Abstract: A printing apparatus conveys preceding and following sheets to form an overlapping portion where a trailing edge of the preceding sheet and a leading edge of the following sheet overlap each other at a printing position facing an ejection port surface of a printing unit, and prints the preceding and following sheets by ejecting ink from ejection ports based on a relative movement between the printing unit and the preceding and following sheets. The printing unit delays ink ejection timing for printing the overlapping portion of a sheet located closer to the ejection port surface at a position facing the ejection ports from ink ejection timing for printing a non-overlapping portion where the preceding sheet and the following sheet do not overlap each other in one of the preceding sheet and the following sheet.
Abstract: A liquid ejecting apparatus includes: a liquid supply path coupled to a liquid ejection portion to supply a liquid thereto; a liquid discharge path coupled to the liquid ejection portion to discharge the liquid to be supplied thereto; an upstream damper portion which is provided as a part of the liquid supply path and which includes an upstream damper chamber having a wall partially composed of a flexible membrane with a rubber elasticity; and a downstream damper portion which is provided as at least one of a part of the liquid supply path between the upstream damper portion and the liquid ejection portion and a part of the liquid discharge path and which has a flexible wall composed of a resin film.
Abstract: A recording medium holder includes a base, a platen configured to hold a printing target portion of a recording medium, and a plurality of platen supports to support the platen. The plurality of platen supports is disposed side by side on the base. The plurality of platen supports includes a first platen support at one end and a second platen support respectively at one end and the other end of the plurality of platen supports. The first platen support the second platen support are separable from the platen.
Abstract: A liquid absorbing device includes: a liquid absorber containing fibers and an anionic absorbent resin designed to absorb a liquid; a container having a feed port to which the liquid is supplied, a storage section that is connected with the feed port and that stores the liquid absorber, an inflow section configured such that part of the liquid flows into when the liquid is supplied to the storage section, and a communicating portion that connects the storage section with the inflow section; and a detection unit that is provided in the inflow section and that is configured to detect a surface of the liquid in the inflow section.
Abstract: A printing apparatus includes a rotary drum that is provided with a cylindrical body, a rotary shaft, and arm portions, an ejecting unit, a first cooling fan that uses a section formed in the circumferential direction between the arm portions as a passageway of air and that supplies the air, and a first air guide member that is retrofitted to the passageway of the air. The first air guide member is provided with a number a of first guides, a being an integer of 2 or more. The number a of the first guides are configured to guide the air from the first cooling fan to regions that are different positions of the inner surface of the cylindrical body and that are obtained by dividing up the inner surface of the cylindrical body by the number a in the direction along the rotary shaft.
Abstract: Provided is a droplet discharging device that can efficiently couple a droplet discharging head and a head driving circuit by a cable. A droplet discharging device includes a droplet discharging head, a head driving circuit configured to drive the droplet discharging head, a carriage configured to move while supporting the droplet discharging head and the head driving circuit, and a cable configured to electrically couple a head connector of the droplet discharging head and a circuit connector of the head driving circuit, the cable being detachably coupled to the head connector and to the circuit connector. The droplet discharging head and the head driving circuit are disposed such that the head connector and the head driving circuit do not overlap in a direction of pull-out of the cable from the head connector and the circuit connector and the droplet discharging head do not overlap in a direction of pull-out of the cable from the circuit connector.
Abstract: Provided is a printer including an ink tank, a print head, a light source that irradiates the ink tank with light, a photoelectric conversion device that detects light incident from the ink tank, and a processing unit. The processing unit detects an amount of ink in the ink tank based on a lowest position among the positions where a light amount detected by the photoelectric conversion device satisfies a given condition.
Abstract: Provided is a printer including an ink tank, a print head performing printing by using ink in the ink tank, a light source irradiating the ink tank with light, a photoelectric conversion device detecting light incident from the ink tank in a period during which the light source emits light, and a processing unit determining ink characteristics based on characteristics of a light amount detected by the photoelectric conversion device.
Abstract: Provided is a printer including an ink tank provided with, at a side surface, an optical separator for separating light in a vertical direction, a print head performing printing by using ink in the ink tank, a photoelectric conversion device detecting light incident from the ink tank after passing through the optical separator, and a processing unit detecting an amount of ink in the ink tank based on an output of the photoelectric conversion device.
Abstract: A printing system includes: a media feed chassis including a plurality of fixed roller shafts, each roller shaft having a rotatable roller for guiding print media through a media feed path; and one or more inkjet modules mounted on the media feed chassis for printing on the print media. Each inkjet module has a support chassis seated on a set of roller shafts, and the support chassis includes a base having a set of notches defined therein, the roller shafts being received within the notches.
Abstract: A bonding structure includes a first part including a first bonding surface and a second part including a second bonding surface to be bonded to the first bonding surface of the first part with a first adhesive and a second adhesive different from the first adhesive. At least one of the first bonding surface and the second bonding surface includes a first region on which the first adhesive is applied, a second region on which the second adhesive is applied, and a third region disposed between the first region and the second region, the third region having a water repellency higher than a water repellency of each of the first region and the second region.
Abstract: A printing apparatus measures a temperature of an electrothermal transducer by a corresponding temperature detection element, detects, based on the measured temperature, a peak voltage which indicates a point of change, from a state where ink is discharged normally from a printhead to a state where the ink is not discharged from the printhead, and compares the peak voltage with a threshold value. The measurement, detection, and comparison are repeated until the peal voltage becomes equal to or more than the threshold value. Energy supplied to the electrothermal transducer at a time in which the peak voltage is determined to be equal to or more than the threshold is determined to be minimum discharge energy.
Abstract: A method for ink-jet recording comprising recording an image on a recording medium using an ink-jet recording apparatus including a recording head equipped with a heat generation unit which generates thermal energy for discharging aqueous ink by discharging the aqueous ink from the recording head based on image data by action of the thermal energy, wherein the aqueous ink is discharged once by applying a single pulse waveform voltage to the heat generation unit in the recording, and wherein the aqueous ink includes silver particles.
Abstract: The ink jet recording method is an ink jet recording method of recording an image on a recording medium using an ink jet recording apparatus including a recording head and a recovery mechanism for recovering an ejection state of pigment ink from ejection orifices. The recording head includes a first flow path and a second flow path allowing an ejection orifice and a recording element to communicate with each other and through which ink flows between the ejection orifice and the recording element. The ink jet recording method includes (i) a first cleaning of allowing the ink in the first flow path to flow to the second flow path while performing wiping and suction with a suction wiper; or (ii) a second cleaning of allowing the ink in the first flow path to flow to the second flow path after performing wiping and suction with a suction wiper.
Abstract: In one or more embodiments, the present invention provides a method of applying or printing structural colors to a substrate that involves pre-treatment of the substrate surface to prevent absorption of the fluid containing the particles. This allows the fluid to maintain their sessile drop shapes and as the water evaporates, the colloidal particles spontaneously assemble within the confined geometry into semi-ordered structures that interact with light to produce structural color. While the pre-treatment may be done in a variety of ways, application of a, hydrophobic and/or oleophobic coating, like 1H-IH,2H-perfluoro-1-dodecene (C10F21—CH?CH2) (perfluoro) monomer, fluoroalkyls, fluorohydroalkyls, cyclo-fluoroalkyls, fluorobenzen, by plasma-enhanced chemical vapor deposition (cold plasma treatment) has been found to be effective, particularly for printing applications. These treated substrates allow production of a wide range of structural colors using binary systems of nanoparticles.
December 3, 2019
Date of Patent:
May 11, 2021
THE UNIVERSITY OF AKRON
Ali Dhinojwala, Mario Alberto Echeverri, Anvay Arun Patil
Abstract: A method for printing on a multi-dimensional object may include creating a customized object holder for the multi-dimensional object by heating a thermoforming sheet to a thermoforming temperature, molding the heated thermoforming sheet around at least a portion of a multi-dimensional object to form a holding portion for the multi-dimensional object, creating one or more printable areas on the molded thermoforming sheet, and applying one or more datum points on the molded thermoformed sheet. The one or more datum points may be configured to provide information relating to position of the one or more printable areas to a print system.
May 7, 2019
Date of Patent:
April 27, 2021
D. Clay Johnson, Mark A. Atwood, Timothy P. Foley, Eliud Robles Flores
Abstract: Printheads for a jetting apparatus. In one embodiment, a printhead comprises a plurality of jetting channels having nozzles on a bottom surface configured to jet a print fluid, and longitudinal sides disposed between the bottom surface and a top surface. The printhead also comprises Input/Output (I/O) ports disposed on one or more of the longitudinal sides, and configured to convey the print fluid into or out of the printhead. The printhead further includes one or more chain manifolds disposed between the I/O ports.
Abstract: An absorbent composite of the present disclosure includes an aggregate of small pieces having a shape with a longitudinal direction, including fibers and a water absorbent resin, in which when a total length in the longitudinal direction of the small piece is L1 [mm] and a distance between end points connecting one end and the other end of the small piece is L2 [mm], an average value of L2/L1 is greater than 0 and 0.950 or less.
Abstract: A recording apparatus includes a main unit that accommodates a recording head and a carriage that is movable in a transport direction of the medium. At least one liquid container mounted above the recording head in the carriage contains the liquid to be supplied to the recording head and has an inlet through which the liquid is to be refilled from an ink refill bottle. The plug member plugs up the inlet. An illumination member irradiates the liquid container from the liquid container. A detector detects detaching of the plug member from the inlet. A controller controls the illumination member, based on a detection result of the detector. The illumination member irradiates the liquid container in response to detection of the detaching of the plug member from the inlet with the detector.
Abstract: An inkjet printer collects ink mist, and eliminates the necessity of frequent filter cleaning and replacement. Vents are on an upstream side in a conveying direction of a printing medium of the print heads of a printing part, blowout air volume of the respective vents can be adjusted, collection ports are on a downstream side in the conveying direction of the printing medium of the respective print heads, suction air volume of the collection ports can be adjusted, and an ink mist collecting parts are each provided which liquefies and collects ink mist contained in air sucked from any one of the collection ports while the air passes through filters. The blowout air volumes of the respective print heads and the suction air volumes are set to air volumes according to amounts of generated ink mist, and ink mist is collected according to differences in amounts of generated ink mist.