Ink jet print head and ink jet printing apparatus

Details Ink jet print head and ink jet printing apparatus Ink jet print head and ink jet printing apparatus

2008-12-03

2011-12-13

Kim, Ellen (Department: 2874)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S021000, C347S028000, C347S034000

Reexamination Certificate

active

08075120

ABSTRACT:
An ink jet print head is capable of creating a state where the direction of ink-drop ejection is not likely to be influenced by air currents generated by the ink ejection, and is capable of printing an image without causing the shifting of dots. To this end, air currents generated by the ejection of ink and the interference among the air currents are reduced by blowing out gas in a direction parallel with the direction of the ink ejection. Accordingly, even with a print head that ejects, at high ejection frequency, ink from multiple ejecting openings formed densely, the advancing direction of the ink drops is unlikely to be deflected. As a consequence, a high-quality, uniform image can be outputted.

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