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Changing Pitches
In addition to pica, in which there are
LX-90 can also print in other widths, or pitches. It does so by reducing
the distance between pin firings. In the elite mode it prints 12 charac-
ters per inch and in the compressed mode it prints slightly more than
characters per inch. The pattern of the dots is not changed, but the
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horizontal space between them is reduced.
Figure 3-2 shows enlargements of four sample letters in
three pitches. These letters are chosen to show how the LX-90 prints
letters that are uppercase and lowercase, wide and
and without descenders (the bottom dots of the j and y).
Figure 3-2. The three pitches
The dot pattern of each character is carefully designed so that in
pica no dot overlaps another. The reason is that in
printing the pins cannot fire and retract and fire again quickly enough
to print one dot overlapping another.
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T h i s i s p i c a .
T h i s i s e l i t e .
This is compressed.
characters per inch, the
10
each of
narrow,
the LX-90
of
normal
the
and with
high-speed
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