Small printing machine

A printing machine comprising a table for guiding paper to be printed, means defining a slot extending transversely of the table, a stick of coloured greasy chalk disposed parallel to and located in said slot, a rotary drum located above said slot and rotatable about an axis parallel to said slot and having on a part of an outer surface thereof ribs which are disposed on a first imaginary geometric cylinder coaxial with said drum and are for receiving and hooking printing forms, printing forms which are in hooked relation to said ribs and have reliefs, the reliefs defining outer surfaces which are disposed on a second imaginary geometric cylinder which is coaxial with said drum and has a radius which exceeds the radius of said first imaginary geometric cylinder, and means for biasing the stick of chalk and said outer surfaces of said printing forms against one another whereby, upon rotation of the drum with a sheet of paper between the drum and the stick of chalk, said outer surfaces of the reliefs apply the paper against the stick of chalk which prints the shape of the outer surfaces of the reliefs on a side of the paper remote from the drum as the paper is displaced transversely across the stick of chalk by the rotation of the outer surfaces of the reliefs about said axis.