THREE-DIMENSIONAL OBJECT PRINTER WITH MULTI-NOZZLE EXTRUDERS AND DISPENSERS FOR MULTI-NOZZLE EXTRUDERS AND PRINTHEADS

    公开(公告)号:US20170157828A1

    公开(公告)日:2017-06-08

    申请号:US14962126

    申请日:2015-12-08

    Abstract: A three-dimensional object printer includes a multi-nozzle extruder, at least one extrusion material supply, and a dispenser that provides extrusion material from the extrusion material supply to each of a plurality of channels, each channel supplying extrusion material to at least one nozzle in the multi nozzle extruder. The dispenser includes an inlet to receive extrusion material from at least one extrusion material supply, an outlet configured to direct the extrusion material to a channel in the plurality of channels, and an actuator configured to move the outlet into alignment with each channel in the plurality of channels.

    Method and apparatus for monitoring a subject for atrial fibrillation
    36.
    发明授权
    Method and apparatus for monitoring a subject for atrial fibrillation 有权
    用于监测心房颤动的受试者的方法和装置

    公开(公告)号:US09433386B2

    公开(公告)日:2016-09-06

    申请号:US13937740

    申请日:2013-07-09

    Abstract: What is disclosed is a method for monitoring a subject for cardiac arrhythmia such as atrial fibrillation using an apparatus that can be comfortably worn by the subject around an area of exposed skin where a photoplethysmographic (PPG) signal can be registered. In one embodiment, the apparatus is a reflective or transmissive wrist-worn device with emitter/detector pairs fixed to an inner side of a band with at least one illuminator emitting source light at a specified wavelength band. The illuminator is paired to a respective photodetector comprising one or more sensors that are sensitive to a wavelength band of its paired illuminator. The photodetector measures intensity of sensed light emitted by a respective illuminator. The signal obtained by the sensors comprises a continuous PPG signal. The continuous PPG signal analyzed for peak-to-peak pulse points from which the existence of cardiac arrhythmia such as atrial fibrillation event can be determined.

    Abstract translation: 所公开的是用于使用可以被注射在光体积描记术(PPM)信号的暴露皮肤区域周围的受试者舒适佩戴的装置来监测心律失常的受试者的心律失常的方法,例如心房颤动。 在一个实施例中,该装置是具有发射器/检测器对的反射或透射腕部装置,其固定到带的内侧,其中至少一个照明器发射指定波长带的光源。 照明器与包括对其成对照明器的波长带敏感的一个或多个传感器的相应光电检测器配对。 光电检测器测量由相应照明器发射的感测光的强度。 由传感器获得的信号包括连续的PPG信号。 分析连续的PPG信号,从中可以确定心律失常如心房颤动事件的存在的峰 - 峰脉冲点。

    MEMS ACTUATOR PRESSURE COMPENSATION STRUCTURE FOR DECREASING HUMIDITY
    37.
    发明申请
    MEMS ACTUATOR PRESSURE COMPENSATION STRUCTURE FOR DECREASING HUMIDITY 有权
    MEMS致动器压力补偿结构降低湿度

    公开(公告)号:US20150130876A1

    公开(公告)日:2015-05-14

    申请号:US14075027

    申请日:2013-11-08

    CPC classification number: B41J2/045 B41J2/14314 B41J2002/043

    Abstract: A printhead including a venting system and an actuator array, wherein each actuator may include an actuator air chamber. The venting system includes an air path that vents each actuator air chamber to the atmosphere. The printhead further includes a dryer configured to remove moisture from air within the air path. The dryer may include a passive desiccant, an active resistive heater, or both.

    Abstract translation: 包括通气系统和致动器阵列的打印头,其中每个致动器可以包括致动器空气室。 通风系统包括将每个致动器空气室排放到大气中的空气路径。 打印头还包括被配置为从空气路径内的空气中除去水分的干燥器。 干燥器可以包括被动干燥剂,有源电阻加热器或两者。

    Image quality by printing frequency adjustment using belt surface velocity measurement
    38.
    发明授权
    Image quality by printing frequency adjustment using belt surface velocity measurement 有权
    图像质量通过打印频率调整使用皮带表面速度测量

    公开(公告)号:US09004629B2

    公开(公告)日:2015-04-14

    申请号:US13717088

    申请日:2012-12-17

    CPC classification number: B41J11/007 B41J2/04503 B41J2/04581

    Abstract: Embodiments described herein are directed to a reflex printing system with improved image quality. A media transport moves a media substrate or an intermediate belt along a media path in a process direction past the two or more print heads, which deposit inks onto the media substrate or the intermediate belt. A velocity measuring device directly measures and transmits the speed of the surface of belt or media that is to receive the image to a controller, which sends print commands to the two or more print heads to control the frequency of the printing. The inks deposited on the media substrate or intermediate belt have a color registration of from 10 to 20 microns.

    Abstract translation: 本文描述的实施例涉及具有改进的图像质量的反射打印​​系统。 介质输送器沿着介质路径沿着介质路径移动通过两个或更多个打印头的过程方向,其将油墨沉积到介质基板或中间带上。 速度测量装置直接测量并传送接收图像的皮带或介质表面的速度到控制器,控制器向两个或多个打印头发送打印命令以控制打印的频率。 沉积在介质基材或中间带上的油墨具有10至20微米的颜色配准。

    Tracking in belt on belt architecture through self-alignment
    39.
    发明授权
    Tracking in belt on belt architecture through self-alignment 有权
    通过自对准跟踪皮带架构

    公开(公告)号:US08899583B2

    公开(公告)日:2014-12-02

    申请号:US13840506

    申请日:2013-03-15

    Abstract: Provided herein is a document processing system with improved paper path alignment and superior media hold-down capability, which minimizes undesirable electrostatic fields in the print zone. The document processing system includes a first belt module including a first roller and a second roller with a tack belt in surrounding engagement with the first roller and the second roller. The processing system further includes a second belt module, which includes a third roller and a fourth roller with a media transport belt in surrounding engagement with the third roller and the fourth roller. A mounting support for the first belt module is also included herein, the mounting support is designed to allow the first module to self-align relative to the second transport.

    Abstract translation: 本文提供了一种文档处理系统,其具有改进的纸张路径对准和优异的介质压缩能力,其最小化打印区域中不期望的静电场。 文件处理系统包括第一带组件,其包括第一辊和第二辊,其具有与第一辊和第二辊周围接合的粘性带。 处理系统还包括第二带组件,其包括第三辊和第四辊,其中介质传送带与第三辊和第四辊周围接合。 此处还包括用于第一带组件的安装支撑件,安装支撑件被设计成允许第一模块相对于第二传送装置自对准。

    Motion quality of a transfix nip by media thickness and/or skew feedforward to nip motor torque
    40.
    发明授权
    Motion quality of a transfix nip by media thickness and/or skew feedforward to nip motor torque 有权
    通过介质厚度和/或偏斜前馈到夹持电机扭矩的转印辊隙的运动质量

    公开(公告)号:US08827406B1

    公开(公告)日:2014-09-09

    申请号:US13836433

    申请日:2013-03-15

    CPC classification number: B41J13/0009 B41J11/0035 B41J11/0095

    Abstract: Embodiments described herein are directed to a system for reducing velocity transits in a printing system caused by media entering into a transfer nip. The system includes: an imaging drum, a variable speed motor, a transfix roll, a transfix nip, a media transport, a thickness sensor, a skew sensor, a media sensor, a switching means and a controller. Media thickness and/or media skew measurements are used in a feedforward control scheme to increase the imaging drum torque when the media sensor detects a media immediately before it is engaged by the transfer nip.

    Abstract translation: 本文描述的实施例涉及一种用于减少由介质进入转印辊隙所引起的印刷系统中的速度转变的系统。 该系统包括:成像鼓,变速电动机,转印辊,转印辊隙,介质传送器,厚度传感器,偏斜传感器,介质传感器,切换装置和控制器。 在前馈控制方案中使用介质厚度和/或介质偏移测量值,以在介质传感器在其被转印辊隙接合之前检测到介质时增加成像鼓转矩。

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