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公开(公告)号：US20230018726A1
公开(公告)日：2023-01-19
申请号：US17935674
申请日：2022-09-27
发明人： Jason THELANDER , David BURKE , Andrew THOMAS
摘要： A pagewide printhead for redundant printing has first and second rows of printhead chips mounted on a common ink manifold. The ink manifold has four ink supply channels for supplying ink to the first and second rows of printhead chips. Dedicated ink outlets interconnect one ink supply channel of the ink manifold with two color channels in each printhead chip.
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公开(公告)号：US11485139B2
公开(公告)日：2022-11-01
申请号：US17377186
申请日：2021-07-15
发明人： Jason Thelander , David Burke , Andrew Thomas
摘要： A pagewide printhead for printing redundantly in four colors. First and second rows of printhead chips are mounted on a common ink manifold having four ink supply channels for supplying four colors of ink to the first and second rows of printhead chips. Dedicated ink outlets interconnect one ink supply channel of the ink manifold with a pair of redundant nozzle rows in each printhead chip.
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公开(公告)号：US11472194B2
公开(公告)日：2022-10-18
申请号：US17272586
申请日：2019-08-29
申请人： Ricoh Company, Ltd.
摘要： A liquid discharging device is provided that includes: a first head (11) containing a pretreatment liquid, configured to discharge the pretreatment liquid onto a recording medium; a second head (12) disposed downstream of the first head (11) in a conveyance direction of the recording medium, configured to discharge an ink; an exhaust unit (14) disposed upstream of the first head (11) in the conveyance direction, configured to evacuate a gas present between the first head (11) and the recording medium from a downstream side to an upstream side in the conveyance direction; and a housing (30) internally containing the first head (11) and the second head (12), internally or externally containing the exhaust unit (14), and having an opening (32) downstream of the exhaust unit (14) in the conveyance direction.
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公开(公告)号：US11427013B2
公开(公告)日：2022-08-30
申请号：US17147190
申请日：2021-01-12
申请人： Kohji Tokuyama
发明人： Kohji Tokuyama
IPC分类号： B41J2/19
摘要： A liquid discharge apparatus includes a liquid discharge head to discharge liquid, a liquid circulation path including the liquid discharge head, an exhaust path connected to the liquid circulation path on a downstream side of the liquid discharge head in a circulation direction of the liquid, and circuitry. The liquid circulation path circulates the liquid via the liquid discharge head. The circuitry opens and closes between the liquid circulation path and the exhaust path to exhaust bubbles in the liquid circulation path to an outside of the liquid circulation path through the exhaust path when the liquid is circulated in the liquid circulation path.
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公开(公告)号：US20220258470A1
公开(公告)日：2022-08-18
申请号：US17651155
申请日：2022-02-15
发明人： Akihiro TOYA , Kazuhiro KOBAYASHI , Yuki ARAKI , Shogo NAKADA , Taiki KONO
摘要： A liquid ejecting apparatus includes: a liquid ejecting head configured to eject a liquid; a liquid flowing portion coupled to the liquid ejecting head and configured to flow the liquid; and a frame that houses the liquid ejecting head and the liquid flowing portion. The frame is provided with a passage hole configured to pass the liquid flowing portion along a depth direction. when viewed in the depth direction, a portion of the liquid flowing portion disposed outside the passage hole is configured to be deformed.
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公开(公告)号：US11383517B2
公开(公告)日：2022-07-12
申请号：US17067095
申请日：2020-10-09
发明人： Shiro Yazaki
摘要： A liquid ejecting head includes a flow path forming substrate in which a pressure generating chamber which communicates with a nozzle which ejects a liquid is formed by a partitioning wall, and a piezoelectric actuator in which a first electrode, a piezoelectric layer, and a second electrode are laminated, in which the piezoelectric layer includes a region which is interposed between the first electrode and the second electrode in a lamination direction, and in which when viewed in plan view from the lamination direction, the region overlaps at least a portion of the edges of each side of an opening of the pressure generating chamber on the piezoelectric actuator side and does not overlap one of the first electrode and the second electrode in at least a portion of the opening.
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公开(公告)号：US11376863B2
公开(公告)日：2022-07-05
申请号：US16857795
申请日：2020-04-24
摘要： A liquid ejecting head has a laminated flow path member on which a supply flow path for individually supplying a plurality of liquids to an element substrate and a collection flow path for individually collecting the liquids are formed. The supply flow path includes first and second common supply flow paths for horizontally leading first and second liquids to positions corresponding to a plurality of element substrates. The first and second common supply flow paths are formed in the same layer of the laminated flow path member. The collection flow path includes a first common collection flow path for horizontally collecting the first liquid and a second common collection flow path for horizontally collecting the second liquid from positions corresponding to the plurality of element substrates. The first and second common collection flow paths are formed in the same layer of the laminated flow path member.
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公开(公告)号：US11345163B2
公开(公告)日：2022-05-31
申请号：US17265030
申请日：2019-07-15
申请人： SICPA HOLDING SA
发明人： Silvano Tori , Alessandro Scardovi , Tazio Sandri , Marco Sarti
摘要： An ink delivery system for at least one printing module comprising a closed-loop ink recirculation circuit and a vacuum discharge circuit, which is configured to produce a vacuum condition in the at least one printing module. A method for delivering ink to the at least one printing module is also disclosed.
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公开(公告)号：US11267248B2
公开(公告)日：2022-03-08
申请号：US16790373
申请日：2020-02-13
发明人： Shinya Komatsu , Keiji Matsumoto
摘要： A recording device includes: an ink flow path that couples a liquid reservoir to the ejection head such that the ink stored in the liquid reservoir is supplied to the ejection head; a feeding pump exchangeably provided in the ink flow path and configured to feed the ink toward the ejection head; a deaerator provided in the ink flow path; a vacuum level adjustment mechanism configured to adjust a vacuum level in the deaerator; and a control portion that controls the vacuum level adjustment mechanism to adjust the vacuum level in the deaerator in accordance with a status of an operation to be executed.
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公开(公告)号：US11254140B2
公开(公告)日：2022-02-22
申请号：US16881476
申请日：2020-05-22
发明人： Hiroshi Katayama , Shohei Koide , Keita Sugiura , Keita Hirai
摘要： A liquid discharge head includes: first and second common channels extending in a first direction; and individual channels including pressure chambers and nozzles. Each of the individual channels includes: a supply portion; a descender portion extending in a second direction; and a return portion extending in a third direction. The return portion includes: a throttle portion; and a wide portion. Each of the nozzles overlaps with the wide portion. A relationship of L2>L1 is satisfied, wherein L1 is a distance in the third direction from a center of each of the nozzles to a throttle starting position, and L2 is a distance in the third direction passing through a center in a cross section of the descender portion and ranging from a center line parallel to the second direction to the center of each of the nozzles.
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