Kyocera Corporation

Wataru Ikeuchi

Hiroyuki Kawamura

Kenichi Yoshimura

Naoki Kobayashi

Daisuke Hozumi

Yifei Jiao

Yusaku Kaneko

Ayumu Matsumoto

Chisako Fukuda

Chitoshi Ueki

Takashi Miyahara

Akinori Hirashima

Shohei Koide

Shota Kigure

Chisako Mizumoto

Yuusaku Kaneko

A recording device includes a liquid discharger rotatable around a predetermined rotation axis and configured to discharge liquid while circulating the liquid internally and a controller configured to control the liquid discharger to discharge a liquid droplet while reciprocating along a printing direction. The controller controls a position and a posture of the liquid discharger, and thus printing is started from a positive pressure side of the liquid circulating inside the liquid discharger.

Controlled liquid discharge

A first channel member of a fluid discharge head includes a plurality of discharge holes, a plurality of pressurization chambers individually linked to the discharge holes, and first and second shared channels linked to the pressurization chambers. The first shared channel opens at a plurality of first openings linked to the pressurization chambers, includes a first connection region that is a range of distribution of the plurality of first openings in the channel direction of the first shared channel. The second shared channel opens at a plurality of second openings linked to the plurality of pressurization chambers. The second shared includes a second connection region that is a range of distribution of the plurality of second openings in the channel direction of the second shared channel. The first channel member further includes a bypass channel linked to the first and second connection regions in parallel with the pressurization chambers.

Fluid discharge head and recording device

A liquid discharge head includes: a first flow path member that discharges a liquid; a second flow path member including a supply flow path for sending the liquid to the first flow path member, and a collecting flow path for collecting the liquid from the first flow path member. The supply flow path includes a supply branch flow path that branches out at a center portion of the second flow path member in the first direction and extends in a first direction and in a third direction opposite thereto. The collecting flow path includes a collecting branch flow path that branches out at the center portion of the second flow path member in the first direction and extends in the first direction and in the third direction. When viewed in plan, the supply branch flow path and the collecting branch flow path overlap each other.

Liquid discharge head and recording apparatus using same

A liquid discharge headof the present disclosure includes: a flow path memberhaving a plurality of pressurizing chambersconnected to respective discharge holes, a first common flow pathcommonly connected to the plurality of pressurizing chambers, and a second common flow pathcommonly connected to the plurality of pressurizing chambers; and a plurality of pressurizing unitsthat pressurizes the respective pressurizing chambers, in which the first common flow pathextends in a first direction and is open to an outside of the flow path memberat both end portions, and the second common flow pathextends in the first direction and is open to the outside of the flow path memberat both end portions.

Liquid discharge head, recording apparatus using the same, and recording method

A liquid discharge head includes a flow channel member that includes discharge holes, pressurizing chambers that are linked to the discharge holes, respectively, a first common flow channel(s) that is/are commonly linked to the pressurizing chambers, a second common flow channel(s) that is/are commonly linked to the pressurizing chambers, a first flow channel that links the pressurizing chambers and the first common flow channel(s), and a second flow channel that links the pressurizing chambers and the second common flow channel(s), and pressurizing parts that pressurize the pressurizing chambers, respectively, wherein the first flow channel includes a first connection flow channel that connects the first common flow channel(s) and first separate flow channels that are linked to one of the pressurizing chambers, and one of the first common flow channel(s) includes sets that are composed of the first connection flow channel and the first separate flow channels.

Liquid discharge head and recording apparatus that uses it

A liquid discharge head according to the present disclosure includes a plurality of discharge holes, a plurality of pressure applying chambers, a flow path member including a plurality of common flow paths, and a plurality of pressure applying modules. Adjacent discharge hole groups have a part in which, when a discharge hole A is positioned in an n column in one of the discharge hole groups, a discharge hole B in the discharge hole group located adjacent with the common flow path interposed therebetween is positioned in an n&#xb1;1 column. A discharge hole C in the discharge hole group located at a center in a second direction is positioned in an n column, while a non-carry discharge hole is positioned in an n&#xb1;1 column.

Liquid discharge head and recording apparatus using the same

A first flow path member of a liquid ejection head includes a plurality of pressurizing chambers respectively connected to a plurality of ejection holes, a plurality of first individual flow paths and a plurality of second individual flow paths which are respectively connected to the plurality of pressurizing chambers, and a first common flow path connected in common to the plurality of first individual flow paths and the plurality of second individual flow paths. The pressurizing chamber, the first individual flow path, the first common flow path, and the second individual flow path configure an annular flow path. When Tdenotes a resonance period of the pressurizing chamber and Tdenotes a time required for a pressure wave to circulate once around the annular flow path, a decimal place value of T/Tis &#x215b; to &#x215e;.

Liquid ejection head and recording apparatus

In a liquid ejection head, an ejection unit of a channel member includes an ejection hole, a pressurizing chamber connected to the ejection hole, a first channel and a second channel each connecting the pressurizing chamber and a first common channel, and a third channel connecting the pressurizing chamber and a second common channel. The first common channel, in the channel direction, includes a plurality of first portions, and a plurality of second portions each located between each two of the plurality of first portions and having smaller cross-sectional areas than those of the first portions in front and back of the same. In each of the plurality of ejection units, the first channel and the second channel are individually connected to two positions in the first common channel which sandwich at least one of the second portions between them.

Liquid ejection head and recording device

A liquid discharge head according to the present invention includes a flow passage member and a plurality of pressurizing sections. The flow passage member includes a plurality of discharge holes, a plurality of pressurizing chambers respectively connected to the plurality of the discharge holes, a plurality of first flow passages respectively connected to the plurality of the pressurizing chambers to supply liquid to the plurality of the pressurizing chambers, a plurality of second flow passages respectively connected to the plurality of the pressurizing chambers to collect the liquid from the plurality of the pressurizing chambers, and a plurality of third flow passages respectively connected to the pressurizing chambers to supply the liquid to the pressurizing chambers. A plurality of the pressurizing sections respectively pressurizes the plurality of the pressurizing chambers.

Liquid discharge head with partial flow passage member and recording device

A channel member for a liquid ejecting head according to the present invention includes plates that are stacked together. The plates include a first plate including a first hole, a second plate including a second hole, and a third plate including a third hole. In plan view, an opening at the bottom side of the first hole and an opening at the top side of the third hole have a region in which the openings and overlap and a region in which the openings and do not overlap, and the opening at the bottom side of the first hole and the opening at the top side of the third hole are inside the second hole.

Channel member for liquid ejecting head, liquid ejecting head including the same, and recording device including the same

A channel memberfor a liquid ejecting head according to the present invention includes platestothat are stacked together. The plates include a first plateincluding a first hole, a second plateincluding a second hole, and a third plateincluding a third hole. In plan view, an openingat the bottom side of the first holeand an openingat the top side of the third holehave a region in which the openingsandoverlap and a region in which the openingsanddo not overlap, and the opening at the bottom side of the first holeand the openingat the top side of the third holeare inside the second hole

[Object] An object of the present invention is to provide a channel member for a liquid ejecting head with small variations in ejection characteristics, a liquid ejecting head including the channel member, and a recording device. [Solution] A channel memberfor a liquid ejecting head according to the present invention includes a plurality of platestothat include a hole or a groove and that are stacked together with an adhesive layerinterposed therebetween. The hole or the groove constitutes a channel. The plateincludes a receiving groovefor an adhesive, and an edge of the receiving grooveincludes a first projectionthat projects from a principal surface of the plate that includes the receiving groove

Channel member, liquid ejecting head, recording device, and method for manufacturing channel member

The present invention provides a liquid discharge head that causes less deviation in a discharge direction of a liquid from a direction orthogonal to a discharge hole surface, and a recording device using the liquid discharge head. The liquid discharge head of the present invention includes a discharge hole, a discharge hole surface having an opening of the discharge hole, a pressurizing chamber, and a flow channel connecting the discharge hole and the pressurizing chamber. The flow channel includes a nozzle part and a partial flow channel.

Liquid discharge head and recording device using the same

A liquid ejecting head and a recording device are disclosed. The head includes a fluid channel member and a piezoelectric substrate on the fluid channel member. The fluid channel member includes chambers, each having a diamond shape with two obtuse angle portions and two acute angle portions. In a plan view, the chambers are arranged in a matrix, and aligned in directions of a row and of a column. The substrate includes a first electrode, a piezoelectric body and second electrodes. Each of the second electrodes includes a main electrode and a lead-out portion. The main electrode overlaps with the respective chamber, and is located inside the chamber in the plan view. The lead-out electrode includes: a first end which overlaps with the respective chamber; and a second end located outside the chamber and located in a region that does not overlap with the column in the plan view.

Liquid ejecting head and recording device using same

A liquid ejecting head and a recording device are disclosed. The liquid ejecting head includes a fluid channel member and compressing members. The fluid channel member is elongated in a first direction. The fluid channel member includes ejection holes, compression chambers and a manifold. The compressing members is bonded to the fluid channel member. The manifold includes: a length extending in the first direction; openings at the first and second end portions of the fluid channel member; and secondary manifolds divided by one or more partitions that are elongated in the first direction. The compression chambers connected to one of the secondary manifolds configure two compression chamber rows disposed along the secondary manifolds, and the compression chambers belonging to the two compression chamber rows do not overlap in the first direction with compression chambers belonging to compression chamber rows adjacent to the two compression chamber rows.

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Kirishima, Japan

Wataru Ikeuchi