Bn20 blocking up quickly
I recently bought a second hand bn20 knowing it wasn't printing.
After a lot of cleaning and head washes it printed like a dream.
I printed out a few things and all fine. Left it for 2 days and often heard the machine fire up and quick clean. I thought all was good. Went to print again and all it wanted to do is black smudge. More headcleans and now blue lines. Help please. Anyone know what's going on