Liquid jet recording head
US4725859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1987 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Jan 27, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid jet recording head comprises an electro-thermal transducer having a heat-generating resistance layer provided on a substrate, a pair of electrodes connected electrically to said heat-generating resistance layer and disposed with a gap so as to confront each other and a heat-generating section provided between these electrodes; a liquid discharging section corresponding to said electro-thermal transducer having an orifice provided for forming flying liquid droplets and a liquid pathway connected to said orifice and having a heat acting portion where heat energy for forming liquid droplets acts on liquid as a part of its constitution; and a liquid chamber for storing said liquid to be supplied to said liquid pathway, which comprises forming said electrodes thinner in the vicinity of at least the portion in contact with said heat-generating section as compared with other portions of the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.