Ink jet recording apparatus and method capable of performing high-speed recording by controlling the meniscus of ink in discharging orifices
US5280310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Apr 23, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14362
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink is ejected at the same timing from ejection orifices in a number corresponding to an ink quantity 7% or less of an ink quantity ejected from all the ejection enabled ejection orifices of a plurality of ejection orifices of a recording head, and the ink ejection period from all the ejection enabled ejection orifices is set to be 70% or more of the driving period. Since the quantity of an ink ejected per unit time is minimized, and the negative pressure level generated in a common ink chamber can be set to be closest to normal pressure, the amplitude of a refill oscillation is minimized to stabilize ejection, and the driving frequency can be further increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.