Patent application number | Description | Published |
20090027703 | IMAGE FORMING DEVICE AND METHOD THEREOF - An image forming device having a plurality of developing units is provided. The image forming device includes a control unit to determine whether to perform an auto color registration (ACR) with respect to one or more of the plurality of developing units, and a print engine unit to perform an ACR of the determined developing units. | 01-29-2009 |
20090103961 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD THEREOF - An image forming apparatus and an image forming method thereof. The image forming apparatus includes an image forming part which forms a color image on a printing medium, a pickup roller which picks up the printing medium, and a controller which controls the pickup roller to try to pick up the printing medium if image forming for a first color among a plurality of colors is completed, and controls the image forming part to form an image corresponding to a second color among the plurality of colors after trying to pick up the printing medium. | 04-23-2009 |
20090122337 | HOST APPARATUS FOR AN IMAGE FORMING APPARATUS AND AN IMAGE PRINTING METHOD THEREOF - An image printing method of a host apparatus connected to an image forming apparatus, the method includes selecting an image to be successively printed over a plurality of recording pages, disposing the image to be successively printed on at least one of top, bottom, right and left positions of at least one of the plurality of recording pages, generating printing data of the image to be successively printed over the plurality of recording pages, and transmitting the printing data to the image forming apparatus. | 05-14-2009 |
20110097112 | IMAGE FORMING APPARATUS AND PRINTING METHOD USABLE WITH THE SAME - A printing method usable with an image forming apparatus includes initiating driving of a plurality of photosensitive bodies and a transfer belt, printing an image by transferring toner images formed on the plurality of photosensitive bodies to the transfer belt and finally transferring the toner images, which are transferred to the transfer belt, to paper, and stopping the driving of the plurality of photosensitive bodies and the transfer belt after the printing is completed. The initiating of the driving of the plurality of photosensitive bodies and the transfer belt includes applying drive initiating signals with a time interval to a first driving unit and a second driving unit to respectively drive the plurality of photosensitive bodies and the transfer belt to enable the plurality of photosensitive bodies and the transfer belt to simultaneously begin rotating/moving. | 04-28-2011 |
20130015804 | IMAGE FORMING APPARATUS, MOTOR CONTROLLING APPARATUS, METHOD FOR CONTROLLING MOTORAANM KIM; Gun-hoAACI SeoulAACO KRAAGP KIM; Gun-ho Seoul KRAANM Lee; Duk-youngAACI Suwon-siAACO KRAAGP Lee; Duk-young Suwon-si KR - An image forming apparatus includes an engine unit which is used to perform an image forming job; a controller which controls an operation of the engine unit; a step motor which operates the engine unit; a storage unit which stores an acceleration table including pulse per second (PPS) information of each of driving speeds of the step motor; and a driving controller which generates a driving signal of the step motor according to a control command of the step motor which is received from the controller. The driving controller generates the driving signal by using PPS information corresponding to a speed change section of the acceleration table corresponding to the control command. | 01-17-2013 |
20140112670 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image forming apparatus and a method of controlling the same is provided. A plurality of cells formed at the surface of a transfer roller is filled with a developing agent to initialize the transfer roller, thereby suppressing contamination and electrical non-uniformity of the transfer roller. A method of controlling an image forming apparatus includes determining whether a transfer roller mounted in the image forming apparatus is a new one and, upon determining that the transfer roller is a new one, feeding a developing agent to the surface of the transfer roller and filling a plurality of cells formed at the surface of the transfer roller with the developing agent to initialize the transfer roller. | 04-24-2014 |