Your printer needs ink for printing documents and images. That's why you'll want to buy some. The printer ink you choose depends on your printer type. Inkjet printers use cartridges. Ink tanks print with ink bottles and laser printers print with toner cartridges. Check beforehand which cartridge, ink bottle, or toner cartridge is suitable for your printer. You can choose between ink from HP, Canon, Epson, and Brother. Print a lot? Choose an affordable XL pack or bundle.