Hello forum people, I hope everyone is well. I'm having problems with some clogged Epson printheads, especially the fa04000, I wanted to hear from you, With you experience, what's the best way to unclog these printheads?
Checking some forum threads, I found the formula for pharmacist's cleaning solution. But what ammonia should I use? Ammonium hydroxide, quaternary ammonium, or some other?