What do I learn in this video?

I learn how to calibrate the wallPen using the nozzle test (E2-Calibration): place the test sheet, purge the print head, and adjust the upward, downward and horizontal settings in the app.

Why is this step important?

Calibration ensures all colors align vertically and horizontally, preventing gaps and producing accurate, even prints.

What should I remember?

Warm the print head, purge to remove air, use cyan as the reference, set the start point with the laser on the paper edge, and iterate calibration passes until the nozzle test looks correct.