5 reasons why the digital textile printer print head is burnt

The digital textile printer 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 and the print head is easily burnt. So do you know why digital print heads are burnt?

printer print head

There are five reasons why the direct-to-textile 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 in static electricity, if the print head is directly contacted, the circuit part of the print head will be easily damaged. Therefore, not only the printer has a good and stable grounding, but also the operator is in contact with the machine and the printing 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 direct-to-textile printer 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, we need to pay special attention to the process of processing the print head. Do not blot the ink onto the data line interface of the print head, which may cause a short circuit. In severe cases, the print head will be burnt.

printer print head

The above 5 points are the reason why the digital textile 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 printer head. If the print head is burned, there is usually no way to recover it, it can only be scrapped, and the print head is replaced again, which increases the production cost.

Demystifying the reason why the inkjet printer head needs to be cleaned frequently

Friends who often use inkjet printing machines should know that the inkjet printer head of wide format inkjet printers need to be cleaned frequently, so why?

Ink is a volatile liquid that volatizes in the air to clear solids, which is the main cause of nozzle blockage. When the printhead is sprayed on the cloth, a part of the ink remains in the surrounding area. This part of the ink is dried in the air and slowly makes the nozzle hole smaller or even blocks the nozzle hole. But because it is outside the nozzle, it is easy to clean, which is why we often clean the printhead.

inkjet printer head

How to maintain the inkjet printer head after the daily work is completed?

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 printer head due to solvent solvent evaporation, perform the maintenance as follows.

1. Move the handpiece back to the rightmost ink stack area and tightly bond the nozzle to the moisturizing ink stack core.
2. Clean the moisturizing sponge with a special cleaning solution, then pour the cleaning solution onto the sponge to soak it.
3. Turn off the power of the device.
4. Keep this state for the device to stay overnight.

inkjet printer head

After the printing head is clogged, the treatment method is found:

1. Timely and decisively and thoroughly handling the slight clogging of the nozzle is very important for maintaining the optimal working state of the head during long-time printing!
2. Re-insert the ink supply tube after cleaning, and then continue the previously paused print job.
3. After the printer head is slightly blocked, it is not hesitant to press the pause button to stop printing.
4. Unplug the ink supply tube from the print head, and then use a syringe to draw a special cleaning solution to clean the print head. Method: 40 ml of washing solution was used every 10 minutes, for a total of 3 to 4 times.

The difference between Epson secondary encryption and one encrypted print head

Recently, a wide-format printer that is produced and assembled using an EPSON secondary encryption print head has appeared on the market. So what is the difference between secondary encryption and one-time encryption? Here we make a simple analysis.

print headShortly after the launch of the EPSON one-time encryption printer printhead, it was quickly cracked by the manufacturer of wide-format inkjet photo printers. The reason is that the encryption algorithm is simple, and with a little analysis, it can be perfectly cracked. The encrypted one-time encrypted print head and the unencrypted print head have no difference in speed, ink output and life, and can be used normally.

After an encrypted printhead was cracked, EPSON carefully summarized and learned the lesson, and then started the secondary encryption of the printhead. For this encryption, EPSON has adopted a more rigorous algorithm.

A variety of printheads, including the Epson DX5, DX7 and 5113 printheads, have been added to the secondary code. In view of the more rigorous encryption algorithm, in the strict sense, it is impossible to achieve a real crack for the secondary encryption Epson print head.

So why are there still wide-format photo printers that use secondary encryption printheads on the market? The situation is this:

print headDomestic wide-format photo printer manufacturers have adopted a compromise method in order to use secondary encryption print heads. One-half of the eight rows of nozzles of the printhead, that is, four rows of orifices, and the other four rows of orifices compensate for the defects produced by the first four rows of orifices. Simply put, only eight columns of eight rows of nozzles are working really, and the other four columns are doing nothing.

The use of a print head in this way results in a reduction in print speed and ink throughput by half, which is only one-half of the normal case.

In order to make up for the above defects, the manufacturer has adopted an extreme practice of increasing the driving voltage and the ignition frequency, thereby increasing the workload of the print head. As a result, there is a possibility that the life of the print head is severely shortened. According to estimates, in the current environment, the secondary encryption printhead has a life of only a quarter of the original printhead.

Recently, some users complained that his secondary encrypted printing head was broken in 2 or 3 months, which is why.

In view of this situation, when reminding customers to purchase a wide-format photo printer, be sure to have a clear understanding of the print head situation.

90% of people don’t know how to clean the print head of uv flatbed printer

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.

print head

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.

print head

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.

Why is the price of the uv printer head so expensive?

It is well known that UV printers are expensive, and the print head is the core part of the UV flatbed printer, and its price is also high. Whether it is a new user or an old user, the first reaction to the printhead is “cheap”, so why is the price of the UV printer head so expensive? What factors are causing it?

printer head

Technical monopoly
The technology of the print head has been monopolized by the United Kingdom and Japan, and the corresponding technology has been patented. So far, there is no technical strength in China to develop and produce print heads for UV printers, resulting in no market bargaining power, and can only actively accept the price offered by the other party.

UV printer agent
If the UV printer nozzle manufacturer develops the market in China and needs a lot of manpower, material resources and financial resources, it is necessary to choose a company with relatively small domestic influence as its agent. But the agent can never work in white, so you need to insert the corresponding cost when you proxy the print head.

Manufacturers earn profits
Many manufacturers will add a certain fee to the printer head, which is beyond doubt. Few manufacturers will pay for the final door-to-door maintenance costs for the nozzles they sell.

Pay taxes
1. Customs must pay customs duties.
2. Logistics, warehousing and other expenses.

printer head