How to perform color debugging of universal uv printer?

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In our customer base, some customers who use universal flatbed printers require very high color recovery, which involves a color test problem. Below, Shenzhen Yueda Color Printing will explain some basic common sense and let us know With common sense in this area, we look forward to providing you with the necessary assistance when using our printers!

        Usually, customers are accustomed to using the random ink printing of universal printers to identify the function of the ink. In fact, each brand of ink has its own characteristics. Take the three most popular brands of inkjet printers as an example. Although they all use the three primary colors of C (cyan), M (magenta), and Y (yellow), their printing functions are different, such as a certain brand of M ( Magenta) is slightly purplish red, while another brand’s M (magenta) is slightly rose red. Even if it is a printer of the same brand, the type of machine is different or the batch of ink is different, the effect of printing will be different.

        Neither the dye of the ink nor the manufacturer of the ink can manipulate this difference within the range that the human eye cannot detect. This is due to the difference in saturation. All inks cannot reach the theoretical saturation of 100%, because they want to reflect rich colors or print lighter colors; if each ink dot is 100% C, M, Y, or K, then it is required to use very sparse ink dots to imitate light colors, this printing effect will appear to be very coarse particles, so the saturation of C, M, Y can be as long as 80% or 85%. In order to make the printing level clearer and the colors more delicate and soft, the new HP, CANON, and EPSON six-color printers all use light red, light blue, or light yellow with lower saturation. It can be seen that the size of the saturation is not a certain value. It mainly depends on what kind of printing effect the ink manufacturer expects to achieve through the control of the saturation. The printing color is actually the reflection of the wavelength reflected by the object in our eyes. When the wavelength is between 600 and 570nm (nanometers), our city regards it as yellow. The color between 760 and 630nm is red, and when the wavelength is between 450 and 430nm We regard it as blue, and the subtle difference between them depends on the saturation of the three primary colors proposed by each manufacturer and is also subject to the perception of the human eye.

If you find that the printed colors are not ideal or the color cast is severe, there may be some reasons for the following:

1. Print settings:

That is, it has a lot to do with the saturation share selected by the operator when assigning colors, and other dpi and printing speed selections will also affect the printing effect. Secondly, it is closely related to the printing software used. For example, when printing the same picture with Photoshop 3.05 and CORELDRAW 6.0, the effects are very different and each has its own characteristics.

2. General printing paper is used:

The background color of the paper is too dark, the paper quality is too poor, and the ink enters the fiber of the paper or melts away, changing the color of the picture. It is recommended that you use special inkjet paper, which is coated with a coating based on titanium dioxide, which can make the ink spread more evenly.

3. The condition of the print head:

If the print settings are correct, the same paper is printed on the same screen, and their colors appear different, which is caused by the unstable inkjet volume of the print head. The print head will be damaged after repeated cleaning.

4. The defects of the ink cartridge:

If the ink chambers of the colorful ink cartridges are cross-colored, or there is air in a certain ink area, this ink will not be printed, and the picture will tend to be a certain color.

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