If the printer is of type OPOS, this field contains the escape commands (ESC/POS) that the printer requires to print italic text.
Each escape command consists of a series of byte values (0 to 255). Each byte needs to be wrapped into brackets, e.g. <27><33><0>. These values should be found in the documentation for the printer.
If the printer is of type WinPrinter this field contains the font description to use for the text. The format of the font description is [NAME];[SIZE];[STYLE] where NAME can be any Windows Font (e.g. Arial, Calibri etc.), SIZE is the size of the font in points and STYLE can be any of the standard font styles (Normal, Bold, Italic, Strikeout, and Underline). Example: Calibri;8.5;Italic