People who have lost sight also lose the simplest ability of acquiring information about the surrounding world. Newspapers become unreadable, and writing a letter to a friend has to be done by a third person. Nevertheless, with the development of modern technologies, the number of new devices, which support the communication of blind people, is increasing (also microprocessor). Yet still Luis Braille’s system, which uses point-convex signs, is most commonly used. A new problem has arisen, namely modern convex printing technology is not always in proper relation to the quality of the printouts. There are no quality standards which precisely describe the parameters which have the biggest influence on the quality of convex copies, nor is it established how these parameters should be measured and which values should be allowed.