A method of printing a text with an apparatus using channels is provided. The method includes determining whether print data corresponds to a specified text by determining similarities between channels of print data, and determining a degree of flatness of one of the channels, searching for a boundary area in the print data if the print data is determined to correspond to the specified text, and reducing some of the channels at the boundary area, and compensating for the one of the channels by a density of the reduced channels if the print data is determined to correspond to the specified text.