Ink tank if you have to go non laser mode. I own like 2 HP 5820 ink tank printers and had to change a part inside once. Other than that can do other than count

Ink tank if you have to go non laser mode. I own like 2 HP 5820 ink tank printers and had to change a part inside once. Other than that can do other than counting pages but 3 years they havent done that. Not that I update my printers