What should we do to solve the printer problem causes deep and shallow color streaks

1). The shade caused by ink:

1.The problem of ink is a relatively common phenomenon. If you are not using the original ink, this problem is more likely to occur.

There are two main reasons. One is the poor fusion of the ink. The inks of different colors are not fused after printing, and the color particles repel each other. When the color sequence is different, it is easy to cause color difference. This situation is more common in oil-based (solvent) inks. Oil-based inks are grinded powder. The powder itself is not liquid, it is aggregated together by solvent.

The second is the dryness of the ink. Because the color sequence is different, the ink has already begun to dry in the first printing, and it is not easy to merge during the second printing, and that also easy to cause color difference.

If the ink has poor fusion of different colors, it is recommended to replace the ink. If the ink dries quickly, you can lower the platform temperature and increase the environmental humidity to make the ink fluidity better.

2. The shade caused by the ink absorbability of the material:

If the printed material ink absorbability is poor , the ink will be gathered on the surface of the material and cannot penetrate into the material, and the ink cannot be completely fused. In this case, the material needs to be replaced.

3. Change the nozzle color sequence:

If changing the ink and materials can not solve the problem of deep and shallow color streaks, you can change the order of the print heads if it is possible. The color sequence can only be changed on the models with double heads or even numbers heads. According to the color order of YMCKKCMY, Then the color sequence of printing back and forth can be kept consistent.

2). The shade caused by mechanical precision:

Mechanical accuracy is a problem that cannot be ignored. Machines that do not meet the standard of mechanical accuracy will cause many printing problems.

There are many mechanical reasons that cause deep and shallow color streaks. Inaccurate stepping, inaccurate overprinting, and inaccurate color registration all can cause problems. No matter what kind of problem it is, the shade difference caused by it can be summed up to one problem, the problem of dropping place difference.

To solve this problem, the first step is to ensure the accuracy of the calibration parameters. If the calibration parameters are accurate, we must consider whether the mechanical accuracy is up to standard. For example, the accuracy of stepping, the flatness of the table, the stability of the carriage movement.

So how do we judge the two causes of deep and shallow color streaks? The shade caused by the color sequence is regular, and it must be appeared regularly. However, if it is caused by stepping and platen accuracy, and it is usually not regular, especially the shade caused by stepping, it may suddenly appear after a few passes.