A standard printer with a rotating drum, the surface of which conducts electricity when it comes into contact with light. The surface of the drum is first electrically charged, a beam of laser light then records the printing information on the drum line by line by means of a rotating mirror wheel. When light comes into contact with the surface of the drum, it is discharged. The toner which is then applied only adheres to the places that are not illuminated. When transferred onto the paper and fixed in place using heat, the toner produces the print image required