摘要:
Provided is a multi-function printer (MFP) supporting Wi-Fi Direct. The MFP includes a print engine to perform a printing operation, a first wireless interface to connect the MFP to an access point (AP) of an intrastructured network, a second wireless interface to connect the MFP to an external wireless terminal in a Wi-Fi Direct, a soft AP to allow the MFP to perform as an AP when the MFP is Wi-Fi Direct connected, and a dynamic host configuration protocol (DHCP) server unit allocating an internet protocol (IP) address to the wireless device that is Wi-Fi Direct connected to the MFP, where the MFP is simultaneously connected to an AP of the infrastructured network and an external wireless terminal via the first wireless interface and the second wireless interface by using one channel.
摘要:
A method for setting a wireless LAN is provided, which includes receiving a packet, which informs a user that a WPS (Wi-Fi Protected Setup) button of an access point is operated, from the access point; activating a button provided in an image forming apparatus as a WPS button; selecting a button activated as the WPS button; and if the button activated as the WPS button is selected, constructing a wireless network with the access point.
摘要:
A heater (114) of a thermal inkjet printhead is disclosed. The heater is formed of tantalum aluminum oxynitride (Ta-Al-ON), wherein the tantalum aluminum oxynitride is formed of about 30 to about 60 atomic% tantalum, about 10 to about 30 atomic% aluminum, about 5 to about 30 atomic% oxygen, and about 5 to about 30 atomic% nitrogen.
摘要:
A head chip (300) usable in an image forming apparatus, the head chip (300) includes a nozzle layer (330) having a nozzle (333) to discharge ink onto a recording medium, a substrate layer (310) having an ink supplying slit (311) provided to be parallel with the nozzle layer (330) to supply the nozzle (333) with the ink, and a reinforcing bridge (313) provided along an extending direction of the ink supplying slit (311) and blocks at least one region of the ink supplying slit (311).
摘要:
An access device and method for preventing transmission of copyrighted contents to an external network and a method for the same. The access device includes a packet-header analyzer (310) analyzing a header of a packet (400) received from a home network device, a copyrighted-content sensor (340) detecting whether the packet (400) includes copyrighted content as a result of the analysis, an address converter (320) for converting a packet source IP address (420) into an IP address supported by the external network if a packet destination address (430) is an external network address as a result of the analysis, a mapping-table generator (350) generating a mapping table for managing a mapping a relationship between the packet source IP address (420) and the converted IP address, and a packet transmitter (330) transmitting the packet (400) to the IP address supported by the external network and discarding the packet (400) to block transmission of the copyrighted content to the external network if the copyrighted-content sensor (340) detects that the packet (400) includes the copyrighted content.
摘要:
A method of managing security of an image forming apparatus that supports a P 2 P connection based on a signal intensity includes: measuring an intensity of a signal transmitted from an external wireless device by the image forming apparatus; and controlling an access of the wireless device by the image forming apparatus based on the measured signal intensity.
摘要:
An apparatus and/or system implements a method for storing and reproducing contents received through broadcast signals, where the method of managing content includes reconstructing a broadcast signal received from a broadcasting company, transmitting a content ID and predetermined authentication information to the broadcasting company, the content ID used to discriminate content contained in the broadcast signal, receiving content management information including a content key corresponding to the content ID from the broadcasting company, encrypting the content using the content key, and storing the encrypted content in a content storage apparatus.
摘要:
An inkjet printhead and a method of manufacturing the printhead. The inkjet printhead includes a substrate through which an ink supply passage is formed, a chamber plate stacked on the substrate having an ink chamber filled with ink supplied through the ink supply passage and heating resistors to heat the ink formed in the ink chamber, a nozzle plate formed on the chamber plate and through which a plurality of nozzles through which ink is ejected are formed, and a water repellent layer formed on the nozzle plate, wherein portions of a covalent bond formed by reaction between the material forming the nozzle plate and a hydrolysis material used to form the water repellent layer are discontinuously formed.
摘要:
An inkjet printhead is provided. The inkjet printhead includes: a substrate (110) through which an ink feed hole (111) is formed to supply ink; a chamber layer (120) formed on the substrate and including a plurality of ink chambers (122) which are filled with ink supplied from the ink feed hole; a nozzle layer (130) formed on the chamber layer and including a plurality of nozzles (132) through which ink is ejected; and a plurality of support walls (150) formed between the substrate and the nozzle layer to support the substrate and the nozzle layer.
摘要:
An inkjet printhead is provided. The inkjet printhead includes: a substrate (110) through which an ink feed hole (111) is formed to supply ink; a chamber layer (120) formed on the substrate and including a plurality of ink chambers (122) which are filled with ink supplied from the ink feed hole; a nozzle layer (130) formed on the chamber layer and including a plurality of nozzles (132) through which ink is ejected; and a plurality of support walls (150) formed between the substrate and the nozzle layer to support the substrate and the nozzle layer.