China UV Flatbed Printer Manufacturer

Asked Questions FAQ

Fault 1: Blank area appears in the printed product

Countermeasures: Check whether the job design contains the problem of white shrinkage, re-calibrate the white, check the calibration parameters and the height of the nozzle base plate, pay attention to the setting of white ink temperature and voltage, and prevent the ink-jet from being straight and the amount of ink is too much.

Fault 2: Left and right ghosting and double line phenomenon in printed images

Solution: Adjust the printing parameters to the appropriate state (such as single and double direction Settings), ensure that the horizontal calibration parameters are accurate, check whether the spacing between the nozzle and the printing material is moderate, avoid excessive printing deviation, and recalibrate the X-axis motion coefficient to optimize the motion accuracy.

Fault 3: Inaccurate white overprint

Treatment: Re-examine and adjust the calibration parameters to ensure that the white and color nozzle calibration is accurate, and check the distance between the nozzle base plate and the printing medium to ensure the overprint quality.

Fault 4: Poor ink adhesion

Solution: Clean the surface of the medium, use alcohol to remove impurities, for specific materials such as PP, you can try to coat special materials to enhance adhesion; For metal or glass, apply special coatings; Enhance the UV lamp irradiation intensity and improve the adhesion by adjusting the light mode.

Fault 5: Edge jet flying

Solution: Eliminate static electricity in the media, adjust the humidity of the operating environment, and check and adjust the sprinkler voltage to a proper range.

Fault 6: Print color deviation is significant

Optimization method: First, select an appropriate configuration file and fine-tune RIP parameters (including print passes, resolution, etc.). Then, review and adjust the print mode parameters, such as speed, one-way, pass, light mode, and white ink parameters.

Fault 7: Print pattern color offset

Repair steps: First, make sure that the secondary ink cartridge is sufficient. Secondly, check the amount of ink in the main cartridge and replenish it in time. Then, respond to the software ink feed prompt to ensure that you choose to continue the ink supply. Finally, the ink shortage state is simulated, the ink pump function is tested, the nozzle is cleaned regularly, and the negative pressure is adjusted to the appropriate range.

Fault 8: Front and rear double shadow and double line problem

Adjustment strategy: Check calibration parameters (such as step, Y deviation) to ensure accuracy; Check whether the data transfer is stable, reinsert the USB port, and restart the device and software to rectify the data transfer exception.

Fault 9: Intermittent ink during printing

Solution: First, adjust the negative pressure value to the ideal state. Clean the ink on the surface of the nozzle, and wipe it carefully after pressing the ink. Then, exhaust the nozzle and replace the filter to maintain the ink supply system.

Precautions For Use

When using UV flatbed printers, it is important to ensure the suitability of the operating environment and the quality of the ink. First of all, the choice of certified, market reputation good factory inks, especially those with a high degree of versatility, is a wise choice in the current industry, because most ink performance differences are not too great.

Regarding machine placement, careful consideration is required:

Environmental factors :

Temperature and humidity control : maintain the room temperature between 20-25 ° C, humidity is not less than 40%, to prevent high temperature accelerated ink condensation, blocking the nozzle, while avoiding the dry environment caused by the nozzle dry.
Light and shading : UV ink is sensitive to light, so the machine should be away from doors and Windows, especially direct sunlight, to ensure that the light in the printing room is soft and reduce the ink solidification caused by light.
Air circulation and dust prevention : avoid strong wind blowing directly to prevent rapid volatilization of ink; At the same time, keep the environment clean, reduce dust into the ink system, and prevent clogging.
Temperature adaptability : in winter, the ink should be prevented from being sticky due to low temperature, affecting fluency, and heating measures should be taken if necessary.

Negative pressure management :

Adjust the ink level height according to the ink sac type to ensure that the negative pressure system works properly, neither too large nor too small to avoid poor ink supply or dripping ink.

When shut down, the correct protection of the print head is the key to extending its life :

Adjust the ink level height according to the ink sac type to ensure that the negative pressure system works properly, neither too large nor too small to avoid poor ink supply or dripping ink.

Routine maintenance :

Check the status of the nozzle every day, once you find signs of blockage, immediately gently clean, avoid excessive force pumping ink, so as not to damage the nozzle. Correct pumping techniques, such as slowly drawing a small amount of ink after standing, and then flash spray test, can effectively extend the service life of the nozzle.In summary, pay attention to ink selection, environmental control, correct maintenance, especially to avoid strong light, dry, dust and improper operation, is the key to ensure the long-term and stable operation of UV flatbed printer nozzle.

Precautions For Use

Shandong Senna Printing Group Co., LTD., as the industry leader, we are proud to provide excellent quality UV flatbed printers, and supporting with excellent after-sales service system, we sincerely invite you to call or visit. We know that to choose us is to choose trust and peace of mind. Our after-sales service commitment is as follows:

Comprehensive service guarantee:

New machine purchase to enjoy one-stop on-site installation, commissioning, training services, to ensure that you worry about getting started.
Customers are encouraged to organize operators to participate in professional training, covering software operation, maintenance skills and troubleshooting to help efficient production.
The whole machine (except consumable products and ink supply system) enjoys a one-year warranty, and the quality is guaranteed.
During the warranty period, no matter maintenance or replacement of parts, it is free and provides back to the factory or remote support.
Outside the warranty period, replacement parts are provided at cost price, transparent and fair.
Regular return visit mechanism to ensure that your equipment is always in top condition.

Service commitment upgrade:

Adhering to the “fast, accurate, meticulous, intimate” service concept.
We are committed to winning your every satisfaction through excellent service.
Promise to respond to repair needs within four hours, quickly solve your worries.
Shandong Senna Printing Group Co., LTD., based on quality and escort service, look forward to creating brilliant with you!