Clock generator for an imaging device

An imaging device for a printing machine, comprising a clock generator for generating a clock signal for the imaging device which serves for transferring image-setting information to a rotatable printing form, the clock generator comprising an input to which an actual value signal dependent upon an angular position of the printing form is applicable, and an output serving for outputting the clock signal, and further comprising a first comparator having a first input whereto the actual value signal is applicable as an analog signal, a second input to which an analog nominal value signal, respectively, representing a nominal value for the angular position of the printing form, is applicable, and an output serving for outputting the clock signal formed as a function of a result of a comparison between the analog actual value signal and the analog nominal value signal.

A printing machine, comprising a clock generator for generating a clock signal for an imaging device serving for transferring image-setting information to a rotatable printing form, the clock generator comprising an input to which an actual value signal dependent upon an angular position of the printing form is applicable, and an output serving for outputting the clock signal, and further comprising a first comparator having a first input whereto the actual value signal is applicable as an analog signal, a second input to which an analog nominal value signal, respectively, representing a nominal value for the angular position of the printing form, is applicable, and an output serving for outputting the clock signal formed as a function of a result of a comparison between the analog actual value signal and the analog nominal value signal.

A method for setting an image on a rotatable printing form, which comprises transferring image-setting information to the printing form as a function of a clock signal depending upon an angular position of the printing form, after determining the clock signal from an analog actual value signal dependent upon the angular position of the printing form, and an analog nominal value signal specifying the respective nominal value for the angular position of the printing form, via an analog comparison.