Abstract: The present disclosure relates to a fast drying solvent-based inkjet ink composition for thermal inkjet printing, the ink composition comprising at least 40 weight percent base solvent, a solvent-compatible colorant, not more than 25 weight percent propellant, a decap controlling additive, and not more than 5 weight percent water. The present disclosure also relates to the method and system for inkjet printing with the above-described ink.

Abstract: A printhead is provided having a plurality of nozzles defined on a substrate. Each nozzle is configured to hold fluid and has an ejection port and an actuator for moving the nozzle relative to the substrate to eject the held fluid through the ejection port.

Abstract: This invention is directed to allow efficiently transferring data to each print element (heater) and efficiently laying out circuits in an element substrate including plural heater arrays in which different numbers of heaters are arranged. This substrate includes: a first array having a relatively large number of heaters; and a second array which is equal in length to the first array and has a relatively small number of heaters. These arrays are juxtaposed. The substrate further includes plural shift registers equal in number to the heater arrays of the substrate. The shift registers include a shift register which holds some data for driving the heaters of the first heater array, and data for driving the heaters of the second heater array. The shift registers further include a shift register which holds data other than some data for driving the heaters of the first heater array.

Abstract: Methods for fabricating micro-fluid ejection heads and micro-fluid ejection heads are provided herein, such as those that use non-conventional substrates. One such micro-fluid ejection head includes a substrate having first and second glass layers disposed adjacent to a surface thereof and a plurality of fluid ejection actuators disposed adjacent to the second glass layer. The first glass layer is thicker than the second glass layer and the second glass layer has a surface roughness of no greater than about 75 ? Ra.

Abstract: There are provided a printing head substrate, an ink jet printing head and an ink jet printing apparatus, which accurately detect a temperature state in the central part of a heater array on the substrate and restrict an area of the substrate to a minimum. A printing head substrate has a plurality of heating elements, a plurality of ink supply openings, a logic circuit for driving the heating elements; a substrate temperature detecting element for detecting a temperature of the printing head substrate, and input and output pads for carrying out reception and supply of a signal between a printing apparatus, and the logic circuit and the substrate temperature detecting element, wherein a beam integral with the substrate is provided between the plurality of ink supply openings, and the substrate temperature detecting element is arranged on the beam.

Abstract: A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current, a shift register comprising a plurality of successive registers, the shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal, a transfer register for latching data in one of the registers of the shift register; a control gate for outputting a control pulse in response to data in the transfer register, and a drive transistor for providing an energy pulse to the resistive element of the actuator upon receipt of the control pulse. The nozzle assembly covers an area of less than 20,000 square microns.

Abstract: A liquid discharging head includes a head chip including a plurality of energy generating elements configured to discharge liquid and liquid chambers provided around the corresponding energy generating elements, and a common passage member configured to define a common passage communicating with all the liquid chambers in the head chip. the liquid is discharged from the liquid chambers by driving the energy generating elements so as to apply a discharging force to the liquid. The common passage member includes an inlet through which the liquid is supplied to the common passage, and an outlet through which the liquid is ejected from the common passage. The common passage includes a ceiling surface having a groove extending from the inlet toward the outlet.

Abstract: An ejection nozzle arrangement is provided having a fluid chamber having a wall and a fluid port, an arm extending through an aperture in the wall, a dynamic structure cantilevered from the wall adjacent the aperture, a static structure cantilevered from the wall adjacent the dynamic structure. The arm is connected to the dynamic and static structures at a point distal from the aperture such that thermal expansion of the dynamic structure moves the arm upwards in the chamber to eject fluid from the chamber through the port.

Abstract: A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current, a shift register comprising a plurality of successive registers, the shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal, a transfer register for latching data in one of the registers of the shift register; a control gate for outputting a control pulse in response to data in the transfer register, and a drive transistor for providing an energy pulse to the resistive element of the actuator upon receipt of the control pulse. The nozzle is spaced from other nozzles ejecting ink of a same color by less than 32 microns in a direction transverse to the direction of movement of a print media upon which ink is ejected.

Abstract: A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current. A shift register comprising a plurality of successive registers is also included. The shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal. A transfer register latches data in one of the registers of the shift register. A control gate outputs a control pulse in response to data in the transfer register. A drive transistor provides an energy pulse to the resistive element of the actuator upon receipt of the control pulse.

Abstract: A manufacturing method for a substrate for an ink jet head, including formation of an ink supply port in a silicon substrate, the method includes a step of forming, on one side of the substrate, an etching mask layer having an opening at a position corresponding ink supply port; a step of forming unpenetrated holes through the opening of the etching mask layer in at least two rows in a longitudinal direction of the opening; and a step of forming the ink supply port by crystal anisotropic etching of the substrate in the opening.

Abstract: A refill unit for a fluid container is providing. The refill unit has a housing defining a fluid path in fluid communication with an outlet and configured to be operatively engaged with the fluid container, a fluid reservoir having an ejection port arranged in fluid communication with the fluid path inside the housing, and an ejector assembly configured to incrementally eject between 6 ml and 50 ml per increment of fluid from the reservoir when the assembly is actuated by operative engagement of the fluid container with the housing.

Abstract: A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current, a shift register comprising a plurality of successive registers, the shift register receives input data in a first register, and shifts the input data to successive registers upon receipt of a shift signal, a transfer register for latching data in one of the registers of the shift register; a control gate for outputting a control pulse in response to data in the transfer register, and a drive transistor for providing an energy pulse to the resistive element of the actuator upon receipt of the control pulse. Each energy pulse has a pulse voltage of less than 10 Volt.

Abstract: A dispenser unit for dispensing ink to refill a supply of printing fluid in a printing unit includes a body assembly; a plurality of ink outlets provided on a bottom side of the body assembly, the plurality of ink outlets each for engaging with respective ink inlets of the printing unit; a compressible ink storage volume provided within the body assembly, the compressible ink storage volume having a sealed end and an outlet end connected to no more than one of the plurality of ink outlets; a plunger provided within the housing and abutting the sealed end of the compressible ink storage volume; and a compressing actuator for compressing the plunger against the sealed end of the compressible ink storage volume, thereby facilitating a dispensing of ink from within the compressible ink storage volume into the printing unit via the ink outlet to which the outlet end of the compressible ink storage volume is connected.

Abstract: There is provided a liquid ejecting apparatus including: a liquid ejecting head that has a conductive nozzle plate and discharges liquid from openings of the nozzle plate to recording material; an absorbing member that is arranged opposite the nozzle plate in a direction in which the liquid is discharged and has electrical conductivity to absorb liquid not attached to the recording material; an electrode member that is adjacent to a rear face of a face facing the nozzle plate in the absorbing member; and a potential difference generating means that generates a potential difference between the nozzle plate and the electrode member to electrically attract the liquid toward the electrode member.

Abstract: A liquid droplet ejecting apparatus which ejects liquid to a recording medium, comprises a liquid droplet ejecting head including a nozzle surface in which a plurality of nozzles are formed, the nozzles being configured to eject liquid droplets; a dielectric elastomer disposed around the nozzle surface; a pair of electrodes configured to sandwich the dielectric elastomer; and a nozzle protector formed integrally with the dielectric elastomer on a recording medium side of the dielectric elastomer.

Abstract: A method of using a container for a phase change ink cartridge includes inserting the cartridge in the container, transporting the container with the inserted cartridge to an ink jet printer, taking the cartridge out of the container and operatively connecting the cartridge to the printer, and operatively connecting the container to the printer to enable collecting of waste ink produced by the printer in the container. A container for a phase change ink cartridge is also provided for use in a phase change ink jet printer. The container has an inner shape and an outer shape. The inner shape constitutes a fitting enclosure for the cartridge and the outer shape provides a profile for operatively engaging a matching profile of the ink jet printer hardware.

Abstract: A method of treating a printer component, a printhead, and a printer are provided. The method includes providing an electrode proximate to the printer component to be treated; introducing a plasma treatment gas in an area proximate to the printer component to be treated; and treating the printer component by applying power to the electrode thereby producing a micro-scale plasma at near atmospheric pressure, the micro-scale plasma acting on the printer component.

Abstract: A liquid droplet transporting apparatus includes a first electrode which is arranged on a surface of a substrate, a second electrode which is arranged apart from the first electrode on the surface of the substrate, an insulating layer which is arranged to cover each of the first electrode and the second electrode, and a liquid repellent property on a surface of the insulating layer changes according to an electric potential difference between the electrode and an electroconductive liquid droplet on the surface, and a third electrode which cooperates with the second electrode to detect the liquid droplet on the second electrode. Consequently, it is possible to transport a liquid droplet between two areas, and also to detect as to in which area out of the two areas, the liquid droplet exists.

Abstract: A nozzle assembly for an inkjet printhead includes a substrate assembly defining an ink inlet; a nozzle defining an opening through which ink is ejected, the nozzle including a crown portion and a skirt portion depending from the crown portion; wall portion extending from the substrate towards the nozzle and bounding the ink inlet; thermal bend actuator assembly mounted to the substrate assembly; and a lever arm extending from the thermal bend actuator to the nozzle, the lever arm supporting the nozzle above the wall portion. The thermal bend actuator assembly is adapted to actuate the lever arm such that the crown portion of the nozzle is displaced with respect to the wall portion, whereby ink contained in the nozzle is ejected out through the opening.