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    • 2. 发明授权
    • Printhead with close-packed configuration of alternating sized drop ejectors and method of firing such drop ejectors
    • 具有交替大小的滴液喷射器的紧密配置的打印头和点燃这种喷射器的方法
    • US06402280B2
    • 2002-06-11
    • US09233110
    • 1999-01-19
    • Gary A. KneezelDavid Allen MantellJames F. O'NeillThomas A. TellierSteven J. Harrington
    • Gary A. KneezelDavid Allen MantellJames F. O'NeillThomas A. TellierSteven J. Harrington
    • B41J2205
    • B41J2/2125
    • A printhead uses large and small drop ejectors to achieve efficient gray scale printing. The printhead is arranged with a close packed configuration of alternating large and small nozzles positioned to maximize coverage while minimizing the volume of ejected ink. The printhead may be operated in a single pass mode or dual pass mode. In the single pass mode, complete coverage is effected by rippling through the odd numbered jets first and then rippling through the even numbered jets. The position of the small spots from the even numbered jets can be adjusted to maximize coverage and counteract offset between nozzle centers. Printheads with different size nozzles can also be operated by a staggered firing method using dual passes to offset spots in the scan direction by shifting the printhead between passes or alternating between groups of large and small nozzles. Further improvements to image quality can be realized by shifting the spots in the direction perpendicular to the scanning direction by tilting the printhead or offsetting the nozzles with respect to the ink channels on the printhead.
    • 打印头使用大而小的墨滴喷射器来实现高效的灰度打印。 打印头布置成具有交替的大和小喷嘴的紧密堆积构造,其被定位成最大化覆盖范围,同时最小化喷射墨的体积。 打印头可以在单程模式或双通道模式下操作。 在单程模式中,完全覆盖通过首先通过奇数射流波纹,然后通过偶数喷射波纹来实现。 可以调整来自偶数喷嘴的小点的位置,以最大化覆盖范围并抵消喷嘴中心之间的偏移。 具有不同尺寸喷嘴的打印头也可以通过交错的点火方法来操作,使用双程通过在扫描方向上偏移打印头,使打印头在通过之间移动或在大喷嘴和小喷嘴组之间交替。 通过倾斜打印头或相对于打印头上的墨水通道偏移喷嘴,可以通过使垂直于扫描方向的方向上的点移动来实现对图像质量的进一步改进。
    • 3. 发明授权
    • Support structure for large channel plates of an ink jet printhead
    • 用于喷墨打印头的大通道板的支撑结构
    • US06412922B1
    • 2002-07-02
    • US09725297
    • 2000-11-29
    • David Allen MantellLisa A. DelouiseJames F. O'Neill
    • David Allen MantellLisa A. DelouiseJames F. O'Neill
    • B41J205
    • B41J2/14145
    • An ink jet printhead includes an ink reservoir having an fluid inlet for receiving ink, a top portion, and a bottom portion. A channel plate structure that is etched from silicon defines a plurality of microchannels in fluid communication with the reservoir for directing ink from the reservoir. Support structure is provided near the top portion of the reservoir and extending within the reservoir. The support structure is formed to divide the reservoir into at least a pair of reservoir regions and to provide support to the channel plate structure while permitting substantially unobstructed fluid flow to all of the channels at the bottom portion of the reservoir. In addition to forming printheads for ink jet printers, the invention may be applied to other microchannel fluidic devices.
    • 喷墨打印头包括具有用于接收油墨的流体入口,顶部和底部的油墨储存器。 从硅蚀刻的通道板结构限定了与储存器流体连通的多个微通道,用于从储存器引导墨水。 支撑结构设置在储存器的顶部附近并在贮存器内延伸。 支撑结构被形成为将储存器分成至少一对储存器区域,并且为通道板结构提供支撑,同时允许基本上不受阻碍的流体流动到储存器底部的所有通道。 除了形成用于喷墨打印机的打印头之外,本发明可以应用于其它微通道流体装置。
    • 4. 发明授权
    • Method of printing with multiple sized drop ejectors on a single printhead
    • 在单个打印头上使用多种尺寸的喷墨打印机打印方法
    • US06406115B2
    • 2002-06-18
    • US09232461
    • 1999-01-19
    • David Allen MantellGary A. KneezelJames F. O'NeillThomas A. Tellier
    • David Allen MantellGary A. KneezelJames F. O'NeillThomas A. Tellier
    • B41J2205
    • B41J2/5056B41J2/2125
    • A printhead uses large and small drop ejectors to achieve efficient gray scale printing. The printhead is arranged with a close packed configuration of alternating large and small nozzles positioned to maximize coverage while minimizing the volume of ejected ink. The printhead may be operated in a single pass mode or dual pass mode. In the single pass mode, complete coverage is effected by rippling through the odd numbered jets first and then rippling through the even numbered jets. The position of the small spots from the even numbered jets can be adjusted to maximize coverage and counteract offset between nozzle centers. Printheads with different size nozzles can also be operated by a staggered firing method using dual passes to offset spots in the scan direction by shifting the printhead between passes or alternating between groups of large and small nozzles. Further improvements to image quality can be realized by shifting the spots in the direction perpendicular to the scanning direction by tilting the printhead or offsetting the nozzles with respect to the ink channels on the printhead.
    • 打印头使用大而小的墨滴喷射器来实现高效的灰度打印。 打印头布置成具有交替的大和小喷嘴的紧密堆积构造,其被定位成最大化覆盖范围,同时最小化喷射墨的体积。 打印头可以在单程模式或双通道模式下操作。 在单程模式中,完全覆盖通过首先通过奇数射流波纹,然后通过偶数喷射波纹来实现。 可以调整来自偶数喷嘴的小点的位置,以最大化覆盖范围并抵消喷嘴中心之间的偏移。 具有不同尺寸喷嘴的打印头也可以通过交错的点火方法来操作,使用双程通过在扫描方向上偏移打印头,使打印头在通过之间移动或在大喷嘴和小喷嘴组之间交替。 通过倾斜打印头或相对于打印头上的墨水通道偏移喷嘴,可以通过使垂直于扫描方向的方向上的点移动来实现对图像质量的进一步改进。
    • 6. 发明申请
    • STORAGE OF STAMP INFORMATION FOR ERROR DIFFUSION
    • 存储用于错误扩散的印章信息
    • US20090257092A1
    • 2009-10-15
    • US12100643
    • 2008-04-10
    • David Allen MantellJohn Adam HandworkDavid Metcalfe
    • David Allen MantellJohn Adam HandworkDavid Metcalfe
    • H04N1/407
    • H04N1/4053
    • A method and system for processing image data in an image processing device for a plurality of pixel positions within a plurality of scanlines. The method and system includes storing a starting stamp value and a plurality of delta stamp values for the scanline. The stored values being used to generate a pixel stamp value for an input pixel in the scanline, by adding a starting value or previous pixel stamp value and the stored delta stamp value for the input pixel. Further includes receiving an input pixel intensity value for the input pixel and determining an output pixel intensity value. Subsequently, if the output pixel intensity value for the input pixel is equal to a value for a dot or hole the delta stamp values for at least one pixel having a location previous or subsequent to the input pixel can be updated.
    • 一种在多个扫描线内的多个像素位置处理图像处理装置中的图像数据的方法和系统。 该方法和系统包括存储扫描线的起始标记值和多个增量印记值。 所存储的值被用于通过对输入像素添加起始值或先前像素标记值和存储的增量印记值来为扫描线中的输入像素生成像素印记值。 还包括接收输入像素的输入像素强度值并确定输出像素强度值。 随后,如果输入像素的输出像素强度值等于点或孔的值,则可以更新具有在输入像素之前或之后的位置的至少一个像素的增量印记值。
    • 7. 发明授权
    • Countdown stamp error diffusion
    • 倒数邮票错误扩散
    • US07565027B2
    • 2009-07-21
    • US11246626
    • 2005-10-07
    • David Allen Mantell
    • David Allen Mantell
    • G06K9/00G06K9/40G06K9/38G06K15/00H04N1/405
    • H04N1/4052H04N1/52
    • Methods and systems for performing threshold stamping are disclosed. A pixel intensity value for a first pixel may be determined. A pixel value for the first pixel may be retrieved from a memory location corresponding to the first pixel. A threshold delta value may then be determined based on the pixel value and added to a base threshold value to produce a threshold value. If the pixel intensity value exceeds the threshold value, a plurality of pixel values corresponding to a plurality of pixels may be updated. The plurality of pixels may include the first pixel and one or more second pixels. Otherwise, the pixel value for the first pixel may be updated.
    • 公开了用于执行阈值冲压的方法和系统。 可以确定第一像素的像素强度值。 可以从对应于第一像素的存储位置检索第一像素的像素值。 然后可以基于像素值来确定阈值增量值,并将其添加到基本阈值以产生阈值。 如果像素强度值超过阈值,则可以更新与多个像素对应的多个像素值。 多个像素可以包括第一像素和一个或多个第二像素。 否则,可以更新第一像素的像素值。
    • 10. 发明申请
    • System And Method For Defective Inkjet Correction Using Edge Information In An Image
    • 在图像中使用边缘信息的喷墨校正不良的系统和方法
    • US20090315939A1
    • 2009-12-24
    • US12145049
    • 2008-06-24
    • David Allen MantellStephen Michael Kroon
    • David Allen MantellStephen Michael Kroon
    • B41J29/393
    • B41J29/393B41J2/2139B41J2/2146B41J11/002
    • A method for image correction compensates for a defective inkjet in a printhead by distributing compensation values to other image data locations in an image data memory. The method includes searching image data stored in an image data array to detect one or more edges in the image data, modifying an ordered sequence search to search for compensation candidate positions in image data array positions proximate a defective inkjet image data array position in response to an edge being detected proximate to the defective inkjet image data array position, searching the image data array positions proximate the defective inkjet image data array position in accordance with the modified ordered sequence, identifying a compensation candidate image data array position to which a compensation image value can be moved, and moving the compensation image value to the identified compensation candidate image data array position.
    • 一种用于图像校正的方法通过将补偿值分配给图像数据存储器中的其他图像数据位置来补偿打印头中的有缺陷的喷墨。 该方法包括搜索存储在图像数据阵列中的图像数据以检测图像数据中的一个或多个边缘,修改有序序列搜索,以响应于有缺陷的喷墨图像数据阵列位置的图像数据阵列位置中的补偿候补位置来响应于 检测靠近有缺陷的喷墨图像数据阵列位置的边缘,根据修改的有序序列搜索接近缺陷喷墨图像数据阵列位置的图像数据阵列位置,识别补偿图像数据阵列位置,补偿图像值 并且将补偿图像值移动到所识别的补偿候选图像数据阵列位置。