LASER RASTER OUTPUT SCANNER EXPOSURE CONTROL
Original Publication Date: 1993-Apr-30
Included in the Prior Art Database: 2004-Apr-06
Xerox Disclosure Journal
It is a goal in xerographic laser printers to automatically adjust the exposure control of a raster output scanner (ROS) to match whatever photoreceptor is currently installed in the machine. Copy quality stability requirements place certain demands on the ROS light output that include: (1) a short warm-up time of less than one minute, (2) a light output that remains stable within k2.5% over a long term period of 24 hours, and (3) the ability to settle to new exposure settings within 100 milliseconds.