Chester Carlson was born in Seattle in 1906. His parents—Olof Adolph Carlson and Ellen Josephine Hawkins—had grown up on neighboring farms in Grove City, Minnesota, a tiny Swedish farming community ...

WEST CHESTER — Chester County Commissioners Josh Maxwell, Marian Moskowitz and Eric Roe recently ratified the selection of Heidi Carlson as director of the county’s Department of Aging Services.

The workplace has never been the same. Seventy-five years ago today, Chester F. Carlson invented the process of dry photocopying known as electrophotography. The innovation led to the creation of the ...

This is a Xerox glass slide used in the first successful experiment in xerography. Chester Carlson (1906-1968) invented the process of electrophotography, or xerography, in 1938. Over the next five ...