CIRCULATION UNIT, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE APPARATUS

A circulation unit includes first and second pressure adjusters each including a valve chamber, a pressure control chamber, a communication port providing communication therebetween, a valve configured to open and close the communication port, a flexible member, and a pressure plate. The valve of th...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHII, KAZUYA, NABESHIMA, NAOZUMI, KITASE, YUSHI
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 circulation unit includes first and second pressure adjusters each including a valve chamber, a pressure control chamber, a communication port providing communication therebetween, a valve configured to open and close the communication port, a flexible member, and a pressure plate. The valve of the first pressure adjuster is opened when in its pressure control chamber is lower than PX, or closed otherwise. The pressure plate and valve of the second pressure adjuster are in a contact state when pressure in its pressure control chamber is lower than PY, or in a non-contact state otherwise. PX and PY satisfy PX−PY