Patent Number: 7,824,009

Title: Liquid ejection head

Abstract: A liquid ejection head capable of achieving satisfactory printing without nozzle misfiring in an area close to an end of a nozzle row and droplet misdirection is provided. The ejection orifices, except for dummy orifices, are provided with protrusions. Four operative ejection orifices located close to each of the ends of each ejection orifice row are defined as end-located ejection orifices. Each of the protrusions provided in the end-located ejection orifices has a shorter length than that of the protrusion provided in the ejection orifice located in the central portion of the nozzle row.

Inventors: Takei; Yasunori (Tokyo, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: B41J 2/15 (20060101)

Expiration Date: 2019-11-02 0:00:00