发明授权
- 专利标题： Ink jet printing apparatus with variable character size
- 专利标题（中）： 具有可变字符大小的喷墨打印设备
-
申请号： US194099申请日： 1980-10-06
-
公开(公告)号： US4337470A公开(公告)日： 1982-06-29
- 发明人: Tatsuya Furukawa
- 申请人： Tatsuya Furukawa
- 专利权人： Ricoh Co Ltd
- 当前专利权人： Ricoh Co Ltd
- 优先权： JPX54-132186 19791013
- 主分类号： B41J2/205
- IPC分类号： B41J2/205 ; B41J2/07 ; B41J2/21 ; G06K15/10 ; G01D15/18
摘要：
A printed dot size is varied by varying a frequency of pressure oscillation applied by a vibratory (18) to ink in an ink ejection head (17), the vibration causing the ink to be ejected from the head (17) and separate into droplets. The variation in ink drop size enables variation of the printed image size by varying an amount of electrostatic deflection of the ink jet and a carriage speed by corresponding amounts.
信息查询
IPC分类:
