Xerox Dover
The Xerox Dover laser printer was an early laser printer manufactured at Xerox PARC in the late 1970s. Around 35 were built. It was a successor to the EARS printer, itself a successor to the Xerox Graphics Printer. The Dover was developed by Gary Starkweather. The printer was based on a stripped down Xerox 7000 reduction duplicator chassis. Dover printers were in use at several high-profile computer science research labs. A Dover printer was installed at Stanford University's computer science department in 1980, and a Dover printer was available at the MIT AI Lab in 1982, hosted by a Xerox Alto computer. References 

Laser printers
1970s in computing