Anti-dispersion accumulator for ink jet printing system
US4160982A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1978 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Mar 24, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/1853
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printing system includes an ink ejection head for providing ink drops which are selectively charged and deflected in accordance with their charge as they traverse a path toward a recording medium. An accumulator or "dump" is positioned, in the operating mode of the system, adjacent to the recording medium to catch ink drops directed away from the medium. Before the printing is started, the charging and deflecting units are displaced from the ink path, and the accumulator is abutting the ejection head, effectively capturing any ink emanating from the head. When the system has been pressurized and is in all respects ready for operation, the accumulator is displaced away from the ejection head and along the normal path of the ink drops, thus "catching" all the drops until it reaches its normal operating position adjacent the medium. The charging and deflecting units are then moved into their normal operating positions. In the process of shut-down, the deflection and charging means are moved away from the ink path, and the accumulator is then retracted from its operating position adjacent the medium, again traversing the path of the ink drops and catching all the drops, unti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.