I own the Ink Sonic R1390, and while the warranty necessitates the use of this specific ink, I must admit that I'm quite pleased with it. I've experienced no color issues thus far, and I've been using this ink for about three months. I've also transitioned my L805 to this ink. It appears to be well-suited for the smaller printer, which is not used as frequently. After a head cleaning, it prints flawlessly, even after a few days of not being used.
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