Laser printers print with toner cartridges. If your toner cartridge is empty, you can easily replace it with a new one. Which ink toner cartridge you choose depends on the model of your laser printer. For example, there are ink toner cartridges for HP, Canon, Samsung, and Brother. If you print many color documents, a color toner cartridge is useful. Go for an affordable XL pack or bundle if you print a lot. With these toner cartridges, you can print more and longer.