How to judge the performance of the printer


Printers are products that are widely used in our office and printing industries. The performance of different printers is not the same. The performance of printers is related to several factors, such as resolution, color harmony ability and so on. Now let's introduce how to judge the performance of the printer in detail.


How to judge the performance of the printer




DPI is an important standard for the industry to measure print quality. It itself represents the number of dots an inkjet printer can print in the range of an inch. The higher the dpi value in monochrome printing, the better the printing effect. The situation is more complicated when printing in color. Usually the quality of printing is affected by the dual influence of dpi value and color harmony ability. Since the black-and-white printing resolution and color printing resolution of general color inkjet printers may be different, you must pay attention to which resolution the merchant tells you when purchasing and whether it is the highest resolution. Generally, at least an inkjet printer above 360DPI should be selected.


Color Harmony Ability


For users of color inkjet printers, the printer's color mixing ability is a very important indicator. Traditional inkjet printers, when printing color photos, if they encounter transitional colors, they will select a close combination of the three basic color combinations to print. Even if black is added, this combination generally cannot exceed 16. In this way, the expressive ability of color scale is unsatisfactory.


In order to solve this problem, the early inkjet printers used the method of adjusting the density of the spray dots to express the color level. However, for products with a color resolution of only about 300dpi at that time, the result of adjusting the density is that the transition color effect is very poor, and it looks like there will be many spots. Color inkjet printers, on the one hand, make the printed dots thinner by increasing the printing density (resolution), thereby making the image more delicate; There are several methods such as the number of colors, changing the size of the ejected ink droplets, and reducing the basic color density of the ink cartridge. Among them, increasing the number of colors is the most effective. Usually, a five-color color ink cartridge is used, and the original black ink cartridge is added to form a so-called six-color printing. In this way, the number of color combinations obtained by arranging and combining has been increased many times at once, and the effect improvement is naturally very obvious.


The principle of changing the size of the ejected ink droplets is to use standard-sized ink droplets to eject the ink droplets of a standard size in the places where the color density is required to be high, and to spray small ink droplets in the places where the color density is required to be lower, which also realizes more color gradations. . To reduce the color density of the ink cartridge is actually to use the method of repeated inkjet to form more color levels in the place with high color density.


How to judge the performance of the printer


The above is about "how to judge the performance of the printer". When choosing a UV printer, we must choose a printer based on factors such as resolution and color harmony ability, so that the printout can be more realistic.