Abstract: Disclosed herein is a deposition apparatus with a guide roller for a long superconducting tape. The deposition apparatus has a supply reel which is provided in a vacuum chamber and rotated to supply the tape, a feed and deposition unit which is spaced apart from the supply reel and vacuum deposits a superconducting layer on the tape while feeding the tape, and a collection reel which is spaced apart from the feed and deposition unit and is rotated to collect the vacuum-deposited tape.

Abstract: Disclosed herein is a gradient thin film, formed on a substrate by simultaneously depositing different materials on the substrate using a plurality of thin film deposition apparatuses provided in a vacuum chamber, wherein the gradient thin film is formed such that the composition thereof is continuously changed depending on the thickness thereof by deposition control plates provided in the path through which the different materials move to the substrate. The gradient thin film is advantageous in that the thin film is formed by simultaneously depositing different materials using various deposition apparatuses, so that the composition thereof is continuously changed depending on the thickness thereof, with the result that the physical properties of a thin film are easily controlled and the number of deposition processes is decreased, and thus processing time and manufacturing costs are decreased, thereby improving economic efficiency.

Abstract: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip.

Abstract: A scanner includes a document feed plate on which one or more documents to be read are stacked, an image sensor disposed adjacent to the document feed plate to read a lower surface of the one or more documents, a plurality of document output rollers arranged vertically adjacent to each other to change a direction along which the read one or more documents proceed along a reverse C-shaped path and to output the read one or more documents through a document outlet, and a document output plate located above the document feed plate on which the output one or more documents are stacked. The plurality of document output rollers rotate in the same direction, and each of the document output rollers has a shaft that is a rotational center and a plurality of roller bodies arranged to be separated from one another along a lengthwise direction of the shaft.

Abstract: A nozzle chip cleaning apparatus of an inkjet printer with an improved supply/return structure for a cleaning solution for cleaning a nozzle chip includes a flexible bag to hold fluid and to contact a nozzle chip of an inkjet head. A lifting apparatus may move the flexible bag to be in contact with a surface of the nozzle chip. The nozzle chip cleaning apparatus employs a method in which a flexible bag wipes a surface of a nozzle chip cleaning solution.

Abstract: An inkjet image-forming apparatus includes an inkjet head having a length corresponding to a width of a paper and a nozzle unit on which a plurality of nozzles are formed, and a maintenance unit that is formed on a lower side of the inkjet head to reciprocally move in a lengthwise direction of the inkjet head to maintain the inkjet head, and includes a carriage and a development maintaining unit attachably and detachably installed on the carriage, wherein the development maintaining unit includes a washing unit that washes away foreign materials contaminating the nozzle unit, using solvent waves generated by applying ultrasonic waves of an ultrasonic wave generation unit to a solvent contained in the washing unit, a wiping blade that wipes the foreign materials and the solvent remaining on a surface of the nozzle unit by contacting with the nozzle unit, and an ink container that contains ink ejected from the nozzles by a spitting operation of the nozzles.

Abstract: A scanning apparatus and a method of preventing damage of gear may include a driving roller to transfer a document sheet while being in contact with a scanning glass of a reading unit and configured to be spaced-apart from the scanning glass so that a jammed sheet can be removed, a driving gear joined to the driving roller, a power transmitting gear to be selectively engaged with the driving gear so as to supply a rotational force of a driving motor to the driving roller, a first sensor installed at a front side of the driving roller to detect a document sheet, a controlling portion to control a scanning process, wherein the controlling portion controls the power transmitting portion to be spaced-apart from the driving gear when the first sensor cannot detect the document sheet.

Abstract: A method and apparatus for manufacturing superconducting tape through an integrated process, including the steps of: heat-treating a substrate wound on a drum in a reaction chamber; continuously depositing components, constituting a buffer layer, a superconducting layer, a contact resistance layer, and a protective layer of the superconducting tape, which are supplied from a deposition chamber, on the substrate; and heat-treating the substrate deposited with the components.

Abstract: An ink supplying/blocking device of an inkjet printer selectively supplies or blocks flow of ink of an ink tank to a channel unit in which print head is supported. The device may include a negative pressure generating unit to generate a negative pressure at the print head and thus supply a desired amount of ink to the print head through the channel unit; an ink supply tube to connect the negative pressure generating unit and the ink tank; a sealing unit to selectively open and close the ink supply tube; and a sensor to detect an operation status of the sealing unit. An image forming apparatus having the same is also disclosed.

Abstract: An inkjet printer is provided including a printing head which includes a nozzle unit with a length that corresponds to a width of paper to eject ink on the paper at a fixed position for printing an image. A capping unit ascends and descends between capping and uncapping positions. A guiding element is located below the printing head to support the paper and has an aperture through which the capping unit may access the nozzle unit. A moving guide moves between a first position to open the aperture such that the capping unit may be moved to the capping position and a second position to block the aperture.

Abstract: An inkjet image forming apparatus capable of circulating ink provided from an ink cartridge includes at least one pump disposed at an ink cartridge that is detachably disposed to a main body frame, at least one pump driving unit to drive the at least one pump, and a driving motor to drive the at least one pump driving unit if rotating in a first direction. The driving motor drives another part of the image forming apparatus if rotating in a second direction.

Abstract: Disclosed is a long-tape deposition apparatus for depositing specific substance on superconductive tape. The apparatus includes a drum having a helically-shaped guide groove formed on the outer surface thereof and a strip of tape wound along the guide groove and disposed in a vacuum chamber, a deposition source disposed to be distanced from the drum, a supply reel and a retreat reel disposed at respective sides of a shaft of the drum for supply and retreat of the tape, respectively, in which when the drum rotates, specific substance from the deposition source is deposited on the surface of the tape and at the same time the tape is continuously supplied and retreated by the supply reel and the retreat reel, and a slip-roller installed to extend along longitudinal direction of the drum, to be near the circumferential surface of the drum and to protrude from the outer surface of the drum, the slip-roller which rotates along moving direction of the tape enabling the tape to slip over the guide groove of the drum.

Abstract: An inkjet image forming apparatus is provided. The image forming apparatus includes an inkjet printhead that prints an image by ejecting ink on paper and has an ink refill hole through which the inkjet printhead is refillable with ink. A cover is disposed over the ink refill hole. A door covers part of a housing when closed and exposes the covered part of the housing when opened so that the inkjet printhead is accessible. A sensor detects whether the door is open or closed and outputs a door open signal or a door closed signal based on the detection results. An electrical actuator is coupled to the cover and lifts up or down the cover in response to the door open signal or the door closed signal.

Abstract: An image forming apparatus and a method of driving the image forming apparatus. The image forming apparatus includes, an ink cartridge including a plurality of print heads arranged in a width direction of a paper sheet crossing a direction along which the printing medium is transferred, a wiping unit moving in the transfer direction to wipe nozzle surfaces of the plurality of print heads, and a controller independently driving the plurality of print heads which have been wiped by the wiping unit, so that color nozzles of the plurality of print heads spray predetermined amounts of inks.

Abstract: An inkjet image forming apparatus includes an inkjet head including a nozzle portion having a length in a main scanning direction that is at least equal to a width of a sheet of paper, a platen to move between a printing position where the platen faces the nozzle portion and supports a rear surface of the paper, and a maintenance position spaced-apart from the printing position in a sub-scanning direction, a wiping unit including a wiper to clean the nozzle portion, and a link arm having a first end portion that is rotatably connected to the wiping unit, and a second end portion that is rotatably connected to the platen. A first angle formed by a first line that connects the wiper to the first end portion and a second line that connects the first end portion and the second end portion when the platen is located at the printing position is smaller than a second angle between the first line and the second line when the platen is located at the maintenance position.

Abstract: An inkjet image forming apparatus includes an inkjet head including a nozzle portion having a length in a main scanning direction that is at least equal to a width of a printing medium, a conveying unit to convey the printing medium, a driving motor to drive the conveying unit, and a cap member to cap and uncap the nozzle portion, and the conveying unit and the cap member are driven by the driving motor.

Abstract: An inkjet image forming apparatus including an inkjet head including a nozzle portion having a length in a main scanning direction that is at least the same as a width of a paper to be fed therein, a platen to move between a printing position facing the nozzle portion and to support a rear surface of paper and a maintenance position that is apart from the printing position in a sub-scanning direction, and including a receiving portion to receive waste ink, a waste ink container, and a pumping unit to operate by linking with a moving operation of the platen to pump the waste ink from the receiving portion to the waste ink container.

Abstract: An inkjet image forming apparatus includes an inkjet head having a nozzle unit having a length in a main scanning direction corresponding to a width of a printing medium, a capping unit to move to a capping position to cap the nozzle unit and an uncapping position for a printing. The capping unit includes a cap member having a spitting hole and covering the nozzle unit, an absorbing member to absorb an ink passing through the spitting hole, and a support member disposed at a position where the cap member and the absorbing member are installed, the support member receiving the ink spitted.

Abstract: An inkjet image forming apparatus. The inkjet image forming apparatus includes a platen to support a bottom side of paper. The platen includes a plurality of supporting portions facing the inkjet head to support a bottom side of a paper and a plurality of depressed portions depressed with a downward slope from sides of the supporting portions.

Abstract: A registration device usable with an image forming apparatus includes a registration roller, a registration lever to rotate between an alignment position to block and align a leading edge of a paper sheet supplied to the registration roller and an opening position to allow the paper sheet to be fed beyond the registration lever, and a resilient member to resiliently urge the registration lever to rotate into the alignment position. The resilient member has a center portion and first and second arms extending from the center portion. An end of the first arm is coupled to the registration lever and the resilient member is pivotable about an end of the second arm.