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公开(公告)号：US12059899B2
公开(公告)日：2024-08-13
申请号：US18339931
申请日：2023-06-22
Applicant: Memjet Technology Limited
Inventor： Brian Brown , Julie Hogan , Ronan Palliser , Keshu Nazneen , Juliette Le Hir , Rodney Hardy
CPC classification number: B41J2/145 , B41J2/04505 , B41J2/04586
Abstract: A method of printing an image from a print chip having plurality of horizontal nozzle rows. The method includes the steps of allocating first dot data for an image line of the image to nozzles in a first row portion of a first nozzle row; allocating second dot data for the image line to nozzles in a second row portion; sending the first and second dot data to the print chip and firing respective droplets. Some bits of the first dot data correspond to pixels of the image line aligned with the second row portion, and some bits of the second dot data correspond to pixels of the image line aligned with the first row portion.
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公开(公告)号：US20210070061A1
公开(公告)日：2021-03-11
申请号：US16951979
申请日：2020-11-18
Applicant: Memjet Technology Limited
Inventor： Garry Jackson , Norman Berry , Michael Hudson , Brian Brown , Samuel Mallinson , Geordie McBain
Abstract: An inkjet printhead includes: a fluid manifold having a base defining a plurality of fluid outlets and printhead chips attached to the base. Each printhead chip receives printing fluid from a set of the fluid outlets. All fluid outlets are flared with a respect to a width dimension of the printhead chips for facilitating removal of air bubbles.
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公开(公告)号：US20190061352A1
公开(公告)日：2019-02-28
申请号：US16110583
申请日：2018-08-23
Applicant: Memjet Technology Limited
Inventor： Geordie McBain , Samuel Mallinson , Brian Brown
Abstract: A capper for an inkjet printhead has a perimeter seal for sealing engagement with a capping surface of the printhead. The perimeter seal is formed from an auxetic material having a negative Poisson's ratio. The capper is suitable for capping printheads having capping surfaces containing non-unformities. The capper is especially suitable for capping pagewide inkjet printheads.
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公开(公告)号：US11820139B2
公开(公告)日：2023-11-21
申请号：US17467896
申请日：2021-09-07
Applicant: Memjet Technology Limited
Inventor： Julie Catherine Hogan , Ronan Palliser , John Sheahan , Brian Brown , Caitriona Forbes , Pat Lehane
IPC: B41J2/045
CPC classification number: B41J2/04573 , B41J2/04505 , B41J2/04541 , B41J2/04586
Abstract: A print chip includes: an elongate silicon substrate defining nominal leading and trailing longitudinal sides of the print chip; circuitry layers positioned on the silicon substrate; and a MEMS layer positioned on the circuitry layers. The MEMS layer includes a plurality of parallel nozzle rows, each nozzle row having a plurality of inkjet nozzle devices arranged in a main row portion and a dropped row portion offset from the main row portion. The circuitry layers include data latches configured to provide dot data for the inkjet nozzle devices. A first row of data latches is positioned adjacent a leading row of the main row portion, and a second row of data latches is positioned adjacent a trailing row of the dropped row portion.
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公开(公告)号：US11358395B2
公开(公告)日：2022-06-14
申请号：US16951979
申请日：2020-11-18
Applicant: Memjet Technology Limited
Inventor： Garry Jackson , Norman Berry , Michael Hudson , Brian Brown , Samuel Mallinson , Geordie McBain
Abstract: An inkjet printhead includes: a fluid manifold having a base defining a plurality of fluid outlets and printhead chips attached to the base. Each printhead chip receives printing fluid from a set of the fluid outlets. All fluid outlets are flared with a respect to a width dimension of the printhead chips for facilitating removal of air bubbles.
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Patent Agency Ranking
公开(公告)号：US20200171838A1
公开(公告)日：2020-06-04
申请号：US16784157
申请日：2020-02-06
Applicant: Memjet Technology Limited
Inventor： Garry Jackson , Norman Berry , Michael Hudson , Brian Brown , Samuel Mallinson , Geordie McBain
Abstract: A method of inkjet printing includes the steps of: (i) delivering ink to a printhead manifold having a longitudinal ink channel, one or printhead chips mounted to a floor of the printhead manifold and in fluid communication with the longitudinal ink channel, and a plurality of sealed air cavities positioned over the longitudinal ink channel for dampening pressure fluctuations in the ink; (ii) printing from the printhead chips; and (iii) replenishing the air cavities with air.
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公开(公告)号：US20190291427A1
公开(公告)日：2019-09-26
申请号：US16435389
申请日：2019-06-07
Applicant: Memjet Technology Limited
Inventor： Garry Jackson , Norman Berry , Michael Hudson , Brian Brown , Samuel Mallinson , Geordie McBain
Abstract: An inkjet printhead including: an elongate fluid manifold having a base defining a plurality of fluid outlets; and printhead chips attached to the base, each printhead chip receiving printing fluid from a plurality of the fluid outlets. All fluid outlets are laterally flared towards a side of a respective printhead chip.
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公开(公告)号：US20190092008A1
公开(公告)日：2019-03-28
申请号：US16141864
申请日：2018-09-25
Applicant: Memjet Technology Limited
Inventor： Samuel Mallinson , Brian Brown
IPC: B41J2/145
Abstract: A method of printing onto a surface of a cylinder having radius Rc using a stationary inkjet printhead. The method includes the steps of: rotating the cylinder at an angular velocity ωc of at least π radians per second; and ejecting ink droplets from the printhead at an ejection velocity in the range of 6 to 20 meters per second. The printhead has a print zone with a width Wp and first and second nozzle rows positioned distances d1 and d2 relative to a centerline of the print zone. The print zone and cylinder fulfil the relationship Wp/Rc≤0.2, and the first and second nozzle row ejects ink droplets at times T1 and T2, whereby T1=d1/Rcω; and T2=d2/Rcωc.
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公开(公告)号：US10589537B2
公开(公告)日：2020-03-17
申请号：US16435389
申请日：2019-06-07
Applicant: Memjet Technology Limited
Inventor： Garry Jackson , Norman Berry , Michael Hudson , Brian Brown , Samuel Mallinson , Geordie McBain
Abstract: An inkjet printhead including: an elongate fluid manifold having a base defining a plurality of fluid outlets; and printhead chips attached to the base, each printhead chip receiving printing fluid from a plurality of the fluid outlets. All fluid outlets are laterally flared towards a side of a respective printhead chip.
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公开(公告)号：US20180147832A1
公开(公告)日：2018-05-31
申请号：US15879327
申请日：2018-01-24
Applicant: MEMJET TECHNOLOGY LIMITED
Inventor： Angus North , Philip Palma , Brian Brown , Duncan McRae , Jognandan Prashar , Mile Jurevic , Sam Mallinson , Geordie McBain , Chia-An Lin , Sam Myers , Jeff Tsang , Benjamin Powell
CPC classification number: B41J2/04553 , B41J2/01 , B41J2/04586 , B41J2/07 , B41J2/155 , B41J2/16579 , B41J2/16585 , B41J2/21 , B41J11/001 , B41J2002/16529 , B41J2002/16591
Abstract: A method of multi-color printing in a single pass using a fixed pagewide array of monochrome inkjet printheads. The printheads are aligned with each other in a media feed direction and the method includes the steps of: feeding print media along the media feed direction past a first printhead positioned furthest upstream in the array, a third printhead downstream of the first printhead and a second printhead positioned furthest downstream in the array; printing a yellow ink onto the print media using the first printhead; printing a black ink onto the print media using the third printhead; and printing a cyan or magenta ink onto the print media using the second printhead.
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