Appendix
D
The
Internal
SW"itches
The
MPS
1200 contains a set
of
switches inside the serial interface
cartridge
that
allows
you
to
control
the
way
the printer behaves.
These
internal switches
determine
the default condition for several
of
the
printer's
features.
Most
of
the features
that
are controlled
by
the
switches can also be
changed
with
BASIC
commands
regardless
of
how
the switches
are set.
REMOVING
THE
INTERFACE
CARTRIDGE
,
The
interface
cartridge
has been
uniquely
designed till'
two
pur-
poses: for simple installation
of
the
optional
parallel
interbce,
and
for quickly
changing
the
internal switches.
WARNING:
Never
remove
the interface cartridge when the
power
is
on.
Doing
so
may
damage
the
printer
and/or
your
COIll-
puter.
The
interface cartridge
is
located on the right side
of
the
printer
(Figure
0-1).
To
access the internal switches, first disconnect the
interface cable.
Then
grasp the
bottom
edge ot' the cartridge and
slide the cartridge
out.
After
changing
the switches,
simply
slide the cartridge back
into
the slot. Be careful
not
to
slam the cartridge
or
force it in any way.
Slide the cartridge in until you feci the cOl1nector
touch
the
plug
inside.
Then
gently,
but
firmly, push the cartridge in the rest
of
the
way
to
secure the connection. H.econl1ect the interface cable and
you're
ready
to
go!
0-1
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