Abstract: A system for erasing an ink from a medium includes the medium having the ink printed on a surface thereof, and an erasure fluid directly or indirectly applied to the surface, wherein the medium further includes another surface opposed to the surface upon which the ink is printed. An electrochemical cell includes an anode and a cathode. The anode formed from a semi-conductive or conductive carbon-containing material is positioned adjacent to one of: the surface of the medium upon which the ink is printed, or the other surface of the medium. The cathode formed from a semi-conductive or conductive carbon-containing material is positioned adjacent to another of: the other surface of the medium, or the surface of the medium upon which the ink is printed. The system further includes a power source to apply a voltage across the medium.

Abstract: In a method for jetting a droplet of an electrically conductive fluid, a Lorentz force is generated in the electrically conductive fluid. The Lorentz force is directed into an actuation direction. The actuation direction is a direction opposite to the droplet ejection direction. A jetting device is provided for printing a droplet of an electrically conductive fluid.

Abstract: A liquid discharge apparatus includes a support portion that supports a sheet that is transported and a discharge unit that includes a carriage that is freely movable in scanning directions that intersect with a transport direction of the sheet and a liquid discharge head that is mounted on the carriage and that discharges ink to the sheet. End portions of the discharge unit in the scanning directions are provided with a plurality of ribs that are protruded along the scanning directions and that are provided so as to be juxtaposed with intervals in the transport direction. The ribs press a bend of the sheet toward the support portion as the carriage moves along the scanning directions.

Abstract: A printing apparatus includes an ink discharge head that discharges ink, a wiper that wipes the ink discharge head, a sub tank that stores the ink to be supplied to the ink discharge head, an ink circulation flow path, a circulation pump that causes the ink to circulate in the ink circulation flow path, and a first pressurizing unit that pressurizes the inside of the sub tank in the wiping operation in which the ink discharge head is wiped with the wiper to a first pressure that is higher than the pressure in the sub tank in the print operation for discharging the ink toward a print medium with the ink discharge head. The circulation pump stops the operation in the wiping operation.

Abstract: A liquid discharging apparatus having a carriage that is capable of moving in a scanning direction and that has a discharging portion capable of discharging a liquid, a scale portion for confirming a position in the scanning direction of the carriage, and a cleaning portion that moves in the scanning direction of the carriage and is capable of cleaning the scale portion by contacting the scale portion. In such an apparatus, the cleaning portion is capable of displacement at a first state where contacting the scale portion and a second state where not contacting the scale portion.

Abstract: A sheet-like member holding device includes a first holding unit disposed between a gripper receiving portion and a side wall of a gap, and configured to hold a base of a non-metal sheet. The first holding unit includes a space in which the base is inserted while the non-metal sheet extends inward in a radial direction from an outer surface side of a printing cylinder, and an abutment wall configured to restrict movement of the base to the outside in the radial direction. An end portion of the space in an axial direction of the printing cylinder is open to the outside. This makes it possible to attach and detach the non-metal sheet by a simple method without moving a gripper member or gripper pad.

Abstract: A liquid discharge apparatus including a liquid discharge head having a substrate, plural pressure chambers two-dimensionally provided on one surface of the substrate, a discharge port, a pressure generating unit to discharge liquid through the discharge port and a flow path connected to the pressure chamber which are provided correspondingly to each pressure chamber, a common liquid chamber provided on the other surface of the substrate, and plural supply paths provided between adjacent pressure chambers and connected to the common liquid chamber; a moving unit to relatively move the liquid discharge head and a recording object; and a driving unit to drive the pressure generating unit. Flow paths respectively corresponding to the pressure chambers adjacent to the supply paths are connected to the supply paths. The driving unit outputs drive signals to the pressure generating units respectively corresponding to the pressure chambers connected to the supply paths at different timings.

Abstract: A liquid ejecting head, including a flow-path unit that includes: first and second nozzle groups disposed alongside each other in a second direction orthogonal to a first direction in which nozzles are arranged; first and second common liquid chambers respectively communicating with the first and second nozzle groups, the first and second common liquid chambers being disposed alongside each other in the second direction; a liquid supply opening communicating with the first common liquid chamber and a liquid discharge opening communicating with the second common liquid chamber, on one side of the flow-path unit in the first direction; and a connecting path connecting the first and second common liquid chambers on the other side of the flow-path unit in the first direction, wherein the first common liquid chamber is disposed nearer to an outer periphery of the flow-path unit in the second direction than the second common liquid chamber.

Abstract: An electronic device includes a first substrate that has a drive region in a first surface, and a second substrate that has a second surface that is joined to the first surface by a joining resin portion composed of a photosensitive resin. In the electronic device, a space that houses the drive region is defined between the first surface and the second surface by the joining resin portion, and a joining surface of the joining resin portion joined to the first surface is smaller than a joining surface of the joining resin portion joined to the second surface.

Abstract: A method for manufacturing a liquid jetting apparatus includes: a wire formation step of forming a wire so that a part of the wire covers a piezoelectric film; and an electrode formation step of forming a second electrode, after the wire formation step, on a surface of the piezoelectric film on a side far from a vibration film so as to be in electrical conduction with the wire. The liquid jetting apparatus includes: a flow passage formation portion; and a piezoelectric actuator having the vibration film provided on the flow passage formation portion, the piezoelectric film arranged on the vibration film, a first electrode arranged on a surface of the piezoelectric film on a side near to the vibration film, the second electrode arranged on the surface of the piezoelectric film on the side far from the vibration film, and the wire connected to the second electrode.

Abstract: A liquid discharge apparatus includes a power supply potential output section that outputs a first power supply potential, a first and a second switch drive section that generate a first and a second switch drive signal according to a modulation signal of an original drive signal, a first and a second switch that operate according to the first and the second switch drive signal, a rectifying device that is arranged between an output terminal of the power supply potential output section and a terminal of the first switch drive section, a connection node that is electrically connected to the first switch and the second switch, a capacitance element that is arranged between the terminal and the connection node, a signal conversion section that converts a signal which is generated at the connection node, into a drive signal, and a piezoelectric element that is transformed by the drive signal.

Abstract: According to the invention, there is provided a recording method including adhering a reaction liquid to a recording region of a recording medium, the reaction liquid containing a reagent which causes aggregation or thickening of a colored ink composition; adhering the colored ink composition to the recording region to which the reaction liquid has been adhered, the colored ink composition containing a resin and a coloring material; and adhering a clear ink composition which contains a resin, to the recording region to which the reaction liquid has been adhered, in which a resin which causes a volume of a calcium acetate aqueous solution of 0.085 mol/kg to be equal to or smaller than 7 mL is contained as the resin contained in the colored ink composition, the calcium acetate aqueous solution being required for aggregating a liquid of 3 mL, which contains the resin so as to have a content of 1 mass %.

Abstract: A printing apparatus includes a conveying unit that conveys a stored sheet to a position where the sheet can be picked up based on received instructions to pick up the stored sheet on which an image is printed. The printing apparatus performs control such that the sheet is not conveyed by the conveying unit while the sheet is being stored in the storage unit.

Abstract: A liquid discharge apparatus includes a power supply potential output section that outputs a first power supply potential, a first and a second switch drive section that generate a first and a second switch drive signal according to a modulation signal of an original drive signal, a first and a second switch that operate according to the first and the second switch drive signal, a rectifying device that is arranged between an output terminal of the power supply potential output section and a terminal of the first switch drive section, a connection node that is electrically connected to the first switch and the second switch, a capacitance element that is arranged between the terminal and the connection node, a signal conversion section that converts a signal which is generated at the connection node, into a drive signal, and a piezoelectric element that is transformed by the drive signal.

Abstract: A liquid jet unit includes a circulation path through which liquid is circulated, and a liquid jet head having an inflow port and an outflow port between which is disposed a flow path forming a part of the circulation path, and a nozzle communicating with the flow path and configured to eject liquid from the liquid jet head. A liquid pump is inserted into the circulation path for circulating liquid in the circulation path. A supply path is connected to the circulation path for supplying liquid to the circulation path. A pressure sensor detects the pressure of liquid in the circulation path and generates corresponding pressure information. The liquid pump is configured to change an amount of liquid to be fed on the basis of the pressure information generated to maintain liquid in the nozzle at a predetermined pressure and draw liquid into the circulation path from the supply path.

Abstract: A medium support unit includes a support unit having a support surface that can support a medium and an adjustment unit that can form a first state in which a recessed portion that is recessed with respect to the support surface or a protruding portion that protrudes with respect to the support surface is formed and a second state in which the recessed portion or the protruding portion is not formed with respect to the support surface. At least one of color and texture is different between the support surface and the adjustment unit.

Abstract: A printing apparatus includes: a paper cassette that includes a plurality of trays, each of which holds a printing medium, and a switching unit that sets one of the plurality of trays as an operable tray; a printing unit that performs printing on the printing medium held in the operable tray; and a display control unit that causes a user interface, on which setting of which one of the plurality of trays is set as the operable tray by the switching unit is performed by a user, to be displayed on a screen when the paper cassette is set in the printing unit.

Abstract: A treatment-object modifying device lowers a pH value of a surface of a treatment object by using dielectric-barrier discharge. The treatment-object modifying device includes discharge electrodes disposed over a conveying route of the treatment object; and a counter electrode disposed to face the discharge electrodes across the conveying route so as to correspond to the respective discharge electrodes. Each discharge electrode has a columnar shape or a cylindrical shape. Curved surfaces of the discharge electrodes faces the counter electrode. Curved surfaces of the discharge electrodes face one another. A distance between the adjacent discharge electrodes is equal to or less than 2 millimeters.

Abstract: A liquid discharging apparatus includes a modulation portion that generates a modulation signal obtained by pulse-modulating a source signal; an amplifier that includes a gate driver generating an amplification control signal based on the modulation signal, a bootstrap circuit supplying power to the gate driver, a power source circuit supplying power to the gate driver and the bootstrap circuit, and a transistor generating the amplification modulation signal that is obtained by amplifying the modulation signal based on amplification control signal; a low-pass filter that generates the driving signal by demodulating the amplification modulation signal; a piezoelectric element that is displaced by applying the driving signal; and a control portion that controls an operation of the amplifier. The control portion performs a second process of starting an amplification operation of the amplifier after a first process of performing supply of power to the bootstrap circuit.

Abstract: A method of ejecting an ink droplet from an inkjet nozzle device having an actuator and a meniscus pinned across a nozzle opening. The method includes the steps of: delivering a sub-ejection pulse to the actuator for perturbing the meniscus from a quiescent state; and subsequently delivering an ejection pulse to the actuator at an instant when the meniscus is perturbed from its quiescent state, the ejection pulse ejecting the ink droplet from the nozzle opening. A time period between a trailing edge of the sub-ejection pulse and a leading edge of the ejection pulse controls a droplet volume of the ejected ink droplet.