When you’ve been buying replacement cartridges for your printer, that means you know how important buying the right cartridge is. But not every consumer knows this. Here’s some brief info on printers. There are two kinds of printers – laser printers, for massive, rapid printing; and inkjet printers, for small scale, office use. These printers are different from each other and use different cartridges. laser toner cartridges don’t have ink, unlike inkjet cartridges. Instead these contain electrically charged powdery substances that fuse on the paper’s surface. Laser printers, because they can print thousands of pages rapidly, save both time and money via fewer cartridges bought over time. But if you need to print school, office, or personal needs that don’t amount to hundreds of pages printed rapidly, then inkjet printers are suitable for you. Keep in mind that replacing laser toner cartridges and inkjet cartridges can still be expensive, unless you purchase remanufactured cartridges.