US 2018/0009248 A1Published application

Ink jet apparatus

AssigneeSeiko Epson Corporation

InventorsKoji Kitazawa, Toshio Kumagai

Life of this patent

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Abstract

An ink jet apparatus includes a head, a circuit substrate, a cover frame, a heat sink, a fan, and a wall section. The cover frame supports the circuit substrate that has a drive circuit that drives the head inside of the cover frame and has a through hole. The heat sink that dissipates heat generated in the circuit substrate is disposed inside of the cover frame and has a part that is in direct or indirect contact with the circuit substrate. The fan generates air flow and is arranged such that the fan and the heat sink face to each other via the through hole. The wall section is disposed inside of the cover frame such that the air flow is not directly blown against the drive circuit and the air flow having changed a direction after blown against the heat sink is not blown against the drive circuit.

Claims5

Dependent claims

An ink jet apparatus, comprising:

a head configured to discharge liquid;
a circuit substrate that has a drive circuit that is configured to drive the head;
a cover frame supporting the circuit substrate inside of the cover frame, the cover frame having a through hole;
a heat sink which has a part that is in direct or indirect contact with the circuit substrate and is configured to dissipate heat generated in the circuit substrate, the heat sink being disposed inside of the cover frame;
a fan configured to generate air flow to cool the heat sink, the fan being arranged such that the fan and the heat sink face to each other via the through hole;
and
a wall section disposed inside of the cover frame such that the air flow is not directly blown against the drive circuit and such that the air flow having changed a direction after blown against the heat sink is not blown against the drive circuit.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/712,602Filed 22 Sep 2017
Priority: JP 2015-0798249 Apr 2015
Published: 11 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B41J 29/377
Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for: cooling or ventilating arrangements
B41J 2202/08
Embodiments of or processes related to ink-jet heads: dealing with thermal variations, e.g. cooling
B41J 2202/18
Embodiments of or processes related to ink-jet heads: electrical connection established using vias
B41J 2202/19
Embodiments of or processes related to ink-jet heads: assembling head units

Family

Application15/079,242Division · filed 24 Mar 2016
Application15/712,602Division
US 10,226,954 B2Related patent
US 2016/0297221 A1Published application
US 9,796,199 B2Related patent
US 2018/0009248 A1This patent

From the US filing history. Foreign family members aren’t listed.

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