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(e) The
printer enters
the
"FAULT"
state
when:
(8)
PE
1)
The printer
enters
the
"Paper End" state,
I
However, if
the
printer
enters the select-
ed state,
the
"Paper End" state
is
released
(Le., the
level
of
the
"FAULT"
~gnal
becomes higb) and
the
level
of
the
"FAULT"
signal
changes
back
to
low
after the
printer has
received and printed
data.
J
2)
The
printer
is
in the deselected
state.
3)
An error occurs
in
the
printer
(i.e., when
the
head
carrier overruns).
4)
The "COVER
OPEN"
condition
is detect-
ed.
(a)
This
signal
is
an output signal which
indicates
that
the
paper
is
nearing
its
end.
(b) With the
printer in
the "Paper
End"
state, the
level
of this signal
is
high.
(9) INPUT·BUSY
(a) This signal is an output signal which
indicates
that the printer
is busy.
(b) This signal
is dirferent
(rom the
BUSY
signal
described in
(5) above, in
that its level
be-
comes
high
(printer
busy)
when the
printer
receives data.
(10) +5 V
DC
(a) This
is
a +5 V supply
voltage.
(b) Using this
voltage,
a cunent of
up
to 50 mA
may be provided
to an ext.ernal
device.
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Iii
lit
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