Toner

Toner is a fine, powdered mixture of plastic particles, carbon, and coloring agents used in laser printing. Unlike liquid ink, toner is melted onto paper by the fuser unit, creating durable, water-resistant prints. Toner cartridges have much higher page yields than ink cartridges, making them more economical for high-volume printing. Toner comes in four colors for color printing (CMYK) or black only for monochrome printing.