The core component of the UV flatbed printer is the print head. Regarding the correct and effective UV printer nozzle cleaning, many customers and friends are not very clear or the method is not appropriate. Below I will analyze the correct method of UV printer print head cleaning, hoping to help customers and friends!
Uv flatbed printer 7 points by maintenance, 3 points by quality.
Cleaning the uv flatbed printer printhead is an important technical activity in the maintenance of the uv flatbed printer. Correctly mastering the cleaning method of the sprinkler can well maintain the printer nozzle, effectively extend the service life of the sprinkler, and reduce the depreciation cost of the device. So how do you clean the printer nozzle, what should you pay attention to during the cleaning process?
Preparation: The rear of the printhead nozzle of the uv flatbed printer also includes the nozzle drive circuit board, so it is necessary to protect the drive circuit board and wrap the rear half of the warehouse with the usual plastic wrap.
There are several ways to clean the print heads of a printer print head:
The first method: immersion method
Scope of application: lighter resistance
Essential tools: 95% alcohol, a clean cup and a flat metal container.
Prepare a small flat plate, place the spray head flat on the plate, and then inject the special cleaning solution for the uv printer into the plate, the depth of which is just immersed in the nozzle. Be careful not to spill water on the cable plug and drive board. The first soak time is about 1 to 4 hours.
The second method: print head injection flushing
Scope of application: The situation is blocked.
Essential tools: 95% alcohol, a clean cup, a disposable syringe, disposable infusion set.
Working principle: Using the pressure generated by the siphon action of the syringe, the organic solvent of alcohol is injected into the print head to clean the dry ink head.
Use a plastic tube of a disposable infusion set, insert one end into the 5ml syringe, insert the other end into the ink inlet of the nozzle that needs to be flushed, and press the distilled water in the syringe into the nozzle, paying attention to the pressure is not too large, so as not to squeeze the water. Waterproof isolating glue inside the bad nozzle. This process needs to be repeated several times until it is seen that each of the ink outlets ejects a fine water column. In this way, the blocked nozzle is completely cleaned.
The third method: distilled water cleaning
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: It is similar to the working principle of pressure cleaning method, and will not be described here.
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.
The fourth method: ultrasonic instrument cleaning
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 inkjet print head gently into the washing machine, 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 board Contact with pure water or special cleaning solution), and clean it quickly after 10 to 15 hours. The advantage is that the cleaning effect is very good, the print 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. Under normal circumstances, ultrasonic cleaning machines can be found in hospitals, eyewear stores or mobile phone special maintenance points, and some places are free, and can also be modified with ultrasonic humidifiers. It is worth noting that the cleaning solution must use pure water or special print head cleaning solution. It is not allowed to use the cleaning solution of the hospital, eyeglass store or mobile phone special maintenance point, because the cleaning solution of the glasses store generally contains more impurities, the hospital The cleaning solution of the mobile phone special maintenance point is generally a strong organic solvent, and frequent use can cause fatal damage that is difficult to repair the inkjet print head.
The fifth method: If the operation has not cleaned the print head, it is basically a hard blockage. At this time, it is recommended to contact the manufacturer and use the manufacturer’s equipment for cleaning.
Epson flat series printer nozzle cleaning method:
1. After the equipment is installed, and the maintenance of the printer head is carried out at the beginning of the equipment startup
1). In order to make the nozzle enter the best working condition, please use the 1-2 days to print some pictures as much as possible before the equipment officially begins to undertake the production business. The picture is best used in CMYK 4 colors, and in the picture. Both sides of the C, M, Y, and K color bars are added to ensure that the four nozzles are always in the inkjet state, just like the car just bought back, the better the wear-in, the smoother the machine will be used later. .
2). It is best to take out the moisturizing sponge in the rightmost cleaning station together with its bracket when printing.
2. How to maintain the printer head after the daily work is completed
After all the print jobs are completed every day, in order to keep the nozzles in optimal working condition and to avoid clogging the nozzles due to solvent evaporation, please use the following methods to maintain the equipment for the night.
10. Turn off the power to the device.
2). Clean the moisturizing sponge with a special cleaning solution, then pour the cleaning solution onto the sponge to soak it.
3). Move the handpiece back to the rightmost cleaning station and tightly bond the nozzle to the moisturizing sponge.
4). Keep this state for the device to stay overnight.
3. The treatment method after finding that the nozzle is slightly blocked
1）. Recommendation: After the printer head is found to have a slight clogging phenomenon, press the PAUSE button to pause the printing operation without any hesitation. Then use a vacuum cleaner or a manual air pump to spray the ink from the printhead to clean the printhead. After cleaning, it must be squeezed with plastic. The pressure bottle sprays some cleaning liquid onto the nozzle surface to wash away the residual ink.
Note: Do not use excessive force when using the manual air pump, otherwise the print head will be damaged due to excessive pressure.
2. Timely and decisively and thoroughly handling the slight clogging of the nozzle is very important to keep the nozzle in optimal working condition during long printing!
3. In addition, it is also necessary to carefully check the condition of the nozzle and find out why the printing head is clogged.
4. Treatment method when nozzle clogging frequently occurs during the printing process
1. Press the PAUSE button to pause the inkjet job, then press the PURGE button to move the nose to the leftmost cleaning position.
2. Keep the power of the device on, and unplug the liquid level sensor signal line that connects the sub-tank to the head control board.
3. Unplug the ink supply tube (from the secondary ink tank) on the nozzle, and then use a glass syringe to extract the special cleaning solution to clean the nozzle. Method: Use 40ml of cleaning solution every 10 minutes, every 3 to 4 times. .
4. Re-insert the ink supply tube and level sensor signal line after cleaning, and then continue the previously paused print job.