
I have a WF-7620. The nozzle test was good for all colors but missed a few points on black. Numerous cleanings and communication with Epson technical support did not lead to anything. I've been watching some similar head cleaning videos on YouTube so thought I'd give this head cleaning kit a try. There is an official cleaning video for this kit in the instructions and I watched it several times just to make sure I understood all the instructions very clearly. I even went to the grocery store to buy a roll of the recommended Bounty paper towel (mentioned in the video) for cleaning. The kit itself is simple and its use is very easy. I followed EXACTLY the steps shown in the tutorial video. In fact, I've done it four times in just a few hours. Unfortunately, the print quality hasn't improved - in fact, I got even dirtier prints than when I started. So I tried the technique of leaving a syringe of cleansing liquid on the blackhead overnight to let things soak in, hoping it would help. DO NOT DO THAT! I tried to check the nozzles this morning and I got no color or black print - PRINT ABSOLUTELY NOTHING! A few hours later, after a few extra cleanings and only after ALL the ink cartridges have been replaced, the printer "works" again, albeit with a much worse nozzle check than hours ago when I started it. So I switched from a working printer with sub-optimal print quality to a working printer with very sub-optimal print quality. Guess I'll just have to buy a new one. At least tomorrow is Black Friday and I might be able to make a dealβ¦. In short, I don't see why this set shouldn't work, but after many hours of trying to use it I've failed miserably and the effort has cost me dearly.

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