公开(公告)号：US06890051B2

公开(公告)日：2005-05-10

申请号：US10425366

申请日：2003-04-29

Applicant: David R. Otis, Jr.

Inventor： David R. Otis, Jr.

IPC: B41J2/175 ,  B41J29/393 ,  B41J29/38

CPC classification number: B41J2/17509

Abstract: Methods and apparatus are disclosed for reducing the print-job completion time in a printing system having at least one printhead that is intermittently refilled from an “off-axis” ink supply during non-printing intervals. A reduced refill time is determined from an estimation of the amount of ink expended since the printhead was previously refilled, and on a characterization of the ink refill behavior of the printing system. The refill behavior of the printing system may be quantified in data stored in a memory device integral with a replaceable ink supply.

Abstract translation: 公开了用于在打印系统中减少打印作业完成时间的方法和装置，该打印系统具有在非打印间隔期间从“离轴”墨水供应间歇地重新填充的至少一个打印头。 减少的再填充时间是根据从预先重新填充打印头以来消耗的墨量的估计以及打印系统的墨水再填充行为的表征来确定的。 印刷系统的再填充行为可以在存储在与可替换的墨水供应一体的存储装置中的数据中进行量化。

公开(公告)号：US06464346B2

公开(公告)日：2002-10-15

申请号：US09817084

申请日：2001-03-26

Applicant: David R. Otis, Jr. ,  Charles R. Steinmetz ,  John F. Wilson ,  David Olsen

Inventor： David R. Otis, Jr. ,  Charles R. Steinmetz ,  John F. Wilson ,  David Olsen

IPC: B41J2175

CPC classification number: B41J2/17556 ,  B41J2/17509

Abstract: An ink containment and delivery system provides high sustained flow rates, allows higher “burst” (short time interval) flow rates, and allows bubble movement through the system conduits to the printhead, all while holding the printhead ink pressure in a range required for optimum printhead operation. The system includes an ink supply with a first, upstream pressure regulator which maintains a negative ink pressure within the ink supply. A second, downstream pressure regulator at the printhead maintains negative pressure in the printhead, and allows some compliance about the set point. The ink containment and delivery system allows drool-free separability of the ink supply and the printhead.

Abstract translation: 墨水容纳和输送系统提供高持续流速，允许更高的“爆发”（短时间间隔）流速，并且允许气泡通过系统导管移动到打印头，同时将打印头墨水压力保持在最佳值所需的范围内 打印头操作。 该系统包括具有第一上游压力调节器的墨水供应器，其保持墨水供应内的负墨水压力。 打印头处的第二个下游压力调节器在打印头中保持负压，并允许对设定点的一些约束。 墨水容纳和输送系统允许墨水供应和打印头无流体分离。

公开(公告)号：US06458526B1

公开(公告)日：2002-10-01

申请号：US09494146

申请日：2000-01-28

Applicant: Carol T. Schembri ,  David R. Otis, Jr. ,  Philip A. Harding

Inventor： Carol T. Schembri ,  David R. Otis, Jr. ,  Philip A. Harding

IPC: C12Q100

CPC classification number: B01L3/508 ,  B01L2200/142 ,  B01L2300/0636 ,  B01L2300/10 ,  G01N33/5302 ,  Y10S436/807 ,  Y10S436/809

Abstract: The invention relates to an apparatus for inhibiting bubble formation during a chemical reaction. The apparatus comprises a base having a substantially planar surface with at least a portion of the surface representing a fluid contact area and a fluid comprising a liquid component in contact therewith. A cover and the base form an enclosure containing the fluid and a gas. A non-free-floating fluid-distribution member is provided that has a substantially flat surface in contact with the fluid. The member surface is disposed in an opposing and substantially parallel manner at a specified distance from fluid contact area. A gas-fluid interface having an interface radius is formed between the fluid and the gas. The apparatus also comprises means for maintaining a desired vapor pressure of the liquid component in the gas and means for immobilizing the cover with respect to the base. The interface radius is selected to result in a predetermined critical radius below which a bubble will shrink. The invention also encompasses a method for inhibiting bubble formation during a chemical reaction using the aforementioned apparatus.

Abstract translation: 本发明涉及一种用于在化学反应期间抑制气泡形成的装置。 该装置包括具有基本上平坦的表面的基部，其表面的至少一部分表示流体接触区域，以及包含与其接触的液体部件的流体。 盖子和底座形成包含流体和气体的外壳。 提供了一种非自由浮动的流体分配构件，其具有与流体接触的基本平坦的表面。 构件表面以相对且基本平行的方式设置在与流体接触区域相距一定距离处。 在流体和气体之间形成具有界面半径的气体 - 流体界面。 该装置还包括用于保持气体中的液体组分的理想蒸汽压力的装置和用于相对于基座固定盖子的装置。 选择界面半径以产生预定的临界半径，在此之下气泡将收缩。 本发明还包括使用上述装置在化学反应期间抑制气泡形成的方法。

公开(公告)号：US5109234A

公开(公告)日：1992-04-28

申请号：US583297

申请日：1990-09-14

Applicant: David R. Otis, Jr. ,  May F. Ho

Inventor： David R. Otis, Jr. ,  May F. Ho

IPC: B41J2/05

CPC classification number: B41J2/04528 ,  B41J2/04563 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/04596 ,  B41J2/04598

Abstract: A thermal technique for reducing print density shifts due to print wait time in thermal ink jet printers. The ink jet firing resistors of the printhead are driven with warming pulses having a pulse width insufficient to cause ink drop firing at the warming pulse frequency. They are driven for an interval that depends on the amount of time that has elapsed since printing by the printhead last occurred, or an interval that depends on the amount of decrease in the printhead temperature since printing stopped. In a particular embodiment of the printhead warming technique, the warming pulses have the same amplitude as the ink drop firing pulses, and a higher frequency.