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Patent

Thermal printing device and methods for manufacturing the same

TLDR
In this paper, a thermal printing operation is performed by applying a variable voltage or current between the two metal wires in order to heat the microheater to a predetermined temperature, and the wires are disposed on two sides of the heating surface of the body.
Abstract
A thermal printing device includes a substrate, an insulation layer on the substrate, and a plurality of microheaters on the insulation layer. Two adjacent ones of the microheaters are separated by a trench. Each of the microheaters includes a body having a heating surface, and two metal wires disposed on two sides of the heating surface of the body. A thermal printing operation is performed by applying a variable voltage or current between the two metal wires in order to heat the microheater to a predetermined temperature.

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Citations
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Journal ArticleDOI

Microheater Array Powder Sintering: A Novel Additive Manufacturing Process

TL;DR: In this paper, a microheater array powder sintering (MAPS) method is proposed to reduce the power consumption of the microheaters and increase the printing speed.
Patent

Thermal ink jet printhead with wide heater element

TL;DR: A heater element is a suspended elongate strip, the strip having a cross section with a lateral dimension at least triple that of the thickness of the strip as mentioned in this paper, which can be relatively wide and flat and will require less etching.
Patent

Modular printhead assembly

TL;DR: In this article, a modular printhead assembly includes an elongate substrate member that defines a plurality of holes and a bus bar assembly arranged on the substrate member for providing the printhead integrated circuits with power.
Patent

Method of ejecting fluid using wide heater element

TL;DR: In this paper, a method of ejecting fluid from a printhead nozzle is described, where the heater element is heated to a temperature above the boiling point of the fluid to form a gas bubble that causes ejection of a drop of fluid from the ejection port.
Patent

Printhead having wide heater elements

TL;DR: In this article, a printhead is provided with corresponding nozzles, chambers and heaters, each of which has a heater element and electrodes connecting current from a power source to the heater elements to heat, and form gas bubbles in, liquid within the chambers which causes ejection of the liquid from the nozzle.
References
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Patent

Thermal head enabling continuous printing without print quality deterioration

TL;DR: In this paper, a bridging layer of transition metal is formed on a top surface of a heat radiation substrate, and a bridge layer of cermet or ceramic material is made between the bridge layer and the heat insulation layer.
Patent

Heat ray radiating head

TL;DR: In this article, a heat ray radiating head with an anti-oxidation film covering the lower side of the heating resistors is provided on a substrate, where an air layer is provided in the vicinity of the film at a central part of each heating resistor.