Patent ID: 6684778
Filing Date: 2004-02-03
Classification: B41F

Abstract:
A printing press with a sheet-turning-over-mechanism for turning over a printing sheet, enabling the printing press to be selectively operable in a one-sided printing mode and a double-sided printing mode through a mode switching operation, comprising:a controller including a computing device with a CPU for performing said mode switching operation according to a program executable by said computing device and a memory configured such that, when a failure stops any one of steps of a mode switching operation for switching the printing press from the one-sided printing mode to the double-sided printing mode or vice versa, said memory stores the information representative of a state of the mode switching operation at the moment of the stop due to the failure, and when a normal operable state is restored from the failure, said computing device resumes the mode switching operation from a step of the mode switching operation indicated by the operational state stored in said memory.