I've got a HP deskjet 3524.
My printer has not printed any black ink for soem time now. I checked the cardridge, which still has enough ink (it comes out easily if I tap the sponge) and cleaned the inkhead with the automatic procedure several times, waiting at least 30 minutes in between, as the HP site suggested. That didn't do anything, so I mixed some cleaning alcohol (ketonatus 70%) with water (50-50) and soaked the printheads in there for a few minutes. After drying them I put them...
black ink doesn't work
My printer has not printed any black ink for soem time now. I checked the cardridge, which still has enough ink (it comes out easily if I tap the sponge) and cleaned the inkhead with the automatic procedure several times, waiting at least 30 minutes in between, as the HP site suggested. That didn't do anything, so I mixed some cleaning alcohol (ketonatus 70%) with water (50-50) and soaked the printheads in there for a few minutes. After drying them I put them...
black ink doesn't work