Abstract: A liquid discharge head includes a nozzle forming member having a nozzle configured to discharge liquid; an opening and closing member configured to open and close the nozzle; a piezoelectric body configured to expand and contract in an axial direction in response to a drive voltage so as to actuate the opening and closing member such that the nozzle is opened and closed; a first housing member having a cylindrical shape and configured to house the piezoelectric body; and a ground member configured to contact an inner side of the first housing member.

Abstract: A recording apparatus includes a medium supporting part configured to support a medium, a recording unit configured to perform recording on the medium supported by the medium supporting part, and a housing covering the medium supporting part and the recording unit. An opening for communication between inside and outside of the housing is provided in a first surface and a second surface intersecting the first surface of the housing. The housing includes a housing cover being openable and closable and configured to cover the opening. The housing cover includes a first cover configured to cover the opening in the first surface, and a second cover configured to cover the opening in the second surface. The first cover is coupled to the housing by a first coupling part. The second cover is coupled to the first cover through a second coupling part.

Abstract: Printheads that jet print fluids. In an embodiment, a flow-through printhead comprises a plurality of jetting channels arranged in a first row and a second row generally in parallel along a length of the printhead, where each of the jetting channels includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid. The flow-through printhead further comprises a first manifold fluidly coupled to the jetting channels in the first row, and a second manifold fluidly coupled to the jetting channels in the first row. The first manifold and the second manifold are disposed on opposite sides of the first row with the second manifold disposed in an intermediate region between the first row and the second row.

Abstract: A dielectric heating device includes: an electrode unit including a first electrode and a second electrode that face a to-be-heated object, and configured to heat the to-be-heated object; a voltage application unit configured to apply an alternating-current voltage to the first electrode and the second electrode; a current value detection unit configured to detect a current value of an alternating current that flows through the electrode unit; a phase difference detection unit configured to detect a phase difference between the alternating-current voltage and the alternating current; an impedance detection unit configured to detect an impedance of the electrode unit based on the current value and the phase difference; and a control unit configured to control output of alternating-current power output to the electrode unit by controlling the voltage application unit based on the impedance.

Abstract: A liquid discharging apparatus, having a housing, a first tray for storing a printable medium, a second tray for storing a printable medium, a liquid discharging head, and a first waste liquid storage, is provided. The second tray is located at a position lower than the first tray. The liquid discharging head has nozzles for discharging liquid. The first waste liquid storage is demountably mounted in the housing. The first waste liquid storage is configured to store waste liquid being the liquid discharged from the nozzles of the liquid discharging head. The first waste liquid storage is located between the first tray and the second tray.

Abstract: An image forming method according to an aspect of the present invention includes supplying a water based ink to an inkjet head at a flow rate of 5 mL/min or more and 120 mL/min or less, and ejecting the supplied water based ink from a nozzle of the inkjet head. The water based ink contains a colorant and a water-insoluble resin having a glass transition temperature of 40° C. or higher and 100° C. or lower.

Abstract: An inkjet recording apparatus of a scanning type includes: a treatment liquid head that ejects a treatment liquid having a flocculation effect on a coloring material ink and a coloring material; and an ink head that ejects the coloring material ink in a single carriage, wherein the ink head does not pass through a treatment liquid discharging part after discharging the treatment liquid in a same scan.

Abstract: A printing system performs first double-side printing when double-side printing is designated to a first print medium sides of which are distinguished from each other, and second double-side printing when the double-side printing is designated to a second print medium sides of which are not distinguished from each other, and a print page printed on a first surface set face-down when being fed out of a plurality of print pages included in print data is different between the first double-side printing and the second double-side printing.

Abstract: In one example in accordance with the present disclosure, a printhead cleaning device is described. The printhead cleaning device includes a first spout to generate a first cleaning agent fountain to bathe a printhead die as it traverses over the printhead cleaning device. A pump passes the cleaning agent through the first spout to generate the first cleaning agent fountain. The printhead cleaning device also includes a structure to support the first spout.

Abstract: An object is to provide a liquid storage container capable of reducing the possibility of dispersion of liquid in a case where a lid member is detached. The lid member has a covering portion capable of covering the opening and a knob portion protruding from the covering portion in a direction in which the knob portion becomes more distant from the opening. The covering portion can deform into a convex shape in a case where the knob portion is pushed toward the inside from the outside of the opening in a state where the lid member is attached to the opening and can deform from the convex shape into a concave shape in a case where the knob portion is pulled up toward the outside from the inside of the opening in a state where the covering portion has deformed into the convex shape.

Abstract: Examples include a machine assembly for conveying sheet-format substrates, including a first belt conveyor and a second belt conveyor. These belt conveyors each have a continuously circulating transport belt and are arranged one after another in the transport direction of the substrates conveyed on the respective transport belt. The substrate to be transferred from the first belt conveyor to the second belt conveyor is lifted off the transport belt of the first belt conveyor by means of an air current generated by a lifting nozzle and an opposing air current generated by a counter-nozzle. The substrate to be transferred remains fixed until its transfer by the vacuum pressure generated by a suction chamber of the first belt conveyor. This suction chamber fixing the substrate is arranged close to the lifting region. Examples also relate to a printing machine comprising this machine assembly.

Abstract: A liquid discharge head includes i) a recording-element substrate configured to discharge a liquid, ii) a cuboid-like liquid tank configured to support the recording-element substrate and to store the liquid to be discharged from the recording-element substrate, and iii) an absorbent accommodated in a compressed state in the liquid tank and configured to absorb and hold the liquid. In the liquid discharge head, multiple projections are formed on a bottom of the liquid tank. In addition, as viewed in plan in a direction orthogonal to the bottom, the projections are disposed so as to surround or straddle an injection position at which the liquid is injected into the absorbent using an injection needle.

Abstract: A medium drying device that dries a liquid applied to a medium includes a front surface portion in contact with the medium at a first surface, a heat source unit provided on a second face side, a rear surface portion provided at a position opposing the second face with the heat source unit therebetween, a side surface portion disposed at a position opposing the heat source unit in a direction intersecting both the front surface portion and the rear surface portion, and a heat insulating material. The heat source unit opposes the second face without the heat insulating material therebetween, and the heat insulating material is disposed at a position opposing the rear surface portion and the heat source unit.

Abstract: A liquid ejecting apparatus includes a driven element that is driven by a drive signal; an ejection head that ejects a liquid when the driven element is driven; a drive circuit that outputs the drive signal, the drive circuit including an amplifier circuit that includes a first transistor and amplifies, based on an amplification voltage and through an operation of the first transistor, a base drive signal based on which the drive signal is generated; and a leakage current detection circuit that detects a leakage current in the drive circuit. The leakage current detection circuit is electrically connected to the first transistor included in the amplifier circuit to which the amplification voltage is supplied.

Abstract: An ink printing process employs per-nozzle droplet volume measurement and processing software that plans droplet combinations to reach specific aggregate ink fills per target region, guaranteeing compliance with minimum and maximum ink fills set by specification. In various embodiments, different droplet combinations are produced through different print head/substrate scan offsets, offsets between print heads, the use of different nozzle drive waveforms, and/or other techniques. Optionally, patterns of fill variation can be introduced so as to mitigate observable line effects in a finished display device. The disclosed techniques have many other possible applications.

Abstract: A roll sheet with a continuous sheet wound in a roll form is rotated in a forward direction to supply the sheet to a printing unit. A sensor whose output is changed in accordance with a distance between the sensor and the sheet is used. A rotation direction of the roll sheet is switched from an opposite direction to the forward direction on the basis of the output of the sensor during rotation of the roll sheet in the opposite direction.

Abstract: Fluidic usage data over time is received from a printing device. A profile governing servicing maintenance of fluidic printhead nozzles of the printing device is determined based on the received fluidic usage data over time. The profile is transmitted to the printing device. The printing device performs spit-wipe-prime operations on the fluidic printhead nozzles according to the profile.

Abstract: Provided are a head maintenance system, a printing system, and a head maintenance method with which preferable washing of a nozzle surface can be realized and a damage to the nozzle surface can be suppressed. The head maintenance system includes: a wiping device (3) including a wiping sheet (10) for wiping a nozzle surface (52) of an ink jet head (50); a relative movement device (2, 3) that relatively moves the ink jet head and the wiping sheet; and a pressing device (18, 56) that presses the wiping sheet against the nozzle surface, in which the wiping device includes the wiping sheet having a value of linearity of compression in a range of 0.3 or more and less than 0.6, the linearity of compression being measured using a compression tester.

Abstract: There is provided a printing apparatus including: a line head including a plurality of nozzles and a discharging surface in which the plurality of nozzles is opened, the line head being configured to discharge a photo-curing ink from the plurality of nozzles to a printing medium; a light irradiator configured to irradiate the photo-curing ink on the printing medium with a light; an optical sensor configured to measure a distance between the printing medium and the discharging surface, and a controller configured to cause the light irradiator to execute an irradiating operation of irradiating the photo-curing ink on the printing medium with the light at a first timing, and cause the optical sensor to execute a distance measuring operation of measuring the distance between the printing medium and the discharging surface at a second timing different from the first timing.

Abstract: A printer includes a curved path through which a medium is transported toward a line head, a transport roller pair provided in the curved path, pinching the medium by a driving roller and a driven roller at a pinching position, and transporting the medium, a gate portion having a contact surface configured to switch between a contact position located upstream of the pinching position in a transport direction in the curved path and a retreat position at which the contact surface does not contact with the medium, and a guide portion guiding a tip of the transported medium to the contact surface located at the contact position.