Abstract: A water treatment system and a ballast water treatment method. A ballast water treatment system according to an embodiment of the present invention comprises: a first ballast water supply pipe for receiving a supply of ballast water from a first sea chest positioned in a non-explosion-proof area of a ship; an electrolytic bath for electrolyzing the ballast water supplied from the first ballast water supply pipe; a second ballast water supply pipe for receiving a supply of ballast water from a second sea chest, which is positioned in an explosion-proof area of the ship, and supplying the ballast water to a ballast tank of the ship; a filter provided to the second ballast water supply pipe so as to filter the ballast water passing through the second ballast water supply pipe; and a third ballast water supply pipe connected to the second ballast water supply pipe so as to supply the ballast water, which has been electrolyzed from the electrolytic bath, to the ballast water which has passed through the filter.

Abstract: A water treatment system and a ballast water treatment method. A ballast water treatment system according to an embodiment of the present invention comprises: a first ballast water supply pipe for receiving a supply of ballast water from a first sea chest positioned in a non-explosion-proof area of a ship; an electrolytic bath for electrolyzing the ballast water supplied from the first ballast water supply pipe; a second ballast water supply pipe for receiving a supply of ballast water from a second sea chest, which is positioned in an explosion-proof area of the ship, and supplying the ballast water to a ballast tank of the ship; a filter provided to the second ballast water supply pipe so as to filter the ballast water passing through the second ballast water supply pipe; and a third ballast water supply pipe connected to the second ballast water supply pipe so as to supply the ballast water, which has been electrolyzed from the electrolytic bath, to the ballast water which has passed through the filter.

Abstract: An ink jet printer bed in which a printing object placed on a bed is stably fixed by means of air suction and is printed, is disclosed, which comprises a plurality of upper plates having a plurality of air suction ports on their front surfaces; an intermediate plate which is formed of a guide space of which intermediate portion is open via its upper lower sides, the intermediate plate being assembled to a lower side of the upper plate; a lower plate which is assembled to a lower side of the intermediate portion and is formed of at least one air passage; a connection part which is assembled to each air passage of the lower plate and is connected with a suction pump; and a sensor which detects an air pressure in the interior of the bed and transmits a result of the detection to a controller which controls the operation of the suction pump, so the air pressure of the interior of the bed by the suction pump can be adjusted.

Abstract: A printing system including a computer device and an ink jet printer transmitting and receiving data with the computer device is disclosed. The large size ink jet printer includes a printer; an ink pump; a head controller controlling the operation of the printer head; a carriage with the printer head; a carriage driving part; a data path board receiving and analyzing the data and transferring a control signal to the head controller; an ink supply control board the ink pump; and an I/O controller board receiving the data from the computer device, the data path board and the ink supply control board and analyzing and transmitting the data, and the computer device including a RIP program converting an image/text signal into an image/text raster image data for printing; and a carriage driving part control program controlling the operation of the carriage driving part of the ink jet printer.

Abstract: An ink jet printer module has a module body, an ink inlet port, a washing liquid inlet port and a pneumatic inlet port connected with the main ink tank, the washing liquid tank and the pneumatic pump. A common flow path in the interior of the module body selectively communicates with either the washing liquid flow path or the washing liquid flow path. An ink opening and closing valve is provided at the module body. A pneumatic and washing liquid selection valve is provided in the module body An ink discharge port is provided in the module body discharges the ink of the ink flow path to the outside of the module body. A common discharge port is provided in the module body and discharges either the pneumatic or the washing liquid of the common flow path.

Abstract: A printing system formed of a computer device and a large size ink jet printer transmitting and receiving a data with the computer device is disclosed, which comprises said large size ink jet printer including a printer head injecting an ink on a printing object which is to be printed; an ink pump supplying an ink to the printer head; a head controller controlling the operation of the printer head; a carriage with the printer head; a carriage driving part moving the carriage in at least one direction; a data path board receiving and analyzing the data from the computer device and transferring a control signal to the head controller for controlling the printer head; an ink supply control board controlling the operation of the ink pump; and an I/O (Input and Output) controller board receiving the data from the computer device, the data path board and the ink supply control board and analyzing and transmitting the data, and the computer device including a RIP (Raster Image Process) program converting an image/te

Abstract: An ink cartridge recharge system includes an ink cartridge mount hole in which an ink cartridge is mounted. The ink cartridge mount hole includes an ink injection part in which an ink injection hole connected to a nozzle of the ink cartridge is formed. A magnetostrictive displacement transducer is connected to the ink injection hole through an ink supply tube and determines the charged amount of ink by sensing displacement of magnetic field due to displacement of an internal float. A positive pressure tank stores high pressure air by a compressor. A bulk cartridge is connected to one side of the magnetostrictive displacement transducer to supply ink to be charged. A negative pressure tank is connected to the ink injection hole of the ink cartridge mount hole through a vacuum tube.

Abstract: An ink recharge system capable of repeatedly charging a proper amount of ink in an ink cartridge using magnetostrictive displacement transducers and a method of recharging ink in the ink cartridge are provided. The ink cartridge recharge system for an inkjet printer includes a compressor and a positive pressure tank providing compression force for supplying the ink stored in magnetostrictive displacement transducers to an ink cartridge, magnetostrictive displacement transducers for charging a proper amount of ink, a vacuum pump and a negative pressure tank for making the inside of the ink cartridge vacuous, and a pneumatic tube divided from a positive pressure tank and a vacuum tube divided from a negative pressure tank connected to pneumatic regulators of the magnetostrictive displacement transducers through the pneumatic solenoid valve.

Abstract: A portable gas cooking range has a burner, a piezoelectric igniter therefor, a gas canister for supplying gas to the burner, an adjustable gas regulator for varying the flow of gas to the burner, and a flame failure safety device having a theremocouple located in close proximity to the burner and which is operably connected to a gas valve in the gas regulator. The gas valve is capable of opening and closing according to the electromotive force produced in use by the thermocouple, so as to shut off the flow of gas through the valve if the ignited burner is accidentally or inadvertently extinguished and, hence, prevent escape of gas from the burner when in a non-ignited condition.

Abstract: The present invention is directed to a method for providing a service provider number portability of a mobile phone number in which it is possible to change a mobile phone service provider without changing a mobile directory number (MDN) in a communication environment where the phone service providers use different intelligent network protocols. In the present invention, the intelligent network calls which uses different protocols are processed using a number portability database which supports the multi-protocols in order to change the service provider between the mobile phone service providers in which the mobile phone subscribers use different intelligent protocols.

Abstract: The present invention is directed to a method for providing a service provider number portability of a mobile phone number in which it is possible to change a mobile phone service provider without changing a mobile directory number (MDN) in a communication environment where the phone service providers use different intelligent network protocols. In the present invention, the intelligent network calls which uses different protocols are processed using a number portability database which supports the multi-protocols in order to change the service provider between the mobile phone service providers in which the mobile phone subscribers use different intelligent protocols.

Abstract: The present invention relates to a money service apparatus for an IMT-2000 network and a method of the same which implements the information concerning a location of an IMT-2000 ID card and a terminal and functions for indicating the amount of money at the current rate of the foreign currency to a subscriber's own country's currency, remitting payment, making money transfer, and delivering a written notice and public notice.