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Title:
INKJET RECORDING APPARATUS, INKJET RECORDING HEAD, AND EJECTION CONTROL METHOD FOR INKJET RECORDING HEAD
Document Type and Number:
Japanese Patent JP2006305807
Kind Code:
A
Abstract:

To increase the strength of a nozzle part, while preventing an ejection port from being clogged with foreign matter such as dust in ink.

This inkjet recording apparatus comprises: an inkjet recording head which comprises a first ejection port array H1108a, a second ejection port array H1108b, and a common supply port H1102 for supplying a droplet to first and second ejection ports; and a control part for controlling the ejection of each of the first and second ejection ports. The first ejection port array 1108a is equipped with a filter H1111a which is formed to prevent the inflow of foreign matter with maxiMum dimensions, capable of flowing into at least the second ejection port H1107b. The control part controls the ejection of the first and second ejection ports so that a pre-ejection reference value, which is obtained by multiplying the total amount of the ejection of the droplet ejected from each ejection port array during pre-ejection by the driving frequency of each ejection port, and a pre-ejection reference value for the first ejection port array can be set larger than a pre-ejection reference value for the second ejection port array.


Inventors:
NAGATA SHINGO
Application Number:
JP2005129408A
Publication Date:
November 09, 2006
Filing Date:
April 27, 2005
Export Citation:
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Assignee:
CANON KK
International Classes:
B41J2/18; B41J2/175; B41J2/185
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Shinichi Iwata
Masaaki Ogata



 
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