In 2O3-ZnO 2D-structures were processed by ink jet printing and heating at temperature as low as 150°C with the aim for implementation in transparent flexible electronics. Such low temperatures would enable the use of polymeric substrates. The In-Zn-solution precursor, based on In-alkoxide and Zn-acetate in 2methoxyethanol, was originally designed for Chemical Solution Deposition of thin films. To adapt it for piezoelectric ink-jet printing, the viscosity and surface tension were adjusted by the addition of a more viscous 1,3-propanediol. The optimum values of 9.6 mPas and 34 mN/m were obtained for the ink consisting of 55 volume % of 1,3-propanediol. The printing parameters: the temperatures of the cartridge and the substrate, and the drop spacing were adjusted to allow patterning with a 40 µm resolution on SiO x /Si and glass substrates. The ink-jet printed 2D-structures heated at 150°C were organics-free, amorphous and upon heating at 450°C they crystallised without any preferential orientation, similarly as the spin-coated thin films, which were studied as reference.