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公开(公告)号：EP2043868B1
公开(公告)日：2013-01-02
申请号：EP07718922.3
申请日：2007-05-21
发明人： TSAI, Wen-Yuan , NAKAZAWA, Akira , MORGAN, John Douglas , WANG, Miao , MCAULIFFE, Patrick John , WORBOYS, David John , SILVERBROOK, Kia
IPC分类号： B41J2/175
CPC分类号： B41J2/19 , B41J2/17513 , B41J2/17556
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公开(公告)号：EP2043868A1
公开(公告)日：2009-04-08
申请号：EP07718922.3
申请日：2007-05-21
发明人： TSAI, Wen-Yuan , NAKAZAWA, Akira , MORGAN, John Douglas , WANG, Miao , MCAULIFFE, Patrick John , WORBOYS, David John , SILVERBROOK, Kia
IPC分类号： B41J2/175
CPC分类号： B41J2/19 , B41J2/17513 , B41J2/17556
摘要： An ink pressure regulator for regulating a hydrostatic pressure of ink supplied to an inkjet printhead, said regulator comprising: an ink chamber having an ink outlet for fluid communication with the printhead via an ink line; an air inlet open to atmosphere; a bubble outlet for bubbling air bubbles into the chamber, each air bubble comprising an air cavity trapped inside a film or a body of ink; and an air channel connecting the air inlet and the bubble outlet, wherein said bubble outlet is dimensioned to control a Laplace pressure of air bubbles drawn into said chamber as result of supplying ink to the printhead, thereby regulating a hydrostatic pressure of the ink.
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3.发明公开
公开(公告)号：EP1934054A1
公开(公告)日：2008-06-25
申请号：EP06760842.2
申请日：2006-07-10
发明人： MORGAN, John Douglas , KARPPINEN, Vesa , NAKAZAWA, Akira , MCAULIFFE, Patrick John , SILVERBROOK, Kia
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16511 , B41J2/16541 , B41J2/16585 , B41J2002/14435
摘要： A printhead maintenance assembly for maintaining a printhead in an operable condition is provided. The maintenance assembly comprises: (a) a maintenance roller having an elastically deformable contact surface for sealing engagement with an ink ejection face of the printhead; (b) an engagement mechanism for moving the roller between a first position in which the contact surface is sealingly engaged with the face, and a second position in which the contact surface is disengaged from the face; and (c) a cleaning mechanism for cleaning the contact surface. The cleaning mechanism comprises a motor for rotating the maintenance roller, and an ink removal system for removing ink from the contact surface when the maintenance roller is rotated.
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4.发明授权
公开(公告)号：EP1934054B1
公开(公告)日：2011-01-26
申请号：EP06760842.2
申请日：2006-07-10
发明人： MORGAN, John Douglas , KARPPINEN, Vesa , NAKAZAWA, Akira , MCAULIFFE, Patrick John , SILVERBROOK, Kia
IPC分类号： B41J2/165
CPC分类号： B41J2/16535 , B41J2/16511 , B41J2/16541 , B41J2/16585 , B41J2002/14435
摘要： A printhead maintenance assembly for maintaining a printhead in an operable condition is provided. The maintenance assembly comprises: (a) a maintenance roller having an elastically deformable contact surface for sealing engagement with an ink ejection face of the printhead; (b) an engagement mechanism for moving the roller between a first position in which the contact surface is sealingly engaged with the face, and a second position in which the contact surface is disengaged from the face; and (c) a cleaning mechanism for cleaning the contact surface. The cleaning mechanism comprises a motor for rotating the maintenance roller, and an ink removal system for removing ink from the contact surface when the maintenance roller is rotated.
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公开(公告)号：EP2250023A1
公开(公告)日：2010-11-17
申请号：EP08714380.6
申请日：2008-03-12
摘要： An inkjet printer with a printhead and a conduit connected to the printhead. The conduit defines a flow path for the printing fluid and has an internal cross section configured such that the surface tension of printing fluid within it favors gas bubble growth along the conduit length over radial bubble growth that would fully occlude the flow path.
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公开(公告)号：EP2209644A1
公开(公告)日：2010-07-28
申请号：EP07815369.9
申请日：2007-10-16
发明人： MORGAN, John Douglas , WORBOYS, David John , WANG, Miao , MCAULIFFE, Patrick John , SILVERBROOK, Kia
IPC分类号： B41J2/175
CPC分类号： B41J2/17596
摘要： An inkjet printer that has a printhead for printing onto a media substrate, a reservoir for supplying ink to the printhead, a pump for drawing ink from the reservoir and pumping ink into the printhead and, a valve arrangement for selectively opening fluid communication between the pump and the printhead, and closing fluid communication between the pump and the printhead while opening fluid communication between the reservoir and the printhead.
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公开(公告)号：EP2094494A1
公开(公告)日：2009-09-02
申请号：EP06828019.7
申请日：2006-12-18
发明人： MORGAN, John Douglas , WANG, Miao , MCAULIFFE, Patrick John , WORBOYS, David John , SILVERBROOK, Kia
IPC分类号： B41J2/175
CPC分类号： B41J2/19 , B41J2/17513 , B41J2/17556
摘要： There is provided an ink pressure regulator for regulating a hydrostatic pressure of ink supplied to an inkjet printhead. The regulator comprises: an ink chamber having an ink outlet for fluid communication with the printhead via an ink line; an air inlet open to atmosphere; a bubble outlet for bubbling air bubbles into the chamber, each air bubble comprising an air cavity trapped inside a film or a body of ink; and an air channel connecting the air inlet and the bubble outlet. The bubble outlet is dimensioned to control a Laplace pressure of air bubbles drawn into the chamber as result of supplying ink to the printhead, thereby regulating a hydrostatic pressure of the ink.
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公开(公告)号：EP2094494B1
公开(公告)日：2012-12-12
申请号：EP06828019.7
申请日：2006-12-18
发明人： MORGAN, John Douglas , WANG, Miao , MCAULIFFE, Patrick John , WORBOYS, David John , SILVERBROOK, Kia
IPC分类号： B41J2/175
CPC分类号： B41J2/19 , B41J2/17513 , B41J2/17556
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公开(公告)号：EP2250023B1
公开(公告)日：2012-10-31
申请号：EP08714380.6
申请日：2008-03-12
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10.发明授权
公开(公告)号：EP1937480B1
公开(公告)日：2011-02-23
申请号：EP06760843.0
申请日：2006-07-10
发明人： KARPPINEN, Vesa , MORGAN, John Douglas , BULMAN, Jonathan Mark , JENSEN, David William , MCAULIFFE, Patrick John , SILVERBROOK, Kia , BROWN, Brian Robert
IPC分类号： B41J2/165
CPC分类号： B41J2/16585 , B41J2/16526
摘要： A method of removing particulates from an ink ejection face of a printhead is provided. The method comprises the steps of: (a) flooding the face with ink from the printhead, thereby dispersing the particulates into the flooded ink; and (b) transferring the flooded ink, including the particulates, onto a transfer surface moving past the face. Damage to the face is avoided since the transfer surface does not contact the face.
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