Sharp MZ-800 User Manual

(Format 2)
In
this
format
the
INIT
command
specifies
the
printer
and
the
mode
in
which
the
printer buffer is to be used.
[M] indicates the printer buffer mode.
MO: Direct mode (The buffer is initialized.)
MI: Spool mode (The buffer is initialized.)
M2:
Direct
mode
(If
the
spool
mode
is
active,
this
mode
is
entered
after
any
exist-
ing
contents
of
the
buffer
have
been
printed
out.)
The M1 and M2 options are invalid if no RAM file board is installed,
An
error
will
be
generated
if
image
print
code
OBH
+
0BH’*
is
sent
to
the
MZ-80P5(K)
printer
in
the
spool
mode.
To
recover
from
this
type
of
error,
reenter
the
desired
command
after
executing
INIT
“‘LPT:
M2”,
Printing
can
be
stopped
in
the
spool
mode
by
pressing
the
and
[N]
keys
simultaneously.
* H indicates that the preceding number is in hexadecimal.
{S] specifies the printer type.
SO: MZ-1P16
Sl: MZ-80P5(K)
$2: Printer which converts print data into ASCII codes
$3: Code through
The following codes are converted as shown during execution of PRINT/P state-
ment when SO or SI is specified in the INIT statement.
CHRS ($11) or is converted to $09.
CHRS ($12) or i is converted to SOB.
CHRS ($15) or is converted to $OF.
CHR$ ($16) or is converted to $0C and $0A.
<CR
code>
must
be
specified
when
a
code
other
than
ODH
is
to
be
used
as
the
CR
code.
INIT “LPT: M1, $1”
The
above
example
specifies
that
part
of
the
RAM
file
area
is
to
be
used
as
the
printer
buffer
and
sets
the
printer
buffer
spool
mode.
The
printer
to
be
used
is
an
MZ-80P5(K).
* The printer buffer
When data is output to the printer, the computer waits until all data has been printed
before going on to do other processing. However, since the speed of data printout
is much slower than the computer's processing speed, the computer spends a great
amount of time simply waiting for the printer to become ready. However, if data can
be output to a special holding memory for temporary storage, and that memory will
automatically forward the data to the printer as it becomes ready, the computer will
not have to wait and can be used for other tasks while the printer is printing. Such
a special memory is referred to as a printer buffer.
With the MZ-800, part of the memory in the RAM file (MZ-IR18] option can be
used as a printer buffer. Printer buffer operation is enabled when MI (the spool mode)
is specified with format 2 of the INIT command, and is disabled when MO or M2
(the direct mode) is specified.
6-38

Sharp MZ-800 Specifications

General

Brand	Sharp
Model	MZ-800
Category	Desktop
Language	English