Patent ID: 7637209

Claim:
A method of changing the mounting condition of a printing master on a printing master cylinder, the printing master including a leading edge and a trailing edge, the printing master cylinder including a leading receiving element for receiving and releasing the leading edge and a trailing receiving element for receiving and releasing the trailing edge, the method comprising: mounting a printing master including the successive steps of: rotating the printing master cylinder at a first mounting speed; reducing the speed of the printing master cylinder from the first mounting speed to a second mounting speed at a leading reducing speed phase position of the printing master cylinder; closing the leading receiving element in a leading closing phase position of the printing master cylinder to hold the leading edge of the printing master, the printing master cylinder being rotated with the second mounting speed during closing of the leading receiving element; increasing the speed of the printing master cylinder from the second mounting speed during an acceleration phase position; reducing the speed of the printing master cylinder to a third mounting speed at a trailing reducing speed phase position; and closing the trailing receiving element at a trailing closing phase position to hold the trailing edge of the printing master while the printing master cylinder is rotated with the third mounting speed: dismounting the printing master including the successive steps of: rotating the printing master cylinder at a first dismounting speed; reducing the speed of the printing master cylinder from the first dismounting speed to a second dismounting speed at a dismount trailing reducing speed phase position of the printing master cylinder; opening the trailing receiving element at a trailing opening phase position of the printing master cylinder to release the trailing edge of the printing master, the printing master cylinder being rotated with the second dismounting speed during opening of the trailing receiving element; and increasing the speed of the printing master cylinder from the second dismounting speed during a dismount acceleration phase position.