The printheads are extremely durable and do not need to be replaced every time an ink cartridge is replaced. They are independent of the ink cartridges and will continue giving excellent image quality results even if the ink cartridges are low in ink.

To maintain optimum print quality, the printheads are automatically tested at regular intervals, and automatically serviced if necessary. See preparing printheads.

If you notice a decline in print quality, see the problem is ...