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CIJ Inkjet Printer

CIJ Inkjet Printer

Description
CIJ printer is short for continuous inkjet printer. The print head contains an ink drop-generator with a vibrating drive rod. This creates ultrasonic pressure waves in inkjet ink, breaking the ink up into individual droplets. When these droplets fall between a set of electrodes, individual droplets are intermittently charged. The size of the charge given to each droplet determines how far the ink will be deflected out of the stream when passing through the deflector plates. This determines its placement on the product. By placing a collection of these droplets close together, a variety of characters are printed as the product passes the print head. Continuous inkjet printer prints with low resolution and high speed. The general industrial inkjet printing system adopts CIJ technology.

Advantages
1. High speed printing of continuous inkjet printer keeps up with the fastest production environments.
2. Non-contact printing enables uneven and flexible surfaces to be coded.
3. Superior print head technology provides better drop placement and print quality.
4. CIJ printers can clean print head automatically. This guarantees that the print nozzle stays unobstructed, even on frequent start-stop production lines.
5. The major advantages are the very high speed of the ink droplets, which allows for a relatively long distance between print head and substrate, and the very high drop ejection frequency, allowing for very high speed printing.
6. It is free from nozzle clogging as the jet is always in use. Therefore, volatile solvents such as ketones and alcohols are allowed to be employed.
7. Continuous inkjet printer can make highly efficient use of ink jet ink. Ink droplets not deflected out of the stream are re-circulated to repeat the process.
8. Technology of CIJ printer is one of the oldest ink jet technologies in use and is fairly mature.
9. This equipment can adjust ink’s viscosity and density automatically.

Technology of Continuous Inkjet Printer
CIJ printer recorded telegraph signals as a continuous trace on paper using an ink jet nozzle deflected by a magnetic coil. In CIJ technology, a high-pressure pump directs liquid ink from a reservoir through a gun body and a microscopic nozzle, creating a continuous stream of ink droplets. A piezoelectric crystal creates an acoustic wave as it vibrates within the gun body and causes the stream of liquid to break into droplets at regular intervals: 64,000 to 165,000 droplets per second may be achieved. The ink droplets from print head of continuous inkjet printer are subjected to an electrostatic field created by a charging electrode, the field varies according to the degree of drop deflection desired. This results in a controlled, variable electrostatic charge on each droplet. Charged droplets are separated by one or more uncharged "guard droplets" to minimize electrostatic repulsion between neighbor droplets. The charged droplets pass through an electrostatic field and are deflected by electrostatic deflection plates to print on the substrate, or allowed to continue on un-deflected to a collection gutter for re-use. The more highly charged droplets are deflected to a greater degree. Only a small fraction of the droplets is used to print, the majority being recycled.

TallKee is a company with more than 10 years’ experience in manufacturing industrial inkjet ink, solvent and ink cleaning fluid. Our inkjet consumables are compatible with inks of different brands, such as Domino, Videojet, Willett, Imaje, Hitachi, Linx. The continuous inkjet printers and drop on demand inkjet printers both can be found in our factory. Products in TallKee sell well in home and abroad.

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