公开(公告)号：US07517056B2

公开(公告)日：2009-04-14

申请号：US11352678

申请日：2006-02-13

申请人： Elizabeth A. Fellner ,  James Pingel ,  Matthew David Giere ,  Satya Prakash ,  David W Jenkins ,  James A Feinn ,  Arun K Agarwal ,  Julie J Cox ,  Jules G Moritz ,  Ozgur Yildirim

发明人： Elizabeth A. Fellner ,  James Pingel ,  Matthew David Giere ,  Satya Prakash ,  David W Jenkins ,  James A Feinn ,  Arun K Agarwal ,  Julie J Cox ,  Jules G Moritz ,  Ozgur Yildirim

IPC分类号： B41J2/05

CPC分类号： B41J2/1404 ,  B41J2002/14387 ,  B41J2002/14403

摘要： A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction. The fluid restriction has a fluid restriction parameter defined as (2*W+2*H)*L/(H*W), wherein W is a width of the fluid restriction, H is a height of the fluid restriction, and L is a length of the fluid restriction. As such, the fluid restriction parameter is in a range of 1.5 to 5.75.

摘要翻译： 流体喷射装置包括流体室，与流体室连通的流体限制器，以及与流体限制件连通的流体通道。 流体限制具有限定为（2 * W + 2 * H）* L /（H * W）的流体限制参数，其中W是流体限制的宽度，H是流体限制的高度，L是 流体限制的长度。 因此，流体限制参数在1.5至5.75的范围内。

公开(公告)号：US07431434B2

公开(公告)日：2008-10-07

申请号：US11140802

申请日：2005-05-31

申请人： Arun K Agarwal ,  Julie J Cox ,  Jules G Moritz ,  Ozgur Yildirim

发明人： Arun K Agarwal ,  Julie J Cox ,  Jules G Moritz ,  Ozgur Yildirim

IPC分类号： B41J2/05

CPC分类号： B41J2/1404 ,  B41J2002/14177 ,  B41J2002/14387 ,  B41J2002/14403

摘要： A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction, wherein a width of the fluid restriction is in a range of approximately 8 microns to approximately 16 microns, and a length of the fluid restriction is in a range of approximately 5 microns to approximately 20 microns.

摘要翻译： 流体喷射装置包括流体室，与流体室连通的流体限制器，以及与流体限制器连通的流体通道，其中流体限制件的宽度在大约8微米至大约16微米的范围内， 流体限制的长度在约5微米至约20微米的范围内。

公开(公告)号：US06371596B1

公开(公告)日：2002-04-16

申请号：US09386580

申请日：1999-08-30

申请人： Robert C. Maze ,  Timothy L Weber ,  Arun K Agarwal

发明人： Robert C. Maze ,  Timothy L Weber ,  Arun K Agarwal

IPC分类号： B41J214

CPC分类号： B41J2/1625 ,  B41J2/14016 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/162 ,  B41J2002/14475 ,  B41J2202/11

摘要： A printhead having reduced spray includes orifi from which ink is expelled by an ink ejector. The orifi employ an aperture at the outer surface of the orifice plate having an asymmetrical hourglass shape to cause the expelled ink drop to break off at the narrow end of the orifice aperture.

摘要翻译： 具有减少的喷雾的打印头包括墨水从墨喷射器排出的墨粉。 orifi在孔板的外表面具有不对称沙漏形状的孔，以使排出的墨滴在孔口的窄端处断裂。

公开(公告)号：US06227640B1

公开(公告)日：2001-05-08

申请号：US09302178

申请日：1999-04-29

申请人： Robert C. Maze ,  Todd A. Cleland ,  Arun K Agarwal ,  Mark A Buonanno

发明人： Robert C. Maze ,  Todd A. Cleland ,  Arun K Agarwal ,  Mark A Buonanno

IPC分类号： B41J2205

CPC分类号： B41J2/14129 ,  B41J2/1412 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49082 ,  Y10T29/49083 ,  Y10T29/49117 ,  Y10T29/49401

摘要： An inkjet printing device employs an inkjet printhead with a plurality of drop generators to eject drops of ink. Each drop generator includes a planar heater resistor, a protection layer having a first heating surface on the heater resistor and a second heating surface entirely surrounding the first heater surface on the heater resistor, and an ink ejection nozzle. The drop generator vaporizes ink at the first heating surface and ejects a drop of ink of a first mass from the nozzle when a first range of energies is applied to the heater resistor. The drop generator vaporizes ink at the first heating surface and the second heating surface and ejects a drop of ink of a second mass from the nozzle when a second range of energies is applied to the heater resistor.

公开(公告)号：US6130688A

公开(公告)日：2000-10-10

申请号：US393845

申请日：1999-09-09

申请人： Arun K Agarwal ,  Kit C Baughman ,  Jennifer M. Korngiebel ,  Neal W. Meyer ,  Harold Lee Van Nice ,  Salim Khasawinah

发明人： Arun K Agarwal ,  Kit C Baughman ,  Jennifer M. Korngiebel ,  Neal W. Meyer ,  Harold Lee Van Nice ,  Salim Khasawinah

IPC分类号： B41J2/14 ,  B41J2/05

CPC分类号： B41J2/1433 ,  B41J2/14016 ,  B41J2002/14475

摘要： A novel polymeric orifice plate for a printhead. The plate includes a recess in the top surface thereof which terminates at a position between the top and bottom plate surfaces. The recess communicates with a bore which passes through the remainder of the plate and terminates at the bottom surface thereof. The recess has an upper end with a first opening therein, a lower end with a second opening therein, and a side wall which is preferably oriented at a right angle relative to the top surface of the plate. The recess may also have a bottom wall at the lower end. The first opening is larger than the second opening. The application of physical force to the plate does not disturb the second opening in the recess which is "inset" and protected. This design insures proper ink drop trajectory and the generation of high-quality printed images.

摘要翻译： 一种用于打印头的新型聚合物孔板。 该板包括在其顶表面中的凹陷，其终止于顶板和底板表面之间的位置。 凹部与穿过板的其余部分的孔连通，并终止于其底表面。 凹部具有其上具有第一开口的上端，其中具有第二开口的下端和优选相对于板的顶表面成直角定向的侧壁。 该凹部也可以在下端具有底壁。 第一个开口大于第二个开口。 对板的物理力的施加不会妨碍“插入”并被保护的凹部中的第二开口。 这种设计确保了适当的墨滴轨迹和高质量打印图像的产生。