Epson SQ-2550 User Manual page 145

User-defined Characters
Remember that in Letter Quality and proportional modes, as in
draft, you cannot place dots in adjacent columns. There must
be an empty dot position to the left and right of each dot that
prints.
Superscripts and subscripts
You can also create superscript and subscript user-defined
characters. Just as Letter Quality characters are defined when
the Letter Quality mode is selected, super/subscript characters
are created when either superscript or subscript is selected.
These super/subscript characters can be used either as
superscripts or as subscripts. The characters are exactly the
same; it is only their placement that differs. The difference
between super/subscript characters and regular characters is
that they are smaller. They are a maximum of 16 dots high and
their width in dot columns is shown in the table below:
Mode
Draft
Letter Quality
Proportional
4-30 Software and Graphics
d1
(maximum)
7
23
23
d0 + d1 + d2
(maximum)
12
36
42
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