Seiko Epson Corporation

Satoshi Oguchi

Shunsuke Watanabe

Hiroaki Okui

Yoshinao Miyata

Yuma Fukuzawa

Katsumi Enomoto

Fujio Akahane

Masashi Kanai

Ryohei Kuri

Shigeki Suzuki

An inspection method includes: spectroscopically separating light from a predetermined imaging range of an inspection object into light of a plurality of wavelengths and imaging spectroscopic images of each of the wavelengths; inspecting a shape of the inspection object using the spectroscopic image of a predetermined wavelength among the wavelengths imaged in the imaging of the spectroscopic images of each of the wavelengths; and inspecting a color of the inspection object using the spectroscopic images of each of the wavelengths imaged. The predetermined wavelength is determined so that a maximum light quantity of the light from the inspection object in the corresponding spectroscopic image at the predetermined wavelength is equal to or higher than maximum light quantities in the other spectroscopic images at the other wavelengths.

Inspection apparatus, inspection system, and inspection method

An inspection apparatus includes a spectroscopic imager that spectroscopically separates light from a predetermined imaging range of an inspection object into light of a plurality of wavelengths and images spectroscopic images of each of the wavelengths, a shape inspection unit that inspects a shape of the inspection object using a spectroscopic image of a predetermined wavelength among the spectroscopic images of each of the wavelengths, and a color inspection unit that inspects a color of the inspection object using the spectroscopic images of each of the wavelengths.

A liquid ejecting apparatus includes a head unit capable of ejecting a liquid from a nozzle provided in a nozzle surface of a nozzle plate, an anchoring plate in which the head unit is anchored and that is provided with an opening region that exposes the nozzle surface, and a wiper member that wipes an anchoring plate exposed-surface located on the opposite side of the head unit of the anchoring plate and the nozzle surface. When an angle of contact between the nozzle surface and the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surface and the liquid is taken as &#x3b8;s, and an angle of contact between the wiper member and the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

Liquid ejecting apparatus

An optical module includes: a measuring device including a measuring portion that measures light reflected at a measurement position of a measurement target, a light source that radiates light onto the measurement position in a direction crossing a measurement optical axis oriented from the measurement position to the measuring portion, and a window through which light incident on the measuring portion passes; and a shutter that opens and closes the window of the measuring device. The shutter is provided with a reference object disposed closer to the measuring portion side than the measurement position on the measurement optical axis, on a face of the shutter facing the measuring portion when closing the window, and the optical module includes a light guide that guides the light from the light source to the reference object when the window is closed by the shutter.

Optical module and electronic apparatus

Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unitcapable of ejecting a liquid from a nozzleprovided in a nozzle surfaceof a nozzle plate, an anchoring platein which the head unitis anchored and that is provided with an opening regionthat exposes the nozzle surface, and a wiper memberthat wipes an anchoring plate exposed-surfacelocated on the opposite side of the head unitof the anchoring plateand the nozzle surface. When an angle of contact between the nozzle surfaceand the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surfaceand the liquid is taken as &#x3b8;s, and an angle of contact between the wiper memberand the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.

Liquid ejecting head and liquid ejecting apparatus

Provided is a liquid ejecting head that includes a manifold which communicates with a plurality of nozzle openings through which liquid is ejected, a compliance portion which constitutes a part of the manifold and is constituted by a film having flexibility, a fixing plate which is fixed to a surface side of the film, which is a side opposite to the manifold, and has an opening formed in an area which constitutes the compliance portion, and a cap member which is fixed to a surface side of the fixing plate, which is a side opposite to the compliance portion, and covers the opening, in which a protrusion portion which regulates adhering of the film to the cap member is provided, in a state where the protrusion portion is not fixed to the fixing plate, in a space formed in a portion between the compliance portion and the cap member.

A wiper memberthat wipes an anchoring plate exposed-surfacelocated on the opposite side of the head unitof the anchoring plateand the nozzle surface. When an angle of contact between the nozzle surfaceand the liquid is taken as &#x3b8;n, an angle of contact between the anchoring plate exposed-surfaceand the liquid is taken as &#x3b8;s, and an angle of contact between the wiper memberand the liquid is taken as &#x3b8;w, the relationship &#x3b8;n&#x3e;&#x3b8;s&#x3e;&#x3b8;w&#x3e;90&#xb0; is fulfilled.

Liquid ejecting head comprises a unit head bonded to a communication substrate. A plurality of liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. A plurality of empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in a opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define a plurality of common liquid chambers.

There is disclosed a liquid ejecting head having a configuration in which a cross-sectional area of an intermediate passage is smaller than that of an upstream passage and a downstream passage to cause a flow speed of ink to be faster in the intermediate passage when the ink flows toward the downstream passage via the intermediate passage without passing through a filter, thereby making it possible to flow air bubbles staying on a face of the filter together with the ink.

A head unit fixed to a case in a position in which a nozzle forming surface thereof faces a first surface side of a head fixing portion, and a wiring substrate is arranged on a second surface side opposite from the first surface on a portion. A supply flow channel in the case communicate with a common liquid chamber at an end portion of the communicating flow channel in a first direction, and a flexible cable is disposed inside the supply flow channel in the case in the first direction.

A liquid ejecting head unit includes: a plurality of liquid ejecting heads, each of which has a nozzle array in which nozzles ejecting liquid droplets are arrayed; a base plate to which the plurality of liquid ejecting heads are fixed in a state being positioned at predetermined positions thereof; and positioning pins which are fixed to the base plate and engaged with positioning holes formed in the liquid ejecting heads. Each of the positioning pins is held in a holding hole provided in a fixing plate fixed to the base plate. A reference plate is joined to a surface of each of the fixing plates. Further, in each of the reference plates, there are provided: an insertion hole in which the positioning pin is substantially inscribed; and a minute hole that serves as a reference for positioning the positioning pin to the base plate.

Liquid ejecting head unit and liquid ejecting apparatus

A liquid ejecting head unit including liquid ejecting head bodies for ejecting liquid by the drive of a pressure generating device; wiring members for feeding drive signals to the pressure generating device of the liquid ejecting head bodies; and connector members provided at an end of the wiring members, being connected by the wiring members, and having second connector sections detachable from first connectors of the liquid ejecting head bodies; wherein the connector members respectively include a base member equipped with a wiring member connector for inserting the connecting end of the wiring member for connection, and a retaining member fixed to the base member covering the wiring member connector section; wherein the wiring members inserted into the wiring member connector are retained in a folded state by the retaining members.

Growing community of inventors

Okaya, Japan

Satoshi Oguchi