Photocopier a convergence in some high-end machines between the roles of a photocopier, a fax machine, a scanner, and a computer network-connected printer into a multi-function printer. Lower-end machines that can copy and print in color have increasingly dominated the home-office market as their prices fell steadily through 2017. Higher-end color photocopiers capable of handling heavy duty cycles and large-format printing remain a costlier specialty for print and design shops. Chester Carlson, the inventor of photocopying, was originally a patent attorney, as well as a part-time researcher and inventor. His job at the patent office in New York required him to
Henry S. Parmelee Henry S. Parmelee Henry S. Parmelee or Parmalee (c. 1846 – 1902), was president of the Fair Haven and Westville Street Railway Company and was a piano maker from New Haven, Connecticut. He took the idea of Sir Hiram Maxim and then invented the second automatic fire sprinkler system in 1874, to protect his piano factory. While other patents for fire sprinklers predated Parmelee's work, he is credited with the first automated sprinkler head. His piano company, Mathushek Piano Manufacturing, is credited as being the first building in the United States to be equipped with a fire suppression system. He