Decision type of comprehensive quality toner mainly consider the following six factors: black, bottom ash,rate, resolution, for a degree, ghosting. These factors interrelated, and mutual influence, the following factors affecting these expounded on the reasons for the correlation.
A black degrees
Black is the calculation of the value of the value of black test fired a certain number of first-beams, graphics strikes into the analyte, then return to the reflection of the value of the device and calculate their absorption by the beam, and through a fixed formula that values.
Laser Printer is designed for the main office, so its OEM value of the average black general in 1.48 or so. While some models in the domestic printer, or to a film such as sulfuric acid paper print media, print media these fibers have been special chemical treatment, a relatively ordinary printing paper, toner resin in the melting even more difficult to infiltrate into paper fiber, which is why the toner demands relatively high. We have a habit in general, the more words that print black toner better. But sometimes toner other factors may also cause this illusion, such as toner for the degree of poor only in the paper is adsorbed on the surface but have not fully penetrated into paper fiber, then the paper surface accumulation of toner particles in the paper most of the surface of the light absorption rate is very high, and people feel very It is also said that some users do not have to see print samples, we can hand touch and do not know their black causes. But in fact, the melting point of this high toner, print the word is not solid, is not a good toner.
High value of the course and also has its negative role, a certain amount of toner, the average coverage to a certain, relatively reduced its print pages.
Second, bottom ash
Bottom ash is the value of the device by a black print样张did not test the words of the space blackness value. Print it with the white paper is related to the extent that the same type of toner on paper in different print the bottom ash value is not necessarily the same. Under normal circumstances, the bottom ash OEM toner value of about 0.05 to 0.06, higher than 0.06, the results of visual print samples will be feeling a bit dirty. Bottom ash affect the value of the main reasons for the conductive characteristics and toner (electric) and the size of the toner particles. Conductivity is stronger, the easier it is the finer particles produced bottom ash. Each type of printer toner request of the General Electric is not the same as, that is also stressed that the powder for a reason. In addition, since the photosensitive drum surface of the photosensitive layer damage caused leakage, will lead to bottom ash, which can be explained when the photosensitive layer was worn, print the pages will be damaged significantly in the black blot.
Third, the rate differential powder
Poor powder rate refers to a certain amount of toner in the normal print in the share of. Toner in the production, the various ingredients according to a certain proportion to join together and fully mixing, the corresponding treatment and then grinding form. In the process, it could not guarantee that each toner particle size and its main ingredients toner, iron powder, the same proportion of resin, only a certain proportion of scope. Outside the range, the toner particles may become. Toner's rate at 5% to 7% when the normal range.rates also directly affect a certain amount of toner print pages.
Fourth, resolution
Resolution refers to per-inch print on the point (DPI). The toner particle size will directly affect the resolution. We can print some of the fine strokes more to visual whether it vague, to judge its high and low resolution. Lines can also observe whether not clear, whether the characters in the corner off the angle and whether such phenomena as the hollow of guilty assessment. Currently, the resolution of the toner main 300 dpi, 600dpi, 1200dip. Resolution in 1200 dpi and the HP1200, HP4100 two models of printer toner demand is very high.
5, a set of
Referring to a set of paper is attached to the surface of the toner to the paper infiltration after melting fiber capacity. Melting point is the impact of toner set an important factor. When high melting point, when the paper with toner particles After fixing components, failed to fully melted into the paper fibers, from fixing components through. However, low melting point, the stability of the toner will become poor. We test, it can print graphics with their hands touching the surface, the degree to feel its rough, and obtained a set of good and bad. Generally, a set of poor language print toner its surface will be very rough. Rigorous tests, can use the tape to a specific visco-print graphics, graphics again next detection of changes in the black.
6. Ghosting
Ghosting is the formation of the letter because the photosensitive surface of the graphic form of charge from the District after the completion of an imaging still latent residues can be induced into the charge zone as a result of the next imaging can still see hidden like phenomenon. Toner direct impact on the power of the obvious phenomenon or ghosting. Ghosting phenomenon and ghosting effects similar to but distinct from ghosting. Ghosting is due to the general phenomenon of the machine fault caused the phenomenon, such as fixing components of the F layer roller destruction caused Nien powder, which led to an emphasis on video. In addition, the print media will also affect ghostly phenomena, like sulfuric acid than ordinary paper printing paper phenomenon more prone to ghosting, just print the paper will not use off than printing paper prone to ghosting phenomenon.
More talk about the impact of Print Quality six factors, from the print paper aesthetic perspective, we have to consider the brightness toner, the print paper and the word also illuminated.