Liquid discharge device and system
US12370791B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Mar 15, 2023 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Sep 7, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/18
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid discharge device has a liquid discharge head that includes a pressure chamber substrate provided with a first pressure chamber in which a liquid is accommodated, a first piezoelectric body provided to correspond to the first pressure chamber, and a detection resistor for detecting a temperature in a vicinity of the first pressure chamber, and a decision section that decides a degree of deterioration of the first piezoelectric body based on a detection result of the detection resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.