How do I lock and unlock the ink valve on the HP DeskJet GT 5820?
To unlock the ink valve before printing, turn it to the left to the vertical position. To lock it before moving or tilting the printer, turn it to the right to the horizontal position. Always ensure the ink valve is unlocked when printing and locked when transporting the printer to prevent ink leakage. (Page 6)
From the official HP Impresora Todo EN Uno HP Deskjet GT Serie 5820 manual, page 6
Have a follow-up question?
Answers from the official manual.
Common questions