Xerox DCC 2270 3370 Toner Cartridge CT201370 CT201360 for Xerox DocuCentre-IV2270/2275/3370

The blackness value is calculated by emitting a certain number of intense beams from the blackness tester to the graphic to be measured, then reflecting them back to the blackness tester, calculating the absorbed beams, and then using a fixed calculation procedure to arrive at the value.

Laser printers are mainly designed for office use, so their OEM average blackness value is generally around 1.48. Some models of printers in our country are used for printing media such as film or sulfuric acid paper, the fibers of these printing media have undergone special chemical treatment, compared to ordinary printing paper, the resin in the toner is more difficult to melt and penetrate into the paper fibers, so the requirements for toner are higher. Under the condition of ensuring the toner cartridge status, the toner provided by our company can meet this requirement, and its average blackness value is generally around 1.50 (individual models can reach an average blackness value of 1.55, such as Xerox P8e). We generally have a habit of thinking that the darker the print, the better the toner. But sometimes other factors of the toner may also cause this illusion, such as the poor fixation of toner, just adsorbed on the surface of the paper and not fully penetrated into the paper fiber, when the surface of the paper, most of the toner particles piled up on the surface of the paper, the absorption rate of light is very high, giving the feeling of very black, which is also some users say that the print sample without looking, touching it with your hands to know its black or not black The reason. But in fact, the melting point of this toner is high, the printed characters are not solid, and is not a good toner.

Of course, the high blackness value also has its negative effects, that is, a certain amount of toner, in a certain average coverage rate, the number of pages printed relatively reduced.