Liquid discharge head and liquid discharge apparatus that uses the liquid discharge head, and discharge volume correction method for the liquid discharge head
US6454379B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Jun 1, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/13
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid discharge head includes an element substrate on whose surface a plurality of energy generation elements are arranged in parallel to generate electrical energy that is applied to eject a liquid, a top plate positioned facing the element substrate and defining a plurality of liquid flow paths that correspond to the energy generation elements and that communicate with discharge orifices from which liquid is ejected, one or more flow rate detection elements, which are provided for each of the liquid flow paths to detect the flow rate at which the liquid flows along each of the liquid flow paths, and an energy generation element controller for controlling the conditions under which the energy generation elements are driven, based on the results output by the flow rate detection elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.