A data byte received by the printer
can
be used
either to locate a character
in
the in-use table or
to
change the contents
of
the table.
5.4.2
Eight-Bit
Environment
Configuration codes
39,
3A,. and 38 define
an
8-bit environment. Eight bits define a 256-charac-
ter table. Columns 0 and 1 and columns 8 and 9
are
reserved for control characters. Columns 2
through 7 and columns
10
through
15
contain
printable characters. The
area
defined by columns
2 through 7
is
called the
GL
(G-Ieftl character set.
Columns
10
through
15
define the
GR
(G-rightl
character
set:.
See
Figure 5-3.
The Gothic character set
is
the default character
set and consists
of
ASCII characters, United
States version, or a national language version
as
determined by configuration. Other character sets
are
available
as
options and, when installed,
can
be
selected
as
particular character sets
(GO,
G1,
G2,
or G3l.
See
Figure
5-4.
Tables 5-12,5-13, and 5-14 summarize the escape
sequences and control characters
for
selection
of
character sets.
'----
CO
LUMN
S
--I.~r"---
ROWS
------I
1.765
4 3
2~1
800
BITS
7 0 0
BITS
4321
0000
0
0001
1
0010
2
0011 3
0100
4
0101 5
0110
6
0111 7
1000
8
1001 9
1010
10
1011
11
1100
12
1101 13
1110
14
1111 15
600
5 0
o
I
r--
-
r--
C
-
r--
0
-
r--
N
-
r--T-
r--R_
r-
0
-
,--L_
'--
-
_S_
r--E_
r--T-
I
I
DATA
BYTE
o 0 0
000
1
o 0 1 1 o 0 o 0
1 o 0 1 o 0 1 o 0 1
1
o o 1 o o 1 o o o
2 3 4
567
8 9
10
11
12 13
14
15
I
- -
_C_
_0_
_N_
_T_
r-R-
GL
r-
0
_
GR
r-L-
r-
s
-
r-
E
-
r--
-
r-T_
I
I
2222627-26
Figure
5-3.
Eight-Bit
Character
Set
Table
5-9
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