 Welcome to BCH Technologies. Today I'm replying to a customer's request. She's sending this cartridge, the color cartridge, and she couldn't unclog it. So the fourth thing is, it's a nice piece of work. Look at this. It's really clean and really nicely made. And it was using a virgin cartridge, and I highly recommend a virgin cartridge. However, she got the problem, she couldn't unclog it. So when I received it, I printed a printing pattern. And after refilling so many cartridges, I immediately know this cartridge gone bad for some reason and couldn't be recovered. You can see there are two bars of each color. There's the magenta, then there's the magenta. If there's a pretty good color on the second one, but no color, absolutely no color on the first one, and there's no way you can unclog it. It's not a clogging problem. It's a cartridge problem. So I did a couple unclogging, and you can see the result. The result is really nicely barred on the second one, and there's nothing on the first one. I actually, a couple of months ago, I called Canon and talked to an engineer with this problem. I was convinced this is a dead cartridge, so you don't need to spend any time on it. So I'm going to give the customer another cartridge, which I haven't had on hand as a gift. So it is this cartridge. And this cartridge is dark like this, OK? And something encouraging for us, one is there are some, at least we don't have a full bar here, nothing here. There's something here, so that means we can work on. Then after the first cleaning, oh, by the way, we cleaned, used the priming clip. We just draw the ink. This kind, you can only clean by the priming clip. If you don't know what a priming clip is, go to our BZHTechnology.com for the accessories and your priming clip and syringe. And this one is using the 245, 246 priming clip. Basically, you just put the cartridge on it and then you draw the ink from the bottom. You can now clean by the blowing air, unless you make it airtight. So after the first one, it looked even better. So we got the full bar for the first bar and although there's nothing on the second bar, because we have a full color here, we just keep going. And still, not really improving much. And then we just keep going. See, it's getting better and better. And eventually, we get this. OK, so basically, the take-home message is those two bars. If you do not see anything on the first bar, I think it's time to give up. Oh, I mean, if there's nothing on both bars, keep going. If there's nothing on the second bar, keep going. However, if there's a full bar on the second bar, but nothing on the first bar, I think it's time to give up. What can that engineer told me is that this is fired with half of the power of the first bar. So if the cartridge can work with even half of the power, the cartridge should work with the full power. However, if there's nothing on the full power, there's something wrong. Oh, by the way, those spongebob cartridges are filled with those sharp needles, OK? And so what you do is you punch the needle and you can see the ink well up. And then you stop when you see the top is starting to well up. I got a customer asked me, so you're supposed to put about three mils in each one, two to three mils. So I got a customer asked me, OK, I bought this kind of bottle. So how can I put it in? You can punch this in, but it's not accurate. What I prefer to do is I do this. I put two mils of air, then I fill it up this one, this way. Then I punch it in. I hope you enjoyed this video. This is the outside, www.pc.org.