Review on Epson Printer Nozzle Cleaner Kit for WF-7720 WF-7710 WF-7210 WF-7620 WF-7610 WF-2660 WF-2630 WF-2760 WF-2750 WF-3640 WF-3620 XP-430 XP-420 XP-410 XP-330 XP-320 - CoYlBod Printhead Cleaning Solution by Byron Elliott

One set was enough for me to clean two printers; Both, I thought, were just fools. I've been a computer scientist since 1984! So I've worked on a ton of printers in my life and tried dozens of methods with almost 100% failure rates. I didn't expect much. On my main Epson WF-3640 I had to do a nozzle cleaning 3-5 times a month to be marginal. One application and I have a crisp print again. and it seems to have kept my nozzles from getting stuck. My problem child was an Epson WF-7010 wide boulevard size stroller that I stopped using over 6 years ago. He just froze like a brick. This one took the rest of the bottle and was a pain. I received the solution as hot as the instructions recommended. Around 4ml per head is recommended which is what I did but then I did a series of 1-2ml treatments and waited a long time. Then he repeated. Then he repeated a second time. Then finished with a full 4ml treatment and waited another hour. All in all I spent a day and a half and 90 minutes trying to get it clean, but today it prints just as clean as the day I bought it. I really did NOT expect this product to work, maybe a little better, but I will buy again and recommend.