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1. 发明授权

US5401303A Aqueous inks having improved halo characteristics 失效
标题翻译：具有改善的光晕特性的水性油墨
公开(公告)号：US5401303A
公开(公告)日：1995-03-28
申请号：US233796
申请日：1994-04-26
申请人： John L. Stoffel , David H. Donovan , Loren E. Johnson , John R. Moffatt
发明人： John L. Stoffel , David H. Donovan , Loren E. Johnson , John R. Moffatt
IPC分类号： B41M5/00 , C09D11/00 , C09D11/02
CPC分类号： C09D11/40
摘要： Halo effect seen at the interface between a first ink, exhibiting sharp edge acuity, and a second ink, having low surface energy, is addressed by adding certain fluorocarbon compounds to the first ink. Edge acuity of the first ink is maintained.
摘要翻译：通过向第一种油墨中加入某些碳氟化合物来解决在表现出锐利锐度的第一种油墨和具有低表面能的第二种油墨之间的界面处观察到的光晕效应。维持第一墨水的边缘锐度。

2. 发明授权

US5874974A Reliable high performance drop generator for an inkjet printhead 失效
标题翻译：用于喷墨打印头的可靠的高性能液滴发生器
公开(公告)号：US5874974A
公开(公告)日：1999-02-23
申请号：US608376
申请日：1996-02-28
申请人： Kenneth J. Courian , John L. Stoffel , Richard A. Sader , Keshava A. Prasad , Steven L. Webb , David H. Donovan , Jules G. Moritz, III , Brian J. Keefe , Steven W. Steinfield , Winthrop D. Childers
发明人： Kenneth J. Courian , John L. Stoffel , Richard A. Sader , Keshava A. Prasad , Steven L. Webb , David H. Donovan , Jules G. Moritz, III , Brian J. Keefe , Steven W. Steinfield , Winthrop D. Childers
IPC分类号： B41J2/05 , B41J2/14 , B41J2/16 , B41J2/175
CPC分类号： B41J2/1643 , B41J2/04511 , B41J2/04541 , B41J2/04543 , B41J2/04546 , B41J2/0458 , B41J2/04581 , B41J2/14024 , B41J2/1404 , B41J2/14072 , B41J2/14129 , B41J2/14145 , B41J2/14201 , B41J2/1433 , B41J2/1603 , B41J2/1623 , B41J2/1625 , B41J2/1628 , B41J2/1631 , B41J2/1634 , B41J2202/13
摘要： An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being overdamped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as isopropyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.
摘要翻译：喷墨墨滴喷射系统包括打印头部件和油墨的组合，其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。使用大约55微米的短搁架（墨水源到墨水喷射元件的距离）提供了非常高的速度补充。然而，它具有高速补充的特点，它具有过度阻尼的倾向。为了提供必要的阻尼，油墨的粘度应大于约2cp。以这种方式，墨水和结构共同工作，提供了一个可在高频下稳定运行的调谐系统。油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。如果墨水没有足够的干燥速度，高速度就没有什么价值。这通过向油墨中加入醇或醇和表面活性剂来实现。快速干燥时间通过醇，例如异丙醇与4或5个碳醇或与异丙醇加表面活性剂的组合来实现。短架（90-130微米），油墨粘度约为3cp，表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。将搁板长度减小至约55微米，与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。作为使用颜料基油墨的结果，实现了高的光密度，以及优异的耐久性（不褪色和更好的耐水性）和良好的稳定性。优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。

3. 发明授权

US5946012A Reliable high performance drop generator for an inkjet printhead 失效
标题翻译：用于喷墨打印头的可靠的高性能液滴发生器
公开(公告)号：US5946012A
公开(公告)日：1999-08-31
申请号：US90968
申请日：1998-06-04
申请人： Kenneth J. Courian , John L. Stoffel , Richard A. Sader , Keshava A. Prasad , Steven L. Webb , David H. Donovan , Jules G. Moritz, III , Brian J. Keefe , Steven W. Steinfield , Winthrop D. Childers
发明人： Kenneth J. Courian , John L. Stoffel , Richard A. Sader , Keshava A. Prasad , Steven L. Webb , David H. Donovan , Jules G. Moritz, III , Brian J. Keefe , Steven W. Steinfield , Winthrop D. Childers
IPC分类号： B41J2/05 , B41J2/14 , B41J2/16
CPC分类号： B41J2/1643 , B41J2/04511 , B41J2/04541 , B41J2/04543 , B41J2/04546 , B41J2/0458 , B41J2/04581 , B41J2/14024 , B41J2/1404 , B41J2/14072 , B41J2/14129 , B41J2/14145 , B41J2/14201 , B41J2/1433 , B41J2/1603 , B41J2/1623 , B41J2/1625 , B41J2/1628 , B41J2/1631 , B41J2/1634 , B41J2202/13
摘要： An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being over-damped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as iso-propyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.
摘要翻译：喷墨墨滴喷射系统包括打印头部件和油墨的组合，其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。使用大约55微米的短搁架（墨水源到墨水喷射元件的距离）提供了非常高的速度补充。然而，高速补充的特征是它具有过度阻尼的倾向。为了提供必要的阻尼，油墨的粘度应大于约2cp。以这种方式，墨水和结构共同工作，提供了一个可在高频下稳定运行的调谐系统。油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。如果墨水没有足够的干燥速度，高速度就没有什么价值。这通过向油墨中加入醇或醇和表面活性剂来实现。快速干燥时间是通过醇，如异丙醇与4或5碳醇或与异丙醇加表面活性剂的组合来实现的。短架（90-130微米），油墨粘度约为3cp，表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。将搁板长度减小至约55微米，与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。作为使用颜料基油墨的结果，实现了高的光密度，以及优异的耐久性（不褪色和更好的耐水性）和良好的稳定性。优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。

4. 发明申请

US20090153605A1 DOUBLE-SIDED PRINTING SYSTEM 有权
标题翻译：双面打印系统
公开(公告)号：US20090153605A1
公开(公告)日：2009-06-18
申请号：US12253388
申请日：2008-10-17
申请人： Dale D. Timm, JR. , John A. Dangelawicz , David H. Donovan , Shilin Guo , Behnam Baslani , David Luis Pereira
发明人： Dale D. Timm, JR. , John A. Dangelawicz , David H. Donovan , Shilin Guo , Behnam Baslani , David Luis Pereira
IPC分类号： B41J29/38
CPC分类号： B41J3/60 , B41J2/0057 , B41J11/0085
摘要： A method for double-sided printing may include ejecting printing fluid from a fluid ejector to a platen configured to receive print media, the platen supporting a nonabsorbent substrate. In any sequence, a first print media side and a second print media side may be printed by ejecting printing fluid from the fluid ejector to the first print media side, and contacting the second print media side with the nonabsorbent substrate to transfer printing fluid from the nonabsorbent substrate to the second print media side. A method for double-side printing may further include increasing the contact between the second print media side with the nonabsorbent substrate to increase transfer of printing fluid.
摘要翻译：用于双面打印的方法可以包括将打印流体从流体喷射器喷射到被配置为接收打印介质的压板，所述压板支撑非吸收性基板。以任何顺序，可以通过将印刷流体从流体喷射器喷射到第一印刷介质侧来打印第一印刷介质侧和第二印刷介质侧，并且使第二印刷介质侧与非吸收性基材接触，以将印刷液从非吸收性基材到第二印刷介质侧。双面印刷的方法还可以包括增加第二印刷介质侧与非吸收性基材之间的接触，以增加印刷液的转移。

5. 发明授权

US6076915A Inkjet printhead calibration 有权
标题翻译：喷墨打印头校准
公开(公告)号：US6076915A
公开(公告)日：2000-06-20
申请号：US128455
申请日：1998-08-03
申请人： Paul David Gast , Mark S Hickman , David H. Donovan , Xavier Gros , Antoni Gil Miquel
发明人： Paul David Gast , Mark S Hickman , David H. Donovan , Xavier Gros , Antoni Gil Miquel
IPC分类号： B41J2/01 , B41J2/21 , B41J29/393 , B41J29/46
CPC分类号： B41J2/2135 , B41J29/393 , B41J19/142
摘要： In various methods, image registration variations among test patterns are used to calibrate misalignment among one or more printheads, paper advance distance, different portions of an inkjet printhead, or bidirectional printhead alignment. A set of test patterns are printed. Each pattern includes a reference portion and a varying portion. The varying portion is changed from pattern to pattern in a manner for testing a parameter being calibrated. An optical sensor scans each test pattern. The parameter setting for the lest pattern having the highest reflectance (i.e., most blank space) is selected as the calibrated parameter value.
摘要翻译：在各种方法中，使用测试图案之间的图像配准变化来校准一个或多个打印头之间的未对准，纸张提前距离，喷墨打印头的不同部分或双向打印头对准。打印一组测试图案。每个图案包括参考部分和变化部分。变化部分以模式改变为模式，以便测试被校准的参数。光学传感器扫描每个测试模式。选择具有最高反射率（即最大空白间隔）的最小图案的参数设置作为校准参数值。

6. 发明授权

US08870326B2 Printing near saturation 有权
标题翻译：打印近饱和
公开(公告)号：US08870326B2
公开(公告)日：2014-10-28
申请号：US13276911
申请日：2011-10-19
申请人： David H. Donovan , Shilin Guo
发明人： David H. Donovan , Shilin Guo
IPC分类号： B41J2/205 , H04N1/60 , H04N1/54
CPC分类号： H04N1/54 , B41J2/2056 , H04N1/6025
摘要： A printer is disclosed in one example. The printer controls the amounts of the inks that are used when printing. The printer prints colors near saturation onto a media using mostly a first ink and prints saturated colors onto the media using mostly a second ink. The second ink has a reduced loading of the colorant in the first ink.
摘要翻译：在一个示例中公开了打印机。打印机控制打印时使用的墨水量。打印机将几乎饱和的颜色打印到使用大部分第一种墨水的介质上，并使用大部分第二种墨水将饱和的颜色打印到介质上。第二种墨水在第一种墨水中着色剂的负载减小。

7. 发明授权

US06276777B1 Variable maximum operating temperature for a printhead 失效
标题翻译：打印头的可变最大工作温度
公开(公告)号：US06276777B1
公开(公告)日：2001-08-21
申请号：US09120682
申请日：1998-07-21
申请人： Stefano Schiaffino , Sebastia Castelltort , David H. Donovan
发明人： Stefano Schiaffino , Sebastia Castelltort , David H. Donovan
IPC分类号： B41J2938
CPC分类号： B41J2/17546 , B41J2/04515 , B41J2/0454 , B41J2/04551 , B41J2/04563 , B41J2/0458 , B41J29/393
摘要： A variable maximum operating temperature for a printhead is defined and utilized within both a system and a method. The variable maximum operating temperature varies according to one or more operating conditions within a printer into which the printhead may be installed. If a detected temperature of the printhead is greater than the variable maximum operating temperature for a detected operating condition, the printer will be shut down to prevent overheating. Accordingly, the system and method extend the useful life of the printhead and reduce paper waste.
摘要翻译：打印头的可变最大工作温度在系统和方法中均被定义和使用。可变最大工作温度根据可以安装打印头的打印机内的一个或多个操作条件而变化。如果检测到的打印头的检测温度大于检测到的操作条件的可变最大工作温度，则打印机将被关闭以防止过热。因此，该系统和方法延长了打印头的使用寿命并减少了纸张浪费。

8. 发明授权

US5851273A Dye set for improved ink-jet print quality 失效
标题翻译：喷墨打印机可提供喷墨打印质量
公开(公告)号：US5851273A
公开(公告)日：1998-12-22
申请号：US887164
申请日：1997-07-02
申请人： Peter C. Morris , David H. Donovan , Gregg A. Lane , Larrie A. Deardurff
发明人： Peter C. Morris , David H. Donovan , Gregg A. Lane , Larrie A. Deardurff
IPC分类号： B41J2/01 , B41M5/00 , C09D11/00 , C09D11/02
CPC分类号： C09D11/40
摘要： In accordance with the invention a set of dyes suitable for use in ink-jet inks and method for formulating the same are provided. A specific dye set for formulating the yellow, cyan, magenta, and optionally black inks is disclosed, comprising Direct Yellow 132, Direct Blue 199, Magenta 377, and optionally Pacified Reactive Black 31 dyes, respectively. This dye set provides ink-jet prints able to match printed color standards such as specification for web offset publications (SWOP) and Euroweb, with excellent lightfade and pen reliability performance.
摘要翻译：根据本发明，提供一组适用于喷墨油墨的染料及其配制方法。公开了用于配制黄色，青色，品红色和任选黑色油墨的特定染料组，其包括直接黄132，直接蓝199，洋红色377和任选的加热活性黑31染料。该染料组提供能够匹配印刷色标准的喷墨打印机，例如卷筒纸胶版出版物（SWOP）和Euroweb的规格，具有出色的淡入淡出和笔可靠性。

9. 发明授权

US07417768B1 Apparatus and method for mitigating colorant-deposition errors in incremental printing 有权
标题翻译：用于减轻增量印刷中着色剂沉积误差的装置和方法
公开(公告)号：US07417768B1
公开(公告)日：2008-08-26
申请号：US09688610
申请日：2000-10-13
申请人： David H. Donovan , Miquel Boleda , Johan Lammens , Francesc Subirada
发明人： David H. Donovan , Miquel Boleda , Johan Lammens , Francesc Subirada
IPC分类号： G06K15/00 , H04N1/40
CPC分类号： H04N1/4015 , G06K15/102 , G06K2215/0094
摘要： CDE is measured for each nozzle array, to enable modification of a mapping between input image data and intended printing marks to compensate for the CDE. Printing proceeds using the modified mapping, which is either an optical-density transformation of data to printing marks or a spatial-resolution relation between image data and intended pixel grid. The density transformation preferably includes a dither mask (but can be error-diffusion thresholding instead); the resolution relation includes scaling of image data to pixel grid. For some invention forms, CDE includes printing-density defects, measured and used to derive a correction pattern—in turn used to modify halftone thresholding. For other forms CDE includes swath-height error, but still this is measured and used to derive a correction pattern etc. For still other forms, however, CDE includes swath-height error and correction takes the form of scaling. When the halftoning forms are applied to plural-pass printing, a printmask is used to map the dither mask etc. to the nozzle array, enabling application of the correction to the mask. Halftone forms ideally uses a gamma function, though threshold or linear corrections are possible instead. Halftone correction is effective in single-pass printing. The swath-height correction can modify heights of all nozzle arrays. Computations are done at most only once for a full image.
摘要翻译：测量每个喷嘴阵列的CDE，以便能够修改输入图像数据和预期打印标记之间的映射，以补偿CDE。使用修改的映射进行打印，该映射是数据到打印标记的光密度变换或图像数据与预期像素网格之间的空间分辨率关系。密度变换优选包括抖动掩模（但可以是误差扩散阈值代替）; 分辨率关系包括将图像数据缩放到像素网格。对于一些发明形式，CDE包括测量并用于导出校正模式的印刷密度缺陷，反过来用于修改半色调阈值。对于其他形式，CDE包括扫描高度误差，但仍然被测量并用于导出校正模式等。然而，对于其他形式，CDE包括幅高错误，校正采用缩放的形式。当将半色调形式应用于多遍打印时，使用打印掩模将抖动掩模等映射到喷嘴阵列，使得能够对掩模应用校正。半色调形式理想地使用伽玛功能，尽管可以改变阈值或线性校正。半色调校正在单程打印中有效。扫描高度校正可以改变所有喷嘴阵列的高度。对于完整图像，计算最多只能完成一次。

10. 发明授权

US06293657B1 Mid plot refill technique for large scale printers 失效
标题翻译：适用于大型打印机的中间图填充技术
公开(公告)号：US06293657B1
公开(公告)日：2001-09-25
申请号：US09183348
申请日：1998-10-30
申请人： Javier Salvador Lagares Garcia , David H. Donovan
发明人： Javier Salvador Lagares Garcia , David H. Donovan
IPC分类号： B41J217
CPC分类号： B41J2/17 , B41J2/2132 , B41J11/001
摘要： Techniques for pausing and resuming printing operations in mid-plot while reducing visible artifacts. A pause row/swath location is determined at which printing is to be paused. In one pause/resume mode, printing of all rows and all pixels from commencement of printing through the row location is completed, and no pixels in rows immediately following the row location are printed. The printing is paused for a time interval, and operations such as a pen refill can be performed. Printing is resumed at a resume row location immediately following the pause row location to print only rows following the pause row, wherein wet ink is not applied to locations printed prior to the pausing. In another pause/resume mode, in a multi-pass print of an image, the pause occurs upon completion of a pass without completing all printing prior to the pause row. Following the pause interval, printing is resumed, as though a pause had not occurred. The pause/resume mode is selected in dependence on print parameters, including media type and print quality.
摘要翻译：暂停和恢复中期打印操作的技术，同时减少可见的伪影。确定要暂停打印的暂停行/条幅位置。在一个暂停/恢复模式下，完成从打印开始通过行位置打印所有行和所有像素，并且不打印紧跟在行位置之后的行中的像素。打印暂停一段时间间隔，可以执行诸如笔笔芯的操作。在暂停行位置之后的恢复行位置恢复打印，仅打印暂停行之后的行，其中湿墨水不被施加到在暂停之前打印的位置。在另一个暂停/恢复模式中，在图像的多遍打印中，在完成通过之后暂停发生，而不在暂停行之前完成所有打印。在暂停间隔之后，恢复打印，就好像没有发生暂停。根据打印参数选择暂停/恢复模式，包括介质类型和打印质量。

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