> Taking old cartridge (with the right chips and everything) and topping it up from a syringe (they hold only a few ml anyway), so you don't have to break anyth

> Taking old cartridge (with the right chips and everything) and topping it up from a syringe (they hold only a few ml anyway), so you don't have to break anything, can't be expensive or hard to do if the ink itself wasn't expensive. Everyone should want to get in on this business model. Since the page doesn't say anything about the actual cost price, I wonder if it isn't so lucrative as they make it seem If you mean setting up a business refilling other peoples' empty cartridges, this was briefly a thing when people still wanted to print things in color, and therefore wanted inkjet printers. It wouldn't be a standalone business, but an additional service at copy shops, computer stores, and sometimes cell phone shops (the sketchy-ish independent kind). When everyone has a color screen in their pocket all the time, there is little demand for this. Also, the means to do this are very very cheap and the process requires no special skill. You can buy refill kits with the syringes and enough ink for dozens of cartridges for less significantly less than the cost of a single cartridge. If you're interested in cheaping out on printer cartridges, it makes more sense to just buy one of these. A service that requires $20 worth of capital and no skill is never going to be the basis of a lucrative business.