Toshiba B-EP Series Interface Specification page 345

Explanation
(1) Type of writable character
Up to 43 types of writable character sets can be stored. However, the maximum number
of characters varies depending on the writable character size and number of characters
because of the limited memory capacity.
For writable character types 41 to 43, each writable character size is fixed.
If any type of writable character sets out of the range is specified, an error occurs.
When aa is set to 44, an error does not occur. However, writable characters are not
stored.
When any writable character type of 52 to 55 is specified, it is invalid. However, an error
does not occur, instead a blank is printed.
(2) Character code
Up to 224 characters can be stored per character set.
characters are 40 types × 224 characters = 8960 characters. It varies depending on the
writable character size and the number of characters because of the limited memory
capacity.
For character sets from 41 to 43, a character code consisting of 1 byte is stored.
However, when the character code is read, F0H is added to the upper digit is added to
the upper digit, and consists of 2 bytes. In this case, up to 188 characters can be stored
per character set.
(3) Reserved area
When Sj is set to any value other than 0 to 2, an error occurs.
(4) Each parameter
Top
offset
Char.
height
Reference
point
Left
offset
CHAPTER 5 TPCL-LE MODE (INTERFACE COMMANDS)
Char. width
Character-to-character spacing/
proportional spacing
5-175
B-EP Series
The maximum number of
Base line
Reference point
of next char.