LIQUID EJECTION APPARATUS AND HEAD UNIT

A liquid ejection apparatus includes: an ejection head; a liquid reservoir; and a pressure control mechanism controlling a pressure of liquid supplied from the liquid reservoir and supplying the ejection head with liquid, the pressure control mechanism including a pressure chamber with the ejection...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INOUE, RYOJI, NABESHIMA, NAOZUMI, NAGAOKA, KYOSUKE, YOSHII, KAZUYA, NAGAI, NORIYASU
Format:	Patent
Sprache:	eng
Schlagworte:	CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	A liquid ejection apparatus includes: an ejection head; a liquid reservoir; and a pressure control mechanism controlling a pressure of liquid supplied from the liquid reservoir and supplying the ejection head with liquid, the pressure control mechanism including a pressure chamber with the ejection head, a lever member connected to the valve element at a load and connectable to a pressure receiving member for a pressure of the pressure chamber at an effort, and a biasing mechanism biasing the valve element at the load of the lever member, the pressure control mechanism controlling a pressure of the pressure chamber. In the pressure control mechanism, a lever ratio, which is a ratio of a distance between the effort and fulcrum of the lever member to a distance between the load and fulcrum of the lever member, is greater than 1 and less than 5.