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公开(公告)号：US20190111685A1
公开(公告)日：2019-04-18
申请号：US16114627
申请日：2018-08-28
发明人： Mitsunobu HONDA
IPC分类号： B41J2/165
CPC分类号： B41J2/16552 , B41J2/16508 , B41J2/16538 , B41J2/16541 , B41J2/16544 , B41J2/16585 , B41J2002/16502 , B41J2002/16558
摘要： A head cleaning mechanism includes a recording head and a wiper. The recording head includes an ink ejection face having an ink ejection region where a plurality of ink ejection openings for ejecting ink onto a recording medium are open. The wiper wipes the ink ejection face in a predetermined direction. The ink ejection face has, downstream of the ink ejection region in the wiping direction, a depressed portion extending in the head width direction perpendicular to the wiping direction. The depressed portion includes an upstream side inclined face which inclines upward from the ink ejection face to the downstream side in the wiping direction, and a downstream side inclined face which is arranged downstream of the upstream side inclined face in the wiping direction and which inclines downward to the downstream side in the wiping direction.
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公开(公告)号：US20180345671A1
公开(公告)日：2018-12-06
申请号：US15987495
申请日：2018-05-23
发明人： Tatsuhiko YOSHII
IPC分类号： B41J2/165
CPC分类号： B41J2/16552 , B41J2/1721 , B41J2/175 , B41J2/17509 , B41J2/17513 , B41J2/1752 , B41J2/17553 , B41J2/17566 , B41J2/19 , B41J13/00 , B41J29/13 , B41J2002/16558 , B41J2002/17573 , B41J2002/17579
摘要： The supply liquid tank unit of the disclosure includes a supply liquid tank, and a detection sensor. The detection sensor detects a liquid level of liquid in the supply liquid tank. The supply liquid tank includes a first chamber provided with an inflow port, a second chamber provided with an outflow port, a partition wall for partitioning the first chamber and the second chamber from each other, and a lower communicating path which is formed from a lower end of the partition wall and a lower surface of the supply liquid tank and which makes the first chamber and the second chamber communicating with each other. The detection sensor detects a liquid level of the liquid in the second chamber and is placed above the lower end of the partition wall.
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公开(公告)号：US20180264821A1
公开(公告)日：2018-09-20
申请号：US15913142
申请日：2018-03-06
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16544 , B41J2/16552 , B41J2002/1655 , B41J2002/16558 , B41P2235/24
摘要： A wiping member is configured to wipe a nozzle forming surface of a liquid ejecting head, which has nozzles through which a liquid is ejected, in a first direction. The wiping member includes a fibrous material and is configured to satisfy the following: μa+3σa≤μf+3σf where μf is an average of sizes of spaces between fibers in the first direction, σf is a standard deviation of the sizes of the spaces, μa is an average of sizes of aggregation substances formed of a solute in the liquid adhered to the nozzle forming surface in the first direction, and σa is a standard deviation of the sizes of the aggregation substances.
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公开(公告)号：US20180194141A1
公开(公告)日：2018-07-12
申请号：US15850917
申请日：2017-12-21
发明人： Takuma ARAKI , Kenichi SATAKE , Yasutaka INUI
IPC分类号： B41J2/165
CPC分类号： B41J2/16552 , B41J2/16508 , B41J2/16538 , B41J2/16544 , B41J2/16585 , B41J2002/16558
摘要： A recording head is provided with an ink ejection surface and a cleaning liquid supply surface. The ink ejection surface includes a nozzle region in which a plurality of ink ejection nozzles for ejecting ink onto a recording medium are open. The cleaning liquid supply surface is provided, with respect to the nozzle region, on an upstream side in a wiping direction in which a wiper wipes the ink ejection surface, and a plurality of cleaning liquid supply ports for supplying a cleaning liquid are open through the cleaning liquid supply surface. On the cleaning liquid supply surface, at least in a region including the cleaning liquid supply ports, a hydrophilic region having wettability with respect to water higher than that of the ink ejection surface is formed substantially evenly across an entire region in a width direction thereof orthogonal to the wiping direction.
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公开(公告)号：US10000062B2
公开(公告)日：2018-06-19
申请号：US15452523
申请日：2017-03-07
发明人： Kazuyuki Fujioka
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16508 , B41J2/16517 , B41J2/16526 , B41J2/16552 , B41J2002/16558 , B41J2002/16594
摘要： A liquid ejecting apparatus includes a liquid ejecting unit having nozzles able to eject a liquid to a medium, a wiping unit able to wipe the liquid ejecting unit, a waste liquid receiving unit which receives a waste liquid which is discharged by a maintenance operation for maintaining the liquid ejecting unit, at a position facing the liquid ejecting unit, and a collection unit which comes in contact with the waste liquid receiving unit to collect the waste liquid which is received by the waste receiving unit, in which the wiping unit comes in contact with the collection unit to wipe the waste liquid which is collected by the collection unit.
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公开(公告)号：US20180154640A1
公开(公告)日：2018-06-07
申请号：US15826185
申请日：2017-11-29
IPC分类号： B41J2/165
CPC分类号： B41J2/16552 , B41J2/16505 , B41J2/16517 , B41J2/16535 , B41J2002/16558 , B41J2002/16591
摘要： An inkjet recording apparatus includes an ink ejection surface and a cleaning liquid nozzle. The ink ejection surface has an ink ejection port through which ink is ejected. The cleaning liquid nozzle has a cleaning liquid supply port through which cleaning liquid for cleaning the ink ejection surface is supplied. In the cleaning liquid nozzle, a concave meniscus is formed on a surface of the cleaning liquid.
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公开(公告)号：US20180147851A1
公开(公告)日：2018-05-31
申请号：US15806414
申请日：2017-11-08
发明人： Yasuko TAKAORI , Noriaki OZAWA
CPC分类号： B41J2/16552 , B41J2/16535 , B41J2/16538 , B41J2/16585 , B41J2002/16558 , C09D9/04
摘要： A water-based cleaning liquid for inkjet recording apparatus use contains at least 0.10% by mass and no greater than 10.00% by mass of a nonionic surfactant, at least 0.50% by mass and no greater than 30.00% by mass of a deliquescent agent, and a pH adjuster. The nonionic surfactant contains polyoxyalkylene alkylamine. The deliquescent agent includes at least one of sorbitol, trimethylolpropane, and 1,3-bis(2-hydroxyethyl)-5,5-dimethylhydantoin. The pH adjuster includes an alkali metal salt. The water-based cleaning liquid for inkjet recording apparatus use has a pH of at least 7.5 and no greater than 8.5.
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公开(公告)号：US09925779B2
公开(公告)日：2018-03-27
申请号：US15001876
申请日：2016-01-20
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16552 , B41J2002/16555 , B41J2002/16558 , B41J2002/1657
摘要： A liquid ejecting apparatus includes a liquid ejecting unit having nozzles able to eject a first liquid to a medium; and a fluid ejecting device having ejection ports able to eject a fluid including a second liquid to the liquid ejecting unit, in which the fluid ejecting device performs, as a maintenance operation of the liquid ejecting unit, a first fluid ejection of ejecting a fluid including small droplets of the second liquid that are smaller than a nozzle opening to an opening region in which the nozzles of the liquid ejecting unit open, and a second fluid ejection of ejecting a fluid including droplets of the second liquid in which the smallest droplets are larger than the small droplets to the liquid ejecting unit.
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公开(公告)号：US09789692B2
公开(公告)日：2017-10-17
申请号：US15230763
申请日：2016-08-08
发明人： Kazuyuki Fujioka , Ryoji Fujimori
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16544 , B41J2/16552 , B41J2002/1655 , B41J2002/16558
摘要： A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a wiping member with a lengthwise shape that is able to contact the nozzle surface, a contact portion which is able to contact the opposite side from a side at which the wiping member contacts the nozzle surface, and a transport mechanism which transports the wiping member, in which the contact portion has a first contact portion which is separated from the wiping member when the wiping member is transported by the transport mechanism and which contacts the wiping member when the wiping member is caused to contact the nozzle surface, and a second contact portion which contacts the wiping member when the wiping member is transported by the transport mechanism.
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10.发明申请公开(公告)号：US20170274660A1
公开(公告)日：2017-09-28
申请号：US15462407
申请日：2017-03-17
发明人： Seiko HAMAMOTO , Toshio KUMAGAI , Hiroshi ASAWA
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16538 , B41J2/16552 , B41J2002/16558 , B41J2002/16594 , B41J2025/008
摘要： A cleaning liquid supplying apparatus includes a first storage section, a pressure-accumulating second storage section, a plurality of cleaning liquid ejecting sections, a liquid sending section, a plurality of individual flow channel opening/closing sections, and a control section. The first storage section stores cleaning liquid. The cleaning liquid ejecting sections are connected to the second storage section via a plurality of individual flow channels having upstream ends located at positions where the upstream ends are open to a liquid reservoir when a predetermined amount of the cleaning liquid is stored in the second storage section. The liquid sending section is provided midway along a first flow channel and sends the cleaning liquid in the first storage section to the second storage section. The individual flow channel opening/closing sections open/close the respective individual flow channels. The control section controls the liquid sending section so that a pressure in an air reservoir becomes a predetermined pressure.
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