| 摘要 |
An image forming apparatus and method using a thermal printhead that prints an image by heating a medium are provided. The image forming apparatus includes a data input unit which receives image data to be printed, a control unit which generates a control signal used for driving the thermal printhead based on the received image data, and a thermal printhead which prints an image by heating the medium in response to the control signal. The control unit includes a main controller which comprises a low voltage differential signaling (LVDS) driver that converts a signal input thereto into a low voltage differential signal and outputs the low voltage differential signal, and a sub-controller which comprises an LVDS receiver that receives the low voltage differential signal from the LVDS driver of the main controller. Accordingly, it is possible to reduce the number of data lines required between the main controller and the sub-controller by transmitting data between the main controller and the sub-controller as low voltage differential signals, and enhance the performance of the image forming apparatus while reducing the manufacturing costs and reducing electromagnetic interference.
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