Seiko Epson Corporation

Nidec Sankyo Corporation

Yazaki Corporation

Masaaki Ando

Kaoru Koike

Toshio Kumagai

Hiroaki Kida

Yoshihiro Kobayashi

Mitsuaki Yoshizawa

Yusuke Mizutaki

Noritaka Mitsuo

Shinichi Yoshikawa

Yuji Kanazawa

Keitaro Nakano

Tadashi Takeda

Hitoshi Tsuchiya

Haruhisa Uezawa

Toshiyuki Yoda

Norihiro Maruyama

Yoshiyuki Suzuki

Goro Nakamura

Toru Saito

Jun Shimazaki

Shinya Komatsu

Masao Tsuchihashi

Takao Yamamoto

Tomoki Shinoda

Shinji Hatano

Ken Yamagishi

Kazuhito Hori

Toshio Arimura

Shogo Kasahara

Tsuyoshi Hayashi

Ken Inoue

Akira Mori

Toshifumi Tsuruta

Daiki Tatsuta

Junya Suzuki

Hironori Kurosawa

Masanobu Yamaguchi

Shunsuke Kuramata

Yuji Shingu

Tsuneo Sato

Hirobumi Mikami

Noburu Ashibe

Koji Kawatani

Yuu Akuzawa

A control method of a liquid ejection device having an ejection unit, and a maintenance unit for maintaining the ejection unit, the ejection unit having a first head having a first nozzle configured to eject the liquid, and a second head having a second nozzle configured to eject the liquid and a third nozzle configured to eject the treatment liquid, the maintenance unit having a first receiving portion configured to receive the liquid, and a second receiving portion configured to receive the treatment liquid, and the control method includes executing a first flushing in which the liquid is ejected from the first nozzle to the first receiving portion, executing a second flushing in which the liquid is ejected from the second nozzle to the first receiving portion, and executing a third flushing in which the processing liquid is ejected from the third nozzle to the second receiving portion.

Liquid ejection device and control method of liquid ejection device

Provided is a method of controlling a liquid ejecting device. The liquid ejecting device includes a liquid ejecting unit configured to eject a liquid containing an inorganic pigment from a nozzle provided at a nozzle surface, a wiper unit including a band-like member configured to absorb the liquid and a pressing unit configured to move the band-like member in a first direction, and a wiper moving unit configured to move the wiper unit in a second direction opposite to the first direction to wipe the nozzle surface using the band-like member. The method includes performing first wiping in which, to wipe the nozzle surface, the wiper moving unit moves the wiper unit at a first velocity while the pressing unit moves the band-like member at a first velocity.

Method of controlling a liquid ejecting device and liquid ejecting device

In an actuator, damper members which connect a movable member and a fixed member are arranged at two places between the end portion of the shaft of the movable member on an L1 side and the opening portion of the first holder of the fixed member and between the end portion of the shaft of the movable member on an L2 side and the opening portion of a second holder. Each of the damper members includes a gel damper member serving as a connection member which is continuously arranged in a gap in a radial direction between the movable member and the fixed member over the entire circumference. In the gel damper member, an inner circumferential portion is fixed to the shaft through a cylindrical first member, and an outer circumferential portion is fixed to the fixed member through a cylindrical second member.

Actuator

An actuator includes a support body, a movable body, a connection body connected with the support body and the movable body and provided with at least one of elasticity and viscoelasticity, and a magnetic drive mechanism structured to relatively move the movable body with respect to the support body. The connection body is disposed in a space in a radial direction between an inner side ring-shaped part provided in one of the movable body and the support body and an outer side ring-shaped part provided in the other of the movable body and the support body. The inner side ring-shaped part, the outer side ring-shaped part and the connection body structure a partition part which partitions an inside space of the case, and the partition part includes an air passage which is penetrated through the partition part in an axial line direction so that air resistance can be reduced.

Actuator with connection body having viscoelasticity and an air passage through the partition part

The actuator includes a magnetic drive mechanism to relatively move the movable body with respect to the support body. The magnetic drive mechanism has a magnet and a coil. The connecting element connected to the support body and the movable body is a viscoelastic member. The viscoelastic member has a temperature characteristic that a loss tangent (Tan &#x3b4;) thereof measured by a dynamic viscoelasticity measurement decreases as a temperature rises. When using a silicone gel as the connecting element, the decrease in the peak value of the acceleration of the movable body caused by the decrease in the current flowing through the coil is cancelled by the increase in the peak value of the acceleration of the movable body caused by the decrease in Tan &#x3b4; of the silicone gel. Therefore, the oscillation of the movable body is unchanged even if a temperature changes.

Actuator with a viscoelastic connecting element

A liquid ejecting unit includes: a liquid ejecting head; and a coupling member coupled to the liquid ejecting head, in which the liquid ejecting head has a first-coupling portion and a second-coupling portion, the liquid ejecting unit further includes: a first-attachment portion provided in a first-position of the coupling member; a second-attachment portion provided in a second-position of the coupling member, the second position being different from the first position; a first-elastic body; and a second-elastic body, and the first-elastic body biases the first-attachment portion or the first-coupling portion in a state in which the first-attachment portion is in contact with the first-coupling portion and the second-elastic body biases the second-attachment portion or the second-coupling portion in a state in which the second-attachment portion is in contact with the second-coupling portion, so that the coupling member is coupled to the liquid ejecting head.

Liquid ejecting unit and liquid ejecting apparatus

An ink jet recording method includes ejecting an ultraviolet-ray curable ink of which a viscosity at 28&#xb0; C. is 8 mPa&#xb7;s or more from a head to a recording medium, and curing the ultraviolet-ray curable ink attached to the recording medium, wherein, in the ejecting of the ultraviolet-ray curable ink, the ultraviolet-ray curable ink is heated such that a temperature of the ejected ultraviolet-ray curable ink becomes 28&#xb0; C. to 40&#xb0; C., and a viscosity of the ultraviolet-ray curable ink at the temperature is 15 mPa&#xb7;s or less.

Ink jet recording method, ultraviolet-ray curable ink, and ink jet recording apparatus

A liquid ejecting apparatus includes a liquid ejector having a nozzle surface having nozzles, a cap configured to perform capping when coming into contact with the nozzle surface, a capping mechanism configured to move the cap between a capping position for the capping and a separated position separated from the nozzle surface, a cleaning-liquid supply mechanism configured to supply a cleaning liquid into the cap, and a facing portion configured to face a lip portion of the cap coming into contact with the nozzle surface in the capping, in which the lip portion and the facing portion are made to face each other and a predetermined space is provided between the lip portion and the facing portion for the cleaning liquid supplied in the cap to come into contact with the facing portion.

Liquid ejecting apparatus and method of maintaining liquid ejecting apparatus

A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a first liquid from a nozzle, a liquid receiving portion configured to receive, in a state where a second liquid is accommodated in the liquid receiving portion, for a purpose of maintenance of the liquid ejecting portion, the first liquid discharged from the nozzle, a maintenance portion that maintains a liquid surface of a liquid accommodated in the liquid receiving portion at an upper limit position, and a discharge portion configured to discharge, from a discharge port open to the liquid receiving portion, the liquid accommodated in the liquid receiving portion. The discharge port is positioned below the upper limit position.

Liquid ejecting apparatus and maintenance method for liquid ejecting apparatus

A cap includes a lip portion, and an inner bottom wall and an atmosphere communication wall that, when an opening with the lip portion as an edge is covered by a member, form a recessed portion that forms a space with the member, the atmosphere communication wall being provided at a position between the opening and the inner bottom wall in a depth direction of the recessed portion, the atmosphere communication wall having a communication port of an atmosphere communication portion that opens the space to the atmosphere, the communication port being formed in the atmosphere communication wall toward the opening.

Cap and liquid ejecting apparatus

A planetary gear speed reduction device may include a magnetic sun gear; a plurality of magnetic planetary gears which each revolve around the magnetic sun gear while rotating; and a magnetic internal gear arranged surrounding the multiple magnetic planetary gears from an outer circumferential side. An outside diameter of the magnetic sun gear and an outside diameter of the magnetic planetary gears may be equal.

Planetary gear speed reduction device and driving mechanism

A tubular motor may include a tubular case, a motor unit provided inside the case, and a first planetary gear unit placed inside the case at an output side in the motor shaft direction with respect to the motor unit. On the motor unit, a concave part may be formed in an output side end surface of an output side end plate section that supports a rotor, at an output side of the rotor. On the first planetary gear unit, a planetary carrier may include a supporting plate that overlaps with planetary gears at an counter-output side in order to support the planetary gears from the counter-output side. The first planetary gear unit may be immediately adjacent to the output side end plate section at an output side.

Tubular motor, control method for brushless motor, and motor equipped with brake

An ink jet method includes a dissolved gas amount control step of controlling a dissolved gas amount of a radiation curable ink jet composition by a dissolved gas amount control unit at least a part of a flow path connecting a container receiving the ink jet composition and an outlet of an ink jet head to which the ink jet composition is supplied from the container; and an ejection step of ejecting the ink jet composition from the outlet of the ink jet head. The ink jet composition contains a polymerizable compound and a polymerization initiator, the dissolved gas amount control unit includes a member formed from an adhesive, and an absolute value (|(&#x3c3;1)&#x2212;(&#x3c3;2)|) of the difference between a mass average SP value (&#x3c3;1) of the polymerizable compound and a SP value (&#x3c3;2) of the adhesive, each of which is calculated by Small's formula, is 1.0 or more.

Ink jet method and ink jet apparatus

A gear pump includes a pump casing and a gear assembly. The gear assembly includes a driving gear, a driven gear, a driving gear shaft, a driven gear shaft, and a bearing frame. The bearing frame includes a frame main body, a pair of driving side bearing portions, and a pair of driven side bearing portions. The frame main body has a pair of bearing support portions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions. The bearing support portions and the connecting portion are integrated together as a one-piece member.

Gear pump and printing apparatus provided with same

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Matsumoto, Japan

Masaaki Ando