How to Solve The Plug on Print Head of Uv Printers?

Plug solution
The repair of the hard plug of uv printers, the hard plug refers to the chemical coagulation in the nozzle or the plug caused by impurities, the troubleshooting method is more difficult, in this case can be solved by the following method.

 1. Soaking method, applicable range: the resistance is lighter. Required tools: cleaning solution, a clean cup and a flat metal container with a flat surface; working principle: dissolve the ink particles one by one with medium-strength organic solvent, be sure to use cleaning solution, otherwise it will be counterproductive. Solution: First find a metal container with a flat surface and add a little cleaning solution to the container. 


The cleaning solution is limited to the immersion of the stainless steel edge of the print head (be careful not to let the PCB contact the cleaning solution). Soaking time generally ranges from 2 hours to 4 days. The advantage is that the cleaning effect is good, and it is not easy to cause physical damage to the print head; the disadvantage is that the time required is long, and it is difficult to solve the user's urgent need.


2, distilled water cleaning method, the scope of application: severely blocked. Essential tools: a decoded empty cartridge, a disposable syringe, and a bottle of medical distilled water (also available in clean water). Working principle: similar to the working principle of pressure cleaning. Solution: Prepare a decoded empty ink cartridge, a disposable syringe and a bottle of medical distilled water. Using the pressure generated by the siphon action of the syringe, inject the syringe into the distilled water through the vent hole of the ink cartridge, and then inject it into the cartridge for a while. The injected distilled water is sucked out by a syringe, so that the remaining ink in the ink cartridge is washed repeatedly several times.


3, ultrasonic instrument cleaning method, the scope of application: the most severely blocked. Working principle: The ultrasonic cleaning machine generates strong ultrasonic waves to make the water molecules vibrate violently, and the fine dry ink particles are shattered and dissolved in water to achieve the purpose of cleaning. Solution: Put the UV roll to roll printer head into the washing machine gently, add pure water or special print head cleaning solution, pure water or special print head cleaning solution is just enough to cover the stainless steel edge of the print head (be careful not to let the PCB contact To pure water or special cleaning solution, it can be quickly cleaned after 10 to 15 hours. The advantage is that the cleaning effect is very good, the printing head that has been blocked for many years can be cleaned and the operation is very simple; the disadvantage is that the maintenance cost is high and the price is relatively expensive.


We mainly focus on researching and developing high-speed and high-resolution inkjet printers and control system, our printers and accessories have the honor to earn widespread acclaim by the firmly support of the top R&D team and our own technology. Major products are E series water-based printers, R series UV printer, O series flatbed printers etc.
Read more: www.oricprinter.com

What's The Reasons and Solutions of UV Printer's Print head Plugged ?

For Uv printing the core part of the UV printer is the UV print head, which is what we often say. For the printing company, the "plugging" phenomenon of UV printers has occurred from time to time, which is really unbearable for users. Holding the printer for a long time will cause plugging, improper operation will cause plugging, and poor ink quality will cause plugging! It seems that the plugging phenomenon is very troublesome!

 UV printer plugging reasons and solutions
If it is not repaired in time, it will not only affect the production schedule, but also cause permanent plugging, which will make the printer scrap. If you change the nozzle, then the cost can be higher! Therefore, it is especially important to learn a "true skill". Daily maintenance, reduce the phenomenon of plugging, in the face of unexpected situations, can easily deal with!


The "culprit" of the UV printer plugging phenomenon, because the print head is normally printed, the seal is not tight or placed for a long time, the water is excessively evaporated, causing the ink particles to dry at the tip of the fine print head, so that the ink cannot be ejected normally. Or different inks are mixed with each other to produce a chemical reaction, which usually manifests as a failure such as frequent disconnection, missing color, illegible writing, or even normal printing.

We all know that the price of a UV flatbed printer ranges from tens of thousands to hundreds of thousands. The most need for maintenance of the whole machine is the nozzle. The nozzle plug is one of the common problems. Firstly, the cause of the plug is clearly understood. Better solve the problem fundamentally! Share it for everyone today!


Plug cause
Common reasons for UV plugs for UV flatbed printers:

First, [bubble plug] UV ink defoaming performance is not good, bubbles will be generated in the ink, once the bubble enters the nozzle, it is difficult to come out, resulting in air blockage.

Second, [Miscellaneous Plugging] The tiny particles in the UV ink enter the nozzle and are blocked in the narrow passage of the ink.

Third, [filter net plug] Inferior UV ink in the debris and harmful solvents are blocked in front of the filter, it will block after a long time.


Fourth, [dry knot plug] In a long period of time, no nozzle is used, and the ink is dry to cause plugging.

V. [Chemical plugging] UV inks of different natures are used, and debris is caused by chemical reaction.

Sixth, [corruption plugging] occurs when the temperature is high, the bacteria in the UV ink multiply, the ink is spoiled and denatured, and debris appears inside the nozzle.


VII. [Fouling plugging] UV ink itself is made of water when it is produced. The ink is used for a long time. The dirt is in the nozzle, causing the effective diameter of the nozzle to become smaller.

Eight, [oily plug] UV ink vehicles need lubricating oil, will volatilize and spread to the nozzle, changing the physical properties of the nozzle, causing plugging.

Nine, [Electrical plug] The nozzle is equipped with ink or ink cartridge chip electrical performance detection. When there is non-standard ink or chip, the ink valve is closed to different degrees, the ink can not pass normally, and it is called false plug.

X. [dirty plug] The nozzle is exposed to the outside, and dust particles in the air are adsorbed on the nozzle to cause plugging.

In general, the classification and solution of UV printer plugging phenomenon can be roughly divided into two categories: soft plug and hard plug. Understand the cause of the plug, then look at the solution:


The repair of the soft plug, the soft plug block refers to the disconnection fault caused by the viscosity of the ink on the nozzle due to various reasons. Sometimes it only adheres to the surface of the nozzle of the ink outlet. Generally, the cleaning solution can be recovered after repeated cleaning. The operation is simple and fast, without any physical damage; the disadvantage is that the use cost is high, and the cleaning liquid is wasted. Note that the above method should generally not exceed three times. When the printer "plug" is not serious, it should be opened within three times; if it cannot be opened three times, it means that the plug is more serious, and the number of cleanings is not necessarily useful, and it is unnecessary to waste a lot of expensive cleaning liquid. Further processing according to the specific situation.

Read more: www.oricprinter.com

How to Choose Right Print head with Ink Drop Technique for Uv Printers?

There are some Print heads usually work on uv printer such as : Kyocera nozzle, Ricoh nozzle, Toshiba nozzle, Konica nozzle, Epson nozzle, Seiko nozzle. The nozzles should be selected according to the actual production requirements. The civil processing and assembly nozzles have already met the processing requirements. For industrial production, high-end nozzles need to be assembled in order to meet mass production.

 Choose the three indicators of the uv printer nozzle:

1. Nozzle: refers to the number of orifices. The more the number, the more the corresponding inkjet outlets, the faster the speed.

Second, PL: refers to "picoliter" or "picoliter", the volume measurement unit, equivalent to "10 to the -12th power" cubic meters, the smaller the value, the higher the accuracy.

Third, the print width: the wider the width, the wider the range of inkjet printing per unit time, can effectively improve the printing efficiency.

The traditional printing and printing equipment use fixed size ink droplets, and there are problems of uneven pattern transition. Oric uv printer applies Ricoh G5 print head and can adjust the size of ink droplet. It makes the printing color transition zone have a layer sense and even.


Variable drops technology (gray-scale technology) is a technology in the printing industry. It refers to control the ink drop size at will. The application of this technology makes the application of uv flatbed printers more advanced, more broad prospect. Here is a detailed description of the uv flatbed printer manufacturer Dlican.

UV flatbed printers can realize variable drops technology, because of using the piezoelectric print heads. You can choose different combination of drops according to the different printing material. It improves the printing speed while meeting the requirements of the picture color density. It ensures accurate output image distinctly and excessive-evenly. The technology of the variable ink droplet is used because of the problems in the current uv flatbed printer, such as excessive unevenness, and lack of hierarchy.


As we all know, each picture is made of different color combination drops with different sizes. On the premise of no drops size variable technology, printed pattern is theoretically excessive very unevenly. Then use the variable technology of ink droplet, in two different color overregion it can print different size of ink droplets. Such effect looks to have a layer sense, excessively and more evenly.

The variable drops technology of uv flatbed printers overcomes the traditional print without administrative level sense, excessive uneven agonies. It gives uv flatbed printers industry new hope and a broad market prospect.


We have our own brand of printer, ORIC, and we also agent other brands abroad, such as EPSON, MIMAKI, ROLAND and MUTOH.

We mainly focus on researching and developing high-speed and high-resolution inkjet printers and control system, our printers and accessories have the honor to earn widespread acclaim by the firmly support of the top R&D team and our own technology. Major products are E series water-based printers, R series UV printer, O series flatbed printers etc.