The core component of an inkjet printer is an inkjet printhead, which is what we often call a nozzle. For the printing company, the phenomenon of "plugging" of inkjet printers has occurred from time to time, which can be described as "labor." 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! 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, it can easily deal with! Come and study together! 1. Construction of inkjet printer nozzle The common nozzle structure of the inkjet printer mainly includes an inkjet head and an ink cartridge integrated machine and a separate type: The ink head structure of the integrated machine is replaced after the ink tank is used up. The ink head and the ink tank are replaced together. Such a mechanism is relatively tightly coupled and has high reliability, but the relative cost is relatively high; The ink head and the ink tank of the separate structure are separated, and the ink tank can be separately replaced after the ink is used up, which can save the cost to some extent. Most of the printers currently on the market (such as EPSON, HP, etc.) use a double ink head structure: a black ink head and a color ink head. In the ink tank, most of the black ink is independent, and the other three color ink cartridges are integrated. Some of the ink cartridges of each color are independent and can be replaced separately, further reducing the printing cost. 2. The "culprit" that caused the inkjet printer to plug Because the print head is normally sealed after printing, the seal is not tight or placed for a long time, the moisture 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 the different inks are mixed with each other to produce a chemical reaction. It usually appears as a failure such as frequent disconnection, missing color, illegible writing, or even normal printing. 3. Inkjet printer plugging phenomenon classification & solution It can be roughly divided into two categories: soft plugs and hard plugs. Repair of soft plug 1. Soft plugging 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 original ink can be recovered after repeated cleaning. It is a bit simple and fast, without any physical damage; the disadvantage is that it is costly to use and wastes ink. 2. The print head cleaning function is used in the application tool of the printer driver; the advantage is that the operation is simple, convenient and fast; the disadvantage is that the cleaning effect is not ideal. Precautions 1. The above two methods 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 ink. Further processing of the specific situation; 2, due to the "air resistance" phenomenon between the ink cartridge (such as the sponge filling type) and the print head, a small amount of irregular disconnection will occur. At this time, it is not necessary to repeatedly clean it. After being placed for a period of time, it can be used normally after being turned on again; 3, avoid mixing ink. Newly purchased inks should not be rushed to add to the ink cartridges. First use a clean disposable syringe to inhale some of the ink and observe it in a bright place to see if there is any suspended matter in the ink. If there is suspended matter, it should not be mixed. Then, a little ink is sucked from the used ink cartridge and mixed with the newly purchased ink, and then left to stand for 24 hours, and then observed to see if the mixed ink has a chemical reaction. If a change occurs (such as crystallization), the two inks are described. Poor compatibility, remember to mix. Hard plug repair The hard plug refers to the plug caused by chemical coagulation or impurities in the nozzle. The troubleshooting method is difficult. In this case, the following four methods can be used to solve the problem. 1 , soaking method Scope of application: lighter resistance Essential tools: 95% alcohol, a clean cup and a flat metal container on the underside;
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