determination component determines whether the lithographic plate information and the variable information are in the preset corresponding relationship after a print instruction is input to an operator panel to initiate printing; and a control component that, if determined that the lithographic plate information to be printed by the lithographic plate information printing unit and the variable information to be printed by the variable information printing unit are in the preset corresponding relationship, then, based on a result of determination by the determination component, controls so that the lithographic plate information to be printed by the lithographic plate information printing unit and the variable information to be printed by the variable information printing unit are printed in the preset corresponding relationship, and in a case that the determination component determines that the lithographic plate information to be printed by the lithographic plate information printing unit and the variable information to be printed by the variable information printing unit are not in the preset corresponding relationship, controls so that printing is not performed.