Brother Kogyo Kabushiki-kaisha

Masato Sueyasu

Hirofumi Kondo

Yasuhiro Kato

Masayoshi Hayashi

Ryoichi Matsushima

Reiko Toyama

Toru Yamashita

Reiko Higashikawa

Tatsuya Nishikawa

Tomoyuki Kubo

Shuhei Hiwada

Yoshiyuki Tsujimoto

Hiroto Sugahara

Taisuke Mizuno

Takuya Nagai

Keiji Kura

Shotaro Kanzaki

Shigeru Suzuki

Kyohei Naito

Yuya Harada

Mizuyo Takebayashi

Keisuke Manoh

An image forming apparatus that utilizes a communication device is disclosed. A communication unit of a housing which corresponds to an antenna portion is provided at a position at which the communication unit can be seen without obstruction from the upper side. A communication device such as a smartphone can be brought close to or into contact with the communication unit readily. Accordingly, wireless communication between the antenna portion and the communication device can be established.

Image forming apparatus including antenna in cover

An image forming apparatus to which a cartridge including a cartridge substrate is attachable includes a main body electrical substrate, a main body ground terminal connected to the main body electrical substrate and configured to take a ground voltage, a first main body terminal connected to the main body electrical substrate and configured to transmit one of a power supply voltage, a data signal that indicates information, and a synchronization signal, a second main body terminal connected to the main body electrical substrate and configured to transmit remaining two of the power supply voltage, the data signal, and the synchronization signal. The cartridge substrate includes a cartridge ground terminal connected to the main body ground terminal, a first cartridge terminal connected to the first main body terminal, and a second cartridge terminal connected to the second main body terminal.

Image forming apparatus having three terminals electrically connectable with detachable cartridge

An image forming device includes an LED head, a main controller board and an LED controller board. The main controller board comprises a main controller, a voltage output circuit, a first voltage terminal, a second voltage terminal. The voltage output circuit outputs a first voltage via the first voltage terminal and the second voltage via the second voltage terminal. The LED controller board includes a third voltage terminal, a fourth voltage terminal and an LED controller. The third voltage terminal is connected to the first voltage terminal, and the fourth voltage terminal is connected to the second voltage terminal. The LED controller board outputs a voltage according to the first voltage to the LED head. The LED controller is connected to the fourth voltage terminal. A voltage according to the second voltage is input to the LED controller.

Image forming device

A device includes a driving portion, a transformer having a primary winding and a secondary winding, the secondary winding generating an output voltage, the driving portion being connected across the secondary winding so that the output voltage is applied to the driving portion, a switching element connected in series to the primary winding, a first controller provided in a primary side of the transformer for controlling the switching element, and a second controller supplied with the output voltage. The second controller is configured to perform, during implementation of a burst switching control, transmitting a stop signal to the first controller when the output voltage exceeds a first voltage, and transmitting, after transmission of the stop signal, a resumption signal to the first controller when the output voltage falls below a second voltage lower than the first voltage. The first controller controls the switching element to stop performing switching operations in response to the stop signal, and further controls the switching element to resume performing the switching operations in response to the resumption signal.

Device having switching power source operable in burst switching control mode

Image forming apparatus

An image forming apparatus which utilizes a communication device is disclosed. A communication unit of a housing which corresponds to an antenna portion is provided at a position at which the communication unit can be seen without obstruction from the upper side. A communication device such as a smartphone can be brought close to or into contact with the communication unit readily. Accordingly, wireless communication between the antenna portion and the communication device can be established.

Image forming apparatus with communication device

There is provided a piezoelectric actuator, including: first and second piezoelectric layers; a driving electrode arranged between the first and second piezoelectric layers; a second electrode maintained at a predetermined first electrical potential; and a third electrode maintained at a second electrical potential. A neutral plane of the piezoelectric actuator is positioned at a side opposite to the second piezoelectric layer relative to a center plane of the first piezoelectric layer in a direction of stacking of the first and second piezoelectric layers. A first portion of the first piezoelectric layer is sandwiched between the driving electrode and the second electrode, and a second portion of the second piezoelectric layer is sandwiched between the driving electrode and the third electrode. The first and second portions are polarized parallel to the stacking direction such that they are polarized in mutually opposite directions.

Piezoelectric actuator and liquid 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

A liquid jetting apparatus includes: a liquid jetting head in which nozzles for jetting the liquid are formed and which has an actuator for jetting the liquid from the nozzles; an interposer substrate which is provided to the liquid jetting head and on which a driver IC is mounted; a control substrate which controls the liquid jetting head; a wire member which connects the interposer substrate and the control substrate; and a flexible circuit board which connects the interposer substrate and the actuator, wherein the interposer substrate has a first connecting portion to which the wire member is to be connected, and a second connecting portion to which the flexible circuit board is to be connected, and the driver IC is arranged nearer to the first connecting portion than the second connecting portion of the interposer substrate.

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.

Growing community of inventors

Nagoya, Japan

Masato Sueyasu