"The second order I placed was to replace a cartridge that was bad. The electronic chip that the printer reads was unreadable or something because the replacement works fine. Just plugged in a new black a couple days ago and with virtually no printing it's saying it is low and no black shows on the page. The low prices suckered me in but buyer beware; in my experience 40% of their products go bad. Do yourself a favor and buy anywhere else, it seems like these guys go dumpster diving for their refills, don't actually refill them, and then charge you plus shipping. Customer support refused to help because I was just outside their warranty period. I guess they want you to open every refill, take off the security tape, plug it in, print a test page, then take it back out and store it for future ink changes. Ridiculous."