| 发明名称 | Method of operating an electrostatic printhead | ||
| 摘要 | A method of reducing and/or preventing the accumulation of concentrated ink at an ejection point of a printhead of an electrostatic inkjet printer when ink is not being ejected at the ejection point, the method comprising reversing the electric field at the ejection point of the printhead during a non-printing phase of operation to reduce the concentration of ink at the ejection point. | ||
| 申请公布号 | US9475281(B2) | 申请公布日期 | 2016.10.25 |
| 申请号 | US201414895689 | 申请日期 | 2014.06.04 |
| 申请人 | Tonejet Limited | 发明人 | Clippingdale, Jr. Andrew John;Lecheheb Ammar;Sharp John Lawton |
| 分类号 | B41J2/045;B41J2/06 | 主分类号 | B41J2/045 |
| 代理机构 | Dickinson Wright PLLC | 代理人 | Dickinson Wright PLLC |
| 主权项 | 1. A method of reducing or preventing the accumulation of concentrated ink at an ejection point of a printhead of an electrostatic inkjet printer when ink is not being ejected at the ejection point, the printhead comprising: an ejection electrode; andan intermediate electrode, the printer comprising: a bias supply for supplying a voltage to the ejection electrode of the printhead; andan intermediate electrode supply for supplying a voltage to the intermediate electrode of the printhead, the method comprising reversing the electric field at the ejection point of the printhead during a non-printing phase of operation to reduce the concentration of ink at the ejection point by short circuiting the bias supply to ground. | ||
| 地址 | Royston, Hertfordshire GB | ||