JP2015174391A5

JP2015174391A5 -

Info

Publication number: JP2015174391A5
Application number: JP2014053757A
Authority: JP
Filing date: 2014-03-17
Publication date: 2017-04-06
Anticipated expiration: 2034-03-17

Claims

A plate-like base portion;
A supply port formed on one surface of the base portion;
A plurality of outlets formed on the other surface of the base portion,
A flow channel structure in which a flow channel is formed in the base portion to communicate the supply port with the plurality of outlets.

The base portion is
A first substrate including a first surface on which the supply port is formed;
A second substrate including a second surface on which the plurality of outlets are formed,
A first flow path surface opposite to the first surface of the first substrate and a second flow path surface opposite to the second surface of the second substrate are bonded to each other,
The flow path structure according to claim 1, wherein the flow path is formed by a groove formed in at least one of the first flow path surface and the second flow path surface.

Each of the plurality of outlets is a tubular portion protruding from the second surface,
Wherein a plurality of outflow one outlet of the mouth and other outlets, according to claim 1 or flow channel structure according to claim 2 height to the second surface is different.

The flow path structure according to any one of claims 1 to 3 , wherein the supply port, the plurality of outflow ports, and a flow path from the supply port to the plurality of outflow ports are formed for each of a plurality of fluids. .

The plurality of fluids include a liquid and a gas,
While extending flow path straight in plan view of the liquid, the flow path of the gas, claim is formed into a bent shape so as to bypass the mounting holes for fixing the substrate in plan view 4 Flow channel structure.

Wherein the plurality of fluid flow channel structure according to claim 4 or claim 5 including a plurality of gas pressurized independently of each other.

The plurality of fluids include a first liquid, a second liquid, and a gas,
The flow path structure according to any one of claims 4 to 6 , wherein the gas flow path is located between the flow path of the first liquid and the flow path of the second liquid in a plan view.

The flow path structure according to any one of claims 4 to 7 , which distributes each of a plurality of fluids including a liquid and a gas;
A flow path control unit that controls the flow path of the liquid of each system after distribution by the flow path structure using the gas of each system after distribution by the flow path structure;
A liquid ejecting head comprising: a liquid ejecting section that ejects the liquid that has passed through the flow path control section from a plurality of nozzles.

The liquid ejecting unit is
A liquid distributor that distributes the liquid of each system via the flow path controller;
A plurality of ejection head units that eject liquid of each system after being distributed by the liquid distribution unit from a plurality of nozzles according to a drive signal;
The liquid ejecting head according to claim 8 , further comprising: a wiring board that is installed between the flow path structure and the liquid distributor and on which wiring for transmitting the driving signal is formed.

The liquid distribution unit includes an opening corresponding to each of the plurality of ejection head units,
The liquid ejecting head according to claim 9 , wherein each of the plurality of ejecting head units includes a flexible wiring board connected to the wiring substrate through the opening of the liquid distributing unit.

A flat channel structure that distributes each of a plurality of fluids including liquid and gas;
A flow path control unit that controls the flow path of the liquid of each system after distribution by the flow path structure using the gas of each system after distribution by the flow path structure;
A liquid ejecting unit that ejects the liquid from the plurality of nozzles via the flow path control unit;
The liquid ejecting unit is
A plate-like liquid distributor that distributes the liquid of each system via the flow path controller;
A plurality of ejection head units that eject the liquid of each system after being distributed by the liquid distribution unit from a plurality of nozzles according to a drive signal;
The flow path control unit is located between the flow path structure and the liquid distribution unit that overlap each other in a plan view.

The liquid distributor includes a first flow path substrate, a second flow path substrate, and a third flow path substrate stacked on each other,
A first flow path for distributing a first liquid of the plurality of fluids to the plurality of ejection head portions is formed between the first flow path substrate and the second flow path substrate;
According claim 9 in which the second flow path for distributing the second liquid of said plurality of fluid to the plurality of ejection head is formed between the third flow path substrate and the second flow path substrate Item 12. The liquid jet head according to Item 11 .

Each of the plurality of ejection head portions is
A liquid storage chamber for storing the liquid after distribution by the liquid distribution unit;
A plurality of pressure chambers filled with liquid ejected from the nozzle;
The liquid ejecting head according to claim 11 or claim 12 comprising a liquid stored in the liquid storage chamber and a plurality of supply flow path for supplying to the plurality of pressure chambers.

The flow path structure distributes the liquid to a plurality of outlets arranged along a first direction,
The liquid ejecting head according to claim 13 , wherein the plurality of pressure chambers in each of the plurality of ejecting head portions are arranged along a second direction different from the first direction.

The plurality of fluids include K types of liquids,
Distribution number of the one liquid by the flow channel structure, one of the liquid jet head according to claim 14 claim 11 which exceeds the number of types K of the liquid.

The plurality of fluids include K types of liquids,
The distribution number of the one liquid by the liquid distribution unit, either of the liquid jet head according to claim 15 claim 11 which exceeds the number of types K of the liquid.

Printing apparatus having any of the liquid jet head according to claim 16 claim 8.