It probably means that the overflow tank is full, This usually consists of a felt pad that soaks up the surplus ink when the nozzles are cleaned. If you can open the unit it should be possible to replace the pad/s yourself.
Best phone camera 2017
Stunning new film posters by Hattie Stewart, Joe Cruz & more
iPad Pro 10.5in (2017) review
28 astuces pour profiter au mieux de votre iPhone