Seiko Epson Corporation

Tomohiro Sayama

Masako Fukuda

Toru Matsuyama

Hironori Sato

Masashi Kamibayashi

Yoshihiro Watanabe

Chikara Kojima

Koji Ohashi

Shinya Komatsu

Nagatoshi Kasahara

Kanechika Kiyose

Tomoaki Takahashi

Masato Murayama

Takahiro Katakura

Tsuyoshi Kitahara

Satoru Hosono

Takahiro Kamijo

Tomohide Onogi

Makoto Furuhata

Shuji Yonekubo

Kenji Otokita

Hiroshi Mukai

Hironori Suzuki

Satoshi Kimura

Eiji Osawa

Junhua Chang

Shoki Kasahara

Yasuyuki Matsumoto

Toshihiro Shinbara

Hirofumi Teramae

Seiji Izuo

Shinichi Tsubota

Katsuhiro Imai

Goki Hiramoto

Toru Nagate

A piezoelectric actuator includes a vibrating plate including a first surface that closes an opening provided in a substrate and a second surface in which a plurality of piezoelectric elements is provided, a suppression part configured to suppress a vibration of the vibrating plate, and a first wall and a second wall protruding from the first surface to the opening. When a portion where the first electrode, the piezoelectric layer and the second electrode overlap each other is an active part of the piezoelectric element, the first wall and the second wall are provided to sandwich the active part in plan view from the stacking direction of the first electrode, the piezoelectric layer and the second electrode, and the second wall is different from the first wall at least in one of the width, height, length and physical property.

Piezoelectric actuator, ultrasound element, ultrasound probe, ultrasound device, and electronic device

Provided is an ultrasonic device including a substrate and a vibration plate provided on the substrate and having one or more vibrators configured to generate an ultrasonic wave by vibration. The vibration plate has a movable portion provided with the vibrator and configured to vibrate accompanying with the vibration of the vibrator, and a fixed portion fixed to the substrate. A vibration frequency of a reflected wave based on a wave transmitted from the movable portion and received by the movable portion is outside a vibration frequency band region of the vibrator.

Ultrasonic device and ultrasonic sensor

An MEMS device includes: a first member; a second member forming a sealed space with the first member therebetween; and a third member disposed between the first member and the second member and joined to the first member and the second member, in which the third member has lower rigidity than rigidity of the first member and the second member, and the third member is provided with a communication portion that establishes communication between the sealed space and an external space.

MEMs device and electronic device

A control method of a liquid discharging apparatus includes: a discharge inspection step of inspecting discharge abnormality of a nozzle by a discharge inspection mechanism; a remaining oscillation inspection step of inspecting oscillation of the ink inside a pressure chamber by a oscillation inspection circuit when the discharge abnormality is detected; a first correction step of performing correction which corresponds to the attachment of the resin inside the pressure chamber with respect to the driving pulse when abnormality is detected in oscillation; a re-discharge inspection step of inspecting the discharge abnormality of the nozzle after the first correction step; and a second correction step of performing the correction which corresponds to the attachment of the resin inside the nozzle with respect to the driving pulse when the abnormality is not detected in the oscillation in the oscillation inspection step or when the discharge abnormality is detected in the re-discharge inspection step.

Liquid discharging apparatus, control method of liquid discharging apparatus, device driver, and printing system

A printing device includes a paper medium print mode configured to execute printing on a paper medium; and a textile print mode configured to execute printing on a fabric medium, types of inks used in the textile print mode being greater in number than types of inks used in the paper medium print mode.

Printing device, control method for printing device, and control program for printing device

A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid from a nozzle toward a target which is positioned away from a nozzle forming surface where the nozzle is formed; a wiping member that is capable of wiping the nozzle forming surface; a movement mechanism that relatively moves the liquid ejecting head and the wiping member when wiping is carried out; and a control portion that controls the movement mechanism so as to cause a relative moving velocity between the liquid ejecting head and the wiping member to be lower when wiping is carried out in a case where the liquid is ejected at a second distance of which an opposing distance between the nozzle forming surface and the target is longer than a first distance compared to a case where the liquid is ejected at the first distance of the opposing distance.

Liquid ejecting apparatus and maintenance method

A printing device includes a paper medium print mode configured to execute printing on a paper medium; and a textile print mode configured to execute printing on a fabric medium, a print speed in the textile print mode being slower than a print speed in the paper medium print mode.

A printing device includes a paper medium print mode configured to execute printing on a paper medium; and a textile print mode configured to execute printing on a fabric medium, an ink weight required for forming a maximum dot in the textile print mode being less than an ink weight required for forming a maximum dot in the paper medium print mode.

A printing device includes a paper medium print mode configured to execute printing on a paper medium; and a textile print mode configured to execute printing on a fabric medium, a print resolution in the textile print mode being lower than a print resolution in the paper medium print mode.

A printing apparatus includes a piezoelectric element; a cavity whose internal volume is increased or decreased by displacement of the piezoelectric element; a nozzle connected to the cavity and ejecting the ink as ink droplets onto a print medium by increasing or decreasing of the internal volume of the cavity; a printing mode receiver receiving selection of at least one photographic paper printing mode for printing onto photographic paper and at least two plain paper printing modes for printing onto plain paper from among printing modes; and a control unit controlling a meniscus position in the nozzle to be separated further from an orifice surface of the nozzle when the selection of one plain paper printing mode from among the at least two plain paper printing modes is received by the printing mode receiver than when the selection of the photographic paper printing mode is received.

Printing apparatus and control method and program thereof

A liquid ejecting apparatus has a liquid ejecting head capable of ejecting an ink containing thermoplastic resin particles from nozzles to a landing target and a heating unit of heating ink droplets landing on the landing target, in which the heating unit heats the ink droplets at a filming control temperature according to the minimum film forming temperature at which the filming of the surface of the ink droplets starts to thereby control the filming degree of the surface of the ink droplets.

Liquid ejecting apparatus

A minute vibration driving signal is configured to include a first signal section which generates a plurality of minute vibration driving pulses, and a second signal section which maintains potential to a constant level without generating the minute vibration driving pulse, and can select a first mode in which duration of the second signal section is set to Twhich is longer than duration Tof the first signal section, and a second mode in which duration of the second signal section is set to Twhich is longer than T

Liquid ejecting apparatus and controlling method thereof

A liquid ejecting apparatus includes a liquid ejecting head, a driving signal generator which generates a micro vibration pulse, a controller which controls applying of the micro vibration pulse to a pressure generation unit, a cap which includes a sealing space not including an absorber inside, and seals a nozzle in the sealing space by being in close contact with the liquid ejecting head, and a suction unit which sucks liquid from a nozzle, in which micro vibration driving which causes liquid in the pressure chamber corresponding to a nozzle to be subjected to a micro vibration by applying at least one or more micro vibration pulses to the pressure generation unit corresponding to the nozzle in which a cleaning operation including a suction operation using the suction unit is performed is intermittently performed.

Liquid ejecting apparatus and control method of liquid ejecting apparatus

An ink jet recording apparatus has a first discharge port array in which discharge ports of a plurality of nozzles which discharge an ink composition containing an inorganic pigment are disposed side by side, a second discharge port array in which discharge ports of a plurality of nozzles which discharge an ink composition containing a coloring material other than the inorganic pigment are disposed side by side, a nozzle plate having the first discharge port array and the second discharge port array, a liquid repellent film provided on the nozzle plate, a wiping member which wipes the surface of the nozzle plate and has absorbability of the ink composition, in which, in a series of operations in which the surface of the nozzle plate is wiped by the wiping member, the second discharge port array is wiped in priority to the first discharge port array.

Growing community of inventors

Matsumoto, Japan

Tomohiro Sayama