Reduced EMI printhead apparatus and method
    2.
    发明授权
    Reduced EMI printhead apparatus and method 失效
    减少EMI打印头设备和方法

    公开(公告)号:US06375295B1

    公开(公告)日:2002-04-23

    申请号:US09253302

    申请日:1999-02-19

    IPC分类号: B42J2938

    摘要: A printhead apparatus and accompanying method that achieve a staggered firing of multiple firing chambers within a firing interval to reduce EMI caused by multiple firing signal current transitions. The staggered firings may be achieved by delaying firing signals relative to others. The induced delay is preferably sufficient to reduce EMI while not being sufficient to noticeably affect image quality.

    摘要翻译: 一种打印头设备和附带的方法,其在点火间隔内实现多个点火室的交错点火,以减少由多个点火信号电流转换引起的EMI。 可以通过相对于他人延迟发射信号来实现交错的发射。 感应延迟优选足以减少EMI,而不足以显着影响图像质量。

    Warming device for controlling the temperature of an inkjet printhead
    5.
    发明授权
    Warming device for controlling the temperature of an inkjet printhead 有权
    用于控制喷墨打印头的温度的加热装置

    公开(公告)号:US06435668B1

    公开(公告)日:2002-08-20

    申请号:US09253260

    申请日:1999-02-19

    IPC分类号: B41J205

    摘要: This present invention is embodied in a printing system having a printhead assembly with a warming circuit for controlling the temperature of an inkjet printhead. The printing system includes a controller, a power supply and a printhead assembly having a memory device and a distributive processor integrated with an ink driver head. The distributive processor, the warming circuit and a sensor on the printhead assembly can regulate the temperature of the printhead assembly based on sensed and predefined operating information to maintain the printhead assembly within a desired temperature range.

    摘要翻译: 本发明体现在具有打印头组件的打印系统中,打印头组件具有用于控制喷墨打印头温度的加温回路。 打印系统包括控制器,电源和具有存储装置的打印头组件和与油墨驱动头集成的分配处理器。 分配处理器,加热电路和打印头组件上的传感器可以基于感测和预定义的操作信息来调节打印头组件的温度,以将打印头组件保持在期望的温度范围内。

    Transistor drop ejectors in ink-jet print heads
    6.
    发明授权
    Transistor drop ejectors in ink-jet print heads 失效
    喷墨打印头中的晶体管滴墨机

    公开(公告)号:US06412919B1

    公开(公告)日:2002-07-02

    申请号:US09655219

    申请日:2000-09-05

    IPC分类号: B41J205

    CPC分类号: B41J2/14016 B41J2/14088

    摘要: The functions of an ink-jet print head drive transistor and ink-ejecting heat transducer (resistor) are combined into a single component, a high-temperature transistor. The transistor is turned on when an ink drop is required, and the resultant heat generated by the transistor is used for creating the vapor bubble for ejecting the ink drop. The drop-ejector transistor is a silicon carbide transistor.

    摘要翻译: 喷墨打印头驱动晶体管和喷墨热传感器(电阻器)的功能被组合成单个部件,即高温晶体管。 当需要墨滴时晶体管导通,并且由晶体管产生的所产生的热量用于产生用于喷射墨滴的蒸气泡。 滴落式晶体管是碳化硅晶体管。

    Module manager for wide-array inkjet printhead assembly
    8.
    发明授权
    Module manager for wide-array inkjet printhead assembly 有权
    宽阵列喷墨打印头组件的模块管理器

    公开(公告)号:US06585339B2

    公开(公告)日:2003-07-01

    申请号:US09755226

    申请日:2001-01-05

    IPC分类号: B41J2938

    摘要: A wide-array inkjet printhead assembly includes a carrier and N printheads and a module manager disposed on the carrier. The module manager receives a serial input data stream and corresponding input clock signal from a printer controller located external from the inkjet printhead assembly. The module manager demultiplexes the serial data stream into N serial output data streams. The module manager provides the N serial output data streams and N corresponding output clock signals based on the input clock signal to the N printheads.

    摘要翻译: 宽阵列喷墨打印头组件包括载体和N个打印头以及设置在载体上的模块管理器。 模块管理器从位于喷墨打印头组件外部的打印机控制器接收串行输入数据流和相应的输入时钟信号。 模块管理器将串行数据流解复用为N个串行输出数据流。 模块管理器根据N个打印头的输入时钟信号,提供N个串行输出数据流和N个相应的输出时钟信号。

    Thermal inkjet printhead warming circuit
    9.
    发明授权
    Thermal inkjet printhead warming circuit 失效
    热喷墨打印头加热电路

    公开(公告)号:US5992979A

    公开(公告)日:1999-11-30

    申请号:US99119

    申请日:1998-06-17

    IPC分类号: B41J2/05 B41J2/14

    摘要: For each printhead nozzle, nozzle circuitry includes a warming transistor, drive transistor and heating resistor. To maintain a threshold temperature at the printhead, a warming pulse is sent from the warming transistor to the heating resistor of one or more nozzles when the temperature falls below a prescribed temperature. To fire a nozzle a firing pulse is output from the drive transistor to the heating resistor. The warming transistor is laid out as a segmented portion of the drive transistor layout area. No layout penalty is incurred by including the warming transistor for each nozzle. The source of a warming transistor is coupled in common to the source of a drive transistor. The drain of the warming transistor is coupled in common to the drain of the drive transistor. The gates are separate. The gates receive respective warming or firing control signals. The drains are coupled to the heating resistor.

    摘要翻译: 对于每个打印头喷嘴,喷嘴电路包括加温晶体管,驱动晶体管和加热电阻器。 为了保持打印头的阈值温度,当温度低于规定温度时,加温脉冲从加温晶体管发送到一个或多个喷嘴的加热电阻器。 为了点燃喷嘴,从驱动晶体管向发热电阻器输出点火脉冲。 加热晶体管布置为驱动晶体管布局区域的分段部分。 通过包括每个喷嘴的加温晶体管不会造成布局损失。 加温晶体管的源极共同连接到驱动晶体管的源极。 加热晶体管的漏极共同耦合到驱动晶体管的漏极。 门是分开的。 门接收各自的升温或点火控制信号。 排水管连接到加热电阻器。

    Wide-array inkjet printhead assembly with internal electrical routing system
    10.
    发明授权
    Wide-array inkjet printhead assembly with internal electrical routing system 有权
    具有内部电气布线系统的宽阵列喷墨打印头组件

    公开(公告)号:US06428145B1

    公开(公告)日:2002-08-06

    申请号:US09648565

    申请日:2000-08-25

    IPC分类号: B41J214

    摘要: A wide-array inkjet printhead assembly includes a carrier and a plurality of printhead dies mounted on the carrier. The carrier includes a plurality of conductive layers, a plurality of conductive vias, and a plurality of insulative layers. The conductive layers include a first interface layer disposed on a first face of the carrier, a second interface layer disposed on a second face of the carrier, and at least one power layer, data layer, and ground layer each interposed between the first and second interface layers. Each conductive via provides a conductive path through at least one of the insulative layers to provide electrical coupling between selected ones of the conductive layers, and each of the printhead dies are electrically coupled to the first interface layer.

    摘要翻译: 宽阵列喷墨打印头组件包括载体和安装在载体上的多个打印头芯片。 载体包括多个导电层,多个导电通孔和多个绝缘层。 所述导电层包括设置在所述载体的第一面上的第一界面层,设置在所述载体的第二面上的第二界面层,以及至少一个功率层,数据层和接地层,每个插入在所述第一和第二表面之间 接口层。 每个导电通孔提供穿过绝缘层中的至少一个的导电路径,以提供所选择的导电层之间的电耦合,并且每个打印头芯片电耦合到第一界面层。