Method and arrangement for setting the dot size of printed images generated with the aid of an electrographic printing or copying system

A system for setting dot size of toner images generated with aid of an electrographic printing or copying system, comprising:

• an image generation unit that generates at least one latent raster image that is not to be inked with toner particles in at least one region, said image generation unit inking said at least one latent raster image with toner particles in other regions to form a first toner image, and said image generation unit also generates at least one additional latent raster image that is to be inked with toner particles over its entire surface, and said image generation unit inking said additional latent raster image with toner particles to form an additional toner image;
• a sensor unit that determines a first toner particle quantity used to ink the first toner image and a second toner particle quantity used to ink the additional toner image;
• a control unit that determines a ratio of the first toner particle quantity and the second toner particle quantity, the determined ratio being used as a measure representing a real value for an areal coverage of the first toner image, and the control unit comparing the real value with a desired value;
• and
• the control unit setting a strength of an electrical field to transfer toner particles to said regions of the at least one latent raster image that are to be inked depending on a value of the comparison.