There’s a button on the left side that pops open the front panel so you can access toner cartridges, but Canon shipped the Color imageCLASS LBP674Cdw with starter cartridges already installed.

The HP Color LaserJet Pro 3201dw ships with four TerraJet cartridges, which use less plastic than other types and are especially energy efficient thanks to the toner’s low melting point.