You can continue to use the product even if one or more ink tanks are not filled all the way. However, for the most accurate ink level monitoring, fill all the ink tanks up to the top line.
 power light is on, but not
flashing.
 power light is on, but not
flashing. start button.
 start button. start button when you are done to
reset the ink levels. .
 start button when you are done to
reset the ink levels. .
As a precaution, perform regular visual inspections of the ink tanks to ensure ink levels do no fall below the lower line. Continued use of the product when the ink level is below the lower line on the tank could damage the product.