Turn on the power switch, wait for the device to finish loading and enter the main interface.
Open the lower compartment door, and pour the original ink and solvent into their corresponding tanks separately (avoid overflow).
Main Interface → Machine Settings → Ink System Operations → Clean Printhead Throat Pipe (wait 1 minute and then close).
Check for ink leakage in the ink system and printhead, and ink accumulation in the return pipe (clean and dry if any).
Tap “Start Ink Line” on the main interface, select normal or fast ink supply mode (wait 2–3 minutes to complete).
Confirm there are no fault warnings on the main screen and “Printhead Ready” is displayed; you can now edit print content.