Patent ID: 7673980
Filing Date: 2010-03-09
Classification: B41J

Abstract:
1. An ink-jet recording device comprising: a multi-nozzle jet head configured to fire a treatment liquid on a recording medium before ink firing, for avoiding a pixel of the ink formed on the recording medium from spreading or running much on the recording medium; a multi-nozzle recording head having a plurality of nozzles, through which ink is fired on the recording medium after the treatment liquid is fired by said multi-nozzle jet head; a recording medium drying means for drying a printed surface of the recording medium by applying heated air flow onto the printed surface without contacting the printed surface of the recording medium, wherein the heated air flow is applied to the ink on the recording medium in a manner to avoid causing scattering of the wet ink and thus avoid image degradation, wherein said drying means extends along a direction along which the nozzles of said recording head are arranged, said drying means has a drying range, a width of said drying range being wider than a width of a printing range of the recording medium, and said drying means is provided at a downstream position of a conveyance path of the recording medium, said downstream position being subsequent to the multi-nozzle recording head, wherein said multi-nozzle recording head jets ink with a frequency in a range from at least one kilohertz to forty kilohertz per nozzle on demand, wherein the plurality of nozzles of said multi-nozzle recording head are arranged in a density in a range between 400 and 3200 dpi and are arranged along a direction of the printing width of the recording medium, wherein a cross-sectional area of the nozzle is more than 10 μm wherein said recording head is stationary during printing while the recording medium is conveyed to a position at which a stationary nozzle surface faces said recording medium.