...by refilling the toner cartridge of my laser printer.One thing I've always absolutely hated about the computer printer industry is the sheer waste and expense involved in replacing inkjet and toner cartridges. These things are quite complex bits of engineering (especially toner carts), and it makes no sense whatsoever to me to throw them away just because they're empty. But the manufacturers of these things go to great lengths to make it difficult or impossible to refill them. It's often said