Liquid discharge head and image forming apparatus
US12330419B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Sep 18, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid discharge head includes a piezoelectric element and a flexible circuit board to supply a driving signal and a common-electrode signal to the piezoelectric element. The piezoelectric element includes multiple drive portions arranged in a first direction; multiple non-drive portions; and multiple dummy drive portions at each portion between the multiple drive portions and the multiple non-drive portions in the first direction; a first electrode configured to supply the driving signal to the multiple drive portions; and a second electrode configured to supply the common-electrode signal to the multiple drive portions. The flexible circuit board includes a third electrode configured to supply the common-electrode signal to the multiple drive portions. Each of the multiple non-drive portions and the multiple dummy drive portions include a common-electrode joint connected to the third electrode of the flexible circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.