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公开(公告)号：EP4253056A1
公开(公告)日：2023-10-04
申请号：EP23163622.6
申请日：2023-03-23
摘要： An object is to provide a liquid ejection head (1) and liquid ejection apparatus (101) capable of reducing or preventing a decrease in image quality without increasing the chip size. To achieve this, a configuration is employed in which a bonding layer (19) is not provided between a liquid supply substrate (203) and channel partitions (16) between common supply channels (13a) and common collection channels (13b), and a minute communication portion (20) is provided there.
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公开(公告)号：EP4253055A1
公开(公告)日：2023-10-04
申请号：EP23163616.8
申请日：2023-03-23
IPC分类号： B41J2/14
摘要： A liquid ejection head (1) includes: an ejection port array (3) being an array of ejection ports; a plurality of pressure chambers (5) corresponding respectively to the ejection ports and communicating with the ejection ports; individual supply channels (7) and individual collection channels (8) communicating with the pressure chambers; a common supply channel (17, 27) communicating with surfaces of the individual supply channels opposite to surfaces thereof communicating with the pressure chambers; a common collection channel (18, 28) communicating with surfaces of the individual collection channels opposite to surfaces thereof communicating with the pressure chambers; and a damper member forming a wall of a part of at least one of the common supply channel or the common collection channel. The common supply channel and the common collection channel are formed so as to extend in a first direction along the ejection port array, and are disposed side by side in a second direction crossing the ejection port array.
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