Device for controlling and regulating an ink and processing thereof in a continuous ink jet printer
US5160939A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1990 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | May 17, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/175
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for controlling and regulating a continuous ink jet printer wherein a jet (J) is fractionated into droplets charged in a charge electrode (6) and which then pass between deflection electrodes, a sensor (8) is provided which includes a conductor element (8c) having two parts which are symmetrical with respect to the trajectory of the droplets. The device includes a circuit (9) which determines and processes the first I(t) and second J(t) derivatives with respect to the time of the charge induced in the conductor element (8c) by charged droplets (Gc) in order to determine their speed. The device includes means for regulating the speed of droplets and means for regulating the ink quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.