Method and apparatus for driving ink jet recording head
US5510816A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1992 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Nov 6, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of driving an ink jet recording head comprising the steps of: retreating a vibrating plate to a predetermined position from a nozzle opening at such a speed as to allow a meniscus at the nozzle opening to be jetted from the nozzle opening while applying a drive voltage to a piezoelectric vibrating element; holding the vibrating plate at the position; and advancing the vibrating plate toward the nozzle opening when the meniscus has returned to a position 1/3 or more of the farthest retreat position thereof. As a result, a pressure chamber contracted to thereby apply pressure to ink when inertial stream of the ink become stable and heads toward the nozzle opening, producing an ink droplet to be jetted at a predetermined speed irrespective of the position of the meniscus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.