 Hey guys, it's Kevin. I remember I got the little Canon printer that I added a ink tank to it. I'm going to put the link to the video about how I did it and how to do it here. Some of you like the idea, some don't. I'll be using this printer. If you bought anything from me in the last few months and you packing sleep is printed by this printer. This is what I did after I finished it. That was back in July and now it's November. And guess what? It's broken. Don't say I told you so. The only problem I have is that those random stripes and I clean and I clean, I cleaned and also print another check. It's weird because another check looked perfect. No problem at all. I looked and looked and finally I light up and I figured out what was the problem. And before I open my printer and put my hands in there to fix it, it may be better to talk about if it's worth it. The printer has been worry-free. Only thing I did is I added ink to it. So I didn't have to buy cartridges. I didn't have to refill cartridges. Fourth thing is let's see how much money we saved for printing this many pages. Let's go to Ken's website to get some information. So Ken has sold a black cartridge for 1799 and Ken says it has 11.2 mil of ink in it. So the question is how many pages can 11.2 mil print? Let me show you a trick. Each mil of ink, each millimeter of ink can print one page full color. For example, if you print a page all covered in black, that's going to take one mil. So 11.2 can print 11.2 black page, all black. And Canon is not Canon. Just every printer manufacturer assume the coverage of a regular document is about 5 percent. So coverage is 5 percent. So a regular text document or whatever you have, we're going to have that page covering 5 percent of black. So the estimate pages just equals the whole page and divide by a coverage, which is about 224 pages for black. Okay, let's check Google 250 pages. How about that? We're pretty close. So we do the same thing for the color, except the color you get four cartridges for one set. So you need all four to work together. Each one has 5.6 mil and the price is $47. And we assume they can print 5.6 whole pages of color and coverage is 2 percent. Then we calculate the estimate pages is 280. Google says 259 and we get close again. Now we can divide the number of pages printed by how many pages a black cartridge can print, which is about 44 black cartridges. To buy those cartridges, you'll need about $700. We do the same for the color and you'll need about 35 sets of color cartridges. So if you do not do the CS and this is how much money you're going to spend. So how much cost us to do this? We spend one hour to modify the printer. Remember we assume a 5 percent coverage of black. So that many pages and multiplied by 5 percent, that means about 500 mils of black ink. And about 200 mils of color ink, I mean 200 for each color. And how much does those ink cost us? Let's go to bchtechnology.com and the ink I use is KT600. So you just go there and type in KT600 and this is for Canon. So this one has three blacks and one of each color. So if you buy two sets, you're going to get six blacks and two sets of color. And each one is $15. So the whole thing costs $30. And for one hour over time, I mean we can consider how much time you spend on go to the store buy 44 sets of cartridges or how much time did you spend on shopping online and just click buy. So that probably equals to one hour. And for the money wise, you either spend $2,000 or you spend $30. So my verdict is it's really worthwhile to do a CS. OK, this got along. So I was thinking about how I fix it in this episode, but probably I have to do it tomorrow.