Liquid ejection head, liquid ejection apparatus, and drive control method
US7618128B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Jul 8, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The liquid ejection head comprises: a nozzle through which liquid is ejected; a pressure chamber which stores the liquid ejected through the nozzle; a pressurizing device which changes a volume of the pressure chamber to apply pressure to the liquid stored in the pressure chamber; and a supply port through which the liquid is supplied to the pressure chamber, wherein the liquid ejection head has a structure such that inertance Mn of the nozzle, liquid resistance Rn of the nozzle, compliance Cn caused by a surface tension of the liquid in the nozzle, inertance Ms of the supply port, and liquid resistance Rn of the supply port satisfy the following inequality:so that oscillation of a meniscus surface located in vicinity of the nozzle is controlled at a time of refill when the liquid is filled in the pressure chamber through the supply port after the liquid is ejected from the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.