So you can not use the eco tank for 6 months and it will just work when you need to print again? That is why I like laser printers, I don't have to worry about head cleaning or clogged nozzles.
Sometimes I don’t even replace the toner when it complains; I just take toner out shake it and it keeps working (a bit lighter than usual)
So yeah, black and white laser multi-function and online printing services for me.
I wish I'd bought a laser