A liquid ejecting system includes a head unit that includes a nozzle for ejecting a liquid, a pressure chamber communicating with the nozzle, and a drive element for applying pressure fluctuation to a liquid in the pressure chamber by supplying a drive pulse, an acquisition portion that acquires output information regarding a usage condition of the head unit, a first connection portion that is communicably connected to a server through a network, a first output portion that outputs the output information through the first connection portion, a first input portion to which input information regarding a waveform of the drive pulse supplied to the drive element is input through the first connection portion. A decision portion that decides the waveform of the drive pulse supplied to the drive element based on the input information.

A liquid ejecting system includes a head unit that includes a nozzle for ejecting a liquid, a pressure chamber communicating with the nozzle, and a drive element for applying pressure fluctuation to a liquid in the pressure chamber by supplying a drive pulse, a first connection portion that is communicably connected to a server through a network, a decision portion that decides a waveform of the drive pulse supplied to the drive element based on first input information, and a first input portion to which the first input information is input from the server through the first connection portion.

A marking system includes a valve body including an orifice plate including multiple orifices and multiple micro-valves. Each micro-valve includes an actuating beam movable from a closed position in which a corresponding one of the orifices is sealed by a portion of the actuating beam such that the micro-valve is closed, into a peak position in response to application of a control signal. A controller is configured to generate a control signal for each of the actuating beams, each control signal including a drive pulse having a predetermined voltage such that the actuating beam moves from the closed position into the peak position in which the corresponding orifice is open and returns to the closed position in a characteristic period, wherein the drive pulse has a duration that substantially corresponds to the characteristic period such that the actuating beam is in the closed position after the drive pulse is complete.

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.

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.

A liquid discharge apparatus includes a channel member defining a nozzle and a pressure chamber in communication with the nozzle; an actuator which applies pressure to liquid in the pressure chamber, and a controller which applies a drive signal to the actuator. The drive signal includes a rectangular main pulse and a rectangular cancel pulse applied after the main pulse within one discharge period. The actuator is driven by the drive signal in a pull-and-push method to discharge the liquid from the nozzle. If f (kHz) refers to a drive frequency of the drive signal, if Tw (μsec) refers to a time length from a falling edge of the main pulse to a rising edge of the cancel pulse, and if Tc (μsec) refers to a pulse width of the cancel pulse, then the following expression holds: 50≤f≤−11.3×(Tw+Tc)+120.

Provided is a jetting driver that can be used for various types of heads with minimal changes. The jetting driver includes: an image board receiving raw image data and generating image data by transforming the raw image data into a form suitable for a type of heads used; and an interface board physically separated from the image board, receiving the image data, and transmitting the image data to the heads through a plurality of channels.

In one example in accordance with the present disclosure, a method, system, and non-transitory machine-readable storage medium are described. A drop characteristic measurement of a drop of print fluid ejected from a printhead is detected. The drop characteristic measurement includes at least one of a drop velocity and a drop weight. The drop characteristic measurement is compared against a threshold value. When the drop characteristic measurement is beyond the threshold value, a remedial action is triggered.

A liquid discharge device including a first drive circuit, a second drive circuit, a third drive circuit, a fourth drive circuit, a connector coupled to a discharge head, and a substrate that includes a first wiring which couples the connector and the first drive circuit outputting a first drive signal, a second wiring which couples the connector and the second drive circuit outputting a second drive signal, a third wiring which couples the connector and the third drive circuit outputting a third drive signal, and a fourth wiring which couples the connector and the fourth drive circuit outputting a fourth drive signal, in which the first wiring is shorter than the second wiring, the third wiring, and the fourth wiring, and the fourth wiring is longer than the first wiring, the second wiring, and the third wiring.

A liquid ejecting apparatus is configured to drive a driving element in accordance with a driving signal applied by control of the controller. A driving signal includes a first ejection pulse for ejecting liquid, a second ejection pulse for ejecting liquid, and a non-ejection pulse for not ejecting liquid. The controller selects the first ejection pulse and the second ejection pulse to supply to the driving element, when a first amount of liquid is to be ejected from the nozzle in the unit period. The controller selects the non-ejection pulse and the second ejection pulse to supply to the driving element, when a second amount of liquid that is smaller than the first amount of liquid is to be ejected from the nozzle in the unit period. The second amount of liquid is larger than an amount of liquid ejected by only the second ejection pulse.