JPH01110176A - Printer - Google Patents

Abstract

PURPOSE:To enhance a printing speed to a great extent by a method wherein refrigerating cycle composing elements and a refrigerating cycle driving motor are contained in a housing of a printer with a printing head using a superconducting material. CONSTITUTION:A printing head 1 made of a superconducting material is connected to one end of a heat pipe 8 to be filled with a gas having a boiling point not more than a superconductivity transition temperature. The other end of the heat pipe 8 is connected to an evaporator 4 of a refrigerating cycle. The evaporator 4 decreases in temperature to the boiling point or below of the gas in the pipe 8 by driving the refrigerating cycle, a heat radiated from a condenser 5 is emitted outside a printer housing 9 by a fan motor 7, and a compressor 3 is directly driven by a motor 2 in the housing 9. When the head 1 prints on a paper being fed by a rubber roller 11 while traveling on a guide shaft 12, the head 1 made of the superconducting material is prevented from the heat generation due to Joule heat, thus remarkably enhancing a printer in printing speed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer that prints characters, figures, etc. on paper used for outputting information equipment, etc.

[Conventional technology]

Conventionally, the printing head of a printer has been made of a normal conductive material, as shown in FIG. 2, and has been equipped with a cooling system such as an air blower.

[Problem that the invention seeks to solve]

However, with conventional technology, the printing head generates heat due to Joule heat generated during driving due to the resistance component of the coil wound around the printing head, and furthermore, due to the structure of the printing head, cooling by blowing air does not work effectively, resulting in overheating. However, the printing speed of the printer is severely limited, and the air blower increases the weight of the printing head, which further reduces the printing speed.

Therefore, in order to solve these conventional problems, the printer of the present invention aims to provide a printer that does not generate heat from the printing head and, as a result, can significantly improve printing speed.

[Means for solving problems]

In order to solve the above problems, the printer of the present invention uses a printing head made of a superconducting material, and includes an evaporator for cooling the printing head inside the printer case, and a refrigeration cycle and the evaporator. Consisting of condenser, expansion valve,
[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a printing head made of superconducting material. A heat pipe 8 is thermally connected at one end to the printing head 1, and is filled with a gas having a boiling point below the superconducting transition temperature of the superconducting material used in the printing head 1. The other end of the heat pipe 8 is the evaporator 4 of the refrigeration cycle.
It is connected to the. The refrigeration cycle includes an evaporator 4, a condenser 5, an expansion valve 6. The evaporator 4, which is constituted by the compressor 3, is brought to a low temperature below the boiling point of the gas inside the heat vibe 8 by operation of the refrigeration cycle. Heat radiated from the condenser 5 is radiated to the outside of the printer national body 9 by a fan motor 7. Similarly, the compressor 3 is directly driven by a compressor driving motor 2 built in the printer unit 9. Moreover, since the inside of the compressor part driving motor 2 is used as a flow path for the high-pressure side gas of the refrigeration cycle, overheating of the motor can be avoided.

The above-mentioned refrigeration cycle, printing head 19 paper feeding, etc. are all controlled by the controller 15. Note that the connector 10 is provided for input/output with the outside.

In the embodiment described above, the printing head 1 is placed on the paper fed by the rubber roller 11 using the printing head guide shaft 1.
When printing while moving over 2, print head 1
Since it is made of superconducting material, it does not generate heat due to Joule heat, and is freed from thermal constraints, dramatically increasing the printing speed of printers.

〔Effect of the invention〕

As explained above, the present invention provides handling, Enables printers to run faster without making maintenance difficult.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a printer according to the present invention, and FIG. 2 is a diagram showing the top of a print head of a conventional printer. 1... Printing head 2... Compressor motor 3...
...Compressor 4...Evaporator 5...Condenser 6...I tension valve 7... ...Fan motor 8...Heat pipe 9...Printer national polity 10...Connector 11...Rubber roller 12...・Printing head guide shaft 13・・
...Applicant for controllers and above Seiko Epson Corporation

Claims (3)

[Claims] (1) In a printer using a printing head made of a superconducting material, an evaporator for cooling the printing head and a condenser forming a refrigeration cycle together with the evaporator are provided inside the casing of the printer. A printer comprising: an expansion valve, a compressor, and a motor for driving the compressor. (2) The printer according to claim 1, wherein the compressor is directly driven by a compressor driving motor without using a speed reducer. (3) The compressor and the motor for driving the compressor are enclosed in the same case, and the cooling gas has a flow path inside the motor for driving the compressor. Printer listed.