If an error appears on the screen

Support Code: 1470/1471

The print head is not installed correctly.

Install the print head
Push down the joint button completely

Support Code: 1474

The print heads are not installed correctly. Close the ink valve lever, and swap the left and right print heads.

Support Code: 1890

The protective materials are not removed.

Support Code: 5200

Ink system preparation was not completed successfully. Press the ON button to restart the printer, and then see "4 Pouring Ink".