Abstract: The present invention provides a painting holder, a painting holder feeding unit, a printer unit having the holder and feeding unit, and an art painting apparatus with such a printer unit for automatic vending machines. The painting holder consists of a housing connected to a bracket of a feeding unit, a spring-biased finger base movably set within the housing so as to be elastically biased upward in the housing, a locking member hinged to the right-hand sidewall of the housing, and normally biased in a direction by a first torsion coil spring, and a finger cover hinged to the left-hand sidewall of the housing, and biased in a direction by a second torsion coil spring. The finger cover also has a painting opening at a predetermined position thereof, and is locked by the locking member. The art painting apparatus has a high resolution of not less than 1,200 dpi, thus accomplishing a highly active and clear painting effect.