Abstract: There is provided a liquid discharging apparatus including: a discharging portion which discharges liquid; a fixing portion which fixes the discharging portion; a circuit substrate for controlling discharge of the liquid; a head cover which covers the circuit substrate; and a covering portion which connects the fixing portion and the head cover to each other, and covers a part between the fixing portion and the head cover.

Abstract: A liquid discharge apparatus includes a control unit; and a head unit, in which the control unit includes a data generation unit, and a drive signal generation unit, the head unit includes a discharge unit, residual vibration detection unit, and an amplification unit, the data generation unit generates and outputs discharge control data for controlling discharge of liquid and gain data for defining an amplification rate of an amplification unit, the drive signal generation unit generates and outputs a drive signal including a plurality of waveforms, the discharge unit discharges the liquid by applying a waveform assigned by the discharge control data among the plurality of waveforms, the residual vibration detection unit detects residual vibration of the discharge unit and outputs a residual vibration signal, and the amplification unit amplifies the residual vibration signal with the amplification rate defined by the gain data and outputs the amplified signal.

Abstract: A liquid discharge apparatus includes a controller, a drive signal generation unit, a discharge unit, a residual vibration detection unit, and an amplification unit, in which the controller generates discharge control data for controlling discharge of liquid and controls an amplification rate of an amplification unit, the drive signal generation unit generates and outputs a drive signal including a plurality of waveforms driving the discharge unit, the discharge unit discharges the liquid by applying a waveform assigned by the discharge control data among the plurality of waveforms included in the drive signal, the residual vibration detection unit detects residual vibration of the discharge unit and outputs a residual vibration signal indicating the residual vibration, after the discharge unit is driven by the drive signal, and the amplification unit amplifies the residual vibration signal with the amplification rate controlled by the controller and outputs the amplified signal.

Abstract: A liquid ejecting apparatus includes a wiring substrate; and a liquid ejecting head, in which the liquid ejecting head includes a plurality of electrodes, an ejecting unit, and a non-ejecting unit, the wiring substrate is connected to the plurality of electrodes, the ejecting unit includes a driven element which is displaced due to a signal waveform applied to an electrode which is provided so as to correspond to at least one of the plurality of electrodes, a pressure chamber, and nozzles, the non-ejecting unit is provided so as to correspond to at least another electrode among the plurality of electrodes, and does not include at least one of the nozzle, the driven element, and the pressure chamber, and the signal waveform which is applied to an electrode which corresponds to the non-ejecting unit is designated by a dummy signal in the printing data.

Abstract: A printing apparatus includes: a liquid ejecting module having a plurality of liquid ejecting heads; a driving substrate mounted with a driving circuit that generates a driving signal; a control unit that generates an ejection control signal; and a relay substrate. The driving signal is transferred from the driving substrate to the relay substrate via a first wire, and the driving signal is transferred from the relay substrate to the liquid ejecting module via a second wire. The ejection control signal is transferred from the control unit to the liquid ejecting module via a third wire.

Abstract: A liquid discharge apparatus includes a control unit; and a head unit, in which the control unit includes a data generation unit, and a drive signal generation unit, the head unit includes a discharge unit, residual vibration detection unit, and an amplification unit, the data generation unit generates and outputs discharge control data for controlling discharge of liquid and gain data for defining an amplification rate of an amplification unit, the drive signal generation unit generates and outputs a drive signal including a plurality of waveforms, the discharge unit discharges the liquid by applying a waveform assigned by the discharge control data among the plurality of waveforms, the residual vibration detection unit detects residual vibration of the discharge unit and outputs a residual vibration signal, and the amplification unit amplifies the residual vibration signal with the amplification rate defined by the gain data and outputs the amplified signal.

Abstract: A liquid discharge apparatus includes a controller, a drive signal generation unit, a discharge unit, a residual vibration detection unit, and an amplification unit, in which the controller generates discharge control data for controlling discharge of liquid and controls an amplification rate of an amplification unit, the drive signal generation unit generates and outputs a drive signal including a plurality of waveforms driving the discharge unit, the discharge unit discharges the liquid by applying a waveform assigned by the discharge control data among the plurality of waveforms included in the drive signal, the residual vibration detection unit detects residual vibration of the discharge unit and outputs a residual vibration signal indicating the residual vibration, after the discharge unit is driven by the drive signal, and the amplification unit amplifies the residual vibration signal with the amplification rate controlled by the controller and outputs the amplified signal.

Abstract: A printing apparatus includes: a liquid ejecting module having a plurality of liquid ejecting heads; a driving substrate mounted with a driving circuit that generates a driving signal; a control unit that generates an ejection control signal; and a relay substrate. The driving signal is transferred from the driving substrate to the relay substrate via a first wire, and the driving signal is transferred from the relay substrate to the liquid ejecting module via a second wire. The ejection control signal is transferred from the control unit to the liquid ejecting module via a third wire.

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit that has an ejecting unit for ejecting liquid; a first wiring that transmits a driving signal for driving the ejecting unit to the liquid ejecting unit; a first connector that is provided in the liquid ejecting unit, and electrically connects the first wiring; a second wiring that transmits an ejecting control signal for controlling a supply of the driving signal to the ejecting unit to the liquid ejecting unit; and a second connector that is provided in the liquid ejecting unit, and electrically connects the second wiring, in which the liquid ejecting unit is located between the first connector and the second connector.

Abstract: There is provided a liquid discharging apparatus including: a discharging portion which discharges liquid; a fixing portion which fixes the discharging portion; a circuit substrate for controlling discharge of the liquid; a head cover which covers the circuit substrate; and a covering portion which connects the fixing portion and the head cover to each other, and covers a part between the fixing portion and the head cover.

Abstract: A liquid ejecting apparatus includes a liquid ejecting unit that has an ejecting unit for ejecting liquid; a first wiring that transmits a driving signal for driving the ejecting unit to the liquid ejecting unit; a first connector that is provided in the liquid ejecting unit, and electrically connects the first wiring; a second wiring that transmits an ejecting control signal for controlling a supply of the driving signal to the ejecting unit to the liquid ejecting unit; and a second connector that is provided in the liquid ejecting unit, and electrically connects the second wiring, in which the liquid ejecting unit is located between the first connector and the second connector.

Abstract: A liquid ejecting apparatus includes a wiring substrate; and a liquid ejecting head, in which the liquid ejecting head includes a plurality of electrodes, an ejecting unit, and a non-ejecting unit, the wiring substrate is connected to the plurality of electrodes, the ejecting unit includes a driven element which is displaced due to a signal waveform applied to an electrode which is provided so as to correspond to at least one of the plurality of electrodes, a pressure chamber, and nozzles, the non-ejecting unit is provided so as to correspond to at least another electrode among the plurality of electrodes, and does not include at least one of the nozzle, the driven element, and the pressure chamber, and the signal waveform which is applied to an electrode which corresponds to the non-ejecting unit is designated by a dummy signal in the printing data.

Abstract: A liquid ejecting apparatus includes a first piezo-electric element; a first cavity; a first nozzle; a second piezo-electric element; a second cavity; a second nozzle; a drive signal generating section which generates a drive signal causing the first piezo-electric element or the second piezo-electric element to be displaced; a drive signal transmission path through which the drive signal is transmitted from the drive signal generating section to the first piezo-electric element or the second piezo-electric element; and a cable that forms at least a portion of the drive signal transmission path, the cable includes a drive signal transmitting wire which forms at least a portion of the drive signal transmission path and a shield wire in which potentials are fixed, and the drive signal transmitting wire has a characteristic impedance in a predetermined range.