Patent application number | Description | Published |
20080226337 | DEVELOPING CARTRIDGE, IMAGE FORMING APPARATUS HAVING THE SAME, AND METHOD OF DETACHING DEVELOPING CARTRIDGE FROM IMAGE FORMING APPARATUS - A developing cartridge usable with an image forming apparatus includes a developing cartridge housing, and a handle disposed on one side of an upper surface of the developing cartridge housing, and having a gripping portion formed thereon to make an acute angle with the upper surface of the developing cartridge housing. The gripping portion is fixed to the developing cartridge housing by a pair of support portions, or is hinged with the developing cartridge housing. | 09-18-2008 |
20080226338 | DEVELOPING CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD OF MOUNTING/SEPARATING DEVELOPING CARTRIDGE ON/FROM IMAGE FORMING APPARATUS - An image forming apparatus having a developing cartridge includes a lower main body, and a developing cartridge installed in the lower main body and including a photosensitive medium. An upper main body may be separably installed on an upper side of the lower main body and includes an upper pressing member to press the developing cartridge downward. A lower pressing member, installed in the lower main body, is positioned to press the developing cartridge upward. In the case where a rotation axis of the photosensitive medium of the developing cartridge is set as a rotation center, a moment of force is applied to the developing cartridge by the upper pressing member and an opposing moment of force being is applied to the developing cartridge by the lower pressing member in the opposite direction. | 09-18-2008 |
20080253798 | IMAGE FORMING APPARATUS - An image forming apparatus including: a first body including a developing unit to perform an image forming operation on a print medium, and a second body provided above the first body to pivot between a closed position and an open position in relation to the first body, the second body including a light emitting unit, wherein the light emitting unit is directly above the developing unit when the second body is in the closed position, and the developing unit is exposed to an outside of the image forming apparatus when the second body is in the closed position. A user can place the image forming apparatus on a desktop, which increases convenience in using the apparatus. Additionally, a specialized image forming apparatus can be provided to a user who mainly wants to print and copy in small quantities. | 10-16-2008 |
20090027744 | IMAGE READING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image reading apparatus capable of changing a main reading unit at an appropriate time point such that a plurality of reading units can be equally used, and a method of controlling the same. The image reading apparatus includes an automatic document feeder, a first reading unit to read a first side of a document fed by the automatic document feeder and to function as a main reading unit, a second reading unit to read a second side of the document fed by the automatic document feeder; and a control unit to change the main reading unit from the first reading unit to the second reading unit if the number of times L | 01-29-2009 |
20090067872 | DEVELOPING DEVICE, MEMORY UNIT THEREOF, AND IMAGE FORMING APPARATUS - A developing device to prevent damage of a memory unit and poor connection between terminals of the memory unit and a main body of an image forming apparatus, by improving a mounting position of the memory unit. The developing device is removably mounted to a main body of the image forming apparatus. The memory unit includes terminals exposed through a rear side of the developing device. The memory unit is disposed closer to a power reception unit formed at one side of the developing device than to a driving force reception unit formed at an other side of the developing device. | 03-12-2009 |
20090074447 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME - A developing device and an image forming apparatus having the same include a frame having a knob part, a photosensitive body provided in front of the knob part with respect to a first direction of mounting the developing device, and a rotation guide part provided in front of the photosensitive body with respect to the first direction, and to guide a rotational motion of the developing device. When the developing device is removed from the image forming apparatus, the knob part is rotated upward. A first protrusion is provided on a side surface of the frame to determine a mounting position of the developing device. When the knob part is rotated upward, the first protrusion is rotated in the same direction as the knob part. Accordingly, the developing device has an improved mounting/removing structure adequate to compactly manufacture the image forming apparatus, and improves handling convenience in mounting and removing the developing device. | 03-19-2009 |
20090274483 | IMAGE FORMING APPARATUS - An image forming apparatus includes a main body in which a cassette unit to accommodate a plurality of sheets of paper, a toner cartridge unit to contain toner, an imaging unit to flow into the toner contained in the toner cartridge unit, a transfer unit which transfers an image formed by the imaging unit onto the paper, and a waste toner collection unit to collect waste toner discharged from the imaging unit and the transfer unit, and a control panel unit to receive user commands, wherein at least four of the cassette unit, the toner cartridge unit, the imaging unit, the transfer unit, the waste toner collection unit, and the control panel unit are disposed so as to be accessed by a user in the same direction. | 11-05-2009 |
20100060914 | IMAGE FORMING APPARATUS TO HAVE PROCESSING APPARATUS AND PROCESSING METHOD OF IMAGE FORMING APPARATUS - An image forming apparatus to have a processing apparatus includes a plurality of main developing apparatuses to form an image on a printing medium, an auxiliary developing apparatus to form an image on the printing medium using at least one developer different from developers used in the plurality of main developing apparatuses, a processing apparatus to perform a processing operation at the printing medium, and a control portion to control the main developing apparatuses and the auxiliary developing apparatus to form the images on the printing medium and to control the processing apparatus to form a printing medium processing region at which the processing operation is performed. The control portion estimates a size or area the printing medium processing region according to a processing condition, and does not control the auxiliary developing apparatus to form the image on at least some region of the estimated size or area of the printing medium processing region. | 03-11-2010 |
20100061742 | IMAGE FORMING APPARATUS - An image forming apparatus including cyan (C), magenta (M), yellow (Y), and black (K) developing units using a C developer, a M developer, a Y developer, and a K developer, respectively; at least one auxiliary developing unit using a developer other than the C, M, Y, and K developers; a plurality of photosensitive media formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively; a plurality of cleaning members formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively, so as to clean surfaces of the plurality of photosensitive media; and waste developer storage units formed in the C, M, Y, and K developing units and the auxiliary developing unit, respectively, so as to collect waste developer cleaned by the plurality of cleaning members. The developer storage unit and waste developer storage unit of at least one of the C, M, Y, and K developing units, in which there is a large amount of developer consumed and a large amount of waste developer generated, are larger than the developer storage unit and waste developer storage unit of the auxiliary developing unit. | 03-11-2010 |
20100061744 | IMAGE FORMING APPARATUS AND METHOD TO CLEAN STAINED PORTION OF IMAGE FORMING APPARATUS - An image forming apparatus including a case, a printing medium feeding unit disposed in the case to feed printing media, an image forming unit disposed in the case to form images on a printing medium fed from the printing medium feeding unit using developer and to include at least one portion being stained when the images are formed, and a control portion to control the image forming unit to form the images in a plurality of print modes. The control portion sends a cleaning command to clean the at least one stained portion when the amount of the developer used by the image forming unit reaches a reference amount of the developer or when the number of the printing media supplied by the printing medium feeding unit reaches a reference value of the number of the printing media. | 03-11-2010 |
20100142013 | IMAGE READER FOR USE IN AN IMAGE FORMING APPARATUS, AND CONTAMINATION CHECK METHOD OF GUIDE FILM FOR THE SAME - An image reading apparatus for use in an image forming apparatus includes a document glass installed on an upper side of the image reading body on which a document is placed; an image reading sensor installed under the document glass for stopping after being transferred to a predetermined position or for reciprocating in a straight direction parallel to the document glass; a cover for opening and closing the upper surface of the document glass; an automatic document feeder (ADF) for feeding the document to the position to which the image reading sensor is fixed; a document discharging plate for discharging the document fed through the automatic document feeding unit; first and second guide members for guiding to allow the document fed through the automatic document feeding unit to be discharged to the document discharging plate, the first and second guide members being installed at a predetermined interval to expose the document toward the image reading sensor; and a guide film installed to cover the interval between the first and second guide members for guiding to allow the document to be discharged to the document discharging plate. By this structure, a size of the image forming apparatus can be reduced. | 06-10-2010 |
20100221033 | DEVELOPING DEVICE, MEMORY UNIT THEREOF, AND IMAGE FORMING APPARATUS - A developing device to prevent damage of a memory unit and poor connection between terminals of the memory unit and a main body of an image forming apparatus, by improving a mounting position of the memory unit. The developing device is removably mounted to a main body of the image forming apparatus. The memory unit includes terminals exposed through a rear side of the developing device. The memory unit is disposed closer to a power reception unit formed at one side of the developing device than to a driving force reception unit formed at an other side of the developing device. | 09-02-2010 |
20110120681 | Heat exchanger and air conditioner having the same - A heat exchange fin in a heat exchanger is disposed between two refrigerant pipes spaced apart from each other includes a guide protrusion including first inclined planes inclined upward along opposite sides of a center line of a refrigerant pipe row in a symmetric fashion and second inclined planes inclined downward from upper ends of the first inclined planes, and the first inclined planes and the second inclined planes are provided with rubber members, thereby improving heat exchange efficiency. | 05-26-2011 |
20120044513 | Image reader for use in an image forming apparatus, and contamination check method of guide film for the same - An image forming apparatus having an image reading table includes a document glass installed on an upper side of the image reading table, to support a document; an image reading sensor installed under the document glass, to perform an image reading operation; a cover to selectively cover the document glass; an automatic document feeder (ADF) to feed a document along an image reading path, past the image reading sensor; a document discharging plate to support a document discharged from the ADF; a first guide member; a guide film attached to the first guide member; and an image forming part to form the image on a printable medium. The guide film includes a first guide film portion and a second guide film portion, the first guide film portion is in planar contact with the document glass and the second guide film portion guides the document toward the ADF. | 02-23-2012 |
20120103582 | Heat exchanger and micro-channel tube thereof - A heat exchanger having a structure in which micro-channel tubes are respectively fitted into both sides of corresponding flat fins for heat exchange, thereby achieving enhancements in drainage and heat transfer performance. The heat exchanger includes a first header extending vertically and connected with an inflow tube and an outflow tube, a second header spaced apart from the first header by a desired distance and arranged parallel to the first header, and a plurality of flat micro-channel tubes arranged horizontally while being vertically spaced apart from one another by a desired clearance and arranged in a front row and a rear row between the first header and the second header. Micro-channels are formed in each of the micro-channel tubes. | 05-03-2012 |
20120103583 | Heat exchanger and fin for the same - A heat exchanger having a structure in which micro-channel tubes are respectively fitted into both sides of corresponding flat fins for heat exchange, thereby achieving enhancements in drainage and heat transfer performance. The heat exchanger includes a first header connected with an inflow tube and an outflow tube, a second header spaced apart from the first header by a desired distance and arranged parallel to the first header, a plurality of flat micro-channel tubes arranged in a front row and a rear row between the first header and the second header, and a plurality of plate type fins. Each of the micro-channel tubes includes micro-channels. Each of the fins includes slots arranged in a front row and a rear row to respectively fit the front row and rear row micro-channel tubes into the slots. | 05-03-2012 |
20120103587 | Heat exchanger - A heat exchanger includes a refrigerant pipe in which a refrigerant flows and a heat exchanger fin coupled to the outer circumference of the refrigerant pipe. The heat exchanger fin includes a plate, a protrusion protruding from the plate, slits disposed at opposite sides of the protrusion to guide air to the protrusion, and a louver unit provided at the protrusion to perform heat exchange with the air having passed through the slits. | 05-03-2012 |
20120224884 | IMAGE FORMING APPARATUS HAVING PIVOTABLE UPPER BODY - An image forming apparatus including: a first body including a developing unit to perform an image forming operation on a print medium, and a second body provided above the first body to pivot between a closed position and an open position in relation to the first body, the second body including a light emitting unit, wherein the light emitting unit is directly above the developing unit when the second body is in the closed position, and the developing unit is exposed to an outside of the image forming apparatus when the second body is in the closed position. A user can place the image forming apparatus on a desktop, which increases convenience in using the apparatus. Additionally, a specialized image forming apparatus can be provided to a user who mainly wants to print and copy in small quantities. | 09-06-2012 |
20120243062 | IMAGE READING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image reading apparatus includes an automatic document feeder, a first reading unit to read a first side of a document fed by the automatic document feeder and to function as a main reading unit, a second reading unit to read a second side of the document fed by the automatic document feeder; and a control unit to operate the first and second reading units in order to perform an ADF two-sided reading mode. The control unit determines a point in time when the main reading unit is changed, based on a frequency in use of the ADF two-sided reading mode, and changes the main reading unit to the second reading unit at the determined point in time. | 09-27-2012 |
20140374077 | HEAT EXCHANGER AND MANUFACTURING METHOD THEREOF - A heat exchanger which may be continuously mass-produced by press-fitting heat exchange fins into refrigerant tubes and a manufacturing method thereof. The manufacturing method includes processing a metal sheet into a plurality of rows of heat exchange fins, transferring the plurality of rows of heat exchange fins through a transfer apparatus, dividing the plurality of rows of heat exchange fins into heat exchange fins in odd-numbered rows and heat exchange fins in even-numbered rows and integrating the heat exchange fins in odd-numbered rows and even-numbered rows through integration apparatuses, vertically standing and aligning the heat exchange fins in odd-numbered rows and even-numbered rows, separating the heat exchange fins in odd-numbered rows and even-numbered rows into a number of heat exchange fins, which may be simultaneously press-fitted into refrigerant tubes, through separation apparatuses, and press-fitting the separated heat exchange fins into the refrigerant tubes. | 12-25-2014 |