Abstract: An inkjet printer includes one or more printhead maintenance stations. Each station is positioned within the print zone of the inkjet printer and includes at least one printhead cleaning module. The at least one printhead cleaning module is configured to move from a first position that is not between the media transport and the at least one printhead to a second position where the at least one printhead cleaning module is between the at least one printhead and the media transport.

Abstract: An inkjet printing system, including an inlet in a print head to receive ink from an ink supply, a plurality of nozzles to eject ink in the print head, an ink pressure sensor disposed in an ink path, the ink pressure sensor configured to determine an ink pressure of the ink in the print head and output a signal indicating the ink pressure, and a controller in the print head configured to receive and process the signal indicating the ink pressure from the ink pressure sensor. The inkjet printing system may also include a memory to store an ink pressure and time profile. The controller may also output a signal to stop ejecting ink from the plurality of nozzles when the ink pressure is either below a negative threshold or above a positive threshold.

Abstract: An inkjet printing system, including an inlet in a print head to receive ink from an ink supply, a plurality of nozzles to eject ink in the print head, an ink pressure sensor disposed in an ink path, the ink pressure sensor configured to determine an ink pressure of the ink in the print head and output a signal indicating the ink pressure, and a controller in the print head configured to receive and process the signal indicating the ink pressure from the ink pressure sensor. The inkjet printing system may also include a memory to store an ink pressure and time profile. The controller may also output a signal to stop ejecting ink from the plurality of nozzles when the ink pressure is either below a negative threshold or above a positive threshold.

Abstract: A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.

Abstract: A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.

Abstract: A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.

Abstract: A print head includes a substrate having a hole, a circuit on the substrate, the circuit having traces and a hole corresponding to the hole in the substrate, the hole forming a fluid path, and a raised structure on the substrate around the fluid path, the raised structure positioned to seal the circuit from the fluid path.

Abstract: A flex circuit board provides islands of electrically isolated material surrounding openings in the flex circuit board to preserve fluid integrity of passageways passing through an electrically insulating layer of the flex circuit board. The electrically isolated islands surround exits of the passageways through the electrically insulating material and extend the passageways through an electrically conductive layer of the flex circuit board. Consequently, fluid passing through the passageways and electrically isolated islands in the flex circuit board is not subjected to electrical current.

Abstract: A flex circuit board provides islands of electrically isolated material surrounding openings in the flex circuit board to preserve fluid integrity of passageways passing through an electrically insulating layer of the flex circuit board. The electrically isolated islands surround exits of the passageways through the electrically insulating material and extend the passageways through an electrically conductive layer of the flex circuit board. Consequently, fluid passing through the passageways and electrically isolated islands in the flex circuit board is not subjected to electrical current.

Abstract: An electrical interconnect has an adhesive layer in which is formed an array of apertures, the apertures being of non-circular shape. An electrical circuit apparatus has a first circuit having at least one electrical contact, a second circuit having at least one electrical contact aligned to the electrical contact of the first circuit, and a standoff structure between the first and second circuits having at least one aperture aligned to one electrical contact of the first and second circuits, the aperture being of a non-circular shape.

Abstract: Exemplary embodiments provide interconnects and methods for interconnecting an electrical device array with a flexible circuit by filling a chemically-etched or laser-ablated integral stencil with conductive materials.

Abstract: A print head has an array of jets to dispense ink onto a printing surface, an array of actuators to cause the jets to dispense ink and an ink manifold to route ink to the array of jets, the ink manifold being formed of at least one polymer layers. A print manifold has an array of jets formed on a metal plate, at least one polymer layer mounted on the metal plate, the polymer layer including an array of manifolds corresponding to the array of jets and an electronic circuit board mounted on the polymer layer, the electronic circuit board having an array of holes corresponding to the array of manifolds. A print system includes at least one ink reservoir at least one umbilical to transport ink out of the ink reservoir and a print head as described above.

Abstract: Exemplary embodiments provide interconnects and methods for interconnecting an electrical device array with a flexible circuit by filling a chemically-etched or laser-ablated integral stencil with conductive materials

Abstract: An electrical interconnect has an adhesive layer in which is formed an array of apertures, the apertures being of non-circular shape. An electrical circuit apparatus has a first circuit having at least one electrical contact, a second circuit having at least one electrical contact aligned to the electrical contact of the first circuit, and a standoff structure between the first and second circuits having at least one aperture aligned to one electrical contact of the first and second circuits, the aperture being of a non-circular shape.

Abstract: An electrical interconnect has an adhesive layer in which is formed an array of apertures, the apertures being of non-circular shape. An electrical circuit apparatus has a first circuit having at least one electrical contact, a second circuit having at least one electrical contact aligned to the electrical contact of the first circuit, and a standoff structure between the first and second circuits having at least one aperture aligned to one electrical contact of the first and second circuits, the aperture being of a non-circular shape.

Abstract: A printing system includes a print head to deliver ink to an image receptor and at least one ink reservoir to deliver ink to the print head. Driving circuitry provides signals to the print head to control delivery of the ink and a flexible circuit interposed between the print head and the ink reservoirs connects the driving circuitry to the print head. The flexible circuit may include a heater to provide heat to the ink reservoirs. Alternatively, the flexible circuit may be replaced with a rigid substrate having a heater within its layers.

Abstract: A printing system includes a print head to deliver ink to an image receptor and at least one ink reservoir to deliver ink to the print head. Driving circuitry provides signals to the print head to control delivery of the ink and a flexible circuit interposed between the print head and the ink reservoirs connects the driving circuitry to the print head. The flexible circuit may include a heater to provide heat to the ink reservoirs. Alternatively, the flexible circuit may be replaced with a rigid substrate having a heater within its layers.

Abstract: A print head has an array of jets formed in a jet stack to deliver ink to an image receptor and at least one ink reservoir to deliver ink to the jet stack. Control circuitry is arranged on the jet stack with an actuator array arranged on the control circuitry to cause the reservoir to deliver ink in response to signals from the control circuitry. A ground plane is arranged between the actuators and the ink reservoir. A print head has an array of jets formed into a jet stack to deliver ink to a printing medium and an actuator array formed on the jet stack, each actuator separated from other actuators by gaps. A spacer is arranged on the jet stack so as to fill the gaps between the actuators.

Abstract: A print head has an array of jets to dispense ink onto a printing surface, an array of actuators to cause the jets to dispense ink and an ink manifold to route ink to the array of jets, the ink manifold being formed of at least one polymer layers. A print manifold has an array of jets formed on a metal plate, at least one polymer layer mounted on the metal plate, the polymer layer including an array of manifolds corresponding to the array of jets and an electronic circuit board mounted on the polymer layer, the electronic circuit board having an array of holes corresponding to the array of manifolds. A print system includes at least one ink reservoir at least one umbilical to transport ink out of the ink reservoir and a print head as described above.

Abstract: Acoustic filters for use in an ink jet print head are disclosed. The ink jet print head defines a plurality of operating plates held together in a superimposed relationship forming an ink jet print head defining a plurality of ink manifolds, ink inlets, ink drop-forming orifices and a plurality of acoustic filters. The acoustic filters are a plurality of compliant areas connected by an acoustic filter constriction aperture and a plurality of separate compliant areas all connected to ink manifolds for suppressing unwanted frequencies during print modes.