公开(公告)号：US10583676B2

公开(公告)日：2020-03-10

申请号：US16176648

申请日：2018-10-31

Applicant: SII Printek Inc.

Inventor： Yuki Yamamura ,  Masaru Midorikawa ,  Naohiro Tomita ,  Shunsuke Yamazaki ,  Shuji Sato

IPC: B41J2/14 ,  B41J29/377 ,  B41J2/175

Abstract: A liquid jet head and a liquid jet recording device capable of accurately detecting the temperature of the ink are provided. A liquid jet head according to an embodiment of the disclosure includes a flow channel member provided with a flow channel of a liquid, and having a high heat conduction part disposed so as to have contact with the liquid flowing inside the flow channel, and a low heat conduction part having lower thermal conductivity than thermal conductivity of the high heat conduction part, a temperature detection element disposed outside the flow channel, and attached to the high heat conduction part, and a liquid jet section from which the liquid is jetted.

公开(公告)号：US10513117B2

公开(公告)日：2019-12-24

申请号：US15924695

申请日：2018-03-19

Applicant: SII Printek Inc.

Inventor： Hitoshi Nakayama ,  Takeshi Sugiyama ,  Daichi Nishikawa ,  Eriko Maeda

IPC: B41J2/14 ,  B41J2/16

Abstract: According to an embodiment, an ink jet head (liquid ejecting head) includes an actuator plate and a cover plate (see FIG. 8). As illustrated in FIG. 1, channel grooves for a discharge channel (ejection channel) and a non-discharge channel (non-ejection channel) in a Z-direction are formed on a front surface of the actuator plate, so as to be alternately arranged in an X-direction, by cutting with a dicing blade or the like. The discharge channel and the non-discharge channel are formed to have a groove width W of smaller than 70 μm, in order to correspond to high density of nozzles. In the embodiment, the discharge channel and the non-discharge channel are formed to have a groove width of 55 μm, 50 μm, or 40 μm, for example.

公开(公告)号：US10350889B2

公开(公告)日：2019-07-16

申请号：US15855138

申请日：2017-12-27

Applicant: SII Printek Inc.

Inventor： Daiki Irokawa

IPC: B41J2/14 ,  B41J2/045

Abstract: There are provided a liquid jet head and a liquid jet recording device each capable of appropriately cutting off the liquid column formed immediately after being jetted from the jet hole to prevent the satellite droplet from generating, and further achieving easier maintenance of the jet hole part. The liquid jet head includes a drive actuator, a jet hole plate, and a flow channel operating actuator. The drive actuator applies a pressure variation to a liquid filled therein. The jet hole plate is disposed on a downstream side of the drive actuator and adapted to jet the liquid having flown out from the drive actuator from the jet hole to the outside of the drive actuator. The flow channel operating actuator is disposed between the drive actuator and the jet hole plate, provided with a communication section adapted to communicate the drive actuator and the jet hole with each other, and has a configuration capable of performing a displacing operation on at least a part of the peripheral edge part of the communication section.

公开(公告)号：US20190143684A1

公开(公告)日：2019-05-16

申请号：US16187023

申请日：2018-11-12

Applicant: SII Printek Inc.

Inventor： Shutaro YAMAMOTO ,  Daichi NISHIKAWA ,  Emiko OSAKA

IPC: B41J2/14 ,  B41J2/045

Abstract: There are provided a liquid jet head and a liquid jet recording device capable of enhancing the reliability. A liquid jet head according to an embodiment of the disclosure is a liquid jet head adapted to jet a liquid including an actuator plate having a plurality of ejection grooves each filled with the liquid, and a nozzle plate having a plurality of nozzle holes individually communicated with the respective ejection grooves, formed so as to have a profile smaller than a profile of the actuator plate, and bonded to the actuator plate so as to cover the plurality of ejection grooves, wherein a predetermined mark with which a position of the nozzle plate with respect to the actuator plate is checked is formed in an area outside a part corresponding to an outer periphery of the nozzle plate on a bonding surface of the actuator plate with the nozzle plate.

公开(公告)号：US10272681B2

公开(公告)日：2019-04-30

申请号：US15273308

申请日：2016-09-22

Applicant: SII Printek Inc.

Inventor： Daichi Nishikawa ,  Yoshinori Domae

IPC: B41J2/14

Abstract: A liquid jet head includes an actuator plate on which are formed ejection channels which extend in a channel extending direction and are filled with ink, and dummy channels which extend in the channel extending direction and are not filled with ink. A nozzle plate is laminated on the actuator plate and includes nozzle holes each communicating with a corresponding ejection channel at a central part in the channel extending direction of the ejection channel. The actuator plate includes a first channel row and a second channel row each of which includes the ejection channels and the dummy channels alternately arranged side by side in the X direction, the first and second channel rows being spaced apart in the channel extending direction. The ejection channels and the dummy channels are each symmetric with respect to a plane that passes through the center in the channel extending direction and perpendicular to the channel extending direction.

公开(公告)号：US20190009532A1

公开(公告)日：2019-01-10

申请号：US16029069

申请日：2018-07-06

Applicant: SII Printek Inc.

Inventor： Takanori KOYANO ,  Kazuyoshi TOMINAGA ,  Atsushi KOZUKI ,  Kenji SUZUKI ,  Masaki MIYAGI ,  Yuichiro HAMANO

IPC: B41J2/055 ,  B41J2/175 ,  B41J2/14

Abstract: There are provided a flow channel member, a liquid jet head, and a liquid jet device each capable of achieving thickness reduction while ensuring the effective area of a filter. There is included a first flow channel plate provided with a first ink flow channel adapted to communicate an ink tank and a first head chip with each other, the flow channel plate is disposed in a state in which a thickness direction of the flow channel plate crosses a gravitational direction, the first ink flow channel includes a filtration flow channel through which ink flows along the thickness direction of the first flow channel plate, and in which a main filter is disposed, and an upstream flow channel which is communicated with an upstream end of the filtration flow channel, and through which the ink flows along a surface direction of the first flow channel plate, and a reservoir wall part is formed in a part located on a downstream side of the main filter on an inner surface of the filtration flow channel, the reservoir wall part separating between the filtration flow channel and a downstream flow channel, and having a communication flow channel adapted to communicate the filtration flow channel and the downstream flow channel with each other in upper end parts in the gravitational direction.

公开(公告)号：US10173425B2

公开(公告)日：2019-01-08

申请号：US15702236

申请日：2017-09-12

Applicant: SII Printek Inc.

Inventor： Daiki Irokawa

IPC: B41J2/14 ,  B41J2/16

Abstract: A liquid ejection head includes: actuator plates having discharge channels to be filled with an ink; sub-plates stacked on the −Z-direction end surfaces of discharge channels in the actuator plates along a flow direction of the ink and having communication paths communicating with the discharge channels; and a nozzle plate stacked on the −Z-direction end surfaces of the communication paths in the sub-plates along the flow direction and having nozzle holes communicating with the discharge channels through the communication paths. The −Z-direction end surfaces of the sub-plates are polished.

公开(公告)号：US10155378B2

公开(公告)日：2018-12-18

申请号：US15711799

申请日：2017-09-21

Applicant: SII Printek Inc.

Inventor： Shunji Kawamoto

IPC: B41J2/045 ,  H03K3/01 ,  H03K19/20 ,  H03K17/66 ,  H03K17/687

Abstract: An overvoltage is prevented from being applied to a circuit. A full-bridge circuit is provided with a first switch having an output terminal connected to one end of a capacitive load, and switching output to the output terminal between a power supply and a ground, a second switch having an output terminal connected to the other end of the capacitive load, and switching output to the output terminal between the power supply and the ground, a first waveform generation section adapted to output a drive waveform for driving the first switch, a second waveform generation section adapted to output a drive waveform for driving the second switch, a detection section adapted to detect voltages of the drive waveforms output by the first waveform generation section and the second waveform generation section, and a control section adapted to control the output of either of the switches based on the voltages detected by the detection section.

公开(公告)号：US10105953B2

公开(公告)日：2018-10-23

申请号：US15479575

申请日：2017-04-05

Applicant: SII Printek Inc.

Inventor： Masaru Midorikawa

IPC: B41J2/165

Abstract: A cleaning device includes a blade unit configured to move relative to an ink jet head and to wipe an ejection surface of the ink jet head. The blade unit includes a first blade and a second blade that are arranged in a moving direction of the blade unit and formed into flexible plate shapes and a blower that makes an inner space, which is defined by the first blade and the second blade, into a negative pressure.

公开(公告)号：US20180272711A1

公开(公告)日：2018-09-27

申请号：US15924695

申请日：2018-03-19

Applicant: SII Printek Inc.

Inventor： Hitoshi NAKAYAMA ,  Takeshi SUGIYAMA ,  Daichi NISHIKAWA ,  Eriko MAEDA

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14209 ,  B41J2/1607 ,  B41J2/1609 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1643 ,  B41J2002/14491 ,  B41J2202/18

Abstract: According to an embodiment, an ink jet head (liquid ejecting head) includes an actuator plate and a cover plate (see FIG. 8). As illustrated in FIG. 1, channel grooves for a discharge channel (ejection channel) and a non-discharge channel (non-ejection channel) in a Z-direction are formed on a front surface of the actuator plate, so as to be alternately arranged in an X-direction, by cutting with a dicing blade or the like. The discharge channel and the non-discharge channel are formed to have a groove width W of smaller than 70 μm, in order to correspond to high density of nozzles. In the embodiment, the discharge channel and the non-discharge channel are formed to have a groove width of 55 μm, 50 μm, or 40 μm, for example.