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Xerox Phaser is the brand name for a line of color and monochrome printers produced and sold by Xerox. Some Phaser printers use Xerox Solid Ink which takes advantage of 2400 FinePoint technology. Phaser printers were originally manufactured and marketed by Tektronix, of Wilsonville, Oregon.
The Acquisition of the Tektronix Color Printing and Imaging Division by Xerox 
Xerox acquired the Tektronix Color Printing and Imaging Division, including the Phaser brand, in 2000. The Phaser brand has become a key component of Xerox's office product portfolio, and the company continues to expand the product line.
One of the more important aspects of the acquisition of the Tektronix divisions is that Xerox decided to keep the Tektronix staff and support services, as Tektronix is a well known name for high-performance and high-quality printers. This was a very important move for Xerox since Tektronix had a very good marketing campaign, attending all major tradeshows and excellent customer service.
The Phaser 7700 Series 
The Xerox Phaser 7700 Series of Color Laser Printers use the VxWorks Operating System on its 20GB PATA IDE Hard Drive (For Example, The 7700GX Series Includes an IBM 20GB Model #:IC25N020ATCS04-0 Xerox P/N: 650-4198-02).