Abstract: A liquid discharge apparatus includes an actuator and a drive circuit. The actuator is configured to cause liquid to be discharged from a nozzle corresponding thereto. The drive circuit is configured to apply a wake waveform to the actuator such that a voltage of the actuator increases to a first voltage and then is maintained at the first voltage without discharge of liquid from the nozzle. A drive waveform is then applied to the actuator for each of one or more discharge cycles such that liquid is discharged from the nozzle for each of the discharge cycles. A time from when the wave waveform starts to be applied to the actuator to when the drive waveform starts to be applied to the actuator is equal to or longer than a period of time of two discharge cycles.

Abstract: A head module includes first individual channels each including a first nozzle orifice; a first supply manifold being in fluid communication with the first individual channels and configured to allow liquid to flow into the first individual channels therefrom; a first return manifold being in fluid communication with the first individual channels and configured to allow liquid not ejected from the first nozzle orifices to flow thereinto; second individual channels each including a second nozzle orifice; a second supply manifold being in fluid communication with the second individual channels and configured to allow liquid to flow into the second individual channels therefrom; a second return manifold being in fluid communication with the second individual channels and configured to allow liquid not ejected from the second nozzle orifices to flow thereinto; and a first bypass path providing fluid communication between the first supply manifold and the second return manifold.

Abstract: A waste liquid collector includes a waste liquid tank, a rotatable member, and a cover. The waste liquid tank is removably inserted in the waste liquid collector, the waste liquid tank configured to collect waste liquid. The rotatable member is configured to rotate with removal or insertion of the waste liquid tank. The cover is configured to contact a waste liquid inlet portion of the waste liquid tank to cover a waste liquid inlet portion, the cover being slidable with respect to the rotatable member.

Abstract: A head module includes a head and a cover. The head includes a nozzle plate and a channel substrate. The nozzle plate includes a nozzle configured to discharge liquid from a discharge surface of the nozzle plate. The channel substrate includes an individual channel communicated with the nozzle. The channel substrate has a surface facing the nozzle plate. The cover covers at least one side of the discharge surface of the nozzle plate of the head. An outer shape of the nozzle plate is smaller than an outer shape of the channel substrate. The cover has a bonded surface bonded to the surface of the channel substrate in an outer area of the nozzle plate with an adhesive. The bonded surface of the cover is closer to the channel substrate than the discharge surface of the nozzle plate is.

Abstract: A liquid ejecting head includes a nozzle plate provided with nozzles configured to eject a liquid in a first direction; a case provided in a second direction that is opposite to the first direction with respect to the nozzle plate, and having a flow path pipe that defines a first flow path through which the liquid flows and which protrudes in the second direction; a circuit substrate provided in the second direction with respect to the case and having a first through-hole through which the flow path pipe penetrates; a first seal member provided in the second direction with respect to the circuit substrate; a holder provided in the second direction with respect to the first seal member and having therein a second flow path communicating with the first flow path; a screw fixing the holder to the case; and an adhesive fixing the holder to the case.

Abstract: The present invention relates to [1] a process for producing a printed material, including step 1 of subjecting an image-bearing surface of a printed recording medium 1? on which characters or images are formed by analog printing to discharge treatment under specific conditions to obtain a printed recording medium 1, and step 2 of further forming characters or images on the image-bearing surface of the printed recording medium 1 by ink-jet printing using a water-based ink to obtain the printed material, [2] an ink-jet printing method including the step of ejecting a water-based ink onto a printed recording medium 1 by an ink-jetting method to form characters or images thereon, in which the printed recording medium 1 has an image-bearing surface on which characters or images are formed by analog printing, and the image-bearing surface is subjected to discharge treatment under the specific conditions, [3] a recording medium for ink-jet printing, including an image-bearing surface on which characters or images a

Abstract: A liquid ejection head includes a print element substrate including multiple ejection openings, pressure chambers, a common flow path, and pumps, the pumps being configured to circulate liquid between the common flow path and the pressure chamber; and a flow path member laminated to the print element substrate. The flow path member includes a supply flow path and a collection flow path, the supply flow path being configured to supply liquid to the print element substrate, and the collection flow path being configured to collect liquid that is not ejected. The supply flow path and the collection flow path have liquid connection with the same common flow path. A circulating pump generates a flow of liquid flowing in an order of the supply flow path, the common flow path, and the collection flow path, the circulating pump being provided at a position different from the print element substrate.

Abstract: The present disclosure is drawn to an inkjet printing system including an ink composition and a microfluidic ejection assembly. The ink composition can include carbon black pigment, from 50 wt % to 80 wt % water, from 10 wt % to 40 wt % of an organic solvent system, and from 0.5 wt % to 6 wt % polyurethane. The microfluidic ejection assembly can include a drop generator for externally ejecting the ink composition, and a fluid pump for internally inducing microfluidic recirculation flow of the ink composition into the drop generator.

Abstract: A liquid discharge apparatus includes an actuator and a drive circuit. The actuator is configured to cause liquid to be discharged from a nozzle. The drive circuit is configured to apply a waveform to the actuator during a discharge cycle in accordance with a discharge trigger and to cause a voltage of the actuator to be maintained at a value from an end of the discharge cycle until reception of a subsequent discharge trigger.

Abstract: The invention comprises a mechanical handwriting system linked to a user input system to generate a plotted document, such as a greeting card, note card or document, using a conveyor belt unit to support and move the document, a plotter, and a series of rollers to position and constrain movement of the greeting card, which is optionally and preferably linked to a paper feeder system in an assembly line format, where the rollers are optionally and preferably adjustable in position to accommodate varying paper sizes and to allow movement of the document during a plotting period to avoid positional overlap constraints of the rollers and a plotter head of the plotter in a process of plotting the document/card in sections.

Abstract: There is provided a thermal transfer sheet capable of being identified by a thermal transfer printing apparatus, as well as being capable of preventing color property changes in high-resolution printing and reducing production cost. The thermal transfer sheet 5 of an embodiment includes a dye layer 52 and a protective layer 54 on one surface of a substrate 50. The protective layer 54 contains an invisible light absorbing material and is provided with an identification mark 55 having at least one of a recessed portion and a protruding portion.

Abstract: A liquid ejection head includes a stack structure including plates stacked and bonded with an adhesive agent, individual channels formed in the stack structure, dummy channels formed in the stack structure separately from the individual channels, and a first relief groove formed in the stack structure separately from the individual channels and configured to trap therein an excessive adhesive agent. Each individual channel includes a pressure chamber to which pressure is applied for liquid ejection form a nozzle, a supply throttle channel connected to the pressure chamber, and a return throttle channel communicating with the pressure chamber. The supply throttle channel and the return throttle channel each have a smaller cross-sectional area than the pressure chamber. The dummy channels include dummy chambers arranged laterally to an array of the pressure chambers arranged in an array direction. The first relief groove is connected to the dummy channels.

Abstract: In some embodiments, a printing apparatus comprises a band capable of holding hot melt ink thereon, rollers configured and arranged to hold and transport the band with respect to a substrate, a printhead configured to thermally transfer a portion of hot melt ink from the band to the substrate to print on the substrate, an ink feed device configured to add hot melt ink to the band and to heat the hot melt ink on the band, and a rigid blade configured and arranged to cause hot melt ink to pass between a blade edge of the rigid blade and the band, wherein the rigid blade is shaped to minimize a contact area between the rigid blade and the band while controlling ink thickness of the hot melt ink on the band.

Abstract: Provided is a releasing member-integrated transfer sheet capable of improving both the conveyability on forming an image on a transfer layer and the transferability on transferring the transfer layer onto a transfer receiving article. A releasing member-integrated transfer sheet includes a releasing member including a first support and an adhesive layer provided on the first support, and a transfer sheet including a second support and a transfer layer provided on the second support, the transfer sheet being integrated with the releasing member such that the adhesive layer is opposed to the second support. The transfer layer is peelable from the second support, and the adhesive force between the second support and the adhesive layer is smaller than the adhesive force between the first support and the adhesive layer to thereby make the releasing member separable from the transfer sheet.

Abstract: A printing apparatus includes: a printer; a sheet feeder including sheet feed trays; a sheet discharger to discharge and hold sheets printed by the printer; and a controller. Upon unloading of the sheets from the sheet discharger, the controller: determines whether to perform switching of a sheet feed source from a first sheet feed tray which is a latest sheet feed source of the sheet feed trays to a second sheet feed tray which is a sheet feed tray other than the first sheet feed tray of the sheet feed trays, based on a first sheet remaining amount in the first sheet feed tray and a second sheet remaining amount in the second sheet feed tray; and, upon determining to perform the switching, controls the sheet feeder to switch the sheet feed source from the first sheet feed tray to the second sheet feed tray.

Abstract: A liquid ejecting head includes: a flow channel forming substrate that forms an individual flow channel including a nozzle and a pressure chamber, a first common liquid chamber, and a second common liquid chamber; and a pressure generating element that causes a pressure change in a liquid in the pressure chamber, in which the first common liquid chamber is coupled to the second common liquid chamber via the individual flow channel, a compliance of the first common liquid chamber is larger than a compliance of the second common liquid chamber, and in the individual flow channel, a flow channel resistance between a first coupling portion with the first common liquid chamber and the pressure chamber is smaller than a flow channel resistance between a second coupling portion with the second common liquid chamber and the pressure chamber.

Abstract: The present invention relates to [1] a process for producing a printed material, including step 1 of subjecting an image-bearing surface of a printed recording medium 1? on which characters or images are formed by analog printing to discharge treatment under specific conditions to obtain a printed recording medium 1, and step 2 of further forming characters or images on the image-bearing surface of the printed recording medium 1 by ink-jet printing using a water-based ink to obtain the printed material, [2] an ink-jet printing method including the step of ejecting a water-based ink onto a printed recording medium 1 by an ink-jetting method to form characters or images thereon, in which the printed recording medium 1 has an image-bearing surface on which characters or images are formed by analog printing, and the image-bearing surface is subjected to discharge treatment under the specific conditions, [3] a recording medium for ink-jet printing, including an image-bearing surface on which characters or images a

Abstract: A liquid discharge head includes a plurality of nozzles configured to discharge a liquid, the plurality of nozzles arrayed in a two-dimensional matrix forming a plurality of nozzle groups, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a plurality of supply ports communicating with the plurality of pressure chambers, respectively, a plurality of common-supply branch channels communicating with two or more of the plurality of pressure chambers through the plurality of supply ports, respectively, a plurality of collection ports communicating with the plurality of pressure chambers, respectively, and a plurality of common-collection branch channels communicating with two or more of the plurality of pressure chambers through the plurality of collection ports, respectively.

Abstract: The present disclosure provides an electrically conductive material, a printing ink and a method for manufacturing an electrically conductive structure. The electrically conductive material includes a plurality of electrically conductive metal nanoplates and electrically conductive metal nanoparticles filled in gaps between the plurality of the electrically conductive metal nanoplates.

Abstract: In a printing apparatus, a controller is configured to control a printing unit such that printing is started after a transport distance of the substrate reaches a pre-discharge transport distance, in which the pre-discharge transport distance is set to a value not less than a first longest distance, provided that a transport distance in a condition in which the transport distance is a longest distance among conditions 1, 2, and 3 provided below is the first longest distance. Condition 1: a transport distance until a region of the substrate that was nipped between a front driving roller and a nip roller passes through a printing head disposed most downstream in a transport path of the substrate, Condition 2: a transport distance until a transport speed of the substrate becomes constant, and Condition 3: a transport distance until tension of the substrate being transported becomes stable.