Final answer:
A laser printer uses toner powder and technology similar to a photocopier to produce images on paper.
Step-by-step explanation:
A laser printer uses toner powder and technology similar to a photocopier to produce images on paper. The process in a laser printer involves the use of a laser to create a photoconductive image on a drum, which attracts dry ink particles that are then rolled onto a sheet of paper to print a high-quality copy of the image.
In the xerographic process used by laser printers, a dry black powder called toner is sprayed with a negative charge so that it is attracted to the positive regions of the drum. The toner is then transferred to a blank piece of paper, which is given a greater positive charge than the drum to pull the toner from it. Finally, the paper and the electrostatically held toner are passed through heated pressure rollers, which melt and permanently adhere the toner to the fibers of the paper.
Laser printers can achieve high-quality output and are often used for printing documents and images from a computer. They can produce both black-and-white and color prints.