7 common sense about the print head of UV flatbed printer

The print head of the UV printer is believed to be one of the most concerned issues for all users, and it is also a question that is repeated and repeated. After all, the print head is the most frequently used in daily use, and the most common problem occurs around the print head. Understanding the common sense of the print head can help us become more comprehensive and professional.

print head

Import and domestic

The domestic uv printer print head, whether it is Epson print head, Seiko print head, or Konica print head, Ricoh print head and other print heads, are imported, and 90% of them are imported into Japan, and the rest are from the United Kingdom and the United States. Since the country does not have the corresponding technology for the time being, it cannot be produced.

Civil and industrial

print headThe print head of the UV printer itself is not divided into civilian and industrial, but there are big differences in the printing results, printing speed, printing performance and other parameters of different print heads. In order to facilitate the user’s understanding, the industry will divide the high-performance, long-life, and compatible print heads into the industrial field. In contrast, short printheads, high failure rates, and inexpensive printheads are classified as civilian printheads.

Cheap and expensive

To believe that “a penny and a share of goods” is the eternal truth, any product sold by a business is to make money, it is impossible not to make money, or even to sell at a loss. In the same way, there are no good, cheap nozzles, only good and expensive nozzles. Don’t be deceived by the slogan of advertising, you must make a rational judgment.

Print head and technology

Under normal circumstances, the more expensive a printhead is, the higher the capital, manpower, and material resources of the corresponding motherboard program development and upgrade services. Therefore, this has become an important criterion for judging the technical level of the manufacturer. The technical gap between the manufacturers can be compared by asking the price of the nozzles made by the manufacturer.

Print head and ink

Different uv printer nozzles have different nozzle diameters, nozzle materials, and internal structures, so it is important to remember that inks cannot be mixed. Otherwise, it will not only cause a reaction between the inks, but also shorten the life of the printer head, causing it to be clogged.

Encrypted and not encrypted

print headEncrypted and unencrypted printheads primarily refer to the Epson DX7 printhead, which has an encrypted printhead, a secondary encrypted printhead, three encrypted printheads, and an unencrypted printhead. Encryption means that the printhead will print a certain distance after printing, and a color bar will appear, causing the pattern to be scrapped. Unencrypted printheads don’t have this problem, but the price is more expensive than encryption. Domestic uv printer manufacturers are more mature in the process of decoding one encryption and secondary encryption, but the three-encrypted print head is still being cracked.

Warranty and no warranty

This is the last one, mainly because the users who ask too many questions ask and care about it. Once the printing head has been shipped from the factory, it will be returned for sale and replacement unless it is problematic before it is used. Installed on the equipment, after the ink is tested, the problem is that it is not guaranteed. There are too many main uncontrollable factors.

From this point of view, in fact, the printer print head is not without warranty, it is part of the consumables. Why do you often hear that some manufacturers advertise printheads for 1 year or even 2 years? These are just slogans for propaganda. Carefully review the terms of the warranty, various additional conditions, additional costs, harsh to say not to report for 1 year, 20 years of insurance are manufacturers to make money.

The sublimation printer print head is slightly blocked, how to solve it?

During the heat transfer printing process, it is found that the piezoelectric sublimation printer print head nozzle has a slight blockage, and then press the PAUSE button to pause the print job without hesitation. The ink is then cleaned from the nozzle by a vacuum cleaner or a manual syringe. After cleaning, use a plastic squeeze bottle to spray some cleaning solution onto the nozzle surface to wash away the residual ink. Nanjing ORIC sublimation printer manufacturer specializes in the production of sublimation transfer machine, printer print head blockage problem handling has a coup.

Note: Do not use excessive force when using a manual syringe, otherwise the nozzle will be damaged due to excessive pressure. 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 times! In addition, it is also necessary to carefully check the condition of the nozzle and find out why the nozzle is clogged.

print head

What should you do if the print head is frequently clogged during sublimation transfer printing?

1. First press the PAUSE button to pause the inkjet job, then press the PURGE button to move the printhead to the leftmost cleaning position.

print head2. 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 print head, and then use a glass syringe to draw a special cleaning solution to clean the nozzle. Method: 40 ml of washing solution was used every 10 minutes, for a total of 3 to 4 times.

4. After cleaning, reinsert the ink supply tube and level sensor signal lines and continue the previously paused print job.

How to make the printhead of UV printer like the new?

UV printer printhead maintenance methods are available in four ways, including initial installation, routine maintenance, fault maintenance, and maintenance during the fake period.

After the equipment is installed, the equipment is initially installed to maintain the print head.

In order to get the printer head into optimal operation, before the UV printer officially begins to undertake the production business, please be sure to print some pictures as much as possible in 1-2 days. The picture is best CMYK/LC/LM/W 7 colors. Used, and add color bars on both sides of the screen to ensure that 7 print heads are always in the inkjet state.

printhead

How to maintain the print head after the daily work is completed?

In the off state

After all the print jobs are completed every day, in order to keep the print head in optimal working condition and to avoid clogging the printhead due to UV ink evaporation, please follow the method below to maintain the device and let the device stay overnight.
1. Turn off the UV printer power supply.
2. Clean the non-woven fabric with a special cleaning solution, then pour the cleaning solution onto the non-woven fabric to make it wet.
3. Move the handpiece back to the rightmost cleaning station and tightly bond the nozzle to the nonwoven.
4. Keep this state for the device to stay overnight.

Power on

1. Turn off the UV lamp and draw the wind on the platform.
2. Print the test strip, check whether the print head status is intact. If not in good condition, continue to maintain the print head until the print head is in good condition. (no needle, no oblique spray)
3.Do not turn off the computer and software, let the machine standby flash.

printhead

After the printhead was found to be slightly blocked, the treatment method was found.

1. Regularly maintain the print head (slightly wipe the print head surface with a non-woven fabric) until the nozzle is in good condition.
2. Cleaning solution maintenance (squeeze the surface of the print head with a sponge stick to the cleaning solution for 1-2 minutes), then wipe the surface of the print head with a non-woven fabric, check the print head status diagram. And repeat the operation several times until printing the head status is normal.
3.Combined with the cleaning solution maintenance method, increase the print head correction voltage 1-2V print 2 m * 1 m color block (print the print head state problem color color block) interval 2-3 times check the printhead state map until the print head status normal.
4. Do not rinse the print head without authorization. If the print head is damaged, the consequences will be at your own risk!printheadAfter the equipment is installed, the equipment is initially installed to maintain the print head.

The UV printer is not used for a long time, and the printer’s print head is easily blocked. Especially during the Spring Festival, the temperature is relatively low, and the ink is prone to deposits and impurities after being frozen. Ensure that the room temperature is between 20 ° C and 30 ° C. If the temperature is too low, it may cause serious damage.

 

Five Reasons for Burning Print Head of Digital Printing Machine

The digital printing machine print head can be used to print the best results, and the print head is good, and the ink will be more expressive. The print head is an indispensable carrier for digital printing production, but the operation is not good, the print head is easy to be burned, then everyone knows why the digital print print head is burnt?

There are five reasons why the digital printing machine print head is burnt:

1. The static electricity is too high

Excessive static electricity can affect the printing effect. In severe cases, it can damage the circuit part of the printer. Especially in the autumn and winter seasons, if the human body is too high, if you touch the print head directly, it will easily damage the circuit part of the print head. Therefore, not only the printer has a good and stable grounding, but also the operator is in contact with the machine and the print head. Be sure to do anti-static measures, such as with anti-static meters.

2. The positive and negative poles of the power supply are reversed.

This kind of operation is illegal. During the operation, try to follow the standard operation, especially the print head of the wide-format digital printing machine. If it is not necessary, try not to insert or pull the circuit to avoid the positive and negative connection of the power supply. Reverse operation.

3. Staying in the “dry burning” state for a long time

If the print head of the digital printing machine is in a “dry burning” state for a long time, it is naturally easy to be burned.

4. The working voltage is too high

If the print head is operated under high load for a long time, it is easy to cause aging of the piezoelectric crystal, especially for the piezoelectric print head.

5. Strong corrosive ink or other liquid gets on the printed circuit board

How to get strong corrosive ink or other liquid on the circuit board of the print head can easily cause short circuit, especially solvent ink. Therefore, in the process of processing the print head, we need to pay special attention to not to blot the ink onto the data line interface of the print head, which is likely to cause a short circuit. In severe cases, the print head will be burnt.

The above 5 points are the reason why the digital printing print head is burned, I hope to help you digital printing practitioners.

In the daily production of digital printing, everyone should pay more attention to the maintenance of the print head. If the print head is burned, there is usually no way to recover it. It can only be scrapped and replaced with the print head. This increases the production cost.

How to solve the problem of flying ink in inkjet printers in winter?

In winter, due to the cold and dry climate, the inkjet machine will appear flying ink and other phenomena, seriously affecting the sound field quality. In this small series, we will briefly introduce how to choose ink to make the inkjet printer work normally in winter.

First of all, in the ink purchase should choose the thermal transfer ink suitable for winter use, most domestic manufacturers have corresponding products launched. Another method is to warm the ink tank to increase the temperature of the ink. This method uses a large amount of electricity, but it is also worth promoting because it is much safer than adding a bulb at the bottom of the cartridge. The higher viscosity of the printing ink will damage the piezoelectric ceramic inside the nozzle and cause the print head to be exhausted, such as the vertical surface of the painting surface!

Secondly, we can control the ink activity by controlling the ink temperature. That is, the ink cartridge heating method is to add a temperature control device to the secondary ink cartridge. Some people simply add a light bulb to the bottom of the ink cartridge (if the space agrees) The effect is not bad.

Finally, the printer nozzle is maintained frequently, and the ink solvent is a volatile liquid. When the air is dry, the volatilization speed will be accelerated. The ink on the surface of the wide-format inkjet printer print head will dry up quickly, causing the nozzle to clog, which appears as flying ink during the inkjet process. Frequent disconnection and inkjet skewing occur, and if you do not pay attention to the maintenance of the inkjet printer nozzle, it may damage the print head.