Patent ID: 6655277
Filing Date: 2003-12-02
Classification: B41F

Abstract:
A rotary printing machine, comprising:a printing unit including a plurality of printing-unit cylinders; a functional unit associated with a function needed to operate the printing unit, a linear guide device on which said functional unit is fitted for movement in a linear direction with respect to one printing-unit cylinder of said plurality of printing-unit cylinders; a drive device for moving said functional unit on said linear guide device such that said functional unit and said one printing-unit cylinder are relatively movable into and out of connection with one another; a sensor arrangement associated with each said functional unit for generating a position-dependent signal; and a positioning device associated with said functional unit and including a controller, said controller controlling said drive device responsive to said position-dependent signal, wherein said sensor arrangement includes a sensor operative for sensing a functional unit travel distance when said drive device is activated and outputting a sensed travel distance signal to said controller, and another sensor for sensing a travel encounter of said functional unit with said one printing-unit cylinder and outputting an encounter signal to said controller.