"How do I fix a printer head"に関する回答I spent two days trying to fix my HP 6978 after getting flagged with problem with the printhead 0x0 error. I scoured the internet with no such luck given on how to fix it that worked. Today I got a 3ml syringe and a 10ml. I filled a bowl with hot water and made a make shift attachment for the syringe to create pressure on the printhead with a straw. it was an incredibly messy job. The first few pages I printed were complete water. I turn the printer off and then I turned it back on. The error was gone! I was able to run the clean printer head. I ran it twice and my printer works.