the top side 3 of the printing plate 2 and thereafter backfilled this itself is well known and need not be explained here further in a ceiling partition 6 of the container 1 arranged at a distance to each other are two guide mechanisms 7 and 8 in each of which an eccentric 9 is positioned rotatingly vertical rods 11 12 grip each eccentric 9 which can each be turned independently using a drive 10 a joint 13 is provided between each rod 11 12 and the container 1 the rods 11 12 are preferably piston rods which simultaneously exercise pressure on the container 1 such a drive is disclosed in swiss patent application no 34 81 94 fig1 shows three positions a b and c which the container 1 assumes during the coloring of the printing plate during the coloring the relative movement between the container 1 and the printing plate is substantial in the embodiment shown here the container 1 is held tightly and the printing plate moved back and forth in a first relative movement also imaginable however is an embodiment in which the printing plate is held tightly and the container 1 is moved back and forth in fig1 the three positions a b and c.