1、IDiscussed digital printer and the numeral printing ink type Along with printing digitization step quickening, the numeral prints cTP and so on the new technology to be like a raging fire. Already becomes prints the irreversible mainstream development technology now. The digital printing printabilit
2、y also has the obvious difference with traditional printing. To the printing equipment printing material, the printing technology set the new request. In order to achieve the good print quality and the high velocity production. The digital printing material, in particular the numeral printing ink re
3、search and the development appears importantly. After several years development, the numeral printing ink technology Zhen will be later day mature. But the numeral printing ink high price still was restricts the digital printing development the bottleneck. The principle digital printing image format
4、ion To discuss the numeral printing ink, must talk about the digital printer inevitably, because the different factory promotes the digital printer image formation principle is different, to uses the numeral printing ink the composition performance, the character request to be also different. At pre
5、sent uses the digital ElSiJ equipment image formation principle may divide into six big kinds.1.electronic camera called the static electricity image formation, is useing the laser scan method to form the static electricity on the photoconductor to dive the shade to use the charged color powder and
6、the static electricity again dives the shade electric charge function, shifts the color powder phantom to accepts for printing in the thing to complete printing.2.spray imaging printing ink have by certain speed from the tiny spray nozzle selectively spray to accept for printing in the thing to real
7、ize the printing ink phantom reappearance. Spurts ink printing to divide into continuously spurts ink printing and according to must spurt ink printing. Spurts the ink system is continuously causes the ink using the pressure to form the continual ink class through the pore. After the high speed unde
8、r ink changes the tiny bubble causes the bubble charged. The charged ink drop may spray under the electric charge board control to accepts for printing the position which the surface needs to form the printing chart article. The ink drop displacement quantity and accepts for printing an inking posit
9、ion leaves when the pore by the ink drop the charged quantity decisionAccording to must spurt the ink with to spurt the ink differently to lie in affects Yu the Chu ink the pressure is not continuously continual. When is the image formation digital signal control, the need only then has the pressure
10、 to affect sprays. According to must spurt the ink because does not have the ink drop displacement, may omit the ink trough and the circulatory system, spurts the ink structure relative simplification ? 203. electricity condensation image formation Electricity condensation image formation is through
11、 the electrode between electrochemistry responded causes the printing ink to have the condensation. And adheres firmly in the image formation drum surface forms the image. Has not had the blank region printing ink which the electrochemistry responded still to maintain the liquid state to be possible
12、 through the scraper to blow except, but the drum surface from adheres firmly the chart article which the printing ink forms then to shift through the pressure to accepts for printing in the thing, completes printing. Electricity condensation numeral printer representative the type is the EIcorsy Co
13、rporations product. The resolving power is 400dpi? 204. magnetic recording image formation Magnetic recording image formation is depends upon the magnetic material the magneton the directional arrangement to form magnetism under the outside magnetic field function to dive the shade. Again dives the
14、shade using magnetism sex-linked colors powder and magnetism to affect mutually under the magnetic field strength completes the development. Shifts by magnetism sex-linked colors powder to accepts for printing in the thing to form the image. This method only uses in black and white printing generall
15、y5. Static electricity image formations Static electricity image formations apply the broadest digital printing image formation technology. It is uses the laser scanning method to form the static electricity on the photoconductor to dive the shade. Uses the charged color powder and the static electr
16、icity dives the shade electric charge function to form dives the shade, shifts to accepts for printing in the thing namely to complete printing. Develops the way differently to divide into two kinds of one kind uses the electronic printing ink development. Resolving power ? 00dpi, take HPInd go as representative. Another kind is uses the dry color powder development, the resolving power ? 00dpiXeikon, Xerox, Agfa, CanonKodak, ManRoIand and IBM and so on the d
