How to Maintain The DTF Printer?

Posted by Umair Saleem
3
Jan 20, 2024
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DTF printer is a very precise machine, assembled by a number of high-quality parts, DTF printing can not be separated from the cooperation of these parts. Once a part of the problem, the printer can not work properly, or the whole DTF printer scrap, can not continue to use.

 

DTF printhead maintenance

Customers who have used inkjet printers know that the size of the ink particles as well as the ink's own characteristics may appear precipitation, especially in the case of prolonged non-use, the probability of clogging the nozzle will be great.

Now DTF printers as well as the development of a period of time, in addition to the initial white ink stirring circulation system, measures to prevent white ink precipitation. Now a lot of new features have been added to further stop the white ink from settling. First of all, the printhead has been improved with a nozzle compensation function that allows the nozzle to eject larger sized ink droplets to fill in the missing areas when there are discontinuous lines and blank areas, solving the problem of missed prints. This feature greatly solves the phenomenon of being unable to terminate the batch printing, which contributes to fast printing and efficient operation. The printhead can be cleaned in time after this print job is completed.

In addition, at present, in some of the environments involving printing outdoors or in low temperatures without good room temperature control, still effectively prevent the ink from settling or freezing, there is an ink capsule heating and printhead heating function. It can effectively ensure the fluidity of the ink.

In addition, if you are still worried about the ink clogging the printer nozzle, the current Sublistar has just launched a precipitation-free ink, very practical. If used with the above features, the DTF printing process will be very stable and long-lasting.

Of course, it does not mean that if you do the above, you can ensure that the printer nozzle will not be clogged. Still need to use moisturizer and cleaning fluid regularly, on the one hand, to ensure the cleanliness of the printhead, on the other hand, maintenance done well, you can effectively extend the life of the printhead. Reduce your cost of replacing the printhead.


Heating problem in DTF printing process

Generally speaking, after the DTF printing machine has been used for a period of time, the DTF transfer film may appear not to heat up normally. The main reason for this is that it has been used for too long and without regular maintenance. Thermal spraying machine does not heat up generally one is a circuit fault, the second is an electrical fault. The first is caused by a broken circuit, which is mainly caused by the negligence of the supplier.

The other is electrical failure, such as temperature control failure, can not control, or relay failure, can not be turned on. There will be more cases of the latter. Nowadays, many manufacturers directly connect the relay to the temperature control to save cost. Such relays can easily burn out as they usually shorten the life of the electromagnetic relay. When it happens, the damage will be huge. Due to the high power of the machine, it is better to set up the relay and temperature control method separately. In addition, it facilitates temperature control. If the temperature control unit fails outright, it will need to be replaced at a cost.

So in case of the above mentioned problems, the pressure management needs to be adjusted in time. When the transmission time is reached, the buzzer stops silently or noiselessly. The microswitch needs to be checked for medium contacts. If not, adjust it to the right position and heat it for 15 minutes. Clockwise is to increase the working pressure and counterclockwise is to reduce it. When the temperature reaches a different temperature set by yourself, the heating system is turned off and the machine can start working. If you still do not know how to operate it, you can contact the technical after-sales department for remote guidance.

DTF Printer Silent Guide

Maintenance of the DTF Printer Silent Guide is necessary because the guide is lubricated. And keep clean, conducive to providing a more silent operating environment.DTF printer guide rail maintenance is a step-by-step process. First, after starting the white ink thermal transfer printer power supply, let the cart go back and forth several times, the dirt inside the guide rail slider will remain on the guide rail. Repeat this several times, then wipe off the dirt with a paper towel or rag. Secondly, the DTF printer should clean and maintain the guide rail after printing every day. Use a clean cloth or lint-free paper towel dipped in alcohol to wipe off the dirt on the guide rail, and then use a clean cloth or paper towel dipped in a little sewing machine oil to wipe the guide rail.

 

DTF Printer Lenticular Bar

The lenticular strip is a piece of transparent film behind the small frame, which mainly plays the role of positioning. Dirty lenticular will appear heavy shadow, misalignment and other problems, it is recommended to clean the lenticular strip regularly. When cleaning, gently wipe with water, do not use brute force, and scrub both sides.

 

Cleaning the encoder bar

The encoder bar is a thin plastic strip located behind the print head. The encoder bar can read the position of the nozzles through sensors, which can make the ink jet more accurate and improve printing accuracy and printing speed. If the encoder strip is dirty or covered with ink mist or if the sensor is stained with ink, the sensor will not be able to read the correct data. Therefore, it is important to clean the strip at least once a week.

Cleaning with a lint-free cloth or 97% alcohol wipe will help remove ink mist from the sensor.

 

In general, in addition to the maintenance issues specifically described above, there are considerations for preventing air bubbles from entering the printhead, preventing ink bleed-through, printing test strips each time the printer is turned off, and preferably ensuring that the temperature and humidity of the printer are within parameters. If all of them are done with regular maintenance and inspection and repair, then the DTF printer will work very well. So, make sure you don't reduce the maintenance time, or you may get half the results later on.

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