LIQUID EJECTION HEAD, IMAGE FORMING APPARATUS EMPLOYING THE LIQUID EJECTION HEAD, AND METHOD OF MANUFACTURING THE LIQUID EJECTION HEAD

A liquid ejection head includes a nozzle formation member having a liquid repellent layer disposed on a droplet ejection face of a nozzle substrate in which one or more nozzle orifices is formed to eject droplets. The liquid repellent layer includes a first sub-layer and a second sub-layer. The firs...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIMOTO KENICHIROH, FUJII KAORI, URASAKI KOHZOH, HIRATSUKA YUTA
Format:	Patent
Sprache:	eng
Schlagworte:	COMBINED OPERATIONS CORRECTION OF TYPOGRAPHICAL ERRORS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING TYPEWRITERS UNIVERSAL MACHINE TOOLS
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Beschreibung
Zusammenfassung:	A liquid ejection head includes a nozzle formation member having a liquid repellent layer disposed on a droplet ejection face of a nozzle substrate in which one or more nozzle orifices is formed to eject droplets. The liquid repellent layer includes a first sub-layer and a second sub-layer. The first sub-layer contains a higher proportion of low-molecular-weight molecules than the second sub-layer. The second sub-layer contains a higher proportion of high-molecular-weight molecules than the first sub-layer. Both the first sub-layer and the second sub-layer are exposed on a surface of the nozzle formation member.