Several factors that affect the quality of inkjet printing

First, light in the natural world, all the colors are formed by the combination of different wavelengths of light. When light passes through the prism, the spectra produced by the various wavelengths of light can be seen. "Spectral" can be said to be a natural phenomenon of continuous color mixing, but we can use it to define the color change and further manage the desired color. On television, movies, computers, and screens, we are dealing with color changes using the "add color method." It contains the main three colors: red, green, and blue (Red, Green, Blue), which is also known as the three primary colors (R, G, B). All colors can be overlapped by these 3 different colors of light. But for prints, the human eye uses reflected light to determine the difference in color. When you see a red paper, because the light is shining on the paper, the red light in the spectrum reflects, so you know it is red. of. Therefore, in the printed matter, the color must be defined using the "subtractive method", which is the so-called three-color model of C, M, Y (cyan Cyan, magenta Magenta, yellow Yellow). For colored light, red, green and blue can be mixed white light, but when using watercolor or paint to paint, they will find that the color will be deeper and deeper, red, green and blue are not white.
Therefore, using the three complementary colors of C, M, and Y to create a variety of different colors. However, since the addition of C, M, and Y colors does not mix pure black, the color printer then separates the black to form a complete subtractive color model for C, M, Y, and K. Perfect print quality. The color print quality must be able to truly represent colors; the "additive principle" and "subtraction principle" are the two major systems in color science. How to accurately convert the light source system's color (R, G, B) to ink jet or The printed system (C, M, Y, K) is a very complex science, but only by accurately converting colors can we achieve real high-quality results. Therefore, accurate color conversion technology is a key factor affecting print quality.
Second, the resolution For black and white laser printers, the resolution may be the key to print quality, but for color printers, color gamut and resolution are equally important. The DPI resolution is written by DotPerInch, which means that the number of dots can be printed in one inch width. In the case of black and white laser printers, the higher the resolution, the finer the resolution and the color scale points are, and the better the print quality is. But for color printers, the resolution refers to how many ink dots can be printed in a width of 1 inch, regardless of whether the ink dots overlap.
Third, the level of an output image (image) is composed of many points (or pixel pixel), and each point is a different color and brightness to form this image. For example, on a television or computer monitor, beautiful picture quality can be presented, making our eyes feel very realistic. However, the resolution on a computer monitor is 640×480 dpi or 1600×1200 dpi, and the resolution of the television is even lower. Since the color is analog output, the voltage is used to control the color so that each point can be displayed in a continuous color gradation (full tone). So even if the resolution is lower than the printer, it still feels very natural and realistic, so the color scale is also very important. Therefore, some printers use six colors to print colors, adding the original C, M, Y, and K colors to light blue and light red. The advantage of this is that when color mixing is no longer just through The original C, M, Y, and K colors are colored, but the color quality is made closer to the continuous color gradation through 6 colors. As the number of primaries on the graph increases, the image becomes more realistic.
Four, the printing head control ink dot is sprayed onto the paper through the nozzle, in general, the nozzle and the printing head are together, so the technology of the printing head itself is very important, and the left and right printing head is the technology of ink jet. The precision of printer cantilever gears and transmission belts.
5. Ink ink can be divided into dye type (DyeType) and pigment type (Pigment Type). Dye type ink has better saturation but poor water resistance; while pigment ink has less saturation than dye type but water resistance. good. At present, inkjet inks are mostly dye-based, such as Epson and Canon's C, M, Y, and K all-color dye inks. The ink of the inkjet printer must have enough surface tension to prevent the ink from spattering when ejected. In addition, the ink must be fast-drying to prevent haziness on the paper. Therefore, the ink itself is also one of the factors that affect the print quality.
6. Printed Materials All prints to be printed have an important relationship with the used paper. Just as we go to the photo room to wash the photos, we can obtain different results on different photo papers. In the case of inkjet printers, because the paper fibers used in each paper are different, the ability to absorb ink is also different, and of course, the performance is different. Glossy photo quality is of course best in the form of photo paper; ordinary documents can be plain paper or inkjet special paper.