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公开(公告)号：US5017941A
公开(公告)日：1991-05-21
申请号：US432247
申请日：1989-11-06
申请人： Donald J. Drake
发明人： Donald J. Drake
IPC分类号： B41J2/175 , B41J2/05 , B41J2/14 , B41J29/377
CPC分类号： B41J2/14129 , B41J2/1408 , B41J29/377 , B41J2202/12
摘要： A thermal ink jet printer is disclosed having a printhead with a passageway therein for the circulation of a cooling fluid therethrough. The passageway is parallel and closely adjacent the array of bubble generating heating elements. When the printhead is composed of mated silicon channel and heater plates, the passageway is formed in one embodiment by forming a groove in the heater plate surface opposite the one containing the heating elements and addressing electrodes followed by the mating of a silicon sealing plate having inlet and outlet openings etched therein. Tubes for circulating a cooling fluid, such as ink, are sealingly attached to the inlet and outlet openings. In an alternative embodiment, the groove may be formed in the sealing plate or in both the sealing plate and the printhead heater plate. In another embodiment, the passageway for the cooling fluid is provided by etching a channel in a thick film layer deposited on the heater plate surface opposite the one with the heating elements. The circulated cooling fluid prevents printhead temperature fluctuations during the printing operation.
摘要翻译： 公开了一种具有打印头的热喷墨打印机，其中具有用于使冷却流体循环通过的打印头。 通道平行并紧密地邻近发泡加热元件阵列。 当打印头由配对的硅通道和加热器板组成时，通过在一个实施例中形成通道，该加热器板在与加热元件和寻址电极相对的加热器板表面中形成一个凹槽，随后与具有入口 和其中蚀刻的出口开口。 用于循环冷却流体（例如墨水）的管道密封地附接到入口和出口。 在替代实施例中，凹槽可以形成在密封板中或在密封板和打印头加热器板中。 在另一个实施例中，冷却流体的通道是通过在沉积在与加热元件相反的加热器板表面上的厚膜层中蚀刻通道来提供的。 循环冷却液在打印操作期间防止打印头温度波动。
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公开(公告)号：US4875968A
公开(公告)日：1989-10-24
申请号：US305046
申请日：1989-02-02
CPC分类号： B41J2/1631 , B41J2/1604 , B41J2/1623 , B41J2/1629 , B41J2/1635
摘要： An improved method of fabricating a thermal ink jet printhead of the type produced by the mating of an anisotropically etched silicon substrate containing ink flow directing recesses with a substrate having heating elements and addressing electrodes is disclosed. An etch resistant material on one surface of a (100) silicon substrate is patterned to form at least two sets of vias therein having predetermined sizes, shapes, and predetermined spacing therebetween. The predetermined spacing permits selected complete undercutting by an anisotropic etchant within a predetermined etching time period. The patterned silicon substrate is anisotropically etched for the predetermined time period to form at least two sets of separate recesses, each recess being separated from each other by a wall, the surfaces of the walls being {111} crystal planes of the silicon substrate, whereby certain predetermined separately etched recesses are selectively placed into communication with each other by the selective undercutting while the remainder of the undercut walls provide strengthening reinforcement to the printhead, so that larger printheads may be fabricated which are more robust without relinquishing resolution or reducing tolerances.
摘要翻译： 公开了一种改进的制造热喷墨打印头的方法，该喷墨打印头是通过将含有墨流动引导凹槽的各向异性蚀刻的硅基底与具有加热元件和寻址电极的基底配合而制造的。 对（100）硅衬底的一个表面上的耐蚀刻材料进行图案化，以形成其中具有预定尺寸，形状和预定间隔的至少两组通孔。 预定间隔允许在预定蚀刻时间段内由各向异性蚀刻剂选择的完全底切。 图案化的硅衬底在预定的时间周期内被各向异性蚀刻以形成至少两组分离的凹槽，每个凹槽彼此被壁分离，壁的表面是硅衬底的{111}晶面，由此 某些预定的单独蚀刻的凹槽通过选择性底切而选择性地彼此连通，而其余的底切壁为打印头提供加强增强，使得可以制造更大的打印头，其更坚固，而不放弃分辨率或减小公差。
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公开(公告)号：US4638328A
公开(公告)日：1987-01-20
申请号：US858143
申请日：1986-05-01
CPC分类号： B41J2/02 , B41J2002/14379 , B41J2202/16
摘要： A continuous stream type ink jet printhead utilizing constant thermal pulses to perturbate the ink streams emitted through a plurality of nozzles to break up the ink streams into droplets at a fixed distance from the nozzles whereat the drops are individually charged by a charging electrode in accordance with digitized data signals. Each printhead has a manifold, a plurality of ink channels communicating at one end with the manifold and terminating at the other end with nozzles, and at least one resistor addressed by a predetermined frequency of current pulses for applying thermal pulses to the ink. In one embodiment, a resistor is positioned in each of the channels adjacent the nozzles and in another embodiment, a single resistor is located in the ink manifold. The resistors are pulsed at low power to generate a perturbation of ink properties such as density, viscosity, or surface tension without producing a phase change in the ink.
摘要翻译： 连续流式喷墨打印头，其使用恒定的热脉冲来扰动通过多个喷嘴发射的油墨流，以将墨水流从与喷嘴相距固定距离的液滴分散成液滴，在该喷嘴处，液滴由充电电极根据 数字化数据信号。 每个打印头具有歧管，多个墨水通道在一端与歧管连通并且在另一端处以喷嘴终止，并且至少一个电阻器由预定频率的电流脉冲寻址，以将热脉冲施加到墨水。 在一个实施例中，电阻器位于与喷嘴相邻的每个通道中，并且在另一个实施例中，单个电阻器位于墨水歧管中。 电阻器以低功率脉冲以产生油墨性质（例如密度，粘度或表面张力）的扰动，而不会导致油墨中的相变。
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公开(公告)号：US07264328B2
公开(公告)日：2007-09-04
申请号：US10953527
申请日：2004-09-30
IPC分类号： B41J29/393 , B41J29/38
CPC分类号： B41J29/393
摘要： A method for detecting a defect in an inkjet print head within an inkjet marking device includes marking images on a rotating intermediate substrate according to an image sequence, marking a test image on at least one blank portion of the intermediate substrate, the blank portion resulting from the image sequence, evaluating the test image with a sensor, and determining whether the inkjet print head is defective based on the evaluation.
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公开(公告)号：US06864908B2
公开(公告)日：2005-03-08
申请号：US10349365
申请日：2003-01-22
申请人： Stephen C. Corona , Donald J. Drake
发明人： Stephen C. Corona , Donald J. Drake
CPC分类号： B41J2/451
摘要： A xerographic print engine employs a photoreceptor with an image receiving surface, a printhead for directing light to the photoreceptor to produce thereon a latent image, and a developer for converting the latent image to a printable image to be transferred from the photoreceptor to a print medium during a relative motion between the photoreceptor and the print medium. The printhead has light emitting diodes disposed in plural rows arranged alongside each other on a substrate which also supports driver circuitry connecting with imaging electronics for activating individual ones of the diodes. An optical element focuses light of the diodes onto a row of the latent image, the focussing being accomplished concurrently for individual ones of the diodes located in a plurality of the rows.
摘要翻译： 静电印刷引擎采用具有图像接收表面的感光体，用于将光引导到感光体以在其上产生潜像的打印头以及用于将潜像转换成可从感光体转印到打印介质的可打印图像的显影剂 在感光体和打印介质之间的相对运动期间。 打印头具有设置在基板上并排布置成多行的发光二极管，该基板还支持连接成像电子装置的驱动电路，用于激活二极管中的各个二极管。 光学元件将二极管的光聚焦到潜像的行上，对于位于多个行中的各个二极管的同时完成聚焦。
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26.发明授权Hybrid ink jet printer with alignment of scanning printheads to pagewidth printbar 失效混合式喷墨打印机，扫描打印头与页宽打印条对齐
公开(公告)号：US5751311A
公开(公告)日：1998-05-12
申请号：US624274
申请日：1996-03-29
申请人： Donald J. Drake
发明人： Donald J. Drake
CPC分类号： B41J2/2103 , B41J2202/21
摘要： An ink jet printer is configured in a hybrid architecture wherein a full width printbar is combined with a partial width color scanning assembly to provide the capability of selectively printing in black only or, alternately, into producing color prints by operating the color scanning assembly exclusively. The cost of the hybrid system, when compared to a full width color system using four full width printbars, is greatly reduced. The partial width scanning assembly is mounted on a carriage which is stepped along a printing swath width, the sum of the incremental scan steps equaling the width of a full width printbar. A dimensional mismatch between the printbar and the scanning printhead in the direction perpendicular to paper motion (width direction) could result in image degradation because of misalignment of color drops to black drops. The mismatch could result in manufacturing errors in either the printhead width and/or the width of the carriage. It is proposed to identify the total mismatch as a distance .DELTA.l prior to print operation and to adjust the incremental steps of carriage scan motion so as to change each incremental step by .DELTA.l divided by the number of steps. Thus, the mismatch is effectively spread over the entire print swath and does not become visually perceptible in the output image.
摘要翻译： 喷墨打印机被配置为混合架构，其中全宽度打印条与部分宽度彩色扫描组合组合，以提供选择性地以黑色打印的能力，或者通过专门操作彩色扫描组件来交替地产生彩色打印。 与使用四个全宽度打印棒的全幅彩色系统相比，混合系统的成本大大降低。 部分宽度扫描组件安装在沿着打印幅宽的台阶上的滑架上，增量扫描步长的总和等于全宽打印条的宽度。 在与纸张运动（宽度方向）垂直的方向上，打印条和扫描打印头之间的尺寸不匹配可能导致由于色差与黑色液滴的未对准而导致的图像劣化。 不匹配可能导致打印头宽度和/或滑架宽度的制造误差。 建议在打印操作之前将总失配识别为距离DELTA l，并调整滑架扫描运动的增量步长，以便将每个增量步长改变DELTA l除以步数。 因此，失配有效地扩展到整个印刷条上，并且在输出图像中不会变得视觉上可察觉。
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27.发明授权Overlapping chip replaceable subunits, methods of making same, and methods of making RIS or ROS array bars incorporating these subunits 失效重叠芯片可替换亚基，制备方法，以及制备融合这些亚基的RIS或ROS阵列的方法
公开(公告)号：US5097274A
公开(公告)日：1992-03-17
申请号：US732540
申请日：1991-07-19
CPC分类号： B41J2/1604 , B41J2/1623 , B41J2/1628 , B41J2/1631 , B41J2/1632 , B41J2/34
摘要： Overlapping chip replaceable subunits for RIS or ROS array bars are disclosed. The subunits include a planar semiconductive substrate having at least one component and supporting circuitry on a surface thereof. The semiconductive substrate has first and second side edges, a front edge and a width equal to a distance between the first and second side edges. The planar semiconductive substrate is mounted on a planar support which can be, for example, a daughterboard/heat sink assembly having at least one electrode having a terminal at one end thereof. The planar support also has first and second side edges, a front edge and a width equal to a distance between the first and second side edges. The width of the support is less than the width of the semiconductive substrate so that the first and second side edges of the planar semiconductive substrate extend outwardly beyond the first and second side edges, respectively, of the support. The structure of the present invention enables extended arrays of subunits to be accurately placed on one surface of a substrate, while permitting individual subunits to be removed from the substrate easily and without damaging adjacent subunits or their electrical connections to the host machine.
摘要翻译： 公开了用于RIS或ROS阵列的重叠芯片可替换子单元。 该子单元包括在其表面上具有至少一个部件和支撑电路的平面半导体基板。 半导体衬底具有第一和第二侧边缘，前边缘和宽度等于第一和第二侧边缘之间的距离。 平面半导体基板安装在平面支撑件上，该平面支撑件可以是例如具有在其一端具有端子的至少一个电极的子板/散热器组件。 平面支撑件还具有第一和第二侧边缘，前边缘和宽度等于第一和第二侧边缘之间的距离。 支撑件的宽度小于半导体基板的宽度，使得平面半导体基板的第一和第二侧边缘分别向外延伸超过支撑件的第一和第二侧边缘。 本发明的结构使得能够将扩展的亚基阵列精确地放置在基底的一个表面上，同时允许单独的亚单元从基底中轻松地移除而不会损坏相邻的子单元或者它们与主机的电连接。
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28.发明授权Modular partial bars and full width array printheads fabricated from modular partial bars 失效由模块化部分棒制成的模块化部分棒和全宽阵列打印头
公开(公告)号：US5057854A
公开(公告)日：1991-10-15
申请号：US543550
申请日：1990-06-26
CPC分类号： B41J2/155 , B41J2202/20
摘要： Modular partial bars include a substrate bar having a length and a plurality of printhead subunits attached to only one side of the substrate bar, each printhead subunit being spaced from an adjacent printhead subunit. These modular partial bars are used as building blocks to form full width staggered array printheads. When the printhead subunits are arranged on each substrate bar so that two substrate bars are capable of forming a full width staggered array printhead, each modular partial bar is referred to as a modular half bar. One modular half bar can be stacked on another modular half bar any number of ways. For example, two half bars can be stacked with their printhead subunit containing sides facing the same direction, away from one another or towards one another. When two half bars are stacked with their printhead subunit containing sides facing in the same direction, an ink manifold for supplying ink to the printhead subunits of the lower half bar can be provided in the substrate of the upper half bar. When half bars are arranged with their printhead subunit containing sides facing each other, a common ink supply manifold can be used to supply ink to all of the printhead subunits in the full width staggered array, thus eliminating the need for two separate ink supply manifolds. By modifying the construction of the channel plates typically used to form the printhead subunits, the need for a separate ink supply manifold can be entirely eliminated.
摘要翻译： 模块化部分棒包括具有长度的衬底条和仅附接到衬底条的一侧的多个打印头子单元，每个打印头子单元与相邻的打印头子单元间隔开。 这些模块化部分棒用作构建块以形成全宽度交错阵列打印头。 当打印头子单元布置在每个基板上时，使得两个基板条能够形成全宽度交错阵列打印头，每个模块化部分条被称为模块化半条。 一个模块化的半棒可以堆叠在另一个模块化的半棒上任意数量的方式。 例如，两个半棒可以堆叠，其打印头子单元包含侧面朝向相同的方向，彼此远离或彼此朝向彼此。 当两个半棒堆叠而其打印头子单元包含侧面朝向相同方向时，可以在上半杆的基板中提供用于向下半杆的打印头子单元供墨的墨水歧管。 当半棒布置成其打印头子单元包含侧面彼此相对时，可以使用公共的墨水供应歧管来将墨水供应到全宽度交错阵列中的所有打印头子单元，从而消除了对两个单独的墨水供应歧管的需要。 通过改变通常用于形成打印头子单元的通道板的结构，可以完全消除对单独的供墨歧管的需要。
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29.发明授权Method of fabricating channel plates and ink jet printheads containing channel plates 失效制造通道板和含有通道板的喷墨打印头的方法
公开(公告)号：US5041190A
公开(公告)日：1991-08-20
申请号：US524072
申请日：1990-05-16
申请人： Donald J. Drake , James F. O'Neill
发明人： Donald J. Drake , James F. O'Neill
CPC分类号： B41J2/1631 , B41J2/1604 , B41J2/1628 , B41J2/1635 , Y10S438/928
摘要： A method of fabricating channel plates for ink jet printheads from a (100) silicon wafer is disclosed. The location of the nozzle-forming channels are accurately located relative to side edges of each channel plate to permit extended arrays of printheads containing these channel plates to be fabricated without discrepancies between the spacing of end nozzles of adjacent subunits. The present invention achieves this result by forming a first set of base etch openings and a second set of base etch openings on a base surface of a (100) silicon wafer. The first set of base etch openings define the locations of side edges of each channel plate. The second set of base etch openings define the locations and dimensions of a plurality of nozzle-defining channels for each channel plate. By aligning the second set of base etch openings with the first set of base etch openings, the channel plates which are formed after etching the silicon wafer have nozzle-defining channels which are precisely aligned with the side edges of each channel plate.
摘要翻译： 公开了一种从（100）硅晶片制造用于喷墨打印头的通道板的方法。 喷嘴形成通道的位置相对于每个通道板的侧边缘精确定位，以允许制造包含这些通道板的扩展的打印头阵列，而不会在相邻子单元的端部喷嘴的间隔之间产生差异。 本发明通过在（100）硅晶片的基底表面上形成第一组基底蚀刻开口和第二组基底蚀刻开口来实现该结果。 第一组基底蚀刻开口限定每个通道板的侧边缘的位置。 第二组基底蚀刻开口限定了每个通道板的多个喷嘴限定通道的位置和尺寸。 通过将第二组基底蚀刻开口与第一组基底蚀刻开口对准，在蚀刻硅晶片之后形成的通道板具有与每个通道板的侧边缘精确对准的喷嘴限定通道。
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30.发明授权
公开(公告)号：US5030971A
公开(公告)日：1991-07-09
申请号：US442574
申请日：1989-11-29
CPC分类号： B41J2/2103 , B41J2/14072 , B41J2/14129 , B41J2/1603 , B41J2/1628 , B41J2/1629 , B41J2/1642
摘要： A multi-color roofshooter type thermal ink jet printhead includes a common heater substrate having at least two arrays of heating elements and a corresponding number of elongated feed slots, each heater array being located adjacent its corresponding feed slot. A common channel substrate is layered above a heater substrate and includes arrays of nozzles corresponding in number to the arrays of heating elements, each nozzle array communicating with one of the feed slots on the heater substrate. Each nozzle array is isolated from an adjacent nozzle array and each nozzle of each nozzle array is aligned above a respective heating element of a corresponding heater array. Each of the heater arrays is individually addressed and driven by switching circuitry located on the heater substrate adjacent to its corresponding heater array. The switching circuitry can be active driver matrices corresponding in number to the arrays of heating elements. The locations of the driver matrices preferably alternate with locations of the feed slots. With this construction, multi-color printheads can be efficiently arranged on a single wafer, so that silicon real estate is conserved. The switching circuitry can also be used to address an array of heating elements in a mono-color thermal inkjet printhead. In a preferred embodiment, inputs of the switching circuitry extend from sides of the switching circuitry whereby distances between adjacent feed slots are minimized.
摘要翻译： 多色屋顶拍摄型热喷墨打印头包括具有至少两个加热元件阵列和相应数量的细长进给槽的公共加热器基板，每个加热器阵列位于其相应的进料槽附近。 公共通道基板层叠在加热器基板的上方，并且包括与加热元件阵列相对应的喷嘴阵列，每个喷嘴阵列与加热器基板上的一个进料槽连通。 每个喷嘴阵列与相邻的喷嘴阵列隔离，并且每个喷嘴阵列的每个喷嘴对准在相应加热器阵列的相应加热元件的上方。 每个加热器阵列由位于加热器基板上的与其对应的加热器阵列相邻的切换电路单独寻址和驱动。 开关电路可以是与加热元件阵列相对应的有源驱动器矩阵。 驱动器矩阵的位置优选地与馈送槽的位置交替。 利用这种结构，可以将多色打印头有效地布置在单个晶片上，从而保持硅的空间。 开关电路还可用于解决单色热喷墨打印头中的加热元件阵列。 在优选实施例中，开关电路的输入从开关电路的侧面延伸，从而相邻进料槽之间的距离最小化。
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