Epson FX-80 User Manual page 211

Can you see the white stars against the blackness of outer space?
This design also shows how the use of symmetry can increase your
output. Unfortunately, this figure is about as large as you can print,
given the current set.,.up and the memory limitaions of most small
microcomputers.
But isn't there a way to print this kind of figure without such a
heavy drain on computer memory? Sure enough, there is, but you
must be willing to forgo the mirror-image effect of the above program
and be prepared for an agonizingly slow program. We don't mean to
be less than enthusiastic; we just want to be sure you understand the
trade-offs.
With that as an introduction, Figure 15-10 lists a program which
will allow you to print patterns that fill up an entire page, even in
Quadruple Density!
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