Key Technologies Of Wide-format Precision Inkjet Printing

Inkjet printer is a computer controlled by the optical, mechanical,electrical integration of large-scale printing output devices. The basicworkflow of sharp inkjet printer is the digital teletext input stage, RIPprocessing stage, the page dot matrix output stage and so on. RIP stage whichis the most important stage is largely related to the process and the quality ofthe output stage; also as the core of the system the whole system.The mainrole of RIP is to convert the digital image information received informationinto a computer matrix inkjet printer which can output information. In the RIPsoftware, PC accepting the input information in a digital image, whichcomprises tens of thousands of colors, but the output is generally applied inthe lattice information CMYK four-color printing process. It is now necessaryto perform this separation process, and making color synthesis, this process isthe separation processing. RIP software in the separation process, we usedtwo cubic Hermite interpolation curve and color saturation curve, the CMYKcolor information for color correction and saturation adjustments to furtherimprove the separation effect. This technology also helps to improve the RIPsoftware now, also to enhance the softness of the picture. Interpolationalgorithm is an important part of the RIP technology, linear interpolation andnon-linear interpolation of various methods and their advantages anddisadvantages, this paper proposes an effective hybrid differential algorithm,the test results improved. Large format color inkjet printer obtains a higheroutput density and faster speed, in which the printing method largely affectsthe print quality of the printer and requires a different approach. It will resultin the high luminance region dot print is too small, the distance between thepoint and the point is different. So if you are within a close distance manytimes printing, the texture may become very rough. This paper proposes amulti-pass printing solution. Print data organizes to achieve a finished link indifferent modules. It reads the data from the original image operator interfacecontrol program implemented in other parts in the dynamic link library DLL organization module, which is used in RIP software, making prints hasimproved to some extent.