基本信息:
- 专利标题： Raster output scanner and method
- 专利标题（中）：RASTER输出扫描仪和方法
- 申请号：EP82300463.5 申请日：1982-01-29
- 公开(公告)号：EP0057586B2 公开(公告)日：1989-07-12
- 发明人： Traino, James Charles
- 申请人： XEROX CORPORATION
- 申请人地址： Xerox Square - 020 Rochester New York 14644 US
- 专利权人： XEROX CORPORATION
- 当前专利权人： XEROX CORPORATION
- 当前专利权人地址： Xerox Square - 020 Rochester New York 14644 US
- 代理机构： Weatherald, Keith Baynes
- 优先权： US229811 19810130
- 主分类号： G03G15/052
- IPC分类号： G03G15/052 ; G02B26/10
摘要：
A raster output scanner having a movable imaging member and high intensity imaging beam for exposing the imaging member to create images thereon. A rotating polygon scans the beam across the imaging member in line by line fashion while a modulator astride the beam path modulates the beam in accordance with image signals or pixels input thereto. A clock provides clock pulses for clocking the image pixels to the modulator. To assure uniform image size despite variations in the velocity of the imaging member, a control signal representative of imaging member velocity is used to control polygon velocity and maintain a predetermined velocity relationship between imaging member and polygon. Means are provided to servo clock frequency with polygon rotation, with a control to shift the clock servo midpoint frequency in response to changes in imaging member velocity.
公开/授权文献:
- EP0057586B1 Raster output scanner and method 公开/授权日：1985-11-06