摘要:
An image forming apparatus and method are provided. The image forming apparatus includes a communication interface unit that receives print data, an image forming unit that forms an image on a print paper, and video controllers that convert received print data into data processable by the image forming unit. The image forming apparatus includes a selection unit that selects one video controller from among the video controllers, and a control unit that controls the selection unit to selectively provide the received print data to one of the video controllers so that the received print data is processed in the video controllers in parallel by job or page.
摘要:
An image forming apparatus having two or more different rated voltages, the image forming apparatus including a voltage detecting unit, which detects a voltage level of alternating current (AC) power supplied from outside of the image forming apparatus; a control unit, which outputs a control signal according to the detected voltage level; a fusion driving circuit, which controls a number of waveforms and phase of the AC power according to the control signal and outputs the controlled AC power as fusing power; and a fuser including a heat generating body having a negative temperature coefficient (NTC) characteristic, which receives the fusing power and generates resistance heat; and a heating member, which is heated by the heat generated by the resistance heat generating body and fuses an image formed on a printing medium.
摘要:
A unit installable in an apparatus and a method of managing a unit installed in an apparatus are provided. The unit includes a container for a consumable, and a chip mounted to the container. The chip includes a first memory to store data that is accessible and decodable by the apparatus to authenticate the unit. The chip includes a second memory to store recycling prevention information.
摘要:
Provided is an image forming apparatus which includes a photosensitive body on which an electrostatic latent image is formed, a developing unit including toner to develop the electrostatic latent image formed on the photosensitive body, a temperature sensor installed in the developing unit to measure temperature around the toner, a memory unit having information regarding the toner and installed in the developing unit to receive signals from the temperature sensor, and a controller electrically connected to the memory unit to control developing operations based on the temperature measured by the temperature sensor.
摘要:
A medium feeding unit for use in an image forming apparatus includes: a cassette frame to load a printable medium; a guiding member disposed inside the cassette frame to move in a widthwise direction of the printable medium, and to guide the printable medium; and a stopper disposed rotatably to the cassette frame to regulate movement of the guiding member.
摘要:
A printing system and printer with an electronic signature capability, and a method thereof are provided. To print security documents using an electronic signature stored in a portable memory, the printing system of the invention includes a portable memory for storing an electronic signature. A memory interface connects detachably to the portable memory. A printer receives the electronic signature from the memory interface, composes the received electronic signature with print data, and executes a print operation. Accordingly, a stamping or signature process on numerous documents can be facilitated, and excessive stamping or signature execution can be prevented. Moreover, the electronic signature of the invention can be executed on various types of forms or documents.
摘要:
A method of controlling power supply and a printer adopting the same. The power supply controlling method includes the steps of obtaining information of on/off operation times of a power supply switch which supplies and interrupts the supply of power from an external power source to a power supply over a predetermined period, storing the information if a power supply off interval exceeds a predetermined off interval, determining the time of supplying and stopping power of the external power source to the power supply for each period based on the stored on/off operation time information, and connecting and separating a power supply line between the external power source and the power supply according to power supply and interruption times determined for each period. Also, the printer includes a power supply on/off operation information obtaining device generating on and off operation information of the power supply switch, and a power supply control module connecting or separating a power supply line of the external power source to the power supply according to power supply on and off operation time determined by an internal power supply on and off determining program of the power supply on and off operation information. Accordingly, power supply and interruption required for driving the printer can be automatically performed at set times without operation by a user, to thereby automatically reduce waste of power.
摘要:
A developer unit having a memory, and a method of operating an image forming apparatus adopting the same are provided. The developer unit is provided with a developer information module in which various data associated with the management of the developer unit and the developer is stored. Thus, the engine of the image forming apparatus understands the characteristics of the developer by itself by using the developer information module to perform an optimal control suitable for the developer, thereby obtaining a highest printing quality even when the developer is changed. Also, information associated with the developer and the developer unit, e.g. the manufacturing company, recharging company, shelf life, etc. of the developer and the developer unit, can be efficiently managed. Furthermore, the use of inferior goods such as imitations or counterfeits can be prevented.
摘要:
A replaceable unit to participate in an image forming job of an image forming apparatus includes a storage unit to store therein a driving condition corresponding to an operation environment, a detecting unit to monitor the operation environment, a controlling unit to detect a corresponding driving condition from the storage unit if the detecting unit detects the driving environment, and an interface unit to provide a main body of the image forming apparatus with the detected corresponding driving condition. Accordingly, the replaceable unit can be driven under optimum driving conditions.
摘要:
A replaceable unit to participate in an image forming job of an image forming apparatus includes a storage unit to store therein a driving condition corresponding to an operation environment, a detecting unit to monitor the operation environment, a controlling unit to detect a corresponding driving condition from the storage unit if the detecting unit detects the driving environment, and an interface unit to provide a main body of the image forming apparatus with the detected corresponding driving condition. Accordingly, the replaceable unit can be driven under optimum driving conditions.