Abstract: In accordance with one embodiment, an inkjet head comprises a plurality of groove-shaped pressure chambers formed on piezoelectric members of which the polarization directions are opposite, and a nozzle plate arranged at the lateral side of the pressure chambers across a lid section with high rigidity. A plurality of through holes connected to a plurality of nozzles formed on the nozzle plate is formed in the lid section. The inkjet head is set in a range of 10-25% before and after a center, that is, a length ratio where the relation between ejection voltage of ink ejected from the nozzles and a length ratio between the length of the through hole of the lid section in the longitudinal direction of the pressure chamber and the length of the pressure chamber in the longitudinal direction of the pressure chamber is minimized.

Abstract: In a recording apparatus, a dot diameter of a first color ink formed by discharging a predetermined amount of the first color ink onto a surface of a second color ink fixed on a recording medium is smaller than a dot diameter of the second color ink formed by discharging the predetermined amount of the second color ink onto a surface of the first color ink fixed on the recording medium, and a recording head discharges the plurality of inks such that with respect to pixels forming an image in a unit area, pixels formed by discharging the second color ink and the first color ink in this order are greater than pixels formed by discharging the first color ink and the second color ink in this order.

Abstract: A recording apparatus includes a transportation belt that transports a recorded medium; a washing portion that washes the transportation belt; and a selection unit that selects a transportation mode for transporting the recorded medium from among a washing transportation mode in which the transportation belt is transported while being washed by the washing portion, and a non-washing transportation mode in which the transportation belt is transported without being washed by the washing portion.

Abstract: A printhead assembly includes a printbar beam member, a printhead, and a first eccentric pin. The printbar beam member includes a beam surface and a first cavity disposed through the beam surface. The printhead includes a printhead surface and a second cavity disposed through the printhead surface. The first eccentric pin may be inserted into the first cavity and the second cavity to couple the printhead to the printbar beam member. The first eccentric pin may rotate to adjust a position of the printhead relative to the printbar beam member along a first axis along the beam surface.

Abstract: A liquid discharge apparatus includes a discharge portion capable of discharging a liquid, a carriage movable along scanning directions between a first position and a second position, a tube that is connected to the discharge portion and that supplies the liquid to the discharge portion, a frame provided at such a position as to be able to contact the tube, and a tube support portion that is provided between the frame and the carriage and that has a supporting surface capable of supporting the tube. The carriage includes an inclined portion that is inclined so as to move the tube toward the supporting surface when the carriage moves along the scanning directions while the tube is not supported by the supporting surface.

Abstract: An ink set includes an ink composition for background containing a pigment for background and a coloring ink composition containing a coloring pigment. Provided that the surface tension of the ink composition for background is S1 (mN/m), and the surface tension of the coloring ink composition is S2 (mN/m), S1 and S2 satisfy ?5<(S1?S2)<4. the ink set is used in a first mode in which the ink composition for background and the coloring ink composition are recorded on a recording medium by being caused to be adjacent to each other, or in a second mode in which the ink composition for background is recorded on an image which has been recorded using the coloring ink composition. A recording apparatus includes this ink set.

Abstract: An electrostatic latent image forming method for forming, on an image carrier, an electrostatic latent image that has a pattern where there are an irradiated area and a not-irradiated area in a mixed manner, the electrostatic latent image forming method comprises; adjusting an exposure condition of an irradiated area that is included in the irradiated area and is adjacent to the not-irradiated area so that an electric field intensity of an electrostatic latent image that corresponds to the not-irradiated area is increased so as to prevent adhesion of a developer, and irradiating the image carrier with light under the adjusted exposure condition.

Abstract: The invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible and in which a filter is not clogged even when the variation of a liquid consumption amount is large, and a liquid ejecting apparatus including the flow path member. Alternatively, the invention is to provide a liquid ejecting head including a flow path member which allows a capacity of an air bubble chamber to be increased as much as possible while being miniaturized in a transporting direction and a liquid ejecting apparatus including the flow path member.

Abstract: An inkjet printing system includes: a plurality of print head cartridges; a print head chassis for supporting the plurality of print head cartridges; a lift mechanism for lifting and lowering the print head chassis between a printing position, a transition position, and a maintenance position; and a maintenance chassis supporting a chassis sub-frame having a corresponding plurality of maintenance cradles; and a sub-frame movement mechanism for slidably moving the chassis sub-frame with respect to the maintenance chassis. In the transition position, the print head chassis is held at a height, relative to a platen, that allows the maintenance chassis to be moved from a storage position to an operational positional under the print head chassis. Further, in the operational position, the sub-frame movement mechanism aligns a capper or a wiper with a respective printhead.

Abstract: A motor control method performed by a controller includes monitoring a motor load of at least one of a plurality of motors including a first motor and a second motor driven by one common power source having a protection circuit, wherein the protection circuit is operated to shut down the power source in a case where a current value of the power source continues to exceed a threshold during a period Tg, and stopping motor drive in a case where the monitored motor load continues to exceed the threshold during a period Tn, which is shorter than the period Tg. In addition, monitoring of the motor load is skipped during acceleration operations of the first motor and the second motor when both the first motor and the second motor are driven, and then monitoring of the motor load is restarted.

Abstract: An object of the present invention is to provide a liquid discharge head in which a driver IC is not easily damaged at the time of assembling, and a recording device using the same. A liquid discharge head of the present invention is the liquid discharge head including a head main body, a casing, and a driver IC that drives the head main body. The casing has an opening and is in contact with the head main body at the opening so as to cover at least a part of the head main body, a part of an inner surface of a side plate of the casing continuing from the opening has an inclination portion inclined toward the inner side of the casing with respect to the opening, and the driver IC is in contact with the inclination portion of the inner surface.

Abstract: An inkjet printer includes a print head, a nozzle position specifying section and a print control section. The print head includes a plurality of nozzles to eject ink. The nozzle position specifying section is configured to specify a position of a first nozzle that exhibits defective ejection. The print control section is configured to print dots in a plurality of sizes. The print control section is configured to change a dot size of a dot to be printed by a second nozzle, which is positioned adjacent to the first nozzle, to a larger size than a dot size specified in an image data, and to change a dot size of a dot to be printed by a third nozzle, which is positioned adjacent to the second nozzle, to a smaller size than the dot to be printed by the second nozzle after the change.

Abstract: An optical writing device having; a plurality of light-emitting points; a plurality of drive circuits for supplying drive currents to the plurality of light-emitting points respectively; a photodetector for outputting signals indicating quantities of light entering thereto from the respective light-emitting points; a gain switch circuit for outputting photodetection signals obtained by amplifying the signals output from the photodetector in regard to the respective light-emitting points with gains preset for the respective light-emitting points; and a control circuit for controlling the drive circuits such that the photodetection signals output from the gain switch circuit in regard to the respective light-emitting points coincide with a value substantially equal to a predetermined reference value. The gains for the respective light-emitting points are preset based on the distances between the photodetector and the respective light-emitting points.

Abstract: A liquid ejection head, including: a plurality of ejection ports from which a liquid is ejected; a plurality of pressure chambers which communicate with the plurality of ejection ports and are constituted by piezoelectric portions that eject a liquid from the ejection ports by shrink-deforming; and a control unit configured to drive the piezoelectric portions so that the pressure chambers shrink-deform, wherein the control unit controls driving timing of the piezoelectric portions such that, after any of the plurality of pressure chambers is made to shrink-deform, a pressure chamber disposed not to adjoin the shrink-deformed pressure chamber is made to shrink-deform.

Abstract: A printer includes a discharge portion, a platen, a support portion, a female screw, an adjusting member, an engaging member, and a spring. The discharge portion discharges a liquid. The platen has a platen hole, is disposed to face the discharge portion, and supports a printing medium. The support portion is disposed on the opposite side of the platen from the discharge portion and faces the platen. The adjusting member is rotatably attached to the platen by being inserted into the platen hole, and screws into the female screw provided on the support portion. The engaging member is disposed between the platen and the female screw, and engages with the adjusting member. The spring is disposed around the circumference of the adjusting member, between the engaging member and the female screw. The spring generates a restoring force when the spring compressed between the engaging member and the female screw.

Abstract: A recording apparatus includes a recording unit, a discharge unit, and a medium receiving unit. The medium receiving unit has a sheet section which is flexible and of which a front-end portion is disposed to be closer to a discharge side of a recording medium than a terminal-end portion. When the medium receiving unit is transited from a serviceable state to an accommodated state, the front-end portion of the sheet section becomes closer to the terminal-end portion of the sheet section and a connection portion between the front-end portion and the terminal-end portion of the sheet section moves to a side opposite to the discharge side.

Abstract: A method for printing a graphical image on a wood furniture work piece includes printing on an unprimed print surface of the wood furniture work piece with an ultraviolet-curable ink printer. The print surface of the wood furniture work piece may be prepared for printing by sanding with an abrasive having a grit rating of no greater than 150. The graphical image may be converted from a digital image data file sourced from, for example, a camera, an optical scanner, or the like. In this manner, durable digital images may be permanently applied to wood furniture work pieces such as tabletops.

Abstract: A printer has a platen top unit fastened above the platen unit. The platen top unit is separate from the platen unit, and has first star wheels and second star wheels disposed on parallel horizontal frame members extending perpendicularly to the media conveyance direction above the platen surface. The first star wheels and second star wheels prevent the continuous paper conveyed over the platen surface from lifting away from the platen surface.

Abstract: A print head has an ink reservoir to hold ink, the reservoir having protrusions, an external manifold coupled to the ink reservoir, the ink manifold having channels on a first surface that match the protrusions, and an adhesive in the channels to contact the protrusions. A method of assembling a print head includes mounting a jet stack to a flat plate of a merge fixture, dispensing adhesive on an external manifold attached to the jet stack, placing a reservoir in the merge fixture above the external manifold such that the reservoir does not contact the adhesive, attaching an upper plate to the reservoir to set a depth, pressing the reservoir into the adhesive, and curing the adhesive.

Abstract: An apparatus for depositing nanocomposite material comprising a nanocomposite-ink factory and inkjet printer. The nanocomposite-ink factory producing nanocomposite-ink and the inkjet printer receiving the nanocomposite-ink. The inkjet printer having a printhead and a positioning mechanism. The printhead having one or more nozzles to dispense nanocomposite-ink droplets.