User`s manual

9–5Epson FX Emulation
Epson Character Sets
Epson printers use two character sets. One is the IBM Graphics Code Page
437. The other set is unique to Epson. The Epson character set is basically
the ASCII character set with the upper, non–ASCII set defined as italics, and
the usually unprintable codes reassigned as international characters. In the
LG06 and LG12 printer, the Epson italic character set prints underlined. (See
Figure 9–1.)
Figure 9–1. Epson Character Set
The international characters in 00–1F and 80–9F appear when you invoke
control code ESC I 1. Normally, these characters are either blank or control
codes. The implementation is that the control codes hide the non–italic
international characters, even in hex 00 to 1F, and DEL. DEL conceals the
non–italic slashed zero.