Abstract: A post-processing device includes a paper alignment tray on which a plurality of papers is aligned and a stapleless binder including a stapleless binding portion to compress and bind the plurality of papers and a nozzle in the stapleless binding portion that supplies water vapor to the plurality of papers.

Abstract: The present invention provides a clothing treatment apparatus (10) comprising: a heating unit (100) for heating a fluid; a movable spray unit (200) which is installed to be movable in left and right direction, and sprays the heated fluid; a flow path member (300) which is connected to the heating unit (100) and the movable spray unit (200) and supplies the heated fluid to the movable spray unit (200); and a driving unit (400) for moving the movable spray unit (200) in the left and right direction. The present invention also provides the clothing treatment apparatus (10) including the flow path member (300) bent at an angle of a specific range per unit member (310) or unfolded. The present invention also provides the clothing treatment apparatus (10) including a body portion spreading unit (1500) for spreading a body portion of clothing.

Abstract: A gear detection switch apparatus may include a detection unit into which a magnetization target is inserted at a front part thereof, the detection unit having a printed circuit board (PCB), a front housing having an open front end and into which the detection unit is inserted so that a frontal end of the PCB is exposed through the open front end, a rear housing connected to a rear side of the front housing, wherein a connection boundary between the front and rear housings is molded with a molding material, a Hall sensor device coupled to the exposed frontal end of the PCB, and a finishing closure molded over the open front end of the front housing.

Abstract: An image forming apparatus in which developers are detachably coupled to a main body. The image forming apparatus includes: a developer mount member on which the developers are mounted and that is attachable to and detachable from the main body; an input contact member disposed on the developers; a power supply unit that is provided in the main body; an output contact member that is disposed in the main body to face a front end of the developer mount member in a mount direction in which the developer mount member is mounted and is electrically connected to the power supply; and intermediate contact members disposed on the front end of the developer mount member in the mount direction and are electrically connected to a respective input contact member, and electrically contacts the output contact member as the developer mount member is mounted.

Abstract: A jam removing device, an apparatus including a jam removing device, and a method of removing a jam are provided. The jam removing device includes a first door member installed on an in/out path of a tray mounted with a developing unit and is opened or closed with respect to an apparatus body, a second door member installed in the apparatus body in an opposite direction to the first door member and is opened or closed with respect to the apparatus body, a guide unit including a first guide that guides insertion/withdrawal of the tray with respect to the apparatus body and a second guide that guides the first guide so that the developing unit approaches or separates from a transfer unit, a first link unit connecting the first door member and the first guide, and a second link unit connecting the second door member and the first guide.

Abstract: A gear detection switch apparatus may include a detection unit into which a magnetization target is inserted at a front part thereof, the detection unit having a printed circuit board (PCB), a front housing having an open front end and into which the detection unit is inserted so that a frontal end of the PCB is exposed through the open front end, a rear housing connected to a rear side of the front housing, wherein a connection boundary between the front and rear housings is molded with a molding material, a Hall sensor device coupled to the exposed frontal end of the PCB, and a finishing closure molded over the open front end of the front housing.

Abstract: A printing medium finishing unit including a plurality of pressing modules each configured to deform rear ends of folded printing media into a different shape by pressing the rear ends and an image forming apparatus having the same.

Abstract: An image forming apparatus and method are provided. The apparatus includes a control unit controlling a feeder unit to feed a printing paper in a long-edge feed type or a short-edge feed type in accordance with a print mode set for print data. The control unit controls the feeder unit to feed the printing paper in the long-edge feed type upon a high resolution print mode being set and in the short-edge feed type upon a low resolution print mode being set.

Abstract: A jam removing device, an apparatus including a jam removing device, and a method of removing a jam are provided. The jam removing device includes a first door member installed on an in/out path of a tray mounted with a developing unit and is opened or closed with respect to an apparatus body, a second door member installed in the apparatus body in an opposite direction to the first door member and is opened or closed with respect to the apparatus body, a guide unit including a first guide that guides insertion/withdrawal of the tray with respect to the apparatus body and a second guide that guides the first guide so that the developing unit approaches or separates from a transfer unit, a first link unit connecting the first door member and the first guide, and a second link unit connecting the second door member and the first guide.

Abstract: Disclosed are a bookbinding unit and an image forming apparatus having the same. The bookbinding unit includes a bookbinding unit main body, a pair of stack trays disposed in the bookbinding unit main body so as to support print media on the upper surfaces of the stack trays and a folding knife movable in the space between the pair of the stack trays to fold the print media on the stack trays and to move the folded print media into the space between the pair of the stack trays. The pair of the stack trays is rotatable in conformity with the movement of the print media into the space between the stack trays to provide a surface contact guiding of the folded print media.

Abstract: An image forming apparatus in which developers are detachably coupled to a main body. The image forming apparatus includes: a developer mount member on which the developers are mounted and that is attachable to and detachable from the main body; an input contact member disposed on the developers; a power supply unit that is provided in the main body; an output contact member that is disposed in the main body to face a front end of the developer mount member in a mount direction in which the developer mount member is mounted and is electrically connected to the power supply; and intermediate contact members disposed on the front end of the developer mount member in the mount direction and are electrically connected to a respective input contact member, and electrically contacts the output contact member as the developer mount member is mounted.

Abstract: An image forming apparatus and method are provided. The apparatus includes an input unit receiving an input of print data, a print unit performing printing of the input print data, a feeder unit feeding a printing paper to the print unit, and a control unit controlling the feeder unit to feed the printing paper in a long-edge feed type or a short-edge feed type in accordance with a print mode set for the print data.

Abstract: A solid ink jet image forming apparatus includes a printing unit which fires melted solid ink onto an image on a printing medium for printing, and an ink supplying unit which contains solid ink in a lateral direction of the printing unit. In the case where the solid ink jet image forming apparatus includes a scanning unit reading an image from a document, a user can simply and easily load the solid ink without moving the scanning unit, so that the solid ink jet image forming apparatus has improved installation stability and a compact size.

Abstract: Disclosed are a bookbinding unit and an image forming apparatus having the same. The bookbinding unit includes a bookbinding unit main body, a pair of stack trays disposed in the bookbinding unit main body so as to support print media on the upper surfaces of the stack trays and a folding knife movable in the space between the pair of the stack trays to fold the print media on the stack trays and to move the folded print media into the space between the pair of the stack trays. The pair of the stack trays is rotatable in conformity with the movement of the print media into the space between the stack trays to provide a surface contact guiding of the folded print media.

Abstract: An image forming apparatus can include a first developing portion having first to fourth developing devices containing yellow, magenta, cyan, and black developers, respectively, each of the first to fourth developing devices being disposed apart from adjacent developing devices of the first to fourth developing devices at a regular interval, a second developing portion to include at least one auxiliary developing device to supplement colors of the first developing portion, and an image carrier to convey images of the first and second developing portions, wherein an interval between the first and second developing portions is a multiple of the regular interval between the first to fourth developing devices.

Abstract: An ink jet printer having a print head unit on which ink ejecting nozzles are arranged. The ink jet printer includes an ink supplying unit having a solid ink storage unit to store solid ink, and a heating unit to melt the solid ink into liquid ink, an ink reservoir to accommodate and store the liquid ink from the ink supplying unit, which is extended so as to correspond to the length of the print head unit, and a heater to heat the liquid ink, disposed in the lengthwise direction of the ink reservoir.

Abstract: A solid ink loading apparatus, including an ink stick feed bin having a plurality of feed channels that receive a plurality of ink sticks by colors, an ink stick feed bin cover to open and close the ink stick feed bin, a yoke interlockingly operating with the ink stick feed bin cover, melt plates installed at one end of the feed channels to melt the ink sticks, and elastic push units elastically connected to the yoke to push the ink sticks in the feed channels towards the melt plates, wherein the plurality of feed channels are arranged in a staggered formation with respect to at least one other feed channel in the longitudinal direction.

Abstract: An image forming apparatus includes an image forming apparatus body, a printing engine installed in the image forming apparatus body to print an image on a printing medium supplied to the printing engine, a printing medium supply device coupled to the image forming apparatus body to load the printing medium therein for supplying the printing medium to the printing engine, a pickup device to pick up the printing medium loaded in the printing medium supply device, a conveyance roller to convey the picked-up printing medium to the printing engine via rotation thereof, and a plurality of pressure rollers installed around the conveyance roller to press the printing medium in a normal direction of a surface of the conveyance roller during conveyance of the printing medium.

Abstract: A solid ink jet image forming apparatus includes a printing unit which fires melted solid ink onto an image on a printing medium for printing, and an ink supplying unit which contains solid ink in a lateral direction of the printing unit. In the case where the solid ink jet image forming apparatus includes a scanning unit reading an image from a document, a user can simply and easily load the solid ink without moving the scanning unit, so that the solid ink jet image forming apparatus has improved installation stability and a compact size.

Abstract: An image drum presses and transfers an ink image formed on the surface thereof onto an image receiving medium, and an image system having the same of a solid inkjet image forming apparatus. The image drum includes a first cylindrical body which forms an image on the surface thereof and transfers the image onto an image receiving medium by pressure; a heat generator formed in the first cylindrical body which heats the first cylindrical body; a space part formed between the first cylindrical body and the heat generator; and including a certain amount of operational fluid transferring heat between the first cylindrical body and the heat generator. The operational fluid is contained between the first cylindrical body and the heat generator. Accordingly, when the image drum is heated, the surface temperature of the image drum can be precisely and uniformly controlled, power consumption decreases, and heat is efficiently transmitted.