Seiko Epson Corporation

Yuki Watanabe

Akinori Taniuchi

Akira Miyagishi

Toru Kashimura

Eiju Hirai

Hiroaki Okui

Hirofumi Teramae

Madoka Goi

Madoka Ito

Tom Kashimura

A method of manufacturing a liquid ejecting apparatus including a liquid ejecting head that includes a number N of nozzle arrays that are two or more nozzle arrays includes selecting one ejection amount identification information piece from among the plurality of ejection amount identification information pieces according to a one grouping pattern in which the nozzle arrays are grouped so that the nozzle arrays corresponding to the drive element to which the drive signal generated by each of the one or more drive signal generating circuits is commonly supplied are grouped into the same group, and setting, based on the one ejection amount identification information piece, a number of times that the liquid is ejected from the number N of nozzle arrays onto the medium per unit area.

Method of manufacturing liquid ejecting apparatus

A liquid discharge apparatus includes: a plurality of dischargers including a nozzle, a pressure chamber, and a drive element to discharge liquid in the pressure chamber through the nozzle; and a driver that generates, for each of the plurality of dischargers, an individual drive signal to drive the drive element based on a plurality of drive signals including a first drive signal having a first contraction waveform in which an electrical potential changes to cause a volume of the pressure chamber to contract, and a second drive signal having a second contraction waveform in which an electrical potential changes to cause the volume of the pressure chamber to contract. In one cycle, a center of one of a time period of the first contraction waveform and a time period of the second contraction waveform is located in the other of the time periods.

Liquid discharge apparatus, and method of controlling the same

A liquid ejection apparatus is configured to control a supply of a drive signal to a drive element by a controller so that a target period is either an ejection period or a non-ejection period based on print data. The drive signal includes an ejection pulse and a non-ejection pulse. The controller: does not supply the non-ejection pulse to the drive element when the target period is the non-ejection period and an elapsed time length from the last ejection period is less than the predetermined time length, and supplies the non-ejection pulse to the drive element when the target period is the non-ejection period and the elapsed time length is equal to or longer than the predetermined time length. The predetermined time length is an integral multiple or more of ½ of a natural vibration cycle of a meniscus of a liquid in the nozzle.

Liquid ejection apparatus

A width of the first nozzle channel in the first direction is larger than a width of the first communication channel in the second direction and a width of the first nozzle channel in a third direction intersecting the first direction and the second direction is smaller than a width of the first communication channel in the third direction.

Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting apparatus includes a first ejector; a common driving signal generator configured to generate a common driving signal having a pressure generation pulse including a first element maintained at a first potential, a second element succeeding the first element and maintained at a second potential different from the first potential, and a third element succeeding the second element and maintained at a third potential different from the second potential; a selection control signal generator configured to generate a selection control signal including a first pulse and a second pulse succeeding the first pulse in a time period corresponding to the second element; and a driving waveform selector configured to supply the second potential of the second element to the pressure generating element of the first ejector at the time of the generation of a pulse selected from the first and second pulses of the selection control signal.

Liquid ejecting apparatus

A length of a path between the input section and the third energy generation element in the wiring section is shorter than a length of a path between the input section and the first energy generation element in the wiring section and shorter than a length of a path between the input section and the second energy generation element in the wiring section.

A liquid ejecting apparatus includes a liquid discharging head having a first nozzle and a first piezoelectric element, a first driving signal generating circuit, a substrate on which the first driving signal generating circuit is provided, a first wire, and a first coil, in which the first driving signal generating circuit generates a first driving signal, the first piezoelectric element is driven based on the first driving signal to discharge liquid from the first nozzle, and the first wire is electrically coupled to the first driving signal generating circuit and propagates the first driving signal to the first piezoelectric element through the first coil.

Liquid ejecting apparatus and driving circuit

A liquid ejecting apparatus includes a liquid discharging head having a nozzle and a piezoelectric element, a driving signal generating circuit, a reference voltage signal generating circuit, a substrate on which the driving signal generating circuit and the reference voltage signal generating circuit are provided, a first wire, a second wire, and a coil, in which the driving signal generating circuit generates a driving signal, the reference voltage signal generating circuit generates a reference voltage signal, the piezoelectric element is driven based on the driving signal supplied to one end of the piezoelectric element and the reference voltage signal supplied to the other end of the piezoelectric element, the first wire propagates the driving signal to the one end, and the second wire propagates the reference voltage signal to the other end through the coil.

Growing community of inventors

Shiojiri, Japan

Yuki Watanabe