For quality control of a printing plate the knowledge of the entire dot transfer for
the whole gradation range is of great importance. It has to be analyzed how the
different dot sizes and number of dots between 0 % and 100 % are transferred geometrically
on the printing plate. This transfer characteristic is drawn in a transfer
curve. The horizontal axis lists the reference values in % and the vertical axis the
measured dot percentage values. If the measurement values are on a 45° line, it
means that it is a linear 1:1 dot transfer.