Any kind of machinery will have such and other problems during use, and digital printing machines are no exception. Several problems with general digital printing machines are common. Therefore, it is necessary to understand the cause of its occurrence and the solution, in order to solve the problem in a timely manner without affecting the progress of the work.
The causes and solutions of several common problems in digital printing machines
1. There are obvious broken lines in the printed image
Reason: Caused by the broken needle of the ink head, as long as one ink hole of the pressure point nozzle is blocked, it may cause broken line streaks in the image. If there are many nozzle holes blocked, it will make the broken line streaks become more serious.
Solution: Clean the ink head and clean out the clogged nozzle
a. Miscellaneous in the pipeline
b. There are impurities in the ink sac Clean the ink sac pipeline
c. Ink is contaminated
d. There is a problem with the ink quality Replace the ink
e. Environmental problems, the temperature is too low Install air conditioners to improve the working environment temperature
f. The print head is not in good condition Replace the print head
g. The surface of the nozzle is too dirty and has fluff Clean the surface of the nozzle
h. The scraper and ink stack are too dirty Clean the scraper, ink sac, and ink stack
K. There is an air duct in the ink sac to draw out the air in the ink sac
2. There are overprinted dark stripes in the printed image
Reasons: 1. The ink head is out of position, the single ink head is obliquely out of position, and the positions of the two ink heads are not aligned.
2. The paper feeder clamps the paper too tightly, resulting in poor paper feeding, causing great resistance to the Y-axis stepping motor, and failing to reach the standard stepping value.
3. There are differences in the stepping amount when paper of different thickness is fed.
Solution: 1. To calibrate the nozzle, please contact professional technicians.
2. Use manual paper loading to reduce resistance.
3. Adjust the paper step in the machine to set the CALIBRATION menu, increase or decrease the step value.
a. The nozzle is disconnected, clean the nozzle
b. The amount of printing ink is not enough, increase the amount of ink output
c. The paper feeder is too tight, loosen the paper feeder
3. During the printing process, the ink car stops for a few seconds at both ends of the image
Reasons: 1. The computing speed of the computer cannot keep up with the transmission speed and printing speed.
2. Using the printing port for transmission, the transmission speed cannot keep up with the printing speed when the image is large.
Solution: 1. Change to a faster computer, generally a Pentium 4 1.7G or higher computer is required.
2. Using 100M network cable for transmission, the network transmission speed is faster than the printing port transmission speed.
a. The machine crashes, ground the machine shell
b. The computer crashes and restarts the computer
4. Drip ink and shake ink
Solution:
a. The temperature is too low, raise the ambient temperature
b. The nozzle is not cleaned clean the nozzle again
c. Broken pipe or ink sac Replace the pipe or ink sac
d. Too much ink is added, and the amount of ink added does not exceed the ink ratio
Five. The ink head does not come out of the ink
Solution:
c. There is no ink in the ink sac (inking) pumping or adding ink
d. The print head data line is not plugged in. Re-insert the print head data line
6. Ink blocking treatment
Solution:
1. Gradual ink breakage during drawing: This kind of ink breakage is caused by the ink sac and nozzle. The reason may be that the ink sac is dirty and the nozzle is aging. At this time, the ink sac and nozzle can be cleaned. If they are not cleaned, they need to be replaced. 2. The ink breaks suddenly during the printing process, and the ink breaks are serious. If you print a solid-color base map, it usually breaks very badly at 5-10cm. This kind of ink break is mostly caused by the ink, and most of the ink is replaced.
The above are some common problems and solutions of thermal transfer printers that REHOW Machinery introduced to you. I hope it can help you. In the process of using the printer, it is necessary to do a good job of maintenance and care to minimize the occurrence of problems. More information about digital color printing machine: click here www.szrehow.com
Post time: May-16-2023
