Ink jet printer recording head
US5255016A · kind A · utility
101Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1990 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Aug 27, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/15
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printer recording head in which a plurality of vibrating plates made of a piezoelectric material are fixedly spaced from a nozzle plate such that the small gap therebetween admits a portion of ink. The surface of each vibrating plate is integrally provided with a pair of positive and negative comb-type electrodes. By applying a voltage across these comb-type electrodes, the vibrating plates are bent toward the nozzles to pressure the ink and attendantly eject the ink through the nozzles in the form of ink droplets on a recording sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.