Who Invented Laser Printer

It produces high quality text and graphics and moderate quality photographs by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a drum to define a differentially charged image.

Who invented laser printer. Designed for data centres the ibm 3800 replaced line printers and was capable of a high volume of printing offering speeds of. Researcher gary starkweather is credited with its research and development and by the year 1971 he had brought into being a fully functional networked printer system. The laser printer is arguably the greatest invention made in a xerox research center xerox s chief technology officer steve hoover said in 2017 in marking the 40th anniversary of the. Charles babbage designed the first mechanical printer in the 1800s for use with the difference engine that he also developed in 1822.

It was designed to be used with the univac. It was a laser printer that operated at speeds of more than 100 impressions per minute. Who invented laser printers. In 1938 the american physicist and inventor chester carlson 1906 1968 see the nearby image invented a dry printing process called later xerography the word comes from the greek for dry writing the foundation technology for copiers and laser printers to come carlson applied for patent in 1939 and in 1942 the patent was granted us patent 2297691.

Until the early 1980s hardly anyone had a personal or office computer. Laser printing is an electrostatic digital printing process. Maiman at hughes research laboratories based on theoretical work by charles hard townes and arthur. The original laser printer was known as ears and was completed in palo alto california.

Soon after he transferred to xerox palo alto research center parc and developed a prototype for the xerox 9700. The first laser was built in 1960 by theodore h. The drum then selectively collects electrically charged powdered ink and transfers the image to paper which. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation the term laser originated as an acronym for light amplification by stimulated emission of radiation.

According to ibm the very first ibm 3800 was installed in the central accounting office at f. We invented laser printing. The few people who did made hardcopies printouts with dot matrix printers these relatively slow machines made a characteristically horrible screeching noise because they used a grid of tiny metal needles pressed against an inked ribbon to form the shapes of letters numbers and symbols. The typewriter was considered a precursor to printers and keyboards was invented by christopher sholes in 1868.

Woolworth s north american data center in milwaukee wisconsin in 1976 the ibm 3800 printing system was the industry s first high speed laser printer. The first commercial laser printer was released by ibm in 1976. This machine later became the xerox 9700 laser printer. Specifically gary starkweather invented the laser printer in 1969 at the xerox research lab in webster new york.

We know laser printing best because we invented it. Our company s first laser printer.