Review on 🖨️ Epson Printer Printhead Hospital Cleaner - 5oz 150ml: Boost Print Quality & Performance by Matt Woodward

Used on an Epson WorkForce 840 that stopped printing black if you didn't run the cartridge installation setup. I left the cleaning solution overnight to allow the product to work for as long as I could afford. I didn't actually measure the volume of solution I injected into each colored nozzle, but I probably used more than needed. If you use large amounts of cleaning solution, heat the solution and leave overnight, black ink will print well like other colors. I've turned the printer off and on multiple times after cleaning, and all colors, including black, printed with no issues. Very happy with this product. The instructions are easy to follow. Being generous with the cleaning solution means using all the blotting paper that comes with it, so I'll have to buy more if I need to use the set again, but I'm fine with that. While I really needed an excuse to buy a new printer, this kit took away that excuse. Therefore, do not buy this product if you are in the mood for a new printer.