Seiko Epson Corporation

Fumiya Takino

Shunsuke Watanabe

Shingo Tomimatsu

Kenta Anegawa

Taku Hirashima

Hiroshige Owaki

Takahiro Kanegae

Yoichiro Kondo

Eiichiro Watanabe

Kazunori Mori

Masahisa Nawano

Ryota Kinoshita

Yuko Komatsu

Hironori Matsuoka

Ryo Inoue

A head chip that includes a nozzle plate having a plurality of nozzles configure to eject a liquid, another member different from the head chip, an adhesive that bonds the head chip and the other member, and a heating element configured to plasticize the adhesive are provided.

Liquid ejecting head and liquid ejecting apparatus

A liquid ejecting head includes head chips configured to eject a liquid in a first direction, a holder to which the head chips are fixed, a circuit substrate disposed in an opposite direction to the first direction with respect to the holder, and a cover member disposed in the opposite direction to the first direction with respect to the circuit substrate. The head chips respectively have flexible wiring substrates. Each of the flexible wiring substrates includes a coupling terminal portion coupled to the circuit substrate. The cover member includes first ribs protruding toward the circuit substrate. The first ribs overlap the coupling terminal portions when viewed in the first direction. A first adhesive is disposed between the first ribs and the coupling terminal portions.

A liquid ejecting apparatus includes: a first liquid ejecting head having a first wiping surface oriented in a first direction; a second liquid ejecting head disposed in a second direction orthogonal to the first direction with respect to the first liquid ejecting head and having a second wiping surface; and a wiping member. A third direction is orthogonal to the first and second directions; a fourth direction is vertical to the first direction and intersects the second and third directions. The first and second liquid ejecting heads are arranged with a gap between the first and second wiping surfaces. The gap includes a first gap extending in the fourth direction. The first wiping surface has a first region that protrudes toward the second liquid ejecting head beyond an imaginary line extending in the fourth direction so as to overlap the first gap.

Liquid ejecting apparatus

A liquid ejecting head includes a first sidewall, a second sidewall, and head chips. The head chips are arranged side by side between the first sidewall and the second sidewall. Each of the head chips has nozzles configured to discharge a liquid. The first sidewall is formed by a portion of a holder from which the liquid is to be supplied to the head chips, whereas the second sidewall is formed by a portion of a fixed plate to which the head chips are fixed. The fixed plate has an aperture through which the nozzles are exposed.

Liquid ejecting head, head unit, and liquid ejecting apparatus

A control method of a liquid ejection apparatus including a liquid ejection head, a cap configured to seal a nozzle formation surface, and an ejection failure detector which performs a detection operation of detecting ejection failure of a nozzle, the control method including starting a vibration operation of continuously vibrating the liquid in the nozzle, after a liquid ejection operation is completed, starting the detection operation before a relative moving operation of relatively moving the liquid ejection head and the cap so as to face each other is completed, and stopping the vibration operation after the detection operation.

Control method of liquid ejection apparatus

A liquid ejecting head has head units for ejecting a liquid from nozzles onto a medium that is relatively moved in a first direction are arranged in a second direction perpendicular to the first direction. The head unit includes: a nozzle row in which the nozzles are arranged in a third direction intersecting the first direction and the second direction; a pressure chamber which communicates with the nozzles; a pressure generation element which corresponds to the pressure chamber; a supply liquid chamber which communicates with the pressure chambers and into which the liquid to be supplied to each pressure chamber is introduced; an inflow port through which the liquid flows into the head unit; and an outflow port through which the liquid flows out of the head unit.

A head unit has: a first member in which a pressure chamber that stores a liquid to be discharged from a nozzle is formed; a piezoelectric element disposed on the first member and configured to deform in response to a driving signal; a first substrate disposed on the first member so as to cover the piezoelectric element; an integrated circuit disposed on the first substrate, and configured to supply the driving signal to the piezoelectric element; a second member disposed on the first member, and the second member including a holding chamber configured to hold the liquid, and a heat dissipation opening configured to dissipate heat of the integrated circuit; and a third member formed from a metal, the third member being disposed on the second member. The heat dissipation opening is located between the integrated circuit and the third member.

Head unit and liquid-discharging apparatus

A liquid ejecting head includes head units each of which includes a corresponding head substrate and ejects liquid, flexible cables each of which has one end connected to the corresponding head substrate, and a common member including the head units that are fixed thereto. In the liquid ejecting head, when a first direction, a second direction, and a third direction are directions that orthogonally intersect each other and the common member is placed on a virtual surface defined by the first direction and the second direction and has a thickness extending in the third direction, the common member extends more in the first direction than in the second direction. In addition, a fixation region in which each of the flexible cables and the corresponding head substrate are fixed to each other extends more in the second direction than in the first direction when viewed in the third direction.

A liquid ejecting apparatus includes a liquid ejecting head that prints an image on a medium, by ejecting a liquid through nozzles, a transport belt that transports the medium, at a position opposite the liquid ejecting head, a moving mechanism that moves the transport belt in a width direction, and a control unit that controls the moving mechanism. The liquid ejecting head includes a first nozzle group and a second nozzle group. The control unit controls the moving mechanism such that a nozzle group performing the preliminary ejection which is an ejection of the liquid not uninvolved in printing among the first nozzle group and the second nozzle group is located at a position not facing the transport belt, and a nozzle group that does not perform the preliminary ejection is located at a position facing the transport belt.

A liquid ejecting head includes a pressure chamber that communicates with a nozzle which ejects liquid, a liquid chamber that communicates with the pressure chamber, a flexible compliance member that defines a portion of the liquid chamber, and a pressure adjusting mechanism that adjusts a supply pressure of liquid supplied to the liquid chamber. The pressure adjusting mechanism can adjust displacement of the compliance member.

Liquid ejecting head, liquid ejecting apparatus, and control method for liquid ejecting apparatus

A liquid ejecting head may include a driver element that ejects liquid in a pressure chamber from a nozzle, a liquid storage chamber that stores liquid to be supplied to the pressure chamber, and a driver IC that drives the driver element. At least a part of the liquid storage chamber overlaps with both the driver element and the driver IC when viewed in plan.

A flow path member includes a plurality of flow paths including a first flow path, a filter chamber which communicates with the first flow path and is provided with a filter, and a second flow path which communicates with the filter chamber, in which the filter is disposed so that a direction including a direction where liquid of the first flow path or the second flow path flows is a surface direction, and in which a plurality of filter chambers are disposed at positions where at least the filter chambers partially overlap each other in a normal direction with respect to the surface direction of the filter.

Flow path member, liquid ejecting head, and liquid ejecting apparatus

A liquid ejecting head () includes a pressure chamber substrate () on which pressure chamber spaces () are formed; a flow path substrate () which includes a first face (F) on which the pressure chamber substrate () is provided, and a second face (F) on a side opposite to the first face (F), and on which a space (R), a supply hole () which causes the space (R) and the pressure chamber space () to communicate, and a communicating hole () which communicates with the pressure chamber space () are formed; a nozzle plate () which is provided on the second face (F), and on which nozzles (N) which communicate with the communicating hole () are formed; a housing () which is provided on the first face (F), and in which a space (R) which communicates with the space (R) of the flow path substrate (), and an opening portion () which communicates with the space (R) are formed; a flexible compliance unit () which is provided on the second face (F), and seals the communicating hole () and the space (R); and a flexible compliance unit () which seals the opening portion ().

A liquid ejecting apparatus includes a liquid ejecting head that has a nozzle opening surface in which the nozzles open, a displacing mechanism formed to change a posture of the liquid ejecting head between a first posture in which the nozzle opening surface is inclined with respect to the horizontal and a second posture in which an inclination of the nozzle opening surface is smaller than the inclination of the nozzle opening surface in the first posture, and a wiping member to wipe the liquid ejecting head. On the nozzle opening surface, if a vertical lower end in the first posture is a first end and a vertical upper end in the first posture is a second end, the wiping member wipes the liquid ejecting head from the first end side toward the second end side when the liquid ejecting head is in the second posture.

Liquid ejecting apparatus with movable head unit

A liquid ejecting head includes a plurality of actuators, a plurality of pressure chambers that are provided so as to correspond to the actuators, and communicate with a common liquid chamber, a first member that defines the common liquid chamber, and includes a compliance sheet that absorbs vibrations of liquid on an upstream side of the common liquid chamber, and an inlet that is formed so as to penetrate the compliance sheet, a canopy portion that is provided at an open peripheral edge of the inlet of the first member, and has a receiving surface to which the compliance sheet is joined, and a receiving portion that is provided opposite the inlet across the canopy portion, and receives liquid introduced from the inlet.

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Shiojiri, Japan

Fumiya Takino