公开(公告)号：US07556326B2

公开(公告)日：2009-07-07

申请号：US11241322

申请日：2005-09-30

申请人： David L. Knierim ,  Ivan McCracken

发明人： David L. Knierim ,  Ivan McCracken

IPC分类号： B41J2/195 ,  B41J29/38 ,  B41J25/308 ,  B41J29/393 ,  G01F23/00 ,  G01F23/24

CPC分类号： B41J2/17566 ,  G01F23/24

摘要： An ink level sensing system and method of sensing that includes a lower probe positioned in a lower portion of an ink reservoir, an upper probe positioned above the lower probe and extending upward to an upper portion of the ink reservoir, and an electrode positioned next to the lower and upper probes. An electrical signal is driven to the electrode and current flows are detected from the electrode to the lower and upper probes. The current flows to the lower and upper probes are compared to determine a level of ink in the ink reservoir.

摘要翻译： 一种墨水感测系统和感测方法，包括位于墨水储存器下部的下部探针，位于下部探针上方并向上延伸到墨水储存器上部的上部探针，以及位于墨水容器下部的电极 下探头和上探头。 电信号被驱动到电极，并且从电极到下探头和上探针检测电流。 比较流向下部和上部探针的电流以确定墨水容器中的墨水量。

公开(公告)号：US08550609B2

公开(公告)日：2013-10-08

申请号：US11986505

申请日：2007-11-21

申请人： David L. Knierim ,  Ernest Isreal Esplin ,  Michael Alan Fairchild

发明人： David L. Knierim ,  Ernest Isreal Esplin ,  Michael Alan Fairchild

IPC分类号： B41J2/175

CPC分类号： B41J2/17593 ,  B41J2002/17579

摘要： A solid ink printer includes a solid ink measurement system that helps ensure an adequate supply of solid ink is in the feed channels delivering solid ink to a melting device within a printer. The solid ink measurement system includes a driving electrode mounted along a substantial length of a first structure of a first solid ink feed channel, a sensing electrode mounted along a substantial length of a second structure of the first solid ink feed channel, the sensing electrode being opposite and generally parallel to the driving electrode, an AC voltage source coupled to the driving electrode to generate an electrical field emitted from the driving electrode, and a capacitance measurement circuit coupled to the sensing electrode to receive an electrical signal induced in the sensing electrode by the electrical field generated by the driving electrode, the capacitance measurement circuit being configured to identify an amount of solid ink in the first feed channel that corresponds to the electrical signal received from the sensing electrode.

公开(公告)号：US08382221B2

公开(公告)日：2013-02-26

申请号：US12164714

申请日：2008-06-30

申请人： Isaac S. Frazier ,  David L. Knierim ,  James Michael Bonicatto ,  Michael E. Norkitis

发明人： Isaac S. Frazier ,  David L. Knierim ,  James Michael Bonicatto ,  Michael E. Norkitis

IPC分类号： B41J2/195 ,  B41J29/393

CPC分类号： B41J2/17566 ,  B41J2002/17579

摘要： An ink level sensing system that exhibits good sensitivity is described herein. The system includes a first probe having a first active surface, a second probe having a second active surface facing the first active surface, a memory in which data indicative of a conductivity curve and command instructions are stored, and a processor configured to execute the command instructions to associate a level of fluid in a reservoir with a first signal indicative of the electrical coupling between the first active surface and the second active surface with reference to the data indicative of a conductivity curve.

摘要翻译： 本文描述了具有良好灵敏度的油墨液位检测系统。 该系统包括具有第一有源表面的第一探针，具有面向第一有源表面的第二有源表面的第二探针，其中存储指示电导率曲线和命令指令的数据的存储器，以及被配置为执行命令的处理器 参考指示电导率曲线的数据，将贮存器中的液体水平与指示第一活性表面和第二活性表面之间的电耦合的第一信号相关联的指令。

公开(公告)号：US08356869B2

公开(公告)日：2013-01-22

申请号：US12823618

申请日：2010-06-25

申请人： David L. Knierim

发明人： David L. Knierim

IPC分类号： B41J29/38

CPC分类号： B41J2/0458 ,  B41J2/04581

摘要： A device has an output circuit arranged to receive a voltage pulse, a body diode associated with the output circuit, and a detection circuit electrically coupled to the voltage pulse and the output circuit, such that when the voltage pulse transitions from high to low, the detection circuit is configured to activate the output circuit to reduce current in the body diode. A circuit to control parasitic power dissipation in an integrated circuit has a P-channel FET having a source electrode coupled to a high voltage signal source and a drain electrode coupled to a load, a body diode associated with the P-channel FET, and a detection circuit. An apparatus has a print head arranged to dispense ink, a print driver circuit electrically coupled to the print head and configured to provide voltage pulses to actuate the ejection ports through an output circuit, and a detection circuit electrically coupled to the output circuit.

摘要翻译： 设备具有布置成接收电压脉冲的输出电路，与输出电路相关联的体二极管，以及电耦合到电压脉冲和输出电路的检测电路，使得当电压脉冲从高转变为低电平时， 检测电路被配置为激活输出电路以减少体二极管中的电流。 用于控制集成电路中的寄生功率耗散的电路具有P沟道FET，其具有耦合到高电压信号源的源极和耦合到负载的漏电极，与P沟道FET相关联的体二极管，以及 检测电路。 一种设备具有布置成分配墨水的打印头，电连接到打印头并被配置为提供电压脉冲以通过输出电路致动喷射口的打印驱动器电路，以及电耦合到输出电路的检测电路。

公开(公告)号：US08109591B2

公开(公告)日：2012-02-07

申请号：US12358923

申请日：2009-01-23

申请人： Christian Carl Gadke ,  David L. Knierim ,  Lee M. Oien ,  Nathaniel Morrison ,  Aaron Boyce ,  Bruce Baur

发明人： Christian Carl Gadke ,  David L. Knierim ,  Lee M. Oien ,  Nathaniel Morrison ,  Aaron Boyce ,  Bruce Baur

IPC分类号： B41J29/38

CPC分类号： B41J2/17593

摘要： A method responds to an over-temperature condition in a printhead. The method includes generating a first electrical signal corresponding to a temperature in a printhead, monitoring the first electrical signal with a first electronic circuit to terminate delivery of electrical power to a printhead in response to detection of a safety event, and monitoring the first electrical signal with a second electronic circuit to regulate an amount of electrical power delivered to the printhead.

摘要翻译： 一种方法响应于打印头中的过温状态。 该方法包括产生对应于打印头中的温度的第一电信号，利用第一电​​子电路监测第一电信号，以响应于安全事件的检测而终止向打印头传送电力，以及监视第一电信号 具有第二电子电路以调节传送到打印头的电力的量。

公开(公告)号：US20100277557A1

公开(公告)日：2010-11-04

申请号：US12834606

申请日：2010-07-12

申请人： Richard G. Chambers ,  Brent R. Jones ,  David L. Knierim ,  Barry D. Reeves ,  Edward F. Burress ,  Ernest I. Esplin ,  Jasper Wong

发明人： Richard G. Chambers ,  Brent R. Jones ,  David L. Knierim ,  Barry D. Reeves ,  Edward F. Burress ,  Ernest I. Esplin ,  Jasper Wong

IPC分类号： B41J2/175

CPC分类号： B41J2/17593

摘要： A method facilitates insertion of a segmented ink stick into an ink feed system of a phase change ink jet printer. The method includes bending of a flexible strand between ink stick segments during insertion of the ink stick segments and then straightening the flexible strand to orient the ink stick segments in the ink feed system.

摘要翻译： 一种方法便于将分段的墨水棒插入相变式喷墨打印机的墨水供给系统中。 该方法包括在插入墨棒段期间在墨棒段之间弯曲柔性线，然后矫直柔性线以使墨棒段在墨水供给系统中定向。

公开(公告)号：US20090321520A1

公开(公告)日：2009-12-31

申请号：US12145877

申请日：2008-06-25

申请人： David Douglas Martenson ,  David L. Knierim

发明人： David Douglas Martenson ,  David L. Knierim

IPC分类号： G06K7/10

CPC分类号： G01D5/3473 ,  G01D5/24409 ,  G01D5/34746 ,  G01D5/366

摘要： An encoder home position sensing system and method is disclosed, which includes the use of an analog quadrature encoder reader and either a code wheel or a code strip. The code wheel possesses an optical track comprised of annular ring patterns, the thickness of which can be modulated by a sinusoidal function about the code wheel circumference, with one cycle of a sine wave corresponding to one encoder cycle. In one region of the optical track the amplitude of the sine function is changed to imbed an absolute reference home position. This region of the optical track can be sensed and used to determine an absolute system position. The linear code strip is similarly constructed with lines along the direction of motion, the thickness of which are modulated with a sine function, with one cycle of the sine wave corresponding to one encoder cycle, and the amplitude of the sine wave function changed to imbed an absolute reference home position in the optical track.

摘要翻译： 公开了一种编码器原位感测系统和方法，其包括使用模拟正交编码器读取器和码轮或代码条。 码盘具有由环形环图形组成的光学轨迹，其环形环的厚度可通过关于码盘圆周的正弦函数进行调制，正弦波的一个周期对应于一个编码器周期。 在光学轨迹的一个区域中，正弦函数的幅度被改变以嵌入绝对参考初始位置。 光轨的该区域可被感测并用于确定绝对系统位置。 线性码条类似地沿着运动方向的线构成，其厚度用正弦函数调制，正弦波的一个周期对应于一个编码器周期，正弦波函数的幅度变为嵌入 光轨中的绝对参考原位。

公开(公告)号：US07543901B2

公开(公告)日：2009-06-09

申请号：US11270214

申请日：2005-11-08

申请人： Trevor J. Snyder ,  Amy R. Bartlett ,  Bo Wu ,  Randall R. Bridgeman ,  Andrew W. Hill ,  Jennifer Miyamoto ,  Jule W. Thomas, Jr. ,  Donald R. Titterington ,  Steven V. Korol ,  David L. Knierim

发明人： Trevor J. Snyder ,  Amy R. Bartlett ,  Bo Wu ,  Randall R. Bridgeman ,  Andrew W. Hill ,  Jennifer Miyamoto ,  Jule W. Thomas, Jr. ,  Donald R. Titterington ,  Steven V. Korol ,  David L. Knierim

IPC分类号： B41J29/38

CPC分类号： B41J2/17593 ,  B41J2/0057

摘要： A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then varied to heat the print head and the support structure. Another method of operating a printer turns off a support structure heater when the printer enters standby mode and holds a print head adjacent to an intermediate transfer surface while the printer is in standby mode.

摘要翻译： 当打印机进入待机模式时，操作打印机的方法会关闭支撑结构加热器。 然后打印头从支撑结构支撑的中间转印表面移开。 然后改变用于加热打印头的热设置以加热打印头和支撑结构。 当打印机处于待机模式时，当打印机进入待机模式并将打印头保持在中间传送表面附近时，操作打印机的另一种方法会关闭支撑结构加热器。

公开(公告)号：US07405393B2

公开(公告)日：2008-07-29

申请号：US11154047

申请日：2005-06-15

申请人： David D. Martenson ,  David L. Knierim

发明人： David D. Martenson ,  David L. Knierim

IPC分类号： G01D5/34

CPC分类号： G01D5/2457 ,  B41J19/202

摘要： An optical encoder that includes an optical grating and a quadrature optical encoder sensor that move relative to each other. The optical grating includes a first encoder bar and a plurality of second encoder bars, wherein the first encoder bar is optically configured to change an amplitude of an output of the quadrature optical encoder sensor.

摘要翻译： 一种光学编码器，包括相对于彼此移动的光栅和正交光学编码器传感器。 光栅包括第一编码器条和多个第二编码器条，其中第一编码器条被光学配置为改变正交光学编码器传感器的输出的幅度。

公开(公告)号：US20080088686A1

公开(公告)日：2008-04-17

申请号：US11581881

申请日：2006-10-17

申请人： Brent Rodney Jones ,  David L. Knierim ,  Barry D. Reeves ,  Edward F. Burress ,  Ernest Isreal Esplin ,  Richard Guy Chambers ,  Jasper Kent Wong

发明人： Brent Rodney Jones ,  David L. Knierim ,  Barry D. Reeves ,  Edward F. Burress ,  Ernest Isreal Esplin ,  Richard Guy Chambers ,  Jasper Kent Wong

IPC分类号： G01D11/00

CPC分类号： B41J2/17593

摘要： A solid ink feed system for a phase change ink imaging device comprises an ink loader having an insertion area and a melt area. A collapsible support in the ink loader has a first end attached adjacent the melt area and a second end configured to receive at least one ink stick inserted into the ink loader at the insertion area. The first and second ends are connected by a collapsible body configured to support the at least one ink stick and to vary in length corresponding to the distance of the least one ink stick from the melt area of the ink loader.

摘要翻译： 用于相变油墨成像装置的固体墨水供给系统包括具有插入区域和熔化区域的墨水装载器。 墨水装载机中的可折叠支撑件具有邻近熔化区域附接的第一端，以及构造成在插入区域处容纳插入墨水装载器中的至少一个墨水棒的第二端。 第一和第二端通过可折叠主体连接，该可折叠主体被构造成支撑至少一个墨水棒，并且其长度对应于至少一个墨水棒与墨水装载机的熔融区域的距离而变化。