Abstract: A method of performing a Wi-Fi Direct connection of a mobile device, including: determining a first device with which Wi-Fi Direct connection is to be performed; determining whether the mobile device has been Wi-Fi Direct connected to the first device; and when the mobile device has been Wi-Fi Direct connected to the first device, performing a Wi-Fi Direct connection to the first device based on stored connection information, wherein when the mobile device is Wi-Fi Direct connected to the first device, the connection information is automatically stored.

Abstract: Provided are a device and method for controlling a paper interval in a paper feeder of an image forming apparatus, and an image forming apparatus including the device. The device includes: a leading edge sensor configured to detect a leading edge of a sheet of paper when the sheet of paper is picked up and fed as a printing medium; a feed unit configured to accelerate the sheet of paper; and a control unit. If the sheet of paper arrives late at a paper sensing position of the leading edge sensor, the control unit measures a travel time during which the sheet of paper is fed to the paper sensing position, and according to the measured travel time, the control unit varies a time point at which the sheet of paper starts to be accelerated.

Abstract: An image reading apparatus and a control method thereof are provided. The image reading apparatus includes a communication device configured to perform communication in a preset communication manner, a scanner configured to generate a scan image by scanning a manuscript, and at least one processor configured to control the communication device to transmit use information of the manuscript to an address corresponding to authorship information in response to a preset security pattern including the authorship information being detected in the generated scan image.

Abstract: An image forming apparatus has an improved structure which avoids additional expenses associated with packing a developing unit and allows the developing unit to be stably stored. The image forming apparatus may include a body, a first developing unit accommodating portion and a second developing unit accommodating portion disposed at different positions in the body, and a developing unit which is allowed to be detachably accommodated in the first developing unit accommodating portion and the second developing unit accommodating portion. When accommodated in the first developing unit accommodating portion, the developing unit may be disposed such that it does not perform image formation. When accommodated in the second developing unit accommodating portion, the developing unit may be disposed to perform image formation.

Abstract: Provided are methods of controlling a pop-up, and image forming apparatuses and user terminals that use the control methods. Although an interruption occurs in a user terminal that is able to communicate with the image forming apparatus while an operation is performed in the image forming apparatus, the method may control the interruption without an error.

Abstract: An electronic apparatus includes a job processor to perform a job of the image forming apparatus, a storage unit to store apparatus use information on a user of the image forming apparatus and job performance of the job processor, a determination unit to determine whether the user is changed or not, and a controller to delete the apparatus use information on a previous user if it is determined that the user is changed.

Abstract: A system on chip is provided. The system on chip includes a first memory to store a plurality of encryption keys, a second memory, a third memory to store an encryption key setting value, and a CPU to decrypt encrypted data which is stored in an external non-volatile memory using an encryption key corresponding to the encryption key setting value from among the plurality of encryption keys, to store the decrypted data in the second memory, and to perform a boot using data stored in the second memory. Accordingly, security of a boot operation can be improved.

Abstract: An image forming apparatus and a communication connection method thereof. The communication connection method includes: receiving, by a first image forming apparatus, packet information from a second image forming apparatus; measuring, by the first image forming apparatus, a signal strength of the received packet information; and changing a connection reference strength of the first image forming apparatus based on the measured signal strength.

Abstract: A method of controlling transfer power of an image forming apparatus includes: determining a sensing feedback voltage by applying a set sensing current and measuring a first output voltage during a time period before an image is transferred to a transfer medium; measuring humidity and comparing the measured humidity with a set value; setting a target voltage based on the determined sensing feedback voltage when the measured humidity is equal to or higher than the set value; and adjusting the transfer current to apply the target voltage during a time period in which the image is transferred to the transfer medium.

Abstract: A belt type fixing apparatus includes a fixing belt, a fixing roller disposed to face the fixing belt, a nip forming member that is disposed inside the fixing belt and presses the fixing belt to the fixing roller to form a fixing nip, first and second regulating surfaces that are provided at opposite ends of the nip forming member and restrict an axial movement of the fixing belt, and first and second guide surfaces that are provided inside the fixing belt and guide rotation of the fixing belt. The first regulating surface and the second regulating surface include at least one regulating step portion which is not in contact with one end of the fixing belt, respectively. The first guide surface and the second guide surface include at least one guide step portion which is not in contact with an inner surface of the fixing belt, and the at least one regulating step portion and the guide step portion are formed to be staggered from each other.

Abstract: An image forming apparatus and method thereof are provided. The image forming apparatus includes: a scanner configured to generate a scan image by scanning a document, a processor configured to generate color information of a medium representing content of the document using a predetermined area of the scan image, and to gamma-correct color of an entire area of the scan image based on the color information, and a printer configured to print the gamma-corrected scan image.

Abstract: A sheet supplying apparatus includes an alignment member pivotable to an alignment location for blocking and aligning fore-ends of media contained on a loading table, and a transport-allowing location for allowing a medium picked up by a pickup member to be transported, a cam gear including a gear portion partially including a tooth-omitted portion, and a cam portion for switching the alignment member between the alignment location and the transport-allowing location at first and second rotating locations, a swing arm pivotable about a same axis as a rotation axis of a main gear, and first and second swing gears supported by the swing arm to interlock with the main gear, selectively interlocking with the gear portion according to a rotating direction of the main gear, and rotating the cam gear to the first and second rotating locations.

Abstract: Provided herein is an image forming device including a main body; a consumable unit detachable from and attachable to the main body, and including a CRUM chip; a storage which stores a detection list including information on counterfeit CRUM chips and a conversion serial information list including a plurality of conversion serial information each of which is converted from serial information stored in the CRUM chip according to a plurality of different predetermined rules; and a controller to limit use of the consumable unit, when verifying the consumable unit based on at least one of the detection list and the conversion serial information list fails.

Abstract: An electrophotographic image forming apparatus includes a driving device including a first gear and a second gear, a power transmitter configured to transfer a rotational force applied in one direction from the motor to the first and second gears; a cam configured to set the power transmitter to one of a release mode in which the motor is disconnected from the first and second gears, a first connection mode in which one of the first and second gears is connected to the motor, and a second connection mode in which the other of the first and second gears is connected to the motor; and a clutch configured to selectively transfer the rotational force applied in the one direction from the motor to the cam.

Abstract: A computer-implemented method includes receiving, at a server, device information of a plurality of devices, the device information being collected by an intermediate device, receiving, at the server, administrator information, and registering the plurality of devices to the server based on the received administrator information and the received device information. A system for registering the plurality of devices may implement the computer-implemented method.

Abstract: An image forming apparatus is provided. The image forming apparatus for selectively feeding printing media to an image former of a main body through a cassette and a multipurpose tray includes a tray feeder configured to feed printing media placed in the multipurpose tray, a cassette feeder configured to feed printing media placed in the cassette, a power train configured to transmit power generated from a driving motor, and a power switching unit configured to transmit power transmitted to the power train to the tray feeder or the cassette feeder as the multipurpose tray is moved to a use position or a non-use position.