Patents by Inventor Gary A. Kneezel
Gary A. Kneezel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100150580Abstract: A printing system includes a movable tray for holding recording media. The movable tray includes spaced-apart reference marks for determining distance traveled by the tray. A reference-mark optical detector is positioned to provide a field of view through which the reference marks pass. An identifying-mark optical detector provides a field of view through which media-type identifying marks on a piece of recording medium pass. A signal processor provides an output relative to: a) amount of reference marks passing through the field of view of the reference-mark optical detector, and b) signal variation in a signal provided by the identifying-mark optical detector. A look-up table includes media identification signal patterns that are correlated to corresponding media types. Finally, a comparator compares the output of the signal processor to the media identification signal patterns in the look-up table in order to identify type of recording medium.Type: ApplicationFiled: December 11, 2008Publication date: June 17, 2010Inventors: Donald V. Brumbaugh, Gary A. Kneezel
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Publication number: 20100148432Abstract: A method for measuring dimensions of a stack of medium in a media input location of an imaging system, includes emitting light along a direction that is at a predetermined angle with respect to the normal of the planar surface of the media input location. An array of photosensors are disposed along an array direction that lies in a plane defined by the direction of the light and the normal of the planar surface. The photosensors receive a spatially-varying pattern of light reflected from a surface that is substantially parallel to the planar surface of the media input location to provide corresponding electronic signal data from the photosensor array for subsequent transmission to a printing system controller. The varying electronic signal data is used to provide a measurement of the one or more dimensions corresponding to the stack of medium.Type: ApplicationFiled: December 11, 2008Publication date: June 17, 2010Inventors: James J. Haflinger, Arthur K. Wilson, Gary A. Kneezel
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Patent number: 7731341Abstract: A fluid ejection device, a method of cleaning the device, and a method of operating the device are provided. The device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate and has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall. The first wall and the second wall are positioned at an angle other than 90° relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber.Type: GrantFiled: September 7, 2005Date of Patent: June 8, 2010Assignee: Eastman Kodak CompanyInventors: David P. Trauernicht, Christopher N. Delametter, John A. Lebens, James M. Chwalek, Gary A. Kneezel
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Publication number: 20090322822Abstract: The present invention relates to a method that enables image quality of a printed image to be maintained by reducing unintended variations in drop volume, through the adjustment of ink drop ejecting conditions depending on the amount of ink remaining in an ink tank chamber or reservoir, and/or the ink demand for printing an image. The method of printing of the present invention comprises: providing a printhead in fluid communication with an ink chamber or reservoir; detecting at least one parameter related to an amount of negative pressure provided to the printhead; and adjusting an ink drop ejecting condition of the printhead as a function of the parameter so that an amount of variation in size of ejected ink drop is reduced.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventors: Gary A. Kneezel, R. Winfield Trafton, Frederick A. Donahue
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Publication number: 20090322806Abstract: The present invention relates generally to the field of inkjet printing, and in particular to a method of printing that provides improved ink usage efficiency. In the method of the present invention a threshold level of ink in an ink chamber or reservoir is stored. The remaining amount of ink in the ink chamber or reservoir is monitored and compared to the threshold level. When the remaining amount of ink in the ink chamber or reservoir is below the threshold level, an ink throughput through the printhead for a printed image is reduced.Type: ApplicationFiled: June 26, 2008Publication date: December 31, 2009Inventors: Frederick A. Donahue, R. Winfield Trafton, Gary A. Kneezel
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Publication number: 20090295861Abstract: A fluid ejection device, a method of cleaning the device, and a method of operating the device are provided. The device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate and has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall. The first wall and the second wall are positioned at an angle other than 90° relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber.Type: ApplicationFiled: August 13, 2009Publication date: December 3, 2009Inventors: David P. Trauernicht, Christopher N. Delametter, John A. Lebens, James M. Chwalek, Gary A. Kneezel
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Patent number: 7537327Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surface(s) of the upper and/or lower substrates and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.Type: GrantFiled: November 29, 2006Date of Patent: May 26, 2009Assignee: Xerox CorporationInventor: Gary A. Kneezel
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Patent number: 7422301Abstract: A method and apparatus for reducing intercolor bleed using pixel spot size control to improve print quality is provided. The method includes printing pixels having a first spot size in an image region having a boundary between a first color portion and a second color portion of the image by ejecting first sized ink drops from the printhead nozzles, and printing border pixels having spot sizes smaller than the first spot size in the image region by ejecting smaller ink drops from the printhead nozzles, wherein the smaller ink drops are smaller than the first sized ink drops. A printing system is provided having means for printing pixels in the region having the first spot size and means for printing border pixels having spot sizes smaller than the first spot size.Type: GrantFiled: January 10, 2005Date of Patent: September 9, 2008Assignee: Xerox CorporationInventors: Gary A. Kneezel, Thomas P. Courtney, Joseph F. Stephany, Richard V. LaDonna, Juan J. Becerra
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Publication number: 20080180485Abstract: A liquid ejector includes a structure defining a chamber. The chamber includes a first surface and a second surface. The first surface includes a nozzle orifice. A drop forming mechanism is located on the second surface of the chamber opposite the nozzle orifice. A first liquid feed channel and a second liquid feed channel are in fluid communication with the chamber. A first segment of a segmented liquid inlet is in fluid communication with the first liquid feed channel and a second segment of the segmented liquid inlet is in fluid communication with the second liquid feed channel.Type: ApplicationFiled: January 25, 2007Publication date: July 31, 2008Inventors: Christopher N. Delametter, John A. Lebens, David P. Trauernicht, James M. Chwalek, Yonglin Xie, Gary A. Kneezel, Christopher R. Morton, Cathie J. Burke
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Publication number: 20080156768Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surface(s) of the upper and/or lower substrates, and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.Type: ApplicationFiled: November 30, 2007Publication date: July 3, 2008Applicant: Xerox CorporationInventor: Gary A. Kneezel
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Patent number: 7354522Abstract: A method of etching a substrate and an article(s) formed using the method are provided. The method includes providing a substrate; coating a region of the substrate with a temporary material having properties that enable the temporary material to remain substantially intact during subsequent processing and enable the temporary material to be removed by a subsequent process that allows the substrate to remain substantially unaltered; removing a portion of the substrate to form a feature, at least some of the removed portion of the substrate overlapping at least a portion of the coated region of the substrate while allowing the temporary material substantially intact; and removing the temporary material while allowing the substrate to remain substantially unaltered.Type: GrantFiled: August 4, 2004Date of Patent: April 8, 2008Assignee: Eastman Kodak CompanyInventors: Gary A. Kneezel, John A. Lebens, Christopher N. Delametter, David P. Trauernicht, James M. Chwalek
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Patent number: 7275817Abstract: Disclosed is a process for forming a channel wafer for a novel ink jet printhead, having an ink particle-filter layer over the ink-inlet surface thereof. The process includes the steps of applying a thin coating of a heat-curable, photopatternable polymer composition to an intermediate substrate having a release surface and drying the coating to form a semi-solid adhesive layer. The layer and supporting substrate are pressed against the ink-inlet surface of a channel wafer with an optional adhesive layer to bond the layer to the ink inlet surface. The substrate is separated to transfer the contacting area of the semi-solid layer to the ink-inlet surface as a laminate, and the semi-solid layer is exposed through a filter-forming mask and ink particle-filter openings are developed therethrough, either before or after transfer of the semi-solid adhesive layer from the intermediate substrate to the ink-inlet surface of the channel wafer, and the filter layer is cured.Type: GrantFiled: May 20, 2005Date of Patent: October 2, 2007Assignee: Xerox CorporationInventors: Shan Clark, Gary Kneezel, Ram Narang, Bidan Zhang, Almon Fisher
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Patent number: 7258410Abstract: A method and apparatus for reducing intercolor bleed to improve print quality is provided. This technique includes the detection of an edge between a black portion color portion of an image to be printed, the edge being disposed in a region of color pixels and black pixels to be printed in a first configuration of drops, modifying the first configuration of drops to obtain a second configuration of drops, and printing the image by ejecting the drops from a printhead based on the second configuration.Type: GrantFiled: November 10, 2004Date of Patent: August 21, 2007Assignee: Xerox CorporationInventors: Peter A. Torpey, Gary A. Kneezel
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Publication number: 20070153060Abstract: A fluid ejecting device and method of forming same are provided. The fluid ejecting device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate. The nozzle plate has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall with the first wall and the second wall being positioned at an angle relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber. A source of fluid impedance comprises a physical structure located between the nozzle and the fluid delivery channel.Type: ApplicationFiled: March 13, 2007Publication date: July 5, 2007Inventors: James Chwalek, John Lebens, Christopher Delametter, David Trauernicht, Gary Kneezel
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Patent number: 7213908Abstract: A fluid ejecting device and method of forming same are provided. The fluid ejecting device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate. The nozzle plate has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall with the first wall and the second wall being positioned at an angle relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber. A source of fluid impedance includes a physical structure located between the nozzle and the fluid delivery channel.Type: GrantFiled: August 4, 2004Date of Patent: May 8, 2007Assignee: Eastman Kodak CompanyInventors: James M. Chwalek, John A. Lebens, Christopher N. Delametter, David P. Trauernicht, Gary A. Kneezel
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Publication number: 20070068866Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surface(s) of the upper and/or lower substrates and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.Type: ApplicationFiled: November 29, 2006Publication date: March 29, 2007Applicant: XEROX CORPORATIONInventor: Gary Kneezel
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Publication number: 20070052766Abstract: A fluid ejection device, a method of cleaning the device, and a method of operating the device are provided. The device includes a substrate having a first surface and a second surface located opposite the first surface. A nozzle plate is formed over the first surface of the substrate and has a nozzle through which fluid is ejected. A drop forming mechanism is situated at the periphery of the nozzle. A fluid chamber is in fluid communication with the nozzle and has a first wall and a second wall. The first wall and the second wall are positioned at an angle other than 90° relative to each other. A fluid delivery channel is formed in the substrate and extends from the second surface of the substrate to the fluid chamber. The fluid delivery channel is in fluid communication with the fluid chamber.Type: ApplicationFiled: September 7, 2005Publication date: March 8, 2007Inventors: David Trauernicht, Christopher Delametter, John Lebens, James Chwalek, Gary Kneezel
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Patent number: 7172076Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surfaces(s) of the upper and/or lower substrates and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.Type: GrantFiled: December 19, 2003Date of Patent: February 6, 2007Assignee: Xerox CorporationInventor: Gary A. Kneezel
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Patent number: 7163275Abstract: Methods and apparatus provide for automatic fluid ejector alignment and performance evaluation and modification in one or multiple planes. A fluid ejector fires a drop through a drop detection module. A signal indicating drop presence or absence is sent to a computer. The computer analyzes the data, and makes a compensation determination of a preferred method of using the fluid ejector. The compensation determination may include electronically modifying the image data to be printed, physically manipulating the fluid ejector, completely skipping the fluid ejector during printing operations, or in some other way modifying the fluid ejector or image data such that apparent printed image error due to fluid ejector alignment or performance error is reduced.Type: GrantFiled: January 8, 2004Date of Patent: January 16, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Andrew S. Yeh, Roger G. Markham, Lesley P. Dudek, Eduardo M. Freire, Gary A. Kneezel, Christopher R. Morton
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Patent number: 7125110Abstract: Temperature regulating system for use in fluid ejection devices, such as inkjet printing devices, are provided. Such temperature regulating systems can include an ink reservoir, a printhead and optionally an intermediate ink container. Exchange of ink between the ink reservoir, or optionally the intermediate ink container, and the printhead regulates the temperature of the printhead and makes the temperature substantially uniform from drop ejector to drop ejector. Optionally, the ink is transported in a fluid communication path that is in contact with a thermally conductive substrate to further dissipate heat. Printing devices comprising such inkjet cartridges are also provided.Type: GrantFiled: February 17, 2004Date of Patent: October 24, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Eric Alan Merz, Brian S. Hilton, Gary A. Kneezel