Epson ActionPrinter 4000 User Manual - Page 121

User-defined Characters Since superscript and subscript characters are smaller, when you define them you only need two bytes of data for each vertical row of dots. Design grids for these characters are shown in the figure below: Draft pica Letter Quality and Proportional Mixing Print Styles Each of the three user-defined character modes (draft, Letter Quality, and proportional) can be used in combination with most of your printer's various print styles. For instance, emphasized mode works with user-defined characters. The characters you design are enhanced to give this printing effect. Mixing the three types of user-defined character sets is not possible. For example, if you select draft and define some characters, then select proportional and define some more, the first draft character definitions are deleted. Only one type of character definition may be stored in RAM at any time. 4-30 Software and Graphics