How does a laser printer work?


Two major components make up the laser printing process: the printer toner and the drum. The drum is electrostatically charged in the areas where the toner will be attracted. The positively charged printer toner consists of black, powdery particles. Because the drum is negatively charged, the toner is attracted to it. The drum then transfers the toner to the page.

Printer toner contains specially formulated wax that is able to melt and dry quickly. Once the toner is transferred to the paper, the fuser applies heat and pressure to the paper to make the image permanent.

Printer toner is commonly used in laser printers and copiers, as well as some fax machines. Ink printers, on the other hand, use liquid ink rather than toner.

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