Xerografiset

Xerografiset refers to technologies and processes that use xerography, a dry electrostatic method for copying and printing. The term originates from Greek xeros meaning dry and graphia meaning writing. The concept was developed in the 1930s by Chester Carlson, with the first successful reproduction in 1938 and commercial deployment by Xerox in the 1950s. Today, xerography underpins most office copying and many printer systems.

Principle: A photoconductive surface, typically a drum or belt, is uniformly charged. Light from the original creates a latent electrostatic image by discharging the illuminated areas. Electrically charged toner particles then selectively adhere to the charged image. The toner is transferred to paper and fused by heat and pressure to form a durable print. Modern xerographic devices may use single-pass color systems or multiple passes to produce color images.

Applications and devices: Xerox-style xerography is used in plain-paper photocopiers and laser printers, as well as multifunction devices that combine copying, printing, scanning, and faxing. In production settings, xerographic printers support high-volume document printing, direct mail, and book-production workflows. The technology also underpins many modern digital printing applications that require fast turnaround and reliable output.

Overview: Xerography remains the dominant technology for many office printers due to speed, reliability, and favorable cost per page. It is distinct from wet-based and inkjet printing methods. The term xerografiset is commonly used to describe this class of devices and processes in Finnish-language contexts.