发明名称 |
Ink feed system |
摘要 |
An ink feed system for an electrophoretic printer wherein a ribbon is used to carry ink from an ink supply to the paper upon which it is applied by means of an electric field. A magnetic constituent is added to the ink and a magnetic field is impressed alongside the ribbon and parallel to the surface thereof. A Hall probe positioned in the magnetic field senses perturbations thereof perpendicular to the ribbon induced by the presence of ink on the ribbon. A signal produced by the Hall probe signals the density of the ink upon the ribbon and is utilized for regulating a flow of ink onto the ribbon.
|
申请公布号 |
US4122459(A) |
申请公布日期 |
1978.10.24 |
申请号 |
US19770816554 |
申请日期 |
1977.07.18 |
申请人 |
RAYTHEON COMPANY |
发明人 |
SCHLOEMANN, ERNST F.R.A.;HOWELL, FRED M. |
分类号 |
B41J27/16;G01D15/16;G03G15/08;G03G15/34;(IPC1-7):G01D15/12 |
主分类号 |
B41J27/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|