Ink jet head and printing apparatus
US6682180B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Jun 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head having a plurality of nozzles discharging ink supplied from an ink supply unit. The ink jet head includes a head main body including a plurality of pressure chambers (112) provided for the respective nozzles, in which ink is filled, and a plurality of pressure units provided for the respective pressure chambers (112), each of the pressure units applying pressure to the pressure chamber (112) to discharge the ink in the pressure chamber (112) from the nozzle, an individual electrode (109) provided for each of the pressure units to drive the pressure unit, at least one contact (121) connected to an external connection wiring member supplying a signal for controlling the pressure unit, and a wiring pattern (123) formed into a thin film to electrically connect the individual electrode (109) to the contact (121), thereby facilitating connection to the external connection wiring member, improving the fabrication efficiency and the reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.