Topic: Chester Carlson

Chester Floyd Carlson (February 8, 1906 – September 19, 1968) was an American physicist, inventor, and patent attorney born in Seattle, Washington.

He is best known for having invented the process of electrophotography, which produced a dry copy rather than a wet copy, as was produced by the mimeograph process. Carlson's process was subsequently renamed to xerography, a term that literally means "dry copy."

When Carlson was young, both his parents had tuberculosis and his father also suffered from arthritis of the spine (a common, age-related disease). Because of their illnesses, Carlson worked to support his family from an early age. His mother died when he was 17 and his father died when Carlson was 27.