Color constancy is dependent on changes in the structure of printing substrates which it is subject. After manufacture graphic product is exposed to weather influences such as various sources of light and weather conditions. This ultimately results in physical and chemical changes in printed colors and printing substrates which are also called age-prints. In technical editing such changes are considerate if there was attached an old print as example and the definition of the level quality of printed products. The aim of this study was to determine how aging affects the test print on its measured colorimetric values. Conducted research will indicate the importance of different parameters imprint in the process of work orders to produce again the same graphical product. Compared to the old and new test print will be printed measurable deviations due to the physical and chemical changes in color and printing substrates. For research will be prepared prints which are printed on different printing substrates and the following printing techniques: offset printing, ink-jet printer and laser printer. The samples will be subjected to an accelerated aging process in the device under a defined source of light and temperature. After the accelerated aging process on the prints will measure the density of staining and colorimetric values and will be on the same basis to determine any change occurred in the colors printed with different printing techniques.