- 7 reasons why the image output has color difference
1. Paste, caused by frequent cleaning of the print head
Fuzz ink breakage and other faults need to clean the print head frequently, which will cause color differences and discontinuous effects on the screen. Because the print head has different results before and after cleaning, we recommend that you check the working status of the digital printing machine before digital printing to ensure that it is correct before production. Second, you need to buy quality when selecting ink Excellent, guaranteed quality ink.
2, the quality of the media
Inferior media have poor ink absorption (unevenness), which leads to uneven ink staining, and the image is prone to chromatic aberration.
3.The ink supply system is unstable (especially the ink cartridge level)
The level of the ink cartridge liquid level greatly affects the ink supply power of the print head and directly affects the printing effect. When the liquid level is high, the color is darker than when the liquid level is low, which causes the color difference of the screen.
4. Have done other processing during printing
Other processing may be changing the media (largely spliced picture) during printing, replacing ink or refilling different types of inks, or the pause time is too long or the frequency of pauses is too frequent during printing. The above operations may cause discontinuous pictures and chromatic aberration in the image output.
In order to avoid the above situation, we need to check whether the media and ink are sufficient before printing. If problems are found, we need to replenish them in time. It should be noted that for digital printing machines equipped with heating and drying devices, the pause time is too long. The color difference of several PASS images printed before and after the pause is very different.
5, the print head working voltage is unstable or change the voltage during printing
The working voltage of the print head directly affects the ejection strength of the ink droplets (especially the piezoelectric print head), and from the overall visual effect, there will be different shades and different sharpness effects. Therefore, before the printout, the printhead voltage should be set normally (usually adjusted in software), and the input terminal of the printer should be connected with a voltage stabilization device.
6, the negative pressure is unstable
For printers that use the negative pressure principle to supply ink, the negative pressure is unstable and directly affects the ink supply pressure of the print head, which in turn affects the inkjet effect of the print head.
7, picture stitching
The same picture, different machines or printing under different conditions (mainly for large screens that need to be stitched). Even different printers of the same model, the printing effect (color difference) has different differences. On the whole, there is color difference. Therefore, if there is a picture that needs to be stitched, try to use the same printer to complete the printing on the same conditions to maintain the overall effect and continuity;
The above 7 points are the 7 reasons for the color difference of the image output on 6head Fedar printer. Do you understand? The daily production of digital printing needs a lot of attention especially for 250Sqm/H high speed sublimation printer, the ink used, attention to quality, and standardized operation.
- How to maintain Fedar textile printing machine?
As a printing machine, the daily maintenance for Fedar textile printer is very important. Effective maintenance techniques can extend its service life and bring more economic benefits to the manufacturers.
Today, Fedar printer would like to share with you some of the maintenance techniques for textile digital printing machine.
1.Clean nozzles and cartridges regularly.
Because the ink may precipitate if it is left for too long, the nozzle and ink of the digital printing machine should be cleaned regularly to avoid blocking of ink channels. In this way, its printing quality can also be effectively guaranteed.
2.Control room temperature and humidity.
Generally speaking, in the range of 40% - 60% relative humidity, the static electricity on the printing material is more easily transferred and removed, which will not affect the ink drop on the nozzle of the printing machine, thus ensuring the printing accuracy. It is suggested to open window regularly to ensure good ventilation.
3.Do not use ink with too high viscosity.
Although the weight of ink drops is good to reduce the statics, the viscosity is too large to bring harm to the printhead of the digital printing machine.
4.Check flash and wiper regularly.
Check the cleaning condition of flash and wiper at least once a week. If there is any wool and other sundries, please use tweezers or tissue paper to remove the sundries.
5.Do a good job in dust prevention.
Do a good job of dust prevention in the room. Do not put it together with the machine prone to smoke and dust, so as to prevent the nozzle from blocking.
We believe with the above suggestions,Fedar textile printing machine will bring you more benefit and expand business very fast.
- What should I do when the picture is misaligned when printing?
Fedar digital advertising printing machine is the same as our daily office printer. It can achieve a highly restored image in the printout of advertising printing. If the user has no problem in operation and there is a problem of print misalignment, the customer can use the following to find the source of the problem and solve it.
1.Check if the car where the printhead is located is not moving smoothly. The movement of the photo car is the key to controlling the printhead to achieve precise positioning of the inkjet. If there is too much resistance during the movement process, which will cause jams, etc., it will cause the printhead disorderly and the printed image will be misaligned.At this time, it is necessary to check whether the gaskets, copper sleeves, etc. of the car are seriously worn. After cleaning, remember to add a little lubricating oil to solve it satisfactorily.
2.Check whether the encoder strip of the digital advertising printing machine is the same as that under normal working conditions. Because the encoder strip is the key to positioning the image and cannot tolerate a little bit of dirt, if it is detected, it needs to be cleaned, especially in the daily use of printing machines, it is susceptible to the influence of space dust and other inks, which will affect the use of encoder strip.Therefore, the user can clean the encoder strip and then perform the print test. If the encoder strip is defective, it can also be replaced with a new one, and the cost is also cheap.
3.Two-way calibration.The first major thing after buying a digital advertising printing machine is to calibrate the working state of it.Only when the working state is set can it be taken efficiently, without the problems caused by other non-quality failure.
- what should I do if the grain of the print is very large？
When using a heat transfer printing machine, users sometimes encounter the problem that the photo machine prints too large grain, which leads to poor print quality. Fedar heat transfer printing has organized several reasons that lead to large grains.Users can solve it according to the actual situation.
1. The print is too grainy may be caused by blockage of the printhead. The solution is to clean the printhead by drawing ink from the machine.
2. If there are large grains in a certain position in the print, this may be caused by the uneven printing platform. The solution is to adjust the printing platform with special tools.
3. The picture has low pixels, which will cause the output print to have large grains. The solution is to replace the high-resolution and high-pixel picture.
4. Poor print media quality, rough material and weak ink absorption will also cause the heat transfer printing machine to print large grains. The solution is to change to a better print material.
5. The problem of printhead calibration, the solution is to use the machine software to recalibrate the parameters of the printhead.
6. The problem of printer encoder strip, the solution is to clean the encoder strip, wipe it with a cotton swab dipped in alcohol or pure water. If it is seriously damaged, consider replacing it with a new one.
7. Driver software problem.The solution is to check whether the driver software is the latest version. If it is not the latest version, it is recommended to download and install the latest version.
- What should I do if I add the wrong ink to the printing machine?
We all know that different printers need to use different type ink, because when oil-based inks and water-based inks are mixed together, there may be some losses to the printhead. If this happens, how can we remedy it?
1.If the ink has just been added to the ink cartridge and has not yet entered the ink supply ink path, then you only need to replace the ink cartridge with a new one. It is best not to continue to use the cartridge after cleaning it, because it is likely that ink remains on the ink cartridge wall and bottom. It is safest to replace a new ink cartridge.
2.If the ink has entered the ink supply ink path, the entire ink path needs to be cleaned and the corresponding damper should be replaced at the same time. If it is not cleaned, the entire ink supply system needs to be replaced.
3.If the cleaning function is turned on, then the ink has entered the print head. At this time, the print head must be removed immediately, and it should be cleaned with the print head cleaning fluid to make sure the ink should be completely discharged as much as possible.
4.If the printhead of the printer is seriously blocked, find a professional technician to deal with it.
- What is the cause of the print pause and the solution?
The transfer paper printer machine may be paused during use,the following is the phenomenon:
(1) The printer's print head has a long pause at both ends;
(2) After sending the print command, during the printout of the photo machine, the carriage of the print head will move slowly and quickly, and it is unstable. A picture can be faster in the second stage, and the first stage is very slow;
(3) After the printer has been printing continuously for a long time, the printer will noticeably print slowly.
Causes and solutions:
1,use the exclusion method to check. The first is the problem of the computer connected to the printer. For example, infected with computer malicious viruses, Trojan horse programs, etc., causing the computer operating system to run slowly, slow data transmission to the computer's Montenegrin software and make the photo machine appear to be stuck; At this time, we can replace the computer to test and print to eliminate the printing stall caused by computer problems. Or reinstall the computer operating system, update Montenegrin related software to test and solve.
2,Computer network card compatibility issues. Some users use computer network cards that have compatibility issues. For example, some computer motherboards have network adapter chips with compatibility issues that can cause slow transmission during network transfers.Please do not use an external USB network card to connect. According to the technical staff's test of the external USB network card, the printer will freeze. For desktop computers, if you want to use an external network card, you can use an external PCI8139 network card.
3,The network port printer is connected to the computer. It is recommended that the computer be directly connected to the printing machine. Use a normal network cable to connect it. It is recommended that the network cable is not too long. If you use a router or other network switching equipment to connect, it will also affect the data transmission if the network is not good.
4,Problems with the data control board on the printing machine,for example, the chip on the data control motherboard is hot or the memory of a certain chip's electronic components is bad will also affect the print. At this time, you need to repair the board or replace the data control board.
- What should we pay attention to when using Fedar printer in winter
Printing result easy to be affected by temperature,especially in winter.Sublimation printer is a device that needed to be worked whole year. How to guarantee printing result is a problem what customers have to face,So what should we pay attention to when using Fedar printer in Winter.
The sublimation ink is the most affected in low temperature. Its liquid and sensitive to temperature. When temperature too low,ink viscosity will be changed. Therefore its necessary to pay special attention on storage temperature,its better to stock it under 15-30℃ in winter.
As we known,In winter not only low temperature,but also the air is very dry,its easy to lead to static electricity.Static electricity have big affect on device,both printing accuracy and electronic component will be damaged.Thus,we suggest to connect ground wire to Fedar printer. And its better to keep humidity between 35%-65%.
- WHAT ADVANTAGES OF EPSON 4720 (EPS3200) HEAD ?
Higher Resolution:Because The smallest droplet of EPS3200 (4720) is only 2.5PL,which is significantly lower than the 7PL of Ricoh GEN5. Therefore, the printing output of EPS3200 (4720) has higher resolution, smaller graininess and more delicate performance.
Faster Speed:The speed of EPS3200 (4720) is obviously faster than that of the Ricoh Gen5 . For example, if customer want to print full color(CMYK) with 4 printheads EPS3200 (4720) or with 4pcs of Gen 5, both with 6 pass . The EPS3200 (4720) head speed is about 30-40 Sqm/H, but the GEN5 is only 20-28 Sqm/H
Lower Maintance Cost:The price of EPS3200 (4720) is much cheaper, it’s cost only about 15% of the Ricoh GEN5, so the cost of the printhead is very low. Moreover, since the UV ink price of the EPS3200 (4720) is also lower than that of the GEN5, the less csot of the board system , so the total cost of the whole machine is very low. For customers, low cost means more markets share and more profits.