Abstract: In order to prevent stress caused by bending a flexible wiring board from being applied to the connection section between the flexible wiring board and a driving IC, solder is deposited as a reinforcement member, on both sides of the driving IC connected onto the flexible wiring board.

Abstract: A plurality of land sections, each enclosed by two slits, are formed in a ground wire provided on a side of a flexible wiring board to which a piezoelectric element is connected. Since the ground wire and the land sections are connected by only a thin connection section, the solder deposited on the land sections does not flow to the ground wire.

Abstract: When the driving printed wires from the drive IC are passed between the terminal lands and connected to respective terminal lands, and the printed wires of a number greater than the number of printed wires that can be passed between the terminal lands are required, the driving printed wires from the drive IC are led on the outer side of the columns of the plurality of terminal lands and connected to respective terminal lands.

Abstract: A recording apparatus that has a recording head and a flexible printed circuit board. The recording head, which performs recording on a recording medium, has a plurality of recording elements. One end of the flexible printed circuit board has plurality of feeder wires that connect to one of the terminal lands of each of the recording elements. A first common voltage wire connects the other terminal lands of each of the recording elements to a common potential. A drive circuit is attached to the flexible printed circuit board to drive the recording head via the feeder wires. The other end of the flexible printed circuit board is connected to another circuit board used by the recording apparatus.

Abstract: A recording apparatus that has a recording head and a flexible printed circuit board. The recording head, which performs recording on a recording medium, has a plurality of recording elements. One end of the flexible printed circuit board has plurality of feeder wires that connect to one of the terminal lands of each of the recording elements. A first common voltage wire connects the other terminal lands of each of the recording elements to a common potential. A drive circuit is attached to the flexible printed circuit board to drive the recording head via the feeder wires. The other end of the flexible printed circuit board is connected to another circuit board used by the recording apparatus.

Abstract: A serial signal for generating a plurality of recording waveform signals is transmitted serially from a signal transmission circuit to a head river. A serial-parallel converting circuit parallely converts the serial signal and generates a plurality of kinds of the recording waveform signals. A selector in the head driver selects a predetermined recording waveform signal from the plurality of kinds of the recording waveform signals based on a selection signal corresponding to each of actuators. The drive pulse of the selected recording waveform signal is outputted to a recording head and carries out dot recording.

Abstract: Three waveform generators are provided in order to generate three kinds of basic waveform signals. The waveform generators generate the basic waveform signals in correspondence with parameter data inputted from a parameter register. A head driver selects one waveform signal from the basic waveform signals based on image information, and outputs a driving pulse of the same waveform to a corresponding driving element.

Abstract: An ink-jet head which includes: a flow passage unit having plural nozzles and pressure chambers respectively communicating with the nozzles, the pressure chambers being arranged along a planar surface; an energy transfer unit which is fixed to the planar surface and transfers ejection energy to ink in the pressure chambers; a driver IC which generates a driving signal supplied to the energy transfer unit; a flat flexible cable in which the driver IC is mounted and plural wirings that make connection between the driver IC and the energy transfer unit are formed; and a heat transfer body which sandwiches at least a part of the energy transfer unit between the heat transfer body and the planar surface of the flow passage unit, the heat transfer body having a thickness in a direction perpendicular to the planar surface, the thickness decreasing in a direction away from the driver IC.

Abstract: An ink-jet printer including: an ink-jet head in which are disposed a plurality of nozzles that are divided into a plurality of nozzle groups; a plurality of actuators which are provided to respectively correspond to the plurality of nozzles and which are divided into a plurality of actuator groups respectively corresponding to the plurality of nozzle groups; a plurality of drive circuits which are provided respectively for the plurality of nozzle groups and each of which outputs a drive signal used for ejecting an ink, to the plurality of actuators of a corresponding one of the plurality of actuator groups; a controller which controls the ink-jet printer to perform printing such that, by driving any of the plurality of actuators which are determined on the basis of print data, the ink is ejected, toward a recording medium, from any of the plurality of nozzles that correspond to said any of the plurality of actuators; and an adjusting portion which adjusts the drive signal to be outputted from each of the plu

Abstract: There is disclosed an inkjet printer comprising: an inkjet printhead having an actuator and a plurality of nozzle rows each consisting of a plurality of nozzles through each of which a droplet of ink is ejected onto a recording medium by driving of the actuator; an IC chip having a drive circuit for outputting a drive signal to the actuator based on print data so that the ink droplet is ejected from the each nozzle in accordance with the drive signal; and a temperature-difference-responsive controller which increases a period of time taken for completing printing of a first amount when a difference in temperature between two places at least one of which is on the printhead exceeds a reference value, the temperature-difference-responsive controller not increasing the period of time when the difference does not exceed the reference value.

Abstract: There is disclosed an inkjet recording apparatus which comprises a head having an actuator and at least one nozzle row each of which comprises a plurality of nozzles for ejecting an ink droplet therethrough onto a recording medium by driving of the actuator, a drive element which outputs to the actuator a drive signal for ejecting the ink droplet, an ink supply portion which is connected to the head so as to supply ink to the head, a heat radiating member which has a contact portion in contact with the drive element and an extending portion disposed alongside at least a part of the ink supply portion so as to release heat generated at the drive element, and a head holder which holds the head, the drive element, ink supply portion, and the heat radiating member.

Abstract: An ink-jet recording apparatus includes a recording head which jets inks, and a cable which is connected to the recording head and which is provided with a driving circuit for applying a driving voltage of the recording head. The recording head is formed with nozzle arrays for jetting an ink of a dark color and an ink of a light color respectively. The nozzle array, which jets the ink of the dark color, is disposed farther from the driving circuit than the nozzle array which jets the ink of the light color. The nozzle array, which jets the ink of the dark color, is hardly affected by the heat from the driving circuit. Therefore, the deterioration of the recording quality, which would be otherwise caused by the disturbance of ink discharge from nozzles, is suppressed.

Abstract: An ink jet recording apparatus, including nozzles each of which ejects a droplet of ink toward a recording sheet and which are arranged in one or more arrays in a first direction; pressure changing devices each of which changes a pressure of the ink to be supplied to a corresponding one of the nozzles so that the one nozzle ejects the droplet of ink, wherein the pressure changing devices are grouped into two groups arranged in a second direction perpendicular to the first direction; two flexible wiring cables which are electrically connected to the two groups of pressure changing devices, respectively, and which extend from the two groups of pressure changing devices in opposite directions, respectively, parallel to the second direction; two driver circuits which are provided on, and electrically connected to, the two wiring cables, respectively, and each of which outputs respective drive signals to drive the respective pressure changing devices of a corresponding one of the two groups; and a heat sink includ

Abstract: An ink jet recording apparatus including an ink jet recording head which ejects a droplet of an ink toward a recording medium, a driver circuit device which applies an electric voltage to the ink jet recording head so that the ink jet recording head ejects the droplet of the ink toward the recording medium, a carriage on which the ink jet recording head and the driver circuit device are mounted, and a first heat sink and a second heat sink which are mounted on the carriage such that the first and second heat sinks cooperate with each other to sandwich the driver circuit device and define an inner space.

Abstract: A recording apparatus having: (a) a head unit including an actuator which generates energy required for recording predetermined patterns of image on a recording medium; (b) a circuit board including a driver element which drives the actuator of the head unit; and (c) a heatsink disposed in thermally conductive communication with the driver element. The heatsink has a void portion which is opposed to the head unit.

Abstract: A recording apparatus that has a recording head and a flexible printed circuit board. The recording head, which performs recording on a recording medium, has a plurality of recording elements. One end of the flexible printed circuit board has plurality of feeder wires that connect to one of the terminal lands of each of the recording elements. A first common voltage wire connects the other terminal lands of each of the recording elements to a common potential. A drive circuit is attached to the flexible printed circuit board to drive the recording head via the feeder wires. The other end of the flexible printed circuit board is connected to another circuit board used by the recording apparatus.

Abstract: The invention provides a recording device capable of accurately detecting the temperature of a recording head that stops a recording operation at a maximum temperature regardless of the unevenness in the temperature characteristics of voltage drop in the forward direction of a first sensor. The invention has a driving circuit for driving a recording head. The temperature of the driving circuit is detected by the first sensor by utilizing the temperature characteristics of voltage drop in the forward direction of the first sensor. When a recording device is turned ON, a room temperature and an output voltage of the first sensor are stored in a memory. The invention also has a calculation unit that performs a calculation to obtain a voltage value that the first sensor will output at a predetermined maximum temperature, based on the room temperature and the output voltage stored in the memory.

Abstract: Three waveform generators are provided in order to generate three kinds of basic waveform signals. The waveform generators generate the basic waveform signals in correspondence with parameter data inputted from a parameter register. A head driver selects one waveform signal from the basic waveform signals based on image information, and outputs a driving pulse of the same waveform to a corresponding driving element.

Abstract: To stop recording operation at a maximum temperature regardless of unevenness in temperature characteristics of voltage drop in the forward direction of a first sensor 603. A driving circuit 602 is for driving a recording head 601. Temperature of the driving circuit 602 is detected by the first sensor 603 by utilizing the temperature characteristics of voltage drop in the forward direction of the first sensor 603. At the time of when a recording device 1 is turned ON, a room temperature and an output voltage of the first sensor 603 are stored in a memory 24. Also, a calculation unit 25 performs calculation to obtain a voltage value that the first sensor 603 will output at a predetermined maximum temperature, based on the room temperature and the output voltage stored in the memory 24. When an output from the first sensor 603 reaches the output value calculated by the calculation unit 25, then the control circuit 22 stops recording operation.

Abstract: An ink jet recording apparatus of the shear mode type includes a recording head having a nozzle and, when a drive pulse signal is supplied thereto, driven to expel, from the nozzle, an ink supplied from an ink supply onto a recording medium so that recording is executed, a driver for supplying the pulse signal to the recording head, a temperature sensor for detecting an ambient temperature, and a control for changing the drive pulse signal corresponding to one record data on the basis of the ambient temperature detected by the temperature sensor.