Brother Kogyo Kabushiki-kaisha

Shuhei Hiwada

Hiroto Sugahara

Tomoyuki Kubo

Koji Imai

Hirofumi Kondo

Masayoshi Hayashi

Toru Yamashita

Yasuhiro Kato

Shigeru Suzuki

Masato Sueyasu

Reiko Higashikawa

Tatsuya Nishikawa

Tsuyoshi Suzuki

Motoshi Kishi

Takahiko Watari

Manabu Yoshimura

Jie Chen

Kazuteru Kojima

There is provided head including: nozzle configured to discharge liquid by energy generating element; signal generator configured to generate, based on first and second data representing first and second driving waveform, time division multiplex signal including first and second portions of the first driving waveform, and third and fourth portions of the second driving waveform; and separator configured to separate first or second driving waveform signal representing the first or second driving waveform from the time division multiplex signal. The energy generating element is configured to be driven by the first or second driving waveform signal. In the time division multiplex signal, the third portion is aligned between the first and second portions and the second portion is aligned between the third and fourth portions. The time division multiplex signal is capable of transmitting the first and second data via single signal line.

Head, printing apparatus, and head controller

There is provided a print apparatus including: a piezoelectric member; an individual electrode formed in the piezoelectric member; a first common electrode formed in the piezoelectric member so that the first common electrode is opposed to the individual electrode; a second common electrode formed in the piezoelectric member so that the second common electrode is opposed to the individual electrode, a voltage to be applied to the second common electrode being different from a voltage to be applied to the first common electrode; and a detection circuit configured to detect a capacitance of a first capacitor configured by the piezoelectric member, the individual electrode, and the first common electrode and a second capacitor configured by the piezoelectric member, the individual electrode, and the second common electrode. The detection circuit includes an oscillation circuit configured to be connected to the individual electrode.

Print apparatus and head

A liquid ejecting apparatus includes a liquid ejection head, a plurality of amplifiers, and a plurality of signal line sets. The liquid ejection head has a plurality of actuators. The plurality of amplifiers is configured to amplify driving signals supplied to each of the plurality of actuators. The plurality of signal line sets is provided for respective ones of the plurality of amplifiers. Each of the plurality of signal line sets includes a supply line and a return line. The supply line is configured to supply the driving signals amplified by a corresponding one of the plurality of amplifiers to the plurality of actuators. The return line is configured to return the driving signals to the corresponding one of the plurality of amplifiers. Each of the plurality of amplifiers is electrically floating.

Liquid ejecting apparatus

There is provided a liquid discharge apparatus, including: a drive element configured to apply discharge energy to the liquid to discharge the liquid; signal generators configured to generate a plurality of types of drive signals having mutually different waveforms to drive the drive element; and drive switches electrically located between the signal generators and the drive element to correspond to the plurality of types of drive signals respectively. The drive switches include a first drive switch and a second drive switch which are different in ON-resistance.

Liquid discharge apparatus

A liquid jetting apparatus includes: a channel unit formed with a plurality of nozzles and a plurality of liquid channels communicating with the nozzles; an actuator including a plurality of drive sections, which are provided to correspond to the nozzles, include a plurality of connecting terminals, and are configured to apply jetting energy to a liquid in the liquid channels; and a flexible wiring member including a plurality of connecting portions joined to the plurality of connecting terminals of the actuator and a plurality of wires connected to the connecting portions. The wiring member includes a protrusion formed by bending a portion, different from a portion formed with the connecting portions, at which at least a part of the wires are formed, to project toward a side opposite to a connecting surface for connecting with the actuator.

Liquid jetting apparatus, actuator device, and method for producing liquid jetting apparatus

There is provided a liquid droplet jetting apparatus, including: a liquid droplet jetting head configured to include a liquid droplet jetting surface formed with a plurality of nozzles from which liquid droplets are jetted, an energy applying mechanism configured to apply a jetting energy to a liquid in each of the nozzles, and a driving device configured to drive the energy applying mechanism; a relative movement mechanism configured to relatively move, along the liquid droplet jetting surface, the liquid droplet jetting head and an object to be jetted; and a heat radiating member configured to be provided in the liquid droplet jetting head to radiate heat generated in the driving device. The heat radiating member includes a heat radiating surface which is positioned on a plane including the liquid droplet jetting surface or which projects toward the object as compared with the plane including the liquid droplet jetting surface.

Liquid droplet jetting apparatus

There is provided a liquid jetting apparatus including: a liquid jetting head configured to jet liquid; a liquid discharge unit configured to discharge the liquid from the liquid jetting head; a waste liquid recover unit including a waste liquid absorber configured to absorb a waste liquid discharged from the liquid jetting head by the liquid discharge unit and detection electrodes configured to detect a waste liquid amount absorbed into the waste liquid absorber; and a vibration generating source configured to vibrate the waste liquid absorber in a vibration direction, wherein the detection electrodes are disposed to make contact with an end surface defining the waste liquid absorber, and a normal direction of the end surface intersects with the vibration direction.

Liquid jetting apparatus

There is provided a liquid droplet jetting apparatus configured to jet liquid droplets onto an object, including: a channel member in which a nozzle for jetting the liquid droplets and a liquid channel communicating with the nozzle are formed; an energy conversion element which is configured to apply a jetting energy to the liquid in the nozzle; a drive unit which is configured to supply a driving signal to the energy conversion element; a flow detecting sensor which is configured to detect a liquid flow inside the liquid channel; and a cabling member which includes a drive line connected to the energy conversion element, and a signal output line connected to the flow detecting sensor to transmit a detection signal corresponding to the liquid flow inside the liquid channel output from the flow detecting sensor.

There is provided a liquid jetting apparatus which includes: a liquid jetting head including a channel unit and a piezoelectric actuator, an elastic deformation layer arranged on the piezoelectric actuator, a plurality of head-side contact points arranged on the elastic deformation layer, a substrate arranged to face a surface of the liquid jetting head, a plurality of substrate-side contact points arranged on the substrate, and a fixing member fixing the liquid jetting head and the substrate. When the fixing member fixes the liquid jetting head and the substrate, a portion of the elastic deformation layer, on which the head-side contact points are arranged, is sandwiched by the piezoelectric actuator and the substrate to undergo elastic deformation. The elastic deformation layer is configured to press the plurality of head-side contact points onto the substrate-side contact points by a force arising from a tendency to restore a state before elastic deformation.

Liquid jetting apparatus, connecting structure of substrate, and method for manufacturing liquid jetting apparatus

A method for manufacturing a liquid-jetting head includes: providing a flow passage unit in which a plurality of jetting ports and a plurality of individual liquid flow passages are formed; providing a plurality of actuator units which are arranged to be adjacent to each other on a surface of the flow passage unit and each of which includes a plurality of actuators having individual electrodes corresponding to the individual liquid flow passages; providing a drive circuit for each of the actuator units which supplies a drive signal to each of the actuators; providing a plurality of wiring members each of which is fixed on one of the actuator units to electrically connect the actuator unit and the drive circuit; folding base materials of the wiring members; and joining the base materials to the actuator units after folding the base materials.

Method for manufacturing liquid-jetting head and liquid-jetting head

A liquid jetting apparatus is provided including: a liquid jetting head having a nozzle formed therein through which the liquid is jetted; a driving unit which is configured to output energy to the liquid jetting head; an energy recovery mechanism which is configured to recover and supply a part of the energy supplied from the driving unit to the liquid jetting head; and a mist removing unit to which the part of the energy recovered by the energy recovery mechanism is supplied so that the supplied energy is used to remove a mist generated under a condition that the liquid jetting head jets the liquid.

A demodulator for recording head includes a reference-clock input section to which a reference clock is inputted; a modulated-signal input section to which a plurality of types of modulated signals generated by modulating a plurality of types of recording signals corresponding to a plurality of types of jetting modes of the recording head are inputted; a demodulation-clock generating circuit which generates from the reference clock, a demodulation clock for detecting the timing at which the value of the modulated signal changes; and a demodulator circuit which demodulates the modulated signal to the recording signal by detecting the timing, at which the value of the modulated signal changes, by using the demodulation clock, and the plurality of types of modulated signals have different timings, based on the reference clock, at which values of the modulated signals change, respectively.

Demodulator for recording head, data transfer unit for recording head and recording apparatus

There is provided a liquid discharge apparatus which includes a liquid channel which connects a discharge port and a pressure chamber; a piezoelectric layer one surface of which facing the pressure chamber; a power feeding electrode which applies a voltage to the piezoelectric layer; and a liquid electroconductive material which electrically connects the other surface of the piezoelectric layer and the power feeding electrode, and in an area on the other surface, of the piezoelectric layer, overlapping with the pressure chamber, a contact area which is an electrical contact between the piezoelectric layer and the liquid electroconductive material is formed. Accordingly, it is possible to provide a liquid discharge apparatus which is capable of realizing a small size channel unit and an improvement in a resolution of an image which is formed by a discharging liquid, and to change appropriately a shape of the piezoelectric layer.

Liquid discharge apparatus and method for producing liquid discharge apparatus

A flexible wiring cable includes a flexible flat base, and a plurality of first and second leads wired on first and second surfaces of the base respectively. First and second circuit elements are mounted on the first and second leads respectively. A plurality of terminal electrodes is provided on the first surface of the base. The terminal electrodes include a plurality of first terminal electrodes formed on the first leads and a plurality of second terminal electrodes formed on the second leads, being exposed to the outside of the first surface side via through holes formed in the base.

Flexible wiring cable

A wiring unit includes a first insulating layer which is provided with an electrode and a wire electrically connected to the electrode on one surface of the first insulating layer; a second insulating layer which is formed on the one surface of the first insulating layer and which covers the wire; an adhesive layer which is formed on a surface, of the second insulating layer, not facing the first insulating layer; a through hole which is formed through the adhesive layer and the second insulating layer and in which the electrode is exposed; a protective sheet which is detachably adhered on a surface, of the adhesive layer, not facing the second insulating layer, and; and a liquid electroconductive material which is filled in a space defined by the through hole, the electrode exposed in the through hole, and the protective sheet.

Growing community of inventors

Toyoake, Japan

Shuhei Hiwada