公开(公告)号：US20150054878A1

公开(公告)日：2015-02-26

申请号：US13973794

申请日：2013-08-22

Applicant: XEROX CORPORATION

Inventor： Curtis Douglass Keller ,  Gautam Dhar ,  David Lyell Knierim ,  Chad David Freitag ,  Jonathan Robert Brick ,  Douglas Dean Darling ,  Nasser Alavizadeh ,  Bradford Stewart ,  William Bruce Weaver

IPC: B41J2/045

CPC classification number: B41J2/04563 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/1707 ,  B41J2/17593

Abstract: Print head jet stack heating and temperature measurement systems and methods are disclosed that both heat the jet stack and determine a temperature of the jet stack. The heating and temperature determination are performed by a flex circuit that includes multiple layers. One of the layers heats the jet stack and another one of the layers provides data that determines the temperature of the jet stack. The heating layer and the temperature sensing layer are separated by an insulative material in the flex circuit. The temperature of the jet stack can be sent to a print head controller that then determines whether to increase or decrease the temperature of the jet stack.

Abstract translation: 公开了打印头喷射器堆加热和温度测量系统和方法，其均加热喷射叠层并确定喷射叠层的温度。 加热和温度测定由包括多层的柔性电路进行。 其中一个层加热喷射堆叠，另一个层提供确定喷射堆的温度的数据。 加热层和感温层由柔性电路中的绝缘材料分开。 喷射堆叠的温度可以被发送到打印头控制器，打印头控制器然后确定是否增加或降低喷射叠层的温度。

公开(公告)号：US20140362135A1

公开(公告)日：2014-12-11

申请号：US13914261

申请日：2013-06-10

Applicant: Xerox Corporation

Inventor： Takahiro Peter Terayama ,  Douglas Dean Darling ,  Russell J. Watt ,  Terrance Lee Stephens ,  James Dudley Padgett ,  Daniel Mark Platt ,  Brian Edward Williams ,  Monica Louise Maestas ,  Kenneth Eugene Strohmeyer, JR. ,  David L. Knierem ,  John Milton Brookfield

IPC: B41J2/06

CPC classification number: B41J2/04526 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/2135

Abstract: A method for operating an inkjet printer includes identifying a pattern of ink drops ejected from an inkjet with reference to image data for a printed image, identifying a waveform component for an electrical signal operating the inkjet to eject an ink drop in the pattern of ink drops with reference to at least a portion of the image data, and generating the electrical signal with the identified waveform component to eject the ink drop in the pattern of ink drops at a first velocity onto a first location of an image receiving surface.

Abstract translation: 一种用于操作喷墨打印机的方法，包括根据打印图像的图像数据识别从喷墨喷射的墨滴的图案，识别操作喷墨的电信号的波形分量，以喷出墨滴图案中的墨滴 参考图像数据的至少一部分，并且产生具有所识别的波形分量的电信号，以将第一速度的墨滴图案中的墨滴喷射到图像接收表面的第一位置上。

公开(公告)号：US10220614B1

公开(公告)日：2019-03-05

申请号：US15679578

申请日：2017-08-17

Applicant: XEROX CORPORATION

Inventor： Douglas Dean Darling ,  Reid W. Gunnell ,  Brian Edward Williams

IPC: B41J2/045 ,  B41J2/21 ,  G01R19/25 ,  B41J2/04

Abstract: An inkjet printhead including an inkjet configured to eject drops of ink in response to receiving an electrical signal, a memory configured to store image data, and a processor operatively coupled to the inkjet and the memory. The processor receives the image data and determines a period of latency of the inkjet printhead. When the period of latency is within a predetermined timeframe, the processor increases a voltage of the electrical signal to a second voltage for an initial number of drops to eject the drops of ink in a pattern of printed ink drops with reference to at least a portion of the image data and reduce the voltage of the electrical signal after the initial number of drops to eject drops of ink in a pattern of printed ink drops with reference to a remaining portion of the image data, and generates the electrical signal.

公开(公告)号：US10046558B1

公开(公告)日：2018-08-14

申请号：US15680003

申请日：2017-08-17

Applicant: XEROX CORPORATION

Inventor： Douglas Dean Darling

IPC: B41J2/045

Abstract: A method for recovering missing inkjets in a printhead including determining an inkjet in the printhead is not ejecting ink, purging degassed ink into the printhead, adjusting a pressure in the printhead so that ink drools out of an aperture of each nozzle of the printhead, repeatedly applying a non-firing waveform at a frequency for a predetermined amount of time to the printhead while the ink drools out of the aperture of each nozzle of the printhead, and after the predetermined amount of time, adjusting the pressure in the printhead to a normal printhead pressure.

公开(公告)号：US09016816B2

公开(公告)日：2015-04-28

申请号：US13914261

申请日：2013-06-10

Applicant: Xerox Corporation

Inventor： Takahiro Peter Terayama ,  Douglas Dean Darling ,  Russell J. Watt ,  Terrance Lee Stephens ,  James Dudley Padgett ,  Daniel Mark Platt ,  Brian Edward Williams ,  Monica Louise Maestas ,  Kenneth Eugene Strohmeyer, Jr. ,  David L. Knierim ,  John Milton Brookfield

IPC: B41J29/38 ,  B41J2/045 ,  B41J2/21

CPC classification number: B41J2/04526 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/2135

Abstract: A method for operating an inkjet printer includes identifying a pattern of ink drops ejected from an inkjet with reference to image data for a printed image, identifying a waveform component for an electrical signal operating the inkjet to eject an ink drop in the pattern of ink drops with reference to at least a portion of the image data, and generating the electrical signal with the identified waveform component to eject the ink drop in the pattern of ink drops at a first velocity onto a first location of an image receiving surface.

Abstract translation: 一种用于操作喷墨打印机的方法，包括根据打印图像的图像数据识别从喷墨喷射的墨滴的图案，识别操作喷墨的电信号的波形分量，以喷出墨滴图案中的墨滴 参考图像数据的至少一部分，并且产生具有所识别的波形分量的电信号，以将第一速度的墨滴图案中的墨滴喷射到图像接收表面的第一位置上。

公开(公告)号：US10328691B2

公开(公告)日：2019-06-25

申请号：US15898129

申请日：2018-02-15

Applicant: XEROX CORPORATION

Inventor： Curtis Douglass Keller ,  Gautam Dhar ,  David Lylell Knierim ,  Chad David Freitag ,  Jonathan Robert Brick ,  Douglas Dean Darling ,  Nasser Alavizadeh ,  Bradford Stewart ,  William Bruce Weaver

IPC: B41J2/045 ,  B41J2/17 ,  B41J2/175

Abstract: A print head has a jet stack, a jet stack heating and temperature measuring element thermally connected to the jet stack, the jet stack heating and temperature measuring element including: a first, etched copper layer having heat spreading characteristics and including a resistive heat source electrically connected in series to a voltage source and a switch; an electrically insulative on a back side of the first copper layer; and a second, etched copper layer on a side of the electrically insulative layer opposite the first copper layer, the second copper layer having a temperature sensing element to sense a temperature of the print head without a thermistor, the temperature sensing element connected in series with a voltage source and a transistor. A print head may use a thermistor but the heat spreading layer eliminates the need for a heat sink to attach to the print head.

公开(公告)号：US09931840B2

公开(公告)日：2018-04-03

申请号：US13973794

申请日：2013-08-22

Applicant: XEROX CORPORATION

Inventor： Curtis Douglass Keller ,  Gautam Dhar ,  David Lyell Knierim ,  Chad David Freitag ,  Jonathan Robert Brick ,  Douglas Dean Darling ,  Nasser Alavizadeh ,  Bradford Stewart ,  William Bruce Weaver

IPC: B41J2/045 ,  B41J2/17 ,  B41J2/175

CPC classification number: B41J2/04563 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/1707 ,  B41J2/17593

Abstract: Print head jet stack heating and temperature measurement systems and methods are disclosed that both heat the jet stack and determine a temperature of the jet stack. The heating and temperature determination are performed by a flex circuit that includes multiple layers. One of the layers heats the jet stack and another one of the layers provides data that determines the temperature of the jet stack. The heating layer and the temperature sensing layer are separated by an insulative material in the flex circuit. The temperature of the jet stack can be sent to a print head controller that then determines whether to increase or decrease the temperature of the jet stack.

公开(公告)号：US09849689B1

公开(公告)日：2017-12-26

申请号：US15332620

申请日：2016-10-24

Applicant: XEROX CORPORATION

Inventor： Reid W. Gunnell ,  Nasser Alavizadeh ,  Douglas Dean Darling ,  Walter Sean Harris ,  Megan Schaffer ,  David L. Knierim

IPC: B41J2/17 ,  B41J2/175 ,  B41J2/19 ,  B41J2/18

CPC classification number: B41J2/17596 ,  B41J2/175 ,  B41J2/18 ,  B41J2/19

Abstract: A method of filling a print head includes drawing a vapor into an empty print head to displace any air in the print head and filling the print head with ink. A method of filling a print head includes connecting a print head to a vacuum pump using a first valve, to a liquid supply using a second valve, and to an ink supply using a third valve, opening the first and second valves, applying vacuum to the print head and liquid supply using the vacuum pump, causing the liquid to generate a vapor that moves into the print head, closing the first valve and the second valve, and opening the third valve to move ink into the print head.

公开(公告)号：US09004661B2

公开(公告)日：2015-04-14

申请号：US13964851

申请日：2013-08-12

Applicant: Xerox Corporation

Inventor： John David Means ,  Jonathan Robert Brick ,  Jeremiah Dylan Zimmerman ,  Douglas Dean Darling ,  Joseph Andrew Broderick ,  Jeffrey Thomas Flynn

IPC: B41J2/18 ,  B41J2/19

CPC classification number: B41J2/19 ,  B41J2/1652 ,  B41J2/17513

Abstract: The disclosed print head has a two-chamber main reservoir that decouples wasted ink and purge volume in print heads. The two-chamber structure of the print head allows for varying flow of ink through the print head's internal manifolds without varying the wasted ink out of the jet stack. The main reservoir of the print head includes a recirculation chamber and an incoming ink chamber. A vacuum is applied to a vent in the recirculation chamber and a pressure can also be applied to a vent in the incoming ink chamber to cause bubbles in the jet stack to move into the recirculation chamber and be removed through the recirculation chamber vent.

Abstract translation: 所公开的打印头具有双腔主存储器，其分离打印头中的废墨和清洗量。 打印头的两室结构允许通过打印头的内部歧管改变墨水的流动，​​而不会将浪费的墨水从喷射叠层中移出。 打印头的主容器包括再循环室和进入的油墨室。 真空被施加到再循环室中的通风口，并且还可以将压力施加到进入的油墨室中的通风口，以使喷射叠层中的气泡移动到再循环室中，并通过再循环室通气口去除。

公开(公告)号：US20150042735A1

公开(公告)日：2015-02-12

申请号：US13964851

申请日：2013-08-12

Applicant: XEROX CORPORATION

Inventor： John David Means ,  Jonathan Robert Brick ,  Jeremiah Dylan Zimmerman ,  Douglas Dean Darling ,  Joseph Andrew Broderick ,  Jeffrey Thomas Flynn

IPC: B41J2/19

CPC classification number: B41J2/19 ,  B41J2/1652 ,  B41J2/17513

Abstract: The disclosed print head has a two-chamber main reservoir that decouples wasted ink and purge volume in print heads. The two-chamber structure of the print head allows for varying flow of ink through the print head's internal manifolds without varying the wasted ink out of the jet stack. The main reservoir of the print head includes a recirculation chamber and an incoming ink chamber. A vacuum is applied to a vent in the recirculation chamber and a pressure can also be applied to a vent in the incoming ink chamber to cause bubbles in the jet stack to move into the recirculation chamber and be removed through the recirculation chamber vent.

Abstract translation: 所公开的打印头具有双腔主存储器，其分离打印头中的废墨和清洗量。 打印头的两室结构允许通过打印头的内部歧管改变墨水的流动，​​而不会将浪费的墨水从喷射叠层中移出。 打印头的主容器包括再循环室和进入的油墨室。 真空被施加到再循环室中的通风口，并且还可以将压力施加到进入的油墨室中的通风口，以使喷射叠层中的气泡移动到再循环室中，并通过再循环室通气口去除。