It is unavoidable that problems such as blank printing, ink cracking, and UV DTF printer light pattern will arise during normal operation of UV printers. Each issue will have an impact on user efficiency and expense. How do we address these issues? Is it referred to a professional maintenance department for upkeep? In truth, we can address some minor issues on our own. The following is a brief summary of UV DTF common problems and remedies!
Fault 1 Blank printing
During printing, the UV printer does not produce ink and prints blank. The majority of these failures are caused by nozzle blockage or ink cartridge exhaustion.
If the ink has run out, this is a good remedy. Simply replace the ink cartridge and refill it with new ink. If there is still a lot of ink but a blank print, the nozzle may be blocked and has to be cleaned (please pay attention to “print our bank” for more correct cleaning steps). If the nozzle still fails after cleaning, it is vital to determine whether the nozzle is broken. As a result, it is required to discuss with the manufacturer.
Fault 2 UV printer ink failure
Some nozzles may not produce ink throughout the pattern printing process. The nozzle channel is blocked, the nozzle’s working voltage is incorrectly set, the ink bag is blocked, and the ink problem and negative pressure are incorrectly adjusted, all of which will result in ink interruption.
Solution: press the ink, clean the spray hole with cleaning solution, adjust the nozzle’s working voltage, soak and ultrasonic clean the nozzle, replace high-quality ink, and set the suitable negative pressure value.
Fault 3 Pattern is not bright
The faint color of the pattern printed by the UV printer may be caused by dry ink, the incorrect ink model, the air inlet in the ink supply pipe, the printer’s high working temperature, and nozzle blockage. If it’s an ink issue, simply replace the ink. When the ink supply pipe’s inlet, it is important to exhaust the air before operating. The UV printer’s working time is too lengthy and the working temperature is too high, we must stop working for a while and wait for the temperature to drop.
Fault 4 Ink runs out after the printer has finished printing.
This could be due to faulty coating, direct coating without cleaning the printing material, or printing before the coating has completely dried.
Solution: To avoid ink falling off, clean the printing material before spraying or begin printing once the coating has completely dried.
Fault 5 UV DTF Printed Image Tilted
Phenomenon: a random and unpainted spray appears on the image.
Causes include an inkjet data transfer processing error, a malfunctioning trolley board, a loose or faulty data connection, an optical fiber fault, a PCI card issue, and an image processing difficulty.
Solution: arrange the sprinkler heads, test each one individually, remove the problematic sprinkler heads, change the data line (sprinkler data line or trolley board
data line), replace the trolley board/optical fiber/PCI card, and reload the image for processing.
Fault 6 The universal UV DTF printer nozzle (trolley) is immobile.
The machine is disconnected; the nozzle (trolley) servo motor loses the Internet to the machine.Inkjet printing not only seeks higher printing speeds, but also better color. High-quality UV printing has very strict criteria for the operation of UV printers, inkjet printers, consumables, media, and the working environment utilized by UV printers, in addition to selecting high-performance inkjet equipment. How can you fix the inkjet printing difficulty as a UV printer user? How to keep the UV printer running in damp conditions.
For example, in the working environment of a UV DTF printer, the effect of damp weather on UV printer spray painting productivity. There will be noticeable humidity in the workspace where the UV DTF printer is positioned. Positive printing of UV printing and inkjet printing will have a significant impact in such a humid climate. The weather is too rainy, and the photos printed are frequently sprayed. The UV DTF ink dries slowly, has weak adherence, and the color fades easily.
However, this condition is produced not by a UV DTF printer ink problem, nor is the UV DTF printing defective, but by the UV printer’s operating environment. The weather is too damp, and the spray paint hue is too dark. If the film is coated, it will easily fall off and will not attach to the medium, and the ink on the back glue will take a long time to cure. Weather, humidity, and temperature all have a significant impact on the machine’s circuit board. Because of the accumulated water on the board, the board is usually short-circuited and burned when it is first starting up.
It is clear that the weather is changing from cold to warm in the UV printer’s working space, please close all doors and windows immediately, and do not open the exhaust fan as much as possible to avoid pumping the humid air outside into the room. Even if an air conditioner is installed in the UV printer’s working environment, you can turn it on for dehumidification and utilize the dehumidification or refrigeration equipment to dehumidify the room. If the moisture regain is excessive, it is advised to use a dehumidifier, which will have a more effective effect. Remember, especially while turning on the air conditioner, to close the doors and windows to aid dehumidification.
Moisture-proof storage of appropriate printing medium materials is required. Printing media absorbs moisture easily, and damp photo materials easily cause ink dispersal. As a result, after each use, the photo materials must be returned to their original packaging while being careful not to touch the ground or the wall. If you don’t have a packing bag, you can wrap and seal it with the bottom of the membrane.