verena W1580A 158A 1580 158 Drum Unit, Replacement for HP Printers Black Ink Toner

Functionality: Toner cartridges work with a laser printing process. The printer's laser creates an electrostatic image on a rotating drum, and the toner particles are attracted to the charged areas on the drum. The toner is then transferred to the paper and fused onto it by heat, producing the final printed document.