公开(公告)号：US20220111638A1

公开(公告)日：2022-04-14

申请号：US17500947

申请日：2021-10-14

Applicant: Eiji TACHIBANA ,  Ryo HONDA ,  Isamu KUBO

Inventor： Eiji TACHIBANA ,  Ryo HONDA ,  Isamu KUBO

IPC: B41J2/045

Abstract: A liquid discharge apparatus includes a liquid discharge unit, a position detector, and circuitry. The liquid discharge unit has a liquid discharge port and discharges a liquid from the liquid discharge port toward an object. The position detector detects a position of the liquid discharge unit relative to the object. The circuitry calculates a movement trajectory of the liquid discharge unit based on the position of the liquid discharge unit detected by the position detector. Further, the circuitry performs a first operation of causing the liquid discharge unit to move along the movement trajectory without discharging the liquid and performs a second operation of causing the liquid discharge unit to move along the movement trajectory while discharging the liquid to the object after the first operation.

公开(公告)号：US20230278338A1

公开(公告)日：2023-09-07

申请号：US18114988

申请日：2023-02-28

Applicant: Isamu KUBO ,  Keitaroh SAKAI

Inventor： Isamu KUBO ,  Keitaroh SAKAI

IPC: B41J2/14 ,  B41J29/377

CPC classification number: B41J2/1433 ,  B41J2/14274 ,  B41J29/377 ,  B41J2202/05

Abstract: A liquid discharge head includes a nozzle plate having a nozzle from which a liquid is discharged, a housing holding the nozzle plate, a valve that opens and closes the nozzle, an expandable driver disposed inside the housing, and a restraint. The expandable driver has a first end that supports a rear end of the valve and a second end fixed to the housing. The expendable driver moves the valve in a longitudinal direction to push a leading end of the valve against the nozzle to close the nozzle. The restraint positions the second end with respect to the housing in the longitudinal direction. A difference between ΔL1 and ΔL2 is equal to or less than a predetermined value, where ΔL1 represents a thermal deformation amount of a first length due to temperature change, and ΔL2 represents a thermal deformation amount of a second length due to the temperature change.

公开(公告)号：US20250128515A1

公开(公告)日：2025-04-24

申请号：US18922402

申请日：2024-10-22

Applicant: Takeyuki KOBAYASHI ,  Isamu KUBO

Inventor： Takeyuki KOBAYASHI ,  Isamu KUBO

IPC: B41J2/165

Abstract: A liquid discharge apparatus includes a liquid discharge head configured to discharge a liquid; a wiper to wipe a nozzle surface of the liquid discharge head in a wiping direction; a slider to move relative to the wiper to slide along a surface of the wiper in a sliding direction; an applicator having a discharge port to apply a cleaning solution to the wiper; and a circuitry configured to control the wiper, slider, and the applicator to selectively perform one of a first operation and a second operation, wherein, in the first operation, the circuitry is further configured to: control the applicator to apply the cleaning solution to the wiper from the discharge port; and control the slider to slide along the surface of the wiper on which the cleaning solution has been applied by the applicator in the sliding direction.

公开(公告)号：US20240316935A1

公开(公告)日：2024-09-26

申请号：US18592535

申请日：2024-03-01

Applicant: Isamu KUBO ,  Muneyuki OKEGUCHI

Inventor： Isamu KUBO ,  Muneyuki OKEGUCHI

IPC: B41J2/165

CPC classification number: B41J2/16547 ,  B41J2/16538

Abstract: A head maintenance device includes a housing, a wiper, and a cap. The housing is detachably attachable to a conveyor of a liquid discharge apparatus. The conveyor conveys a medium in one direction. The wiper is disposed in the housing to wipe a nozzle face of a liquid discharge head of the liquid discharge apparatus. The cap is disposed in the housing to cover nozzles arrayed on the nozzle face of the liquid discharge head in the one direction.

公开(公告)号：US20140056625A1

公开(公告)日：2014-02-27

申请号：US13953966

申请日：2013-07-30

Applicant: Yutaka NAITOH ,  Tomohiko FUJII ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI ,  Tetsu MORINO ,  Isamu KUBO ,  Yoshiharu TAKAHASHI

Inventor： Yutaka NAITOH ,  Tomohiko FUJII ,  Minoru TOYODA ,  Hitoshi FUJIWARA ,  Tomoya ADACHI ,  Yasuharu KAWARASAKI ,  Tetsu MORINO ,  Isamu KUBO ,  Yoshiharu TAKAHASHI

IPC: G03G15/20

CPC classification number: G03G21/1685 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing unit includes an endless belt accommodating a heat source inside a loop formed by the endless belt, a rotary pressing member rotating in contact with the endless belt in a pressure contact section, and a heat transfer member secured to a side plate within the loop of the endless belt to support and heat the endless belt with heat conducted from the heat source. The heat transfer member has an opening opposite the rotary pressing member. A securing member is disposed in the opening of the heat transfer member in pressure contact with the rotary pressing member via the endless belt. The heat transfer member and the securing member collectively include a pair of latching parts to firmly connect the heat transfer member and the securing member with each other when one of the latching parts is fitted to the other one of the latching parts.

Abstract translation: 定影单元包括：环形带，其在由环形带形成的环内容纳热源;旋转按压构件，其在压力接触部分中与环形带接触旋转;以及传热构件，固定到环内的侧板 的环形带，以便从热源传导的热量来支撑和加热环形带。 传热构件具有与旋转按压构件相对的开口。 固定构件设置在传热构件的开口中，经由环形带与旋转按压构件压力接触。 传热构件和固定构件共同包括一对闩锁部件，当一个闩锁部件嵌合到另一个闩锁部件中时，将传热构件和固定构件彼此牢固地连接。

公开(公告)号：US20220105722A1

公开(公告)日：2022-04-07

申请号：US17493842

申请日：2021-10-05

Applicant: Isamu KUBO ,  Ryo HONDA

Inventor： Isamu KUBO ,  Ryo HONDA

IPC: B41J2/125 ,  B41J2/045

Abstract: A liquid discharge apparatus includes a liquid discharge unit and a contact detection unit. The liquid discharge unit has a liquid discharge port from which a liquid is discharged toward an object. The liquid discharge unit is movable along at least one of a first axis and a second axis intersecting the first axis and movable along a third axis intersecting the first axis and the second axis. The third axis is parallel to a direction in which the liquid is discharged from the liquid discharge port toward the object. The contact detection unit detects contact of the liquid discharge unit with the object. The contact detection unit is detachably attached to the liquid discharge unit.

公开(公告)号：US20190381798A1

公开(公告)日：2019-12-19

申请号：US16480437

申请日：2018-03-02

Applicant: Shotaro UEDA ,  Shingo MASAOKA ,  Isamu KUBO

Inventor： Shotaro UEDA ,  Shingo MASAOKA ,  Isamu KUBO

IPC: B41J2/165 ,  B41J2/335

Abstract: An object of the present disclosure is to provide a liquid discharge apparatus capable of sucking liquid in a cap member while suppressing generation of bubbles by a suction assisting member detachable from a cap member. A liquid discharge apparatus includes a liquid discharge head (6) to discharge liquid from a plurality of nozzles, and a suction mechanism (8) to suck the liquid from the liquid discharge head (6). The suction mechanism (8) includes a cap member (30) to contact the liquid discharge head (6) and cover the plurality of nozzles while forming a space between the cap member (30) and the liquid discharge head (6), a suction pump (31) connected to the cap member (30) via a suction hole (31a) formed in a surface of the cap member (30) to reduce pressure in the space, a suction assisting member (32) to cover the suction hole (30a) and the surface in which the suction hole (30a) is formed in the cap member (30), the suction assisting member (32) including a surface that forms a suction path between the suction assisting member (32) and the cap member (30), and a first support (32a) to provide a gap (c1) between the surface that forms the suction path of the suction assisting member (32) and the surface in which the suction hole (31a) is formed.

公开(公告)号：US20100020128A1

公开(公告)日：2010-01-28

申请号：US12503183

申请日：2009-07-15

Applicant: Isamu KUBO

Inventor： Isamu KUBO

IPC: B41J2/165

CPC classification number: B41J2/16523

Abstract: An image forming apparatus includes a recording head configured to jet droplets of recording liquid; a maintenance device configured to maintain/restore a condition of the recording head, whereby the maintenance device is detachably attached to a body of the image forming apparatus; and a waste liquid tank configured to hold waste liquid collected by the maintenance device, whereby the waste liquid tank is disposed adjacent to the maintenance device. The maintenance device has a jetting tube configured to discharge the waste liquid into the waste liquid tank. The waste liquid tank includes an induction opening surrounding the jetting tube, whereby the induction opening has a notch through which the jetting tube passes when the maintenance device is detached from the body. The image forming apparatus further includes a wall member configured to block at least part of the notch when the maintenance device is attached in the body.

Abstract translation: 图像形成装置包括：记录头，被配置为喷射记录液体的液滴; 维护装置，被配置为维持/恢复记录头的状态，由此维护装置可拆卸地附接到图像形成装置的主体; 以及废液箱，其构造成容纳由所述维护装置收集的废液，由此所述废液箱与所述维护装置相邻地配置。 维护装置具有将废液排出到废液箱内的喷射管。 废液箱包括围绕喷射管的感应开口，由此，当维护装置与主体分离时，该感应开口具有凹口，喷射管穿过该凹槽。 图像形成装置还包括壁构件，其构造成当维护装置附接到身体中时阻挡凹口的至少一部分。

公开(公告)号：US20090122122A1

公开(公告)日：2009-05-14

申请号：US12260566

申请日：2008-10-29

Applicant: Isamu KUBO ,  Yasuhiro Kawashima ,  Kazuki Suzuki ,  Masanori Tanaka

Inventor： Isamu KUBO ,  Yasuhiro Kawashima ,  Kazuki Suzuki ,  Masanori Tanaka

IPC: B41J2/175 ,  H04N1/034

CPC classification number: B41J2/17556 ,  B41J2/175 ,  B41J2/17596 ,  B41J29/38

Abstract: An image forming apparatus includes a carriage configured to movably scan, and including a recording head configured to discharge ink droplets and a sub tank configured to supply ink to the recording head; a main tank configured to supply the ink to the sub tank via a tube; a negative pressure detector configured to detect a state of a negative pressure in the sub tank; a count unit configured to count a number of scans conducted by the carriage; and a control unit configured to cause the negative pressure detector to detect the state of the negative pressure in the sub tank to return the negative pressure in the sub tank to a normal state based on a detection result obtained by the negative pressure detector when the number of scans carried out by the carriage as counted by the count unit reaches a predetermined scan count.

Abstract translation: 图像形成装置包括：托架，被配置为可动地扫描并且包括配置成排出墨滴的记录头和被配置为向记录头供墨的副墨盒; 主罐，经配置以经由管将油墨供应到副罐; 负压检测器，被配置为检测副罐中的负压状态; 计数单元，被配置为对由所述托架进行的扫描次数进行计数; 以及控制单元，其被配置为使得所述负压检测器检测所述副罐中的负压的状态，以便当所述副罐中的所述数量为所述负压检测器的检测结果时，基于由所述负压检测器获得的检测结果将所述副罐中的负压返回到正常状态 由计数单元计数的由托架执行的扫描达到预定的扫描计数。

公开(公告)号：US20080204505A1

公开(公告)日：2008-08-28

申请号：US12035161

申请日：2008-02-21

Applicant: Isamu KUBO

Inventor： Isamu KUBO

IPC: B41J2/165

CPC classification number: B41J2/185 ,  B41J2/16523 ,  B41J2/1721 ,  B41J2/17596

Abstract: An image forming apparatus has a liquid discharge head to discharge droplets of a recording liquid to form an image on a recording medium and a maintenance-and-recovery mechanism to perform a maintenance and recovery operation on the liquid discharge head. The maintenance-and-recovery mechanism includes a suction device, a control unit, a drain tube, and a drain reservoir. The suction device suctions droplets of the recording liquid from the liquid discharge head. The suctioned droplets are not used for an image forming operation. The control unit controls a suction speed of the suction device. The drain reservoir stores the suctioned droplets drained from the drain tube. The drain tube is inclined relative to an opening portion of the drain reservoir. The control unit controls the suction speed of the suction device to change a drain speed of the suctioned droplets drained from the drain tube.

Abstract translation: 图像形成装置具有液体排出头，用于排出记录液体的液滴以在记录介质上形成图像，以及维护和恢复机构，以对液体排出头执行维护和恢复操作。 维护和恢复机构包括抽吸装置，控制单元，排水管和排水容器。 抽吸装置从液体排出头吸入记录液体的液滴。 抽吸的液滴不用于成像操作。 控制单元控制抽吸装置的吸入速度。 排水槽储存从排水管排出的抽吸液滴。 排水管相对于排水容器的开口部分倾斜。 控制单元控制抽吸装置的吸入速度以改变从排水管排出的抽吸液滴的排出速度。