User-Defined Characters

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:

 

 

dl

 

d0 + dl

+ d2

 

 

 

(maximum)

 

(maximum)

 

 

 

 

 

 

 

Draft

 

7

 

12

 

 

 

 

 

 

 

Letter Quality

 

23

 

36

 

 

 

 

 

 

 

 

Proportional

I

23

I

42

I

 

Since super/subscript characters are smaller, they don’t require as much information when you define them. When you define super/subscript characters, you need only two bytes of data for each vertical row of dots. Design grids for these characters are shown in the figure below.

 

Letter Quality

Draft pica

and Proportional

4-29