Patent ID: 6330857
Filing Date: 2001-12-18
Classification: B41F,B41M,B41P

Abstract:
A printing machine comprising:a printing form including a mesh having a first side, a second side facing a receiving medium and a plurality of cells which extend through the mesh and open at the first and second sides, each cell for receiving ink;an ink applicator for applying ink into the cells of the printing form; andan ink ejecting apparatus at the first side of the mesh for transferring ink from the cells of the printing form onto the receiving medium, the ink ejecting apparatus includinga quantum generator for generating a laser light beam pulse,a focusing device for focusing a laser light beam generated by the quantum generator to a selected size,a deflector for deflecting a focused laser light beam over the first side of the mesh at the cells;the quantum generator being operable for generating a laser light beam pulse having a duration which renders the generated light beam pulse capable of being absorbed by a small portion of a volume of ink contained in one of the cells to induce boiling of the small portion of the ink in the cell for creating a force which acts on the remainder of the ink in the cell to eject the remainder of ink from the cell and toward the receiving medium under the light hydraulic effect.