Review on Tonha Printhead Cleaner Kit - Inkjet Printer Printhead Cleaning Kit Compatible with Canon/Brother/Epson/HP 8600 5520 4620 6520 6600 6700 6968 6978 8610 + HP Printer 922 Pro100 MX922 + Canon Printer (100ML) by Aaron Carney

My printer has not been used for almost 2 years and the black ink has stopped working. I decided to try this. I used up most of the bottle trying to clean the black ink head but it finally worked! No printing on the first day after cleaning. After that I used my printer settings to clean the cartridge and still nothing. So I decided I needed a new printer and let it sit for a few days. Somehow yesterday I was told to try it (maybe it takes time?) and today it honestly printed 50 pages! I don't know why it happened that way, but if you try and it doesn't work, immediately let it dry for a few days before trying again and it should work fine!