In this paper, we show that Inkjet Printing can be successfully applied to external-cavityvertically-emitting thin-film organic lasers, and can be used to generate a diffraction-limitedoutput beam with an output energy as high as 33.6 µJ with a slope efficiency S of 34%. Laseremission shows to be continuously tunable from 570 to 670 nm using an intracavity polymerbased Fabry-Perot etalon. High-optical quality films with several µm thicknesses are realizedthanks to ink-jet printing. We introduce a new optical material where EMD6415 commercial inkconstitutes the optical host matrix and exhibits a refractive index of 1.5 and an absorptioncoefficient of 0.66 cm-1 at 550-680 nm. Standard laser dyes like Pyromethene 597 and Rhodamine640 are incorporated in solution to the EMD6415 ink. Such large size “printed pixels” of 50 mm2present uniform and flat surfaces, with roughness measured as low as 1.5 nm in different locationsof a 50µm x 50µm AFM scan.Finally, as the gain capsules fabricated by Inkjet printing are simple and do not incorporate anytuning or cavity element, they are simple to make, have a negligible fabrication cost and can beused as fully disposable items. This works opens the way towards the fabrication of really low-costtunable visible lasers with an affordable technology that has the potential to be widelydisseminated
