发明授权
US4353656A Moving coil, multiple energy print hammer system including a closed loop
servo
失效
移动线圈，多能打印锤系统，包括闭环伺服
- 专利标题： Moving coil, multiple energy print hammer system including a closed loop servo
- 专利标题（中）： 移动线圈，多能打印锤系统，包括闭环伺服
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申请号： US196494申请日： 1980-10-14
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公开(公告)号： US4353656A公开(公告)日： 1982-10-12
- 发明人: Gordon Sohl , John R. Masters , John R. Leicht
- 申请人： Gordon Sohl , John R. Masters , John R. Leicht
- 申请人地址： CT Stamford
- 专利权人： Xerox Corporation
- 当前专利权人： Xerox Corporation
- 当前专利权人地址： CT Stamford
- 主分类号： B41J9/48
- IPC分类号： B41J9/48 ; B41J19/00
摘要：
For use in an electronic printing system having a serial impact printer, apparatus is provided to accurately control the velocity of the print hammer during printing and provide accurately controlled impact energy, which is proportional to the character face area. The apparatus includes a servo feedback system where the primary driver for the print hammer is a moving coil in a magnetic field, and the velocity sensing required for the servo feedback loop is the back emf in the moving coil with the back emf being proportional to the hammer velocity.
公开/授权文献
- US4862481A Signal transmission process 公开/授权日：1989-08-29
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