公开(公告)号：US06168256A

公开(公告)日：2001-01-02

申请号：US09222752

申请日：1998-12-29

申请人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Klaus-Dieter Bier ,  Walter S. Stevens

发明人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Klaus-Dieter Bier ,  Walter S. Stevens

IPC分类号： B41J2165

CPC分类号： B41J2/16552 ,  B41J2/185

摘要： Self-cleaning printer with reverse fluid flow and method of assembling the printer. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes an oscillatable septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the oscillatable septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to clean the contaminant from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid.

摘要翻译： 具有反向流体流动的自清洁打印机和组装打印机的方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的可摆动隔膜，用于在其间限定间隙。 可摆动隔膜的存在加速流体通过间隙的流动以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口清洁污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。

公开(公告)号：US06286929B1

公开(公告)日：2001-09-11

申请号：US09222409

申请日：1998-12-29

申请人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Klaus-Dieter Bier ,  Walter S. Stevens

发明人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Klaus-Dieter Bier ,  Walter S. Stevens

IPC分类号： B41J2165

CPC分类号： B41J2/16552 ,  B41J2/16585 ,  B41J2/185

摘要： A self-cleaning ink jet printer with oscillating septum and ultrasonics and method of assembling the printer. The printer has a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes an oscillatable septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to “sweep” the contaminant from the surface and/or orifice. Also included is an ultrasonic transducer in communication with the fluid for generating a plurality of pressure waves in the fluid for dislodging the contaminant. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid.

摘要翻译： 具有振动隔膜和超声波的自清洁喷墨打印机以及组装打印机的方法。 打印机具有在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的可摆动隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口“扫”污染物。 还包括与流体连通的超声波换能器，用于在流体中产生多个压力波，用于移除污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。

公开(公告)号：US06183058B2

公开(公告)日：2001-02-06

申请号：US09407451

申请日：1999-09-28

申请人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Omid A. Moghadam ,  Walter S. Stevens

发明人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle ,  Omid A. Moghadam ,  Walter S. Stevens

IPC分类号： B41J2165

CPC分类号： B41J2/16552 ,  B41J2/16585 ,  B41J2/185

摘要： Self-cleaning printer system with reverse fluid flow and method of assembling the printer system. The printer system comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes a septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to clean the contaminant from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid. In addition, a valve system in fluid communication with the gap is operable to direct flow of the fluid through the gap in a first direction and then in a second direction opposite the first direction to enhance cleaning effectiveness. Moreover, the print head itself has integral passageways formed therein for conducting the flow of fluid to the surface of the print head.

摘要翻译： 具有反向流体流动的自清洁打印机系统和组装打印机系统的方法。 打印机系统包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口清洁污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。 此外，与间隙流体连通的阀系统可操作以引导流体在第一方向上流过间隙，然后在与第一方向相反的第二方向上引导流体，以提高清洁效果。 此外，打印头本身具有形成在其中的整体通道，用于将流体流动导向打印头的表面。

公开(公告)号：US06183057B2

公开(公告)日：2001-02-06

申请号：US09206272

申请日：1998-12-04

申请人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle

发明人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle

IPC分类号： B41J2165

CPC分类号： B41J2/16585 ,  B41J2/16552

摘要： Self-cleaning printer with reverse fluid flow and ultrasonics and method of assembling the printer. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes a septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to clean the contaminant from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid. In addition, a valve system in fluid communication with the gap is operable to direct flow of the fluid through the gap in a first direction and then in a second direction opposite the first direction to enhance cleaning effectiveness. Moreover, an ultrasonic transducer induces pressure waves in the fluid to dislodge the contaminant and thus clean the surface and/or orifice.

摘要翻译： 具有反向流体和超声波的自清洁打印机以及组装打印机的方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口清洁污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。 此外，与间隙流体连通的阀系统可操作以引导流体在第一方向上流过间隙，然后在与第一方向相反的第二方向上引导流体，以提高清洁效果。 此外，超声换能器在流体中引起压力波，以排除污染物并因此清洁表面和/或孔。

公开(公告)号：US6142601A

公开(公告)日：2000-11-07

申请号：US205946

申请日：1998-12-04

申请人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle

发明人： Ravi Sharma ,  John A. Quenin ,  Christopher N. Delametter ,  Michael E. Meichle

IPC分类号： B08B3/04 ,  B41J2/165

CPC分类号： B41J2/16552 ,  B41J2/16585

摘要： Self-cleaning printer with reverse fluid flow and method of assembling the printer. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Contaminant may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the contaminant from the surface and/or orifice. The cleaning assembly includes a septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the contaminant to clean the contaminant from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the contaminant is entrained in the fluid. A filter is provided to separate the contaminant from the fluid. In addition, a valve system in fluid communication with the gap is operable to direct flow of the fluid through the gap in a first direction and then in a second direction opposite the first direction to enhance cleaning effectiveness.

摘要翻译： 具有反向流体流动的自清洁打印机和组装打印机的方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 污染物可能驻留在表面上，也可能完全或部分地堵塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁污染物。 清洁组件包括与表面或孔相对设置的隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力作用在污染物上以从表面和/或孔口清洁污染物。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当表面和/或孔被清洁时，污染物被夹带在流体中。 提供过滤器以将污染物与流体分离。 此外，与间隙流体连通的阀系统可操作以引导流体在第一方向上流过间隙，然后在与第一方向相反的第二方向上引导流体，以提高清洁效果。

公开(公告)号：US06350007B1

公开(公告)日：2002-02-26

申请号：US09174796

申请日：1998-10-19

申请人： Michael Meichle ,  John A. Quenin ,  Ravi Sharma ,  Christopher N. Delametter

发明人： Michael Meichle ,  John A. Quenin ,  Ravi Sharma ,  Christopher N. Delametter

IPC分类号： B41J2165

CPC分类号： B41J29/17 ,  B41J2/16552 ,  B41J2/16585 ,  B41J2/185 ,  B41J2002/16567

摘要： Self-cleaning printer having ultrasonics and method of assembling same for cleaning a print head surface and ink ejection orifices. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Particulate matter may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the particulate matter from the surface and/or orifice. The cleaning assembly includes an ultrasonic transducer in communication with the fluid for generating ultrasonic vibrations causing pressure waves within the fluid. Presence of the pressure waves induces a hydrodynamic force in the fluid. This force acts against the particulate matter to clean the particulate matter from the surface and/or orifice. A pump is also provided for pumping the fluid from the surface and/or orifice as the surface and/or orifice is cleaned. As the surface and/or orifice is cleaned, the particulate matter is entrained in the fluid. A filter is provided to separate the particulate matter from the fluid.

摘要翻译： 具有超声波的自清洁打印机以及用于清洁打印头表面和喷墨孔的组装方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 颗粒物质可能驻留在表面上，并且也可以完全或部分地阻塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁颗粒物质。 清洁组件包括与流体连通的超声换能器，用于产生引起流体内的压力波的超声波振动。 压力波的存在引起流体中的流体动力。 该力作用于颗粒物质以从表面和/或孔口清洁颗粒物质。 还提供泵，用于当清洁表面和/或孔口时从表面和/或孔口泵送流体。 当清洁表面和/或孔时，颗粒物质被夹带在流体中。 提供过滤器以将颗粒物质与流体分离。

公开(公告)号：US6145952A

公开(公告)日：2000-11-14

申请号：US174794

申请日：1998-10-19

申请人： Ravi Sharma ,  Michael Meichle ,  Christopher N. Delametter ,  John A. Quenin

发明人： Ravi Sharma ,  Michael Meichle ,  Christopher N. Delametter ,  John A. Quenin

IPC分类号： B41J2/165 ,  B41J2/18 ,  B41J2/185

CPC分类号： B41J2/16552 ,  B41J2/16585

摘要： Self-cleaning printer and method of assembling same. The printer comprises a print head defining a plurality of ink channels therein, each ink channel terminating in an ink ejection orifice. The print head also has a surface thereon surrounding all the orifices. Particulate matter may reside on the surface and also may completely or partially obstruct the orifice. Therefore, a cleaning assembly is disposed relative to the surface and/or orifice for directing a flow of fluid along the surface and/or across the orifice to clean the particulate matter from the surface and/or orifice. The cleaning assembly includes a septum disposed opposite the surface or orifice for defining a gap therebetween. Presence of the septum accelerates the flow of fluid through the gap to induce a hydrodynamic shearing force in the fluid. This shearing force acts against the particulate matter to clean the particulate matter from the surface and/or orifice. A pump in fluid communication with the gap is also provided for pumping the fluid through the gap. As the surface and/or orifice is cleaned, the particulate matter is entrained in the fluid. A filter is provided to separate the particulate matter from the fluid.

摘要翻译： 自清洁打印机及其组装方法。 打印机包括在其中限定多个墨水通道的打印头，每个墨水通道终止于墨水喷射口。 打印头还具有围绕所有孔的表面。 颗粒物质可能驻留在表面上，并且也可以完全或部分地阻塞孔口。 因此，相对于表面和/或孔设置清洁组件，用于沿着表面和/或穿过孔引导流体流，以从表面和/或孔口清洁颗粒物质。 清洁组件包括与表面或孔相对设置的隔膜，用于在其间限定间隙。 隔垫的存在加速流体通过间隙的流动，以在流体中引起流体动力剪切力。 该剪切力抵抗颗粒物质从表面和/或孔口清洁颗粒物质。 还提供与间隙流体连通的泵，用于泵送流体通过间隙。 当清洁表面和/或孔时，颗粒物质被夹带在流体中。 提供过滤器以将颗粒物质与流体分离。

公开(公告)号：US6065825A

公开(公告)日：2000-05-23

申请号：US969299

申请日：1997-11-13

申请人： Constantine N. Anagnostopoulos ,  James M. Chwalek ,  John A. Lebens ,  Christopher N. Delametter ,  Walter S. Stevens

发明人： Constantine N. Anagnostopoulos ,  James M. Chwalek ,  John A. Lebens ,  Christopher N. Delametter ,  Walter S. Stevens

IPC分类号： B41J2/005 ,  B41J2/14 ,  G01D15/18

CPC分类号： B41J2/14451 ,  B41J2002/0055 ,  B41J2202/02

摘要： A printer having mechanically-assisted ink droplet separation and method of using same, for separating an ink meniscus from an ink nozzle orifice while clearing-away particulate matter from about the orifice. In a preferred embodiment of the invention, a heater surrounds an orifice formed by the nozzle, the orifice having an ink meniscus residing therein. As the heater heats the ink meniscus, surface tension of the ink meniscus decreases, thereby causing the ink meniscus to extend outwardly from the orifice to define an extended ink meniscus. A cutter, which is disposed near the orifice, includes a plate member disposed opposite an outside surface of the nozzle so as to define a passage between the outside surface and the plate member. The plate member has an opening aligned with the orifice and in communication with the passage. A gas pressure regulator in communication with the passage supplies pressurized gas into the passage, which gas flows along the passage an through the opening. As the gas flows through the opening, it impinges the extended ink meniscus to separate the extended ink meniscus from the orifice. As the extended ink meniscus separates from the orifice, it forms an ink droplet that travels to a receiver medium, so that an ink spot is placed onto the receiver medium. Moreover, as the gas flows through the opening, the gas clears-away particulate matter from about the orifice.

摘要翻译： 一种具有机械辅助墨滴分离的打印机及其使用方法，用于从墨喷嘴孔口分离墨水弯月面，同时从孔口周围清除颗粒物质。 在本发明的优选实施例中，加热器围绕由喷嘴形成的孔口，孔口具有驻留在其中的墨水弯月面。 当加热器加热油墨弯月面时，油墨弯月面的表面张力减小，从而使油墨弯月面从孔口向外延伸以限定延伸的油墨弯液面。 设置在孔口附近的切割器包括与喷嘴的外表面相对设置的板构件，以在外表面和板构件之间限定通道。 板构件具有与孔口对准并与通道连通的开口。 与通道连通的气体压力调节器将加压气体供应到通道中，该气体沿着通道A流过开口。 当气体流过开口时，其撞击延伸的墨水弯液面以将延伸的墨水弯液面与孔口分离。 随着延伸墨水弯月面与孔口分离，它形成一个墨滴，传送到接收介质，使得墨点被放置在接收介质上。 此外，当气体流过开口时，气体从孔口周围清除颗粒物质。

公开(公告)号：US06508542B2

公开(公告)日：2003-01-21

申请号：US09751483

申请日：2000-12-28

申请人： Ravi Sharma ,  Todd R. Griffin ,  Milton S. Sales ,  Christopher N. Delametter

发明人： Ravi Sharma ,  Todd R. Griffin ,  Milton S. Sales ,  Christopher N. Delametter

IPC分类号： B41J209

CPC分类号： B41J2/03 ,  B41J2/09 ,  B41J2/105 ,  B41J2002/031

摘要： An ink drop deflector mechanism is provided. The ink drop deflector mechanism includes an ink drop source and a path selection device operable in a first state to direct drops from the source along a first path and in a second state to direct drops from the source along a second path. The first and second paths diverge from the source. The mechanism also includes a system which applies force to drops travelling along at least one of the first and second paths with the force being applied in a direction so as to increase the divergence of the paths. The mechanism may include a gas source which generates a gas flow force that is applied in a direction that increases the divergence of the paths. The gas flow may be positioned between the first and second paths. The gas flow may be substantially laminar and interact with at least one of the first and second paths as the gas flow loses its coherence. The mechanism may also include a catcher with at least a portion of the system being positioned adjacent the catcher. Alternatively, at least a portion of the system may be integrally formed in the catcher.

公开(公告)号：US06588890B1

公开(公告)日：2003-07-08

申请号：US10023129

申请日：2001-12-17

申请人： Edward P. Furlani ,  Christopher N. Delametter ,  John A. Lebens ,  Ravi Sharma ,  James M. Chwalek

发明人： Edward P. Furlani ,  Christopher N. Delametter ,  John A. Lebens ,  Ravi Sharma ,  James M. Chwalek

IPC分类号： B41J2105

CPC分类号： B41J2/105 ,  B41J2/03 ,  B41J2/09 ,  B41J2202/16

摘要： Apparatus for controlling ink in a continuous inkjet printer in which a continuous stream of ink is emitted from a nozzle bore, including a reservoir containing pressurized ink; a rigid nozzle element defining an ink staging chamber and defining a nozzle bore in communication with the ink staging chamber arranged so as to establish a continuous flow of ink in a ink stream; ink delivery structure intermediate the reservoir and the ink staging chamber for communicating ink between the reservoir and defining first and second spaced ink delivery channels; and heat responsive bimorph flexible elements disposed in the first and second spaced ink delivery channels to control the flow of ink to the nozzle and thereby change the direction of ink from the nozzle.

摘要翻译： 用于控制连续喷墨打印机中的油墨的装置，其中连续的墨水流从喷嘴孔排出，包括含有加压油墨的储存器; 限定墨水分级室并限定与所述墨水分级室连通的喷嘴孔的刚性喷嘴元件，所述喷墨孔布置成在油墨流中建立连续的墨水流; 墨水输送结构位于储存器和墨水分级室之间，用于在储存器之间连通墨水并限定第一和第二间隔的墨水输送通道; 以及设置在第一和第二间隔油墨输送通道中的热响应双压电晶片柔性元件，以控制到喷嘴的油墨流动，从而改变来自喷嘴的油墨的方向。