15.Load ink and clean printhead

Turn on the printer power, turn on the white ink cycle knob, adjust to the maximum, 

wait 10 minutes, and then adjust to 50%.

 As shown ：

After all the ink tanks are filled with ink, then directly click "Load ink" in the software to 

fill the ink for 30s in twice, and then clean it several times. 

Finally, you can print the nozzle test