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Types and principles of automatic online inkjet printers

by:Leadtech Coding     2021-11-25

The automatic online cij printer refers to the automatic inkjet equipment for the production line of the supporting enterprise to perform the encoding operation. The automatic online cij printer includes the small character inkjet printer. Printers, laser printers, thermal foam printers, thermal transfer printers and high-resolution UV printers. Fully automatic printers do not include handheld printers.

1. Small-character inkjet printer: CIJ inkjet printer, which uses the charged deflection method of the ink to deflect the ink dots out of the normal flight path, and shoots towards the target to print The surface of the object forms a dot matrix to form words, numbers or graphics. Its printing speed is fast, single line printing can reach 300 meters per minute. Taking mineral water bottle and beverage bottle date printing as an example, the printing speed of small characters can reach about 1,000 bottles per minute, due to the limitation of printing height and accuracy , Small character cij printers are mainly used for simple digital inkjet codes such as production date and batch number.

2. Laser marking machine: Laser marking machine, using different lasers to hit the laser beam on the surface of various materials, and the surface material is generated by light energy Marking equipment that uses physical or chemical changes to engrave logos such as patterns, trademarks, and text. The laser printing machine has no consumables and has a long life. It can operate in harsh environments and can be permanently marked on various metal and non-metal surfaces. The marking effect is corrosion-resistant and prevents malicious tampering. However, its inkjet coding accuracy is not as good as that of high-resolution inkjet printers, and may cause damage to the surface of the printed object. In addition, its inkjet coding speed is much slower than inkjet printers.

3. Thermal foam inkjet printer: a high resolution inkjet printer using thermal foam inkjet technology Code machine, its nozzle adopts semiconductor thin film technology, and uses laser process and high-precision deep layer technology to form multiple nozzle holes with a diameter of about 50μm. These nozzle holes are arranged in high density. The inkjet is energized and heated by thin film resistors to produce ink Numerous tiny bubbles, the bubbles gather into large bubbles at a very fast speed and expand, forcing ink droplets to be ejected from the nozzle; when the resistor has no voltage, it stops heating and no ink droplets are ejected. It can print color content, low initial investment, but high cost of consumables in mass production, and in terms of printing quality, because the thermal foam inkjet printer needs to heat the ink during use, and the ink is prone to chemical changes at high temperatures , The nature is unstable, the color authenticity will be affected to a certain extent.

4. Thermal transfer inkjet printer: The principle is to place the ribbon between the inkjet printer head and the coded product, and the inkjet printer head will At the same time, it moves a certain distance between the ribbon and the surface of the product, and mainly prints the content on the flexible packaging film and label. The application range is small, and it is usually only used in the packaging and printing industry.

5. High-resolution UV inkjet printer: Its working principle is the same as that of piezoelectric inkjet printer. It has hundreds or more piezoelectric crystals to control the nozzles separately The multiple nozzle holes on the board are processed by the CPU, and then a series of electrical signals are output to each piezoelectric crystal through the drive board. The piezoelectric crystal deforms, the volume of the liquid storage device in the structure changes suddenly, and the ink flows from the nozzle. It is ejected from the medium and falls on the surface of the moving object to form a dot matrix, thereby forming text, numbers or graphics. UV inkjet printer combines the advantages of inkjet printing technology and ultraviolet curing technology, not only has the convenience of variable data online inkjet technology, but also has the efficiency advantage of high adhesion UV curing.


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