In doublestrike, the
MPS
1200 prints the entire line
and
then
returns to
print
it a second time.
You
probably
didn't
notice,
but
on
the second pass the
paper
is
rolled
up
very
slightly so that the
dots
print
just
below
those
from
the first pass.
The
names are slightly misleading because
both
features actually
darken
the
characters
by
printing
them
twice.
The
difference
is
in
the
way
the
second
printing
is done.
To
see the difference,
try
the
following
program
and
watch
the
print
head
as
the
program
runs.
1
I)
op
en
1 ,
4,
7
21)
pt'int#l,
cht'$
(27)
"E";
"Double
stt'ike"
31:)
pt'int#1,cht'$(27)
"G";
"Double
stt'ike
and
emphasized"
4')
pt'int#1,cht'$(27)
"F";cht'$(27)
"H";
"Neithet'"
5()
c
10se1
Your
result will
look
like this:
Double
strike
Double
strike
and
eaphasized
Nei
thet'
Now
you
know
why
combining
both
methods
produces such dark
print. In emphasized doubles trike, each letter
is
printed four times.
Emphasized
and
doublestrike
both
produce
a higher quality print,
but
they
take considerably
more
time
to print.
They
also take a toll
on
your
printer
ribbon.
For
these reasons,
most
people use
them
only
for headlines
and
occasional
words
that need emphasis.
SPECIAL
EFFECTS
Perhaps
you
think
we've
covered a lot
of
special effects already,
but
the
MPS
1200 still has quite a few
more
to come. In this section
we'll
cover
italics, underlining, reverse print,
as
well
as
superscripts
and
subscripts.
Except
for reverse print, all
of
these features can be
combined
with
the
print
width
and
print
density features
we've
discussed already
in
this chapter.
Together
they
produce
over
200
varieties
of
print
styles!
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