公开(公告)号：US20200338895A1

公开(公告)日：2020-10-29

申请号：US16926592

申请日：2020-07-10

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi SATAKE ,  Yasutaka INUI ,  Takuma ARAKI

IPC: B41J2/165 ,  B41J2/21

Abstract: A recording head recovery system includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. The pressure contact angle of the tip of the wiper to the ink ejection surface is decreased after the wiper passes the cleaning liquid supply region before reaching the ink ejection region.

公开(公告)号：US20230311534A1

公开(公告)日：2023-10-05

申请号：US18191805

申请日：2023-03-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Masanobu MAESHIMA ,  Noriaki FURUKAWA ,  Takuma ARAKI

IPC: B41J2/175

CPC classification number: B41J2/17566 ,  B41J2/17596 ,  B41J2/17509 ,  B41J2002/17576

Abstract: A sub-tank is disposed in a flow path from a main tank to a recording head. The sub-tank includes a tank main body, a level sensor and a flow restricting part. In the tank main body, ink replenished from the main tank is contained. The level sensor detects a liquid level of the ink in the tank main body. The flow restricting part restricts flowing of the ink in an upper-and-lower direction in the tank main body. The flow path is connected to the tank main body at a position below the flow restricting part. The flow restricting part is disposed at a position below a lower limit level of the liquid level.

公开(公告)号：US20210101388A1

公开(公告)日：2021-04-08

申请号：US17124748

申请日：2020-12-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi SATAKE ,  Yasutaka INUI ,  Takuma ARAKI

IPC: B41J2/165 ,  B41J2/21

Abstract: Provided is a recording head recovery system, which includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and includes a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. A height position of a lower end part of the wiper when passing the cleaning liquid supply region is lower than a height position of the lower end part of the wiper when wiping the ink ejection region.

公开(公告)号：US20200376845A1

公开(公告)日：2020-12-03

申请号：US16885117

申请日：2020-05-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Noriaki FURUKAWA ,  Takashi SOMETE ,  Chikara ISHIHARA ,  Hiroyuki UEDA ,  Hiroomi NAKATSUJI ,  Issei NAKANO ,  Aiichiro OTANA ,  Jun NAKANO ,  Yasutaka INUI ,  Takuma ARAKI

IPC: B41J2/165

Abstract: An inkjet recording apparatus includes a recording head, a wiper member, a cleaning liquid supply device, a cleaning liquid flow path, and a controller. The cleaning liquid flow path includes a vertical tubular member connected to the cleaning liquid supply device and extending upward, and a horizontal tubular member connected to an upper end of the vertical tubular member and extending in a horizontal direction. The controller extrudes a cleaning liquid in at least a part of the cleaning liquid flow path from a cleaning liquid supply port before control of a cleaning operation for wiping an ink ejection surface of the recording head, thereby performing control of an air bubble release operation of the cleaning liquid flow path.

公开(公告)号：US20230115621A1

公开(公告)日：2023-04-13

申请号：US17935793

申请日：2022-09-27

Applicant: KYOCERA Document Solutions Inc.

Inventor： Issei NAKANO ,  Takuma ARAKI

IPC: B41J2/165

Abstract: A wiping device includes a wiping member and a moving part. The wiping member wipes a liquid off a nozzle surface of a recording head. The moving part moves the wiping member along the nozzle surface in a predetermined moving direction. The wiping member performs a first wiping operation in which the wiping member is moved while not coming into contact with the nozzle surface but coming into contact with the liquid adhering to the nozzle surface, and a second wiping operation in which the wiping member is moved while coming into contact with the nozzle surface after the first wiping operation.

公开(公告)号：US20210300044A1

公开(公告)日：2021-09-30

申请号：US17206253

申请日：2021-03-19

Applicant: KYOCERA Document Solutions Inc.

Inventor： Hiroyuki UEDA ,  Chikara ISHIHARA ,  Takashi SOMETE ,  lssei NAKANO ,  Jun NAKANO ,  Hiroomi NAKATSUJI ,  Aiichiro OTANA ,  Takuma ARAKI ,  Noriaki FURUKAWA ,  Yasutaka INUI

IPC: B41J2/165

Abstract: The inkjet recording apparatus includes a conveyance belt, a conveyance plate, a suction unit, an inkjet head, and a cleaning unit. The conveyance belt has a plurality of through holes. The suction unit causes the conveyance belt to suck the sheet. The conveyance plate includes a plurality of through holes formed in bottom portions of the plurality of recessed portions. The inkjet head includes a head main body and a head end portion adjacent to the head main body, and faces an upper surface of the conveyance plate via the conveyance belt. The cleaning unit removes ink adhering to a lower surface of the head main body. A ratio of the recessed portions per unit area in a facing region of the conveyance plate facing the head end portion is smaller than a ratio of the recessed portions per unit area in a region other than the facing region.

公开(公告)号：US20180264824A1

公开(公告)日：2018-09-20

申请号：US15908275

申请日：2018-02-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takuma ARAKI ,  Kenichi SATAKE ,  Yasutaka INUI

IPC: B41J2/165

CPC classification number: B41J2/16538 ,  B41J2/16508 ,  B41J2/16511 ,  B41J2/16544 ,  B41J2/16552 ,  B41J2/16585 ,  B41J2002/16502 ,  B41J2002/16558

Abstract: A head cleaning mechanism includes a recording head and a wiper. The recording head has an ink ejection surface in which ink ejection ports are opened. The wiper wipes the ink ejection surface. The recording head has a cleaning liquid supply ports disposed on an upstream side of the ink ejection port in a wiping direction, and an inclined surface inclined downward toward a downstream side in the wiping direction, a tip of the wiper being in pressure contact with the inclined surface in the wiping operation. The inclined surface has a pressure contact start position at which the wiper starts the pressure contact in the wiping operation, and a water repellent region formed at least from the pressure contact start position to a position on an upstream side of the cleaning liquid supply port in the wiping direction.

公开(公告)号：US20180207936A1

公开(公告)日：2018-07-26

申请号：US15868162

申请日：2018-01-11

Applicant: KYOCERA Document Solutions Inc.

Inventor： Kenichi SATAKE ,  Yasutaka INUI ,  Takuma ARAKI

IPC: B41J2/165 ,  B41J2/21

Abstract: Provided is a recording head recovery system, which includes a recording head and a wiper. The recording head includes an ink ejection surface provided with an ink ejection region in which ink ejection ports are formed. The recording head is disposed on a wiping direction upstream side of the ink ejection region, and a cleaning liquid supply region in which cleaning liquid supply ports for supplying cleaning liquid are formed. A height position of a lower end part of the wiper when passing the cleaning liquid supply region is lower than a height position of the lower end part of the wiper when wiping the ink ejection region.

公开(公告)号：US20180194140A1

公开(公告)日：2018-07-12

申请号：US15856885

申请日：2017-12-28

Applicant: KYOCERA Document Solutions Inc.

Inventor： Takuma ARAKI ,  Kenichi SATAKE ,  Yasutaka INUI

IPC: B41J2/165 ,  B41J2/17

CPC classification number: B41J2/16538 ,  B41J2/16552 ,  B41J2/1707 ,  B41J2/1714 ,  B41J2/185 ,  B41J2002/16502 ,  B41J2002/16558

Abstract: A head cleaning mechanism of the disclosure includes a recording head and a wiper. The recording head includes an ink ejection surface in which an ink ejection area with a plurality of ink ejection ports opened therein is provided. The wiper wipes the ink ejection surface in a specified direction. The recording head includes an inclined surface placed on an upstream side of the ink ejection surface in a wiping direction that is a direction in which the wiper wipes the ink ejection surface, the inclined surface being inclined downward toward a downstream side of the wiping direction. A plurality of cleaning liquid supply ports for supplying cleaning liquid are provided on a wiping-direction upstream side of a position in the inclined surface with which the wiper makes contact during wiping operation.

公开(公告)号：US20230302815A1

公开(公告)日：2023-09-28

申请号：US18185841

申请日：2023-03-17

Applicant: KYOCERA Document Solutions Inc.

Inventor： Noriaki FURUKAWA ,  Takashi SOMETE ,  Takuma ARAKI

IPC: B41J2/185 ,  B41J2/165

CPC classification number: B41J2/185 ,  B41J2/16526 ,  B41J2202/12 ,  B41J2002/1856 ,  B41J2002/1853

Abstract: Provided is an ink-replacement method for an inkjet recording apparatus that includes a recording head having an ink ejection surface on which a plurality of nozzles for ejecting ink onto a recording medium is arranged, a sub-tank for temporarily retaining the ink supplied from an ink container, and an ink flow path along which the ink circulates from and to the sub-tank by passing through the recording head. In replacing a first ink present in the ink flow path with a second ink to be newly supplied to the recording head via the ink flow path, when the second ink is caused to flow from the sub-tank into the ink flow path, pulsation is generated in the ink flow path.