Inspection method of liquid discharge head and liquid discharge device
US9649838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2016 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jan 12, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14354
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Inspection processing is performed. The inspection processing includes a first driving step of driving a piezoelectric element corresponding to an inspection target nozzle, a first detection step of detecting vibration that is generated in ink in a pressure chamber corresponding to the inspection target nozzle by the driving in the first driving step, a second driving step of driving together the piezoelectric element corresponding to the inspection target nozzle and a piezoelectric element corresponding to at least one nozzle of nozzles adjacent to the inspection target nozzle, and a second detection step of detecting vibration that is generated in the ink in the pressure chamber corresponding to the inspection target nozzle by the driving in the second driving step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.