Abstract: A liquid discharge method of discharging a liquid from a nozzle of a liquid discharge head by applying a drive pulse to a drive element of the liquid discharge head includes an acquisition step of acquiring a recording condition, and a driving step of applying the drive pulse to the drive element. The drive pulse includes a first potential, a second potential different from the first potential, and a third potential different from the first potential and the second potential. The second potential is to be applied after the first potential, and the third potential is to be applied after the second potential. In the liquid discharge method, in the driving step, the drive pulse in which a time of the second potential varies depending on the recording condition acquired in the acquisition step is applied to the drive element.

Abstract: A drive circuit for charging a printhead for ejecting drops of ink is provided, the printhead having a capacitance. The drive circuit comprises a power supply comprising a first connection and a second connection. An inductor is connected to the first connection of the power supply, wherein the inductor is connected to a first drive connection of the printhead to provide a charge path for current to charge the capacitance. The second connection of the power supply is connected to a second drive connection of the printhead. The drive circuit also comprises means for applying a plurality of charging voltage pulses to the inductor to provide a single charge of the capacitance for a single cycle of ink ejection from the printhead. A method of operating the drive circuit is also provided.

Abstract: A liquid ejection device includes a liquid supply unit, an array of nozzles arranged in a matrix and through which liquid is ejected, actuators each connected to one of the nozzles, and a circuit configured to output signals to the actuators according to delay times that are predetermined in a matrix corresponding to the matrix of the array. The delay times include (k+l?1) or more different delay times where the matrix thereof has k columns and l rows. The matrix is defined such that a difference of two adjacent delay times in each of column and row directions is an odd multiple of a half cycle of a natural vibration period of the liquid, and between two adjacent columns and rows, two or more different delay time differences exist between each pair of corresponding delay times of the adjacent columns and rows, respectively.

Abstract: Printheads and methods of operation. In one embodiment, a printhead includes a plurality of jetting channels comprising first jetting channels configured to jet a first print fluid and second jetting channels configured to jet a second print fluid, and a driver circuit communicatively coupled to actuators of the jetting channels. The driver circuit receives a drive waveform comprising first jetting pulses provisioned for the first print fluid and second jetting pulses provisioned for the second print fluid, and gating signals comprising a first active gating signal designated for jetting the first print fluid and a second active gating signal designated for jetting the second print fluid. The driver circuit selectively applies the first jetting pulses to actuators of the first jetting channels based on the first active gating signal, and selectively applies the second jetting pulses to actuators of the second jetting channels based on the second active gating signal.

Abstract: 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.

Abstract: 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.

Abstract: A liquid discharge head includes: a channel substrate having a nozzle and a channel communicating with the nozzle; a driving element arranged on the channel substrate; and a driving signal generating circuit which generates a driving signal to drive the driving element. The driving signal includes a non-discharge driving signal by which the driving element is driven so that liquid in the channel is not discharged from the nozzle. The non-discharge driving signal includes at least one first slight-vibration waveform and at least one second slight-vibration waveform. The first slight-vibration waveform is a waveform by which the driving element is displaced by a first displacement amount. The second slight-vibration waveform is a waveform by which the driving element is displaced by a second displacement amount that is larger than the first displacement amount. The at least one second slight-vibration waveform follows after the at least one first slight-vibration waveform.

Abstract: An electronic device includes a switching element, a first common-electrode wiring, at least a part of the first common-electrode wiring being covered with the switching element, a plurality of second common-electrode wirings branched from the part of the first common-electrode wiring covered with the switching element, a plurality of individual power-output terminals arranged in a row in the switching element, and a plurality of individual-electrode wirings arranged in a row, the plurality of individual-electrode wirings being connected to the plurality of individual power-output terminals, respectively. Each of the plurality of second common-electrode wirings is disposed between the plurality of individual-electrode wirings.

Abstract: A liquid discharge apparatus includes a liquid discharger, a discharge receptacle, and circuitry. The liquid discharger includes a nozzle configured to discharge liquid. The discharge receptacle is configured to receive the liquid discharged from the liquid discharger. The circuitry is configured to control a flushing operation of the liquid discharger. The circuitry is configured to cause the liquid discharger to perform flushing to the discharge receptacle and a sheet to which the liquid is applied, with a first flushing amount and a second flushing amount different from the first flushing amount, respectively.

Abstract: A liquid jet head and so on capable of reducing both of a manufacturing cost and power consumption are provided. The liquid jet head according to an embodiment of the present disclosure is provided with a jet section and at least one drive board. The drive board is provided with a first input terminal and a second input terminal, a plurality of drive devices, a plurality of transmission lines, and a plurality of terminal resistors. The drive devices each have a first input/output section and a second input/output section. The plurality of drive devices include a first drive device and a second drive device. The plurality of transmission lines include a first transmission line, a second transmission line, and at least one third transmission line. The plurality of termination resistors include a first termination resistor, a second termination resistor, and a third termination resistor.

Abstract: In the print data for a nozzle of a printer, white dots are replaced by pre-ejection pulses. One or more repetitions of the pre-ejection pulses may be inserted into the print data, depending on the actual print speed of the printer, to determine print speed-dependent print data with which the nozzle is activated to print a print image with high print quality.

Abstract: Provided is a print system including: a moving body supporting a can body and moving; an annular moving route that is an annular-shaped moving route, along which the moving body moves, including at least one of a linear moving route extending from an upper side toward a lower side and is formed linearly, and a linear moving route extending from the lower side toward the upper side and is formed linearly; and an image forming unit performing image formation onto the can body supported by the moving body.

Abstract: There are provided a liquid jet head and so on capable of enhancing the convenience. The liquid jet head according to an embodiment of the present disclosure includes a jet section, a plurality of drive boards, at least one drive device, a waveform setting section, a control switch section, an external control line in which first control communication is performed, an internal control line in which second control communication is performed, and a plurality of drive control lines in which third control communication is individually performed. The waveform setting section generates second waveform configuration information for setting the drive waveform based on first waveform configuration information transmitted from the outside of the liquid jet head using the first control communication.

Abstract: Wall surfaces of the nozzle channel include a first wall surface which extends in the first direction and in which the nozzle is provided and a second wall surface which extends in the first direction and is opposite to the first wall surface, wall surfaces of the first communication channel include a third wall surface which extends in the second direction and a distance from which to the nozzle in the first direction is longest and a fourth wall surface which extends in the second direction and is opposite to the third wall surface, and a fifth wall surface which extends in a third direction set between the first direction and the second direction is provided between the second wall surface and the fourth wall surface.

Abstract: A liquid ejection apparatus includes a liquid ejection unit with a plurality of nozzles and a corresponding plurality of actuators. A drive waveform generation circuit is configured to generate drive waveforms having different drive timings. An actuator drive circuit is configured to apply a first drive waveform to a first actuator in a liquid ejection operation and a second drive waveform to a second actuator in the liquid ejection operation during which the first and second actuators are to be driven at a same nominal time. The first driving waveform is different from the second drive waveform, and the first actuator is at a position electrically closer along a predetermined direction to a power supply electrode than is the second actuator.

Abstract: In a control part of a printer, a main area information holding part holds information prescribing a plurality of main areas which are obtained by dividing at least a portion in a facing surface of a head into a plurality of areas in a predetermined direction. A sub-area information holding part holds information prescribing a plurality of sub-areas which are obtained by dividing the main area into a plurality of areas in the predetermined direction. The initial setting part designates the settings relating to corrections in units of the main areas. In a case where correction amounts of darkness based on the initial setting are different between a first main area and a second main area which adjoin each other among the plurality of main areas, the re-setting part maintains or redesignates the settings relating to corrections designated with respect to the first main area in units of the sub-areas.

Abstract: A die for a printhead is described herein. The die includes a number of fluid feed holes disposed in a line parallel to a longitudinal axis of the die, wherein the fluid feed holes are formed through a substrate of the die. The die includes a number of fluidic actuators, proximate to the fluid feed holes, to eject fluid received from the fluid feed holes. Circuitry on the die operates the fluidic actuators, wherein traces are provided in layers between adjacent fluid feed holes, connecting circuitry on each side of the fluid feed holes.

Abstract: A liquid discharge head includes an individual liquid chamber having a nozzle through which a liquid is discharged in a liquid discharge direction, a piezoelectric element facing the individual liquid chamber, a first groove adjacent to the piezoelectric element in a nozzle array direction, a dummy individual liquid chamber without any nozzle, a dummy piezoelectric element facing the dummy individual liquid chamber, and a second groove adjacent to the dummy piezoelectric element in the nozzle array direction. The first groove extends in the liquid discharge direction. The second groove has a shorter length in the liquid discharge direction than the first groove.

Abstract: An image forming apparatus includes: a piezoelectric element with a common electrode on one side and an individual electrode on another side; a nozzle; and circuitry. The circuitry selects one from drive signals and supplies the one drive signal to the piezoelectric element via the individual electrode, to discharge a droplet through the nozzle to form an image. Each drive signal includes waveform pulses including a main pulse that rises in a slope shape during a rising time and finishes rising at an end time. The circuitry generates the drive signals so that the end time of a less influential drive signal other than a most influential drive signal falls within a range of the rising time of the main pulse of the most influential drive signal; selects the one drive signal based on an image to be formed; and supplies the one drive signal to the piezoelectric element.

Abstract: A liquid discharge method of discharging a liquid from a nozzle of a liquid discharge head by applying a drive pulse to a drive element of the liquid discharge head includes an acquisition step of acquiring a recording condition, and a driving step of applying the drive pulse to the drive element. The drive pulse includes a first potential, a second potential different from the first potential, and a third potential different from the first potential and the second potential. The second potential is to be applied after the first potential, and the third potential is to be applied after the second potential. In the liquid discharge method, in the driving step, the drive pulse having the first potential that varies depending on the recording condition acquired in the acquisition step is applied to the drive element.