Ink jet method and apparatus for reducing cross talk
US4788557A · kind A · utility
18Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1987 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Mar 9, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14274
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An impulse ink jet apparatus includes a plurality of lengthwise expandable piezoelectric transducers, each of the transducers varying the volume of a compression chamber in order to eject droplets of ink therefrom. Mechanical cross talk propagating along a support structure for the transducers is minimized by effectively decoupling each transducer from its neighbors. In one approach, the support structure rigidly supports each transducer at displacement nodal points thereof, while in another approach the lengths of the transducers are uniquely varied with respect to their neighbors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.