How do I know when an ink tank needs to be refilled?
Check Ink Levels
To confirm the actual ink remaining, visually check the ink levels in the product’s ink tanks. Make sure the ink levels are above the lower lines on the ink tanks.
If the ink level is below the lower line on the ink tank, fill it to the upper line on the ink tank. Continued use of the product when the ink level is below the lower line on the tank could damage the product.
Ink Safety Precautions
Refilling the Ink Tanks