Liquid ejection head and method for ejecting liquids
US9956779B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 16, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/155
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejection head includes a first ejection opening group in which a plurality of ejection openings that eject a particular kind of liquid onto a print medium are arranged in a predetermined direction, and a second ejection opening group that is provided along the first ejection opening group to eject the particular kind of liquid onto the print medium. The first ejection opening group is provided upstream of the second ejection opening group with respect to a relative moving direction between the print head and the liquid ejection head. The plurality of ejection openings included in the first ejection opening group are disposed in the predetermined direction in a zigzag shape, and the liquid ejected from the ejection openings adjacent to each other in the predetermined direction come in contact with each other on the print medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.