Epson TM-300A Operator's Manual page 40

ESC % n
[Name] Select/cancel user-defined character set.
<1B>H<25>H<n>
[Format]
O n
[Range]
[Description] Selects or cancels the user-defined character set.
Only the lowest bit of
l
When
is selected.
When n = <*******0>B, the user-defined character set
is canceled (and the internal character set is selected.)
n = 0
[Default]
[Reference] ESC &
ESC & s n m [a[p]sXa]m-n+1
[Name] Define user-defined characters
[Format] <1B>H<26>H<s><n><m>[<a><p1><p2>...<psXa>]m-n+1
[Range] s = 2
32 n
0 a
0 a
0 p1...psXa
[Description] Defines user-defined characters ANK character codes.
"s" specifies the number of bytes in vertical direction.
l
"n"
specifies the beginning ASCII code for the definition and
l
"rn " the final code. If only one character is defined, use
The allowable character code range is from ASCII code <20>H
l
to <7E>H.
When receive buffer capacity is 1 Kbyte, the maximum number
of characters is 9, and when receive buffer capacity is 40 bytes,
the maximum number of characters is 44.
When the maximum number of user-defined characters has
l
been defined, redefinition of the defined ASCII codes is possible
but definition of new ASCII codes is impossible.
"a" specifies the number of dots in the horizontal direction.
l
"p"
is the dot data for the characters. The dot pattern is in the
l
horizontal direction from the left side. Any remaining dots on the
right side are blank.
After user-defined characters are defined once, they are avail-
l
able until they are redefined, until ESC @ is executed, until the
printer is reset, or until the power is turned off.
255
n
is valid.
n
= <*******1>B, the user-defined character set
m 126
12 (9X 9 font)
10 (7X 9 font)
255
3 4
n = m.