1. Fuzz, caused by frequent cleaning of the print head.
Fuzz (What are the causes of ink fuzz caused by digital printing? Click on the text to view), ink breakage and other faults need to clean the print head frequently, which will cause color differences and discontinuous effects on the screen. Because the print head has different results before and after cleaning, we recommend that you check the working status of the digital printing machine before digital printing to ensure that it is correct before production. Second, you need to buy quality when selecting ink Excellent, guaranteed quality ink.
 
2. The quality of the media.
Inferior media have poor ink absorption (unevenness), which leads to uneven ink staining, and the image is prone to chromatic aberration.
 
3. The ink supply system is unstable.
The level of the ink cartridge liquid level greatly affects the ink supply power of the print head and directly affects the printing effect. When the liquid level is high, the color is darker than when the liquid level is low, which causes the color difference of the screen.
 
4. Other processing was performed during printing.
Other processing may be changing the media (largely spliced picture) during printing, replacing ink or refilling different types of inks, or the pause time is too long or the frequency of pauses is too frequent. The above operations may cause discontinuous pictures and chromatic aberration in the image output.
In order to avoid the above situation, we need to check whether the media and ink are sufficient before printing. If problems are found, we need to replenish them in time. It should be noted that for digital printing machines equipped with heating and drying devices, the pause time is too long. The color difference of several PASS images printed before and after the pause is very different.
 
The daily production of Fedar FD1900/5193/6194/6196 digital printing requires a lot of attention, especially the ink used, attention to quality, and standardized operation.