Patent ID: 7054027

Claim:
A dot gain calibration system comprising: a measurements database for including therein: measurements of dot gain pertaining to plate and press dot gain factors for various screen parameters; and combinations between said dot gain factors and said various screen parameters; a network for communicating data between said database, and at least one printing location; a dot gain measurement device at said printing location and operatively associated with said network, for measuring dot gain on a printed sheet, and able to use said network for communicating said measured dot gain; said system comprising a tone reproduction curve generator configured with an input to receive current printing parameters and required target values from said printing location and information from said database, therefrom to generate tone reproduction parameters to be used in printing to compensate for dot gain, said generator further comprising: a calculation unit connected to said input for receiving said current printing parameters, said database information and said required target parameters and calculating therefrom said tone reproduction curve; and an output for receiving said tone reproduction curve and sending said calculated tone reproduction curve to said printing location.