A liquid discharge apparatus includes a liquid discharge unit, a position detector, and circuitry. The liquid discharge unit has a liquid discharge port and discharges a liquid from the liquid discharge port toward an object. The position detector detects a position of the liquid discharge unit relative to the object. The circuitry calculates a movement trajectory of the liquid discharge unit based on the position of the liquid discharge unit detected by the position detector. Further, the circuitry performs a first operation of causing the liquid discharge unit to move along the movement trajectory without discharging the liquid and performs a second operation of causing the liquid discharge unit to move along the movement trajectory while discharging the liquid to the object after the first operation.

An example input voltage agnostic fluidic device may include a level shifter to adjust an input voltage of control signals received at an input interconnect to a voltage level that is within operational thresholds of on-chip devices of the input voltage agnostic fluidic device.

There is provided a method for controlling driving of an inkjet head including recording elements each including a nozzle and a driving element. The method includes a pulse width setting step. In this step, when a predetermined number of ink droplets ejected according to the predetermined number of driving pulses are made to land in the same pixel range, the predetermined number of first driving pulses each having a pulse width longer than a reference pulse width and the predetermined number of second driving pulses each having a pulse width shorter than the reference pulse width are combined for each of the recording elements and obtained combinations are respectively output to the recording elements. The predetermined number is two or more.

A piezoelectric device includes a substrate on which a plurality of recesses are arranged in a first direction, a vibration plate, and a piezoelectric actuator having a first electrode, a second electrode and a third electrode, a fourth electrode, and a piezoelectric layer, in which a plurality of active portions are provided, the second electrode and the third electrode are provided from an edge of a region facing a recess to an outside of the recess, the first electrode is formed between the second electrode and the third electrode, the second electrode, the third electrode, and the fourth electrode configure common electrodes for the plurality of active portions, and the first electrode configures an individual electrode provided independently for each of the active portions.

An integrated circuit for a fluidic die including an address bus to communicate a set of addresses, a first group of die configuration functions including a first address driver to drive a first portion of an address of the set of addresses on the address bus, a second group of die configuration functions including a second address driver to drive a second portion of the address of the set of addresses on the address bus, and an array of fluid actuating devices addressable by the set of addresses communicated via the address bus.

A liquid ejecting apparatus includes a drive element, and a drive circuit that outputs a drive signal that drives the drive element, wherein the drive circuit includes a modulation circuit that modulates a base drive signal to output a modulation signal, an amplifier circuit that amplifies the modulation signal to output an amplified modulation signal, a demodulation circuit that demodulates the amplified modulation signal to output the drive signal, and a substrate on which the modulation circuit, the amplifier circuit, and the demodulation circuit are provided, wherein the substrate includes a base material includes a metal and a first layer laminated on the base material, wherein the first layer includes a first propagation wire through which at least one of the amplified modulation signal and the drive signal propagates, and wherein the base material has a thickness greater than a thickness of the first layer.

A die for a printhead is provided in examples. The die includes a number of fluidic actuator arrays. A data block is associated with each of the plurality of fluidic actuator arrays. The die includes an interface comprising a data pad and a clock pad, wherein a data bit value present at the data pad is loaded into a first data block corresponding to a first fluidic actuator array on a rising clock edge and loaded into a second data block corresponding to a second fluidic actuator array on a falling clock edge.

A liquid discharging apparatus includes: a channel unit having a nozzle and an individual channel; an actuator applying pressure to liquid in the individual channel to discharge the liquid from the nozzle; a driving circuit electrically connected to the actuator and supplying driving signal to the actuator; and a controller. In a case of determining that a single-sided recording is to be executed, the controller supplies the driving signal corresponding to each of gradation values for each of pixels when discharging the liquid toward one of a first surface and a second surface of a recording medium; in a case of determining that the double-sided recording is to be executed, the controller supplies the driving signal corresponding to each of the gradation values for each of the pixels when discharging the liquid toward the first surface and when discharging the liquid toward the second surface.

A print head having an ejection portion that ejects a liquid includes a determination portion that executes a first determination process of determining whether or not a first error occurs in which replacement of the print head or replacement of a hardware coupled to the print head is required and a second determination process of determining whether or not a second error occurs in which neither the replacement of the print head nor the replacement of the hardware coupled to the print head is required, and a light emitting portion that emits light according to a result of determination in the determination portion.

There is provided a liquid discharge apparatus including: an amplifier circuit that outputs an amplified modulated signal by driving a transistor; a demodulation circuit that includes an inductance element and outputs the driving signal, in which the inductance element includes a first side portion provided with a first terminal, a second side portion positioned facing the first side portion and provided with the second terminal, a third side portion intersecting with the first side portion and the second side portion, a lead member coupled to the first terminal and the second terminal, and a shortest distance between the transistor and the third side portion is equal to or shorter than a shortest distance between the transistor and the first side portion, and is equal to or shorter than a shortest distance between the transistor and the second side portion.