In the past, a number of machines were built to create drawings mechanically. After early attempts in the 19th century, Jean Tinguely (1925–1991, see [8]) created a number of sophisticated machines that were able to create complex stroke patterns. In contemporary art, Harold Cohens Aaron (see [9]) is the most famous robot painting project, ongoing for many decades now. However, the artist did not focus on faithfully representing image content but to realize abstract computer-generated artworks. In the early times he built and used a sophisticated painting machine, but recently he moved to ordinary printers.