Abstract: A piezoelectric actuator includes a substrate, and a first piezoelectric device and a second piezoelectric device formed at the substrate. The first piezoelectric device includes a first lower electrode, a first piezoelectric body, and a first upper electrode. The second piezoelectric device includes a second lower electrode, a second piezoelectric body, and a second upper electrode. A side surface of the first lower electrode is not covered with the first piezoelectric body, and a side surface of the second lower electrode is not covered with the second piezoelectric body. The piezoelectric actuator further includes a common electrode formed at the substrate and coupled to the first upper electrode and the second upper electrode, and an insulating layer located between the common electrode and the first lower electrode and between the common electrode and the second lower electrode.

Abstract: In the liquid ejection apparatus, when first temperature information detected by a first ejection module includes information regarding a temperature in a first temperature range and first ejection data is a first value, a first switch circuit of the first ejection module outputs a first drive voltage signal including a second drive waveform, when second temperature information detected by a second ejection module includes the information regarding the temperature in the first temperature range and second ejection data is the first value, a second switch circuit of the second ejection module outputs a second drive voltage signal including a first drive waveform, and when the second temperature information includes information regarding a temperature in a second temperature range and the second ejection data is the first value, the second switch circuit outputs the second drive voltage signal including a second drive waveform.

Abstract: A printing device comprises a nozzle configured to eject liquid by an energy generating element, a first selector configured to select, for each particular time period, data indicating a drive waveform based on a voltage value in the particular time period, a signal generator configured to generate a time-division multiplex signal, and a separator configured to separate a drive waveform signal indicating the drive waveform from the time-division multiplex signal generated by the signal generator. The energy generating element is configured to be driven by the drive waveform separated by the separator, and the signal generator is configured to increase an assigned time period, in the particular time period, assigned per the drive waveform selected by the first selector as a number of the drive waveforms selected by the first selector decreases.

Abstract: A first drive unit configured to generate a first drive signal for driving a first liquid ejecting head unit, the first drive unit comprising: a first drive circuit that generates the first drive signal; a first thermal conductive material that is in contact with the first drive circuit; and a first water cooling mechanism that is in contact with the first thermal conductive material on an opposite side in relation to the first drive circuit and causes liquid to flow, wherein the first water cooling mechanism causes liquid sent from a second water cooling mechanism to flow, and discharges liquid to a third water cooling mechanism, the second water cooling mechanism is provided in a second drive unit configured to generate a second drive signal for driving a second liquid ejecting head unit located next to the first liquid ejecting head unit, and the third water cooling mechanism is provided in a third drive unit configured to generate a third drive signal for driving a third liquid ejecting head unit located

Abstract: A liquid ejection apparatus includes a control circuit that outputs a control signal, a first drive signal output circuit that outputs a first drive signal, and a print head that ejects a liquid, in which the print head includes a piezoelectric element that is driven by receiving the first drive signal, a pressure chamber substrate that is provided with a plurality of pressure chambers of which volumes change due to deformation, a switch circuit that switches whether or not to supply the first drive signal to the piezoelectric element, a wiring substrate that is provided with the switch circuit, and a temperature detection portion that detects temperature information of the first pressure chamber, and the temperature information detected by the temperature detection portion is input to the control circuit in a period in which a voltage value of the first drive signal is constant.

Abstract: A piezoelectric body that is driven to apply pressure to a liquid in the plurality of pressure chambers, and contains lead atoms, a first electrode that is provided on a first surface of two surfaces of the piezoelectric body, a second electrode that is provided on a second surface opposite to the first surface of the two surfaces of the piezoelectric body, a drive wiring that is electrically coupled to the first electrode and the second electrode, and applies a voltage for driving the piezoelectric body, a resistor that is formed of the same material as any of the first electrode, the second electrode, and the drive wiring to measure a temperature of the liquid in the plurality of pressure chambers, and a diffusion suppression layer that is provided between the resistor and the piezoelectric body to suppress diffusion of lead atoms contained in the piezoelectric body into the resistor.

Abstract: A liquid ejection head including an ejection port forming part, a flow path forming part including a liquid chamber, and an individual supply flow path configured to supply liquid to the liquid chamber, and a substrate including a supply flow path configured to supply liquid to the individual supply flow path and an outflow flow path configured to cause liquid to flow out of the liquid chamber, wherein a height of the individual supply flow path is larger than a height from a surface of the liquid chamber facing the ejection port to the ejection port forming member, and when viewed from the direction perpendicular to the surface of the substrate, a sidewall surface of the liquid chamber on a side with the supply flow path (1) coincides with an end surface of the ejection port, or (2) is disposed within the ejection port.

Abstract: A printing system includes a printing apparatus that performs printing on a fabric, a processing apparatus, and a control apparatus. The processing apparatus includes contact members having a plurality of protrusions that come in contact with a fabric on which printing has been performed by the printing apparatus, and vibration applying units including vibration generating sources that apply vibration to the contact members. The control apparatus controls an operation of the processing apparatus according to an operation of the printing apparatus.

Abstract: An ink set includes a water-based ink and a water-based maintenance fluid. The water-based ink includes a colorant and at least one solvent whose SP value is 27.5 (MPa)(1/2) or higher in an amount of 30% by mass or more relative to a total mass of the solvents included in the water-based ink. The water-based maintenance fluid includes at least one solvent whose SP value is 25.0 (MPa)(1/2) or higher in an amount of 70% by mass or more relative to a total mass of the solvents included in the water-based maintenance fluid. A numerical value calculated by formula (1) is 1 or higher: a?b (1). a is a mass-weighted average of SP values (MPa)(1/2) of solvents included in the water-based ink, and b is a mass-weighted average of SP values (MPa)(1/2) of solvents included in the water-based maintenance fluid.

Abstract: Embodiments of the invention add a cutting tool and a creasing wheel to a flatbed printer. This reduces workflow steps, allows cutting and creasing without having to re-register image/media, and reduces required floor space for small shops.

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: A liquid discharge head includes a piezoelectric element, a first holding substrate, a second holding substrate, and damper. The first holding substrate has a recess accommodating the piezoelectric element, a first partition having a first width in a width direction of the first partition, and first side spaces partitioned by the first partition. The second holding substrate has a second partition having a second width wider than the first width in the width direction and second side spaces partitioned by the second partition. The damper is disposed between the first holding substrate and the second holding substrate. The damper has a first surface facing the first holding substrate, a second surface opposite to the first surface, and a penetrating portion penetrating through the damper. The second surface is bonded to the second partition of the second holding substrate. The penetrating portion is disposed adjacent to the second partition.

Abstract: A processing method includes: a liquid ejecting step of ejecting liquid toward a fabric from an ejecting nozzle hole of a liquid ejecting section and causing the liquid to strike the fabric, the liquid ejecting section including at least one nozzle, the at least one nozzle including the ejecting nozzle hole and a liquid inflow port serving as an inlet to the ejecting nozzle hole; and a vibration application step of applying vibration to the fabric subjected to the liquid ejecting step, and 0.01 mm?d?0.30 mm and 5?D/d?150, where d [mm] is a diameter of the ejecting nozzle hole and D [mm] is a diameter of the liquid inflow port.

Abstract: According to one embodiment, a liquid ejection head includes a substrate with a hole, a nozzle plate with a plurality of nozzles, and an actuator on a first surface of the substrate. The actuator has a plurality of pressure chambers aligned to the plurality of nozzles. An electrode has a first portion on the first surface of the substrate and a second portion on a second surface of the substrate. The second surface is on an opposite side of the substrate from the first surface. A manifold has a first liquid hole facing the hole in the substrate and a second liquid hole facing another portion of the substrate other than the hole. A shielding member is between the substrate and the manifold and covers the second liquid hole.

Abstract: A liquid discharge head includes a piezoelectric element and a flexible circuit board to supply a driving signal and a common-electrode signal to the piezoelectric element. The piezoelectric element includes multiple drive portions arranged in a first direction; multiple non-drive portions; and multiple dummy drive portions at each portion between the multiple drive portions and the multiple non-drive portions in the first direction; a first electrode configured to supply the driving signal to the multiple drive portions; and a second electrode configured to supply the common-electrode signal to the multiple drive portions. The flexible circuit board includes a third electrode configured to supply the common-electrode signal to the multiple drive portions. Each of the multiple non-drive portions and the multiple dummy drive portions include a common-electrode joint connected to the third electrode of the flexible circuit board.

Abstract: A service tank includes a container having an internal space, the container being provided with an inlet through which ink is introduced into the internal space and a plurality of supply ports through which the ink is supplied, a divider configured to divide the internal space into a plurality of compartments, and a detector configured to detect that the liquid surface of the ink is at an upper limit or a lower limit. The divider is attached between the inlet and a supply port located closest to the inlet. The divider includes a plate that prevents flow of the ink and air between adjacent compartments, an ink opening through which the ink flows between the adjacent compartments, and an air opening through which the air flows between the adjacent compartments. The plate, the ink opening, and the air opening are located in, below, and above the proper area, respectively.

Abstract: A droplet discharge head includes a lower housing, an upper housing, a nozzle plate, a shaft-shaped member, and a driver. The lower housing includes a flow channel. The upper housing is on the lower housing and detachable from the lower housing. The nozzle plate is on a lower surface of the lower housing. The shaft-shaped member includes a valve element at a tip end of the shaft-shaped member to open and close a nozzle orifice of the droplet discharge head. The shaft-shaped member is reciprocatable in the upper housing. The driver is disposed in the upper housing and reciprocates the shaft-shaped member in an axial direction of the shaft-shaped member. The shaft-shaped member is movable in the axial direction of the shaft-shaped member such that a length of the tip end of the shaft-shaped member protruding from the lower surface of the upper housing is shortened.

Abstract: A cartridge configured to be mounted on a tape printer, the cartridge including a cartridge case in which the cartridge case includes a third case portion, a first case portion configured to accommodate a tape roll, and a second case portion and a fourth case portion that are separate from the first case portion, and a tape feed port through which a tape fed from the tape roll is fed out of the cartridge case, and a tape insertion port into which the tape pulled out from the tape roll is configured to be inserted in a first direction from one end portion in a width direction of the tape, so that a leading edge of the tape comes out of the cartridge case from the tape feed port, are provided between the second case portion and the fourth case portion.

Abstract: There is provided a liquid discharge head including: a channel member having individual channels, each of the individual channels including a nozzle and a pressure chamber communicating with the nozzle; and an actuator member arranged on a surface of the channel member and having actuators each of which overlaps with the pressure chamber of one of the individual channels in a first direction orthogonal to the surface, the actuator member including individual electrodes constructing the actuators, branched parts each connecting individual electrodes of the individual electrodes, and a trunk part connecting the branched parts and provided with a contact with respect to an electric power supply part. A cooling channel which is independent from the individual channels and in which a cooling liquid flows is formed in the liquid discharge head. The cooling channel has a first part overlapping with the trunk part in the first direction.

Abstract: A recording apparatus includes a liquid container configured to contain, outside a recording area of the recording apparatus, liquid to be supplied to a recording head configured to perform recording by discharging the liquid to a recording medium in the recording area, a maintenance unit disposed outside the recording area, including a suction unit configured to suck the liquid from the recording head, and configured to carry out maintenance of the recording head, and a liquid reservoir portion below the liquid container and the maintenance unit.