Patent application number | Description | Published |
20080213012 | DISCHARGE GUIDE AND IMAGE FORMING APPARATUS HAVING THE SAME - A discharge guide of an image forming apparatus. The discharge guide includes: a guide body disposed between a fixing unit and a discharging unit of the image forming apparatus; and a guide member disposed on the guide body. The guide member includes a guide edge, which forms different amounts of gap with a central portion end portions of a heating roller of the fixing unit. | 09-04-2008 |
20090060549 | FUSING SYSTEM AND CONTROL METHOD THEREOF - A fusing system includes: a fusing unit which comprises a fusing belt which rotates around outer surfaces of at least two rollers which are distanced from each other, and a pressing roller which presses a printing medium together with the fusing belts and fuses an image which is transferred to the printing medium; a heat source which receives power to generate heat, and is mounted inside at least one of the two rollers; a driving source which drives at least one of the two rollers; a sensing unit which senses a surface temperature of the fusing belt; and a control unit which controls the heat source and the driving source so that the fusing belt can be driven when the temperature of the fusing unit increases if a printing order is applied. | 03-05-2009 |
20090087241 | Paper discharge device and image forming apparatus having the same - A paper discharge device and an image forming apparatus having the same are provided. In the paper discharge device, the paper discharge roller has a non-uniform diameter extending in a longitudinal direction and the idle roller contacts with the paper discharge roller in the longitudinal direction of the paper discharge roller so that the print paper unfolds and discharges utilizing a velocity differential at a nip between the paper discharge roller and the idle roller. | 04-02-2009 |
20100061766 | IMAGE FORMING APPARATUS - 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. | 03-11-2010 |
20100133736 | BOOKBINDING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - 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. | 06-03-2010 |
20100182393 | LIGHT SCANNING UNIT AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A light scanning unit and an image forming apparatus having the same. The light scanning unit to form an electrostatic latent image corresponding to image information on a photosensitive body may include a light source, a deflector to deflect light generated from the light source in a main scanning direction, an imaging lens to focus deflected light to the photosensitive body, and at least a reflection mirror to change a traveling direction of light. A deviation of light quantity generated in a main scanning direction by a light quantity ratio generated by internal absorption of the imaging lens and a light quantity ratio generated by a polarization state of light may be compensated for by the reflection mirror. | 07-22-2010 |
20110176848 | IMAGE FORMING APPARATUS AND METHOD THEREOF - An image forming apparatus having an improved structure to enable a user to conveniently operate the image forming apparatus at a front of the image forming apparatus, and a method thereof. The image forming apparatus includes a main body formed with a discharge port at a front portion, a printing unit mounted inside the main body and disposed adjacent to a front panel of the main body, a feeding unit to feed paper printed by the printing unit toward a rear panel of the main body, and a discharge reversal unit to reverse a moving direction of the paper fed by the feeding unit to feed the paper to the discharge port. A sensor to detect a moving position of the paper and a paper guide guiding movement of the paper is mounted between the feeding unit and the discharge reversal unit. | 07-21-2011 |
20120070191 | DEVELOPMENT DEVICE ATTACHMENT UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - An image forming apparatus includes a guide member to guide movement of a developing device receiving member, which receives a plurality of developing devices, between the exterior and the interior of an image forming apparatus body. The guide member supports the developing device receiving member to enable rotation of the developing device receiving member within the body. | 03-22-2012 |
20120099914 | Image forming apparatus and method for controlling the same - 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. | 04-26-2012 |
20130121719 | IMAGE FORMING APPARATUS - 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. | 05-16-2013 |
20130129382 | IMAGE FORMING APPARATUS - An image forming apparatus capable of easily achieving installation of developing units on a developing tray is disclosed. The disclosed image forming apparatus includes a tray section, a plurality of developing units each provided with guide protrusions, and a developing tray including a plurality of supports to support the guide protrusions of the developing units, and a plurality of guides each adapted to guide a corresponding one of the guide protrusions to a corresponding one of the supports. The guides have widths gradually increasing in a direction from a first end of the tray section to a second end of the tray section, respectively. | 05-23-2013 |
20140169854 | IMAGE FORMING APPARATUS CONTROLLING FEEDING OF LONG-EDGE AND SHORT EDGE PRINTING PAPER AND METHOD FOR CONTROLLING THE SAME - 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. | 06-19-2014 |