Ink droplet eject apparatus and method
US6196664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Jan 23, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14467
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink droplet eject apparatus comprises a plate-shaped member defining a conical ink droplet eject chamber increasing from an eject port to an opening, and a vibrating plate covering the opening. A spacer is disposed between the vibrating plate and the plate-shaped member surrounding the opening. An annular space is delimited by the spacer. An ink flow path is formed in the spacer. The vibrating plate is excited so as to generate an intermittent liquid flow of an ink W in the ink droplet eject chamber in the direction of the eject port. An actuator can arbitrarily control an amount of displacement of the vibrating plate and a generation time of displacement during the excitation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.