Abstract: A recording-head driving device for driving a recording head including a plurality of actuator sections each provided for recording on a recording medium, the recording-head driving device including: a wiring board elongated in a longitudinal direction to be connected, at a connected portion near to one of longitudinally opposite ends thereof, to the plurality of actuator sections of the recording head; two drive-circuit units mounted on respective portions of the wiring board such that the connected portion of the wiring board is interposed between the mount portions, in the longitudinal direction, and wherein the wiring board includes: (a) a plurality of wires a part of which connects one of the two drive-circuit units and a part of the plurality of actuator sections, and the rest of which connects the other of the two drive-circuit units and the rest of the plurality of actuator sections; and (b) a plurality of input terminals electrically connected to the two drive-circuit units and provided on the other

Abstract: A sheet skew correcting device includes a first sheet conveyance unit which a conveyance force at a center side is smaller than a conveyance force at a first side, a second sheet conveyance unit which is adjacent to the first sheet conveyance unit across the center and a conveyance force at the center side is smaller than a conveyance force at a second side, a first drive unit to drive the first rotator, a second drive unit to drive the third rotator, a detection unit to detect an inclination of the sheet, and a control unit to control the first drive unit and the second drive unit based on a detection result of the detection unit.

Abstract: An organic thin film transistor including a substrate having thereon at least three terminals of a gate electrode, a source electrode and a drain electrode, an insulator layer and an organic semiconductor layer, with a current between a source and a drain being controlled upon applying a voltage to the gate electrode, wherein a channel control layer including an amorphous organic compound having an ionization potential of less than 5.8 eV is provided between the organic semiconductor layer and the insulator layer, has excellent stability of a field-effect mobility and a high response speed even when stored at a high temperature.

Abstract: A technique is provided that can realize highly accurate skew correction without employing any particularly complicated device configuration. The quantity of skew of a sheet is determined in accordance with a detection result from a first pair of sensors. Driving of each of first rollers and second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the first pair of sensors. The quantity of skew of the sheet is determined in accordance with a detection result from a second pair of sensors. Driving of each of the first rollers and the second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the second pair of sensors.

Abstract: An ink supply device includes an ink cartridge and a cartridge mounting portion including a first detector, a second detector, and a determiner. The ink cartridge includes a first detectable portion, a second detectable portion, and a third detectable portion. The determiner is configured to execute a first determination process in which it is determined whether or not the second detector detects the second detectable portion when the first detector initially detects the first detectable portion during an insertion of the ink cartridge into the cartridge mounting portion, and the determiner is configured to execute a second determination process in which it is determined whether or not the second detector detects the second detectable portion when the first detector stops detecting the first detectable portion during the insertion of the ink cartridge into the cartridge mounting portion.

Abstract: A printer apparatus includes a drive circuit and a flexible board on which the drive circuit is mounted. A first input line and a second input line for inputting a driving signal respectively to the drive circuit and an actuator are provided on the flexible board. A thermistor that has a high resistance value with terminals provided therein being in an electrically disconnected state at a temperature not less than a predetermined temperature and has a low resistance value with the terminals being in an electrically connected state at a temperature lower than the predetermined temperature is provided between the first input line and the second input line.

Abstract: A printer comprises an ink-jet head, and a control unit which has a judgment pattern printing control section. When a judgment pattern is printed, the judgment pattern printing control section allows the discharge of ink droplets of a second color to an area on which ink droplets of a first color are to be landed, before discharging the ink droplets of the first color having a small color difference with respect to a color of a medium. Accordingly, the ink discharge malfunction is reliably judged for the nozzle irrelevant to the color of the recording medium and the color of the ink discharged from the ink-jet head.

Abstract: A technique is provided that can realize highly accurate skew correction without employing any particularly complicated device configuration. The quantity of skew of a sheet is determined in accordance with a detection result from a first pair of sensors. Driving of each of first rollers and second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the first pair of sensors. The quantity of skew of the sheet is determined in accordance with a detection result from a second pair of sensors. Driving of each of the first rollers and the second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the second pair of sensors.

Abstract: A piezoelectric actuator includes a first active portion interposed by an individual electrodes and a first constant electric potential electrode and a second active portion interposed by the individual electrode and a second constant electric potential electrode, and a wiring structure is provided with a wiring board and driver IC. The wiring board is provided with individual lines, a power line, a ground line, a first and second constant electric potential lines, a first short circuit line for short-circuiting the power line and the first constant electric potential line, and a second short circuit line for short-circuiting the ground line and the second constant electric potential line. Accordingly, a liquid droplet discharge head, which is capable of suppressing the crosstalk, is provided. The liquid droplet discharge head has the wiring structure suitable for the head.

Abstract: A recording apparatus including: a recording head having a plurality of actuators for performing dot printing; a drive circuit which outputs respective drive pulses to the respective actuators; and a main circuit which transmits, to the drive circuit, a drive signal for outputting the respective drive pulses to the respective actuators. The drive signal includes selection data for selecting, for each of the actuators, a drive-waveform signal which provides a waveform of each of the drive pulses, among plural sorts of drive-waveform signals. The main circuit transmits, to the drive circuit, a clock signal and a drive-waveform-data signal that is a serial signal in which is included data to generate the plural sorts of drive-waveform signals. The drive circuit includes a drive-waveform-signal generating circuit which generates the plural sorts of drive-waveform signals on the basis of the clock signal and the drive-waveform-data signal.

Abstract: A sheet carrying device includes: a sheet carrying unit having a first sheet carrying unit and a second sheet carrying unit, at least one of which has a sheet carrying force changing along a direction orthogonal to a traveling direction of a sheet, the first sheet carrying unit carrying the sheet in the traveling direction, the second sheet carrying unit carrying the sheet in the traveling direction together with the first sheet carrying unit; and a control unit which controls the carrying by the first sheet carrying unit and the carrying by the second sheet carrying unit on the basis of a result of detection from a detection unit which detects an inclination of the sheet that is traveling.

Abstract: A liquid supply apparatus includes a container mounting portion and a liquid container. The liquid container includes a case configured to store liquid therein, and a movable member positioned in the case. The movable member and the case comprise a pair of magnetic materials on which a magnetic force acts, such that the pair of magnetic materials attracts each other. When the liquid container is not mounted to the container mounting portion, the movable member is in a fixed state in which the movable member is fixed to the case by the magnetic force acting between the pair of magnetic materials. The container mounting portion includes a release member configured to release the movable member from the fixed state by generating a magnetic force acting between the pair of magnetic materials, such that the pair of magnetic materials separates away from each other.

Abstract: A liquid supply apparatus includes a container mounting portion and a liquid container. The liquid container includes a case configured to store liquid therein, a first movable member positioned in the case, a second movable member positioned on the case, and a retainer configured to retain the second movable member in the first position. The first movable member and the second movable member include a pair of magnetic materials. When the second movable member moves from a first position to a second position, the first movable member is released from a fixed state in which the first movable member is immovably fixed to the case by a magnetic force acting between the pair of magnetic materials.

Abstract: To provide a sheet conveying technique that can realize highly accurate skew correction with an inexpensive and simple apparatus configuration. A sheet conveying apparatus includes: first and second rollers that are arranged in positions different from each other in a direction orthogonal to a sheet conveying direction and can be driven to rotate independently from each other; a first skew detecting unit that is arranged on an upstream side or a downstream side of the first and second rollers in the sheet conveying direction and detects skew of a sheet at first skew detection accuracy; and a second skew detecting unit that is arranged further on the downstream side than the first skew detecting unit in the sheet conveying direction and detects skew of the sheet at second skew detection accuracy higher than the first skew detection accuracy. A skew amount of the sheet is determined on the basis of detection results of the respective first and second skew detecting units.

Abstract: In an organic electroluminescence device in which one or more organic compound layer is interposed between a pair of electrodes constituted from an anode and a cathode, the organic compound layer comprises a hole transporting layer and/or a hole injecting layer, and polyarylamine having a specific structure is contained in the above hole transporting layer and/or hole injecting layer, whereby the organic electroluminescence device obtained by using polyarylamine is provided. In particular, materialized is the organic electroluminescence device in which a production process is simplified and which is increased in a size of a screen and a improved in device performance.

Abstract: An ink cartridge-attaching device includes a cartridge attachment section to which cartridges each storing an ink are attachable; optical sensors which are provided on the cartridge attachment section, which detect the cartridges attached to the cartridge attachment section, and each of which has light-emitting portion and light-receiving portion; and a controller which controls the optical sensors to obtain, based on signals from the optical sensors, information about the cartridges; and the optical sensors are disposed such that the light-emitting portion and the light-receiving portion of the optical sensors are arranged alternately in a row; and light emitted from the light-emitting portion included in a certain optical sensor among the optical sensors is received by the light-receiving portion included in the certain optical sensor and received by another light-receiving portion adjacent to the light-emitting portion and included in another optical sensor, among the optical sensors, adjacent to the certa

Abstract: A cartridge-information detecting device including: an optical sensor for detecting information about a cartridge which stores ink and is removably mounted on a cartridge mount, the information including specific information indicating that the cartridge is in a state of being mounted on or removed from the cartridge mount; and a controller including a timer which measures time and configured to execute a control for changing an operational mode of the optical sensor, wherein the controller permits the optical sensor to operate in a constant operational mode in which the information about the cartridge is constantly detected through the optical sensor until the timer has measured a predetermined time from a timing at which the detection of information about the cartridge becomes to be allowed, and wherein the controller permits the optical sensor to operate in an intermittent operational mode in which only the specific information is intermittently detected through the optical sensor, after the predetermined

Abstract: An ink cartridge accommodating device is provided. The ink cartridge accommodating device includes: an accommodating portion which is configured to accommodate a plurality of ink cartridges arranged in an arrangement direction; and a plurality of sensors which are provided correspondingly to the plurality of ink cartridges, and which optically detect information related to the plurality of ink cartridges, respectively. Each of the sensors includes a light-emitting element which emits light and a light-receiving element which receives light. The light-emitting elements or the light-receiving elements of adjacent sensors are arranged adjacent to each other.

Abstract: A technique is provided that can realize highly accurate skew correction without employing any particularly complicated device configuration. The quantity of skew of a sheet is determined in accordance with a detection result from a first pair of sensors. Driving of each of first rollers and second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the first pair of sensors. The quantity of skew of the sheet is determined in accordance with a detection result from a second pair of sensors. Driving of each of the first rollers and the second rollers is separately controlled to carry the sheet in such a manner as to reduce the quantity of skew determined in accordance with the detection result from the second pair of sensors.

Abstract: A polymer compound for an organic electroluminescence device, which has a halogen element content of 50 ppm by mass or less.