Abstract: A method of detecting a wrap jam or accordion jam type paper jam and stopping a printing process once a wrap jam or according jam type is detected and an image forming apparatus using the same are provided. The method of detecting the paper jam in the image forming apparatus includes sensing to detect a sheet of paper by using an exit sensor, detecting whether the sheet of paper passes between a transfer roller and an OPC (organic photoconductive) drum for a first time period if the exit sensor does not detect the sheet of paper, and stopping a printing operation of the image forming apparatus if the sheet of paper passes between the transfer roller and the OPC drum for the first time period. Accordingly, it is possible to reduce damage to a fusing roller and increase the lifetime of the fusing roller and other components of the image forming device, if a wrap jam or accordion jam type occurs.

Abstract: An image forming apparatus includes a main controller to output a printing command for each page of printing data if the printing data are received; a printing unit to print the printing data according to the printing command; and a printing controller to maintain the printing unit in a standby state until a printing command of a following page is received, if the printing of the currently printed page is completed in the case in which there exists a following page of the page currently being printed in the printing unit. Accordingly, when the printing command of the following page is received, the time for driving the printing unit again can be shortened.