When transforming the SCS data stream to Advanced Function Presentation data stream, the IGCCDEFNT parameter is used to print the DBCS data. When the spooled file is created as SCS, it contains SO/SI (shift out / shift in) characters to identify the double-byte data. When the printer writer is printing a spooled file, a font change to the DBCS coded font replaces the SO in the AFP data stream. When the SI is encountered in the data stream, a font change is placed in the data stream to change the font back to the previous SBCS font.