Cleaning printer printheads
TIL - when looking how to clean printer heads - that some printers can do it automatically! Can be started both through the OS GUI or the printer itself (if it has buttons and stuff).
Wikihow (lol) as the first result in Google gave me enough to learn about automatic cleaning being a thing: How to Clean Print Heads: Clogged & Dried Up Print Heads; How to Clean a Printhead for Better Ink Efficiency < Tech Takes - HP.com Singapore +
Nel mezzo del deserto posso dire tutto quello che voglio.