IBM TI4 Printer User Manual


 
Width 8 width 32
Height
8 width 32
Remarks:
v Proportional and standard fonts may be used on the same line. If both
types of fonts are used on a line, you would probably use proportional
fonts for the description and resident fonts for the amounts.
v For alignment, a command that will allow right and left alignment on the
same line may be used. This will allow the user to align a column
(decimal point) on the right, and still be left-aligned. (See “Align positions”
on page 139.)
v Once characters are downloaded to the printer, they remain valid until
you redefine them. This is true even if power to the printer is removed.
v Before the characters are defined, the sector of the flash EPROM which
stores this data must be erased. (See “Erase flash EPROM sector” on
page 123.)
v There is no way to redefine one character only. You must redefine a
whole code page.
v If the parameter s, n,orm is out of range, the command is discarded
and the remaining data is processed as print data.
v This command should be sent only when the data buffer is empty. See
the description of bit 6 in “Status byte 2” on page 185.
v ASCII characters 0 through 31 are reserved for EIA-232 functions and
can not be defined.
v See Appendix F, “Proportional fonts,” on page 189 for suggestions about
how to implement proportional fonts.
Limitations:
The memory required for proportional fonts is much greater than the
memory that was required for user-defined fonts. Therefore, when code
page 1 (or 3) is set up as proportional, code page 2 (or 4) is not valid.
You can not set up code page 2 or code page 4 as a proportional font.
To download the font:
1. Store the code page matrix as an MCT value. Use the command X'1B
4D x 55 wb' where:
x X'02' for thermal code page 1, X'17' for thermal code page 3
wb The number of bytes, which is also 1⁄8 the number of dots, in
the width of the widest character. The valid range is 2wb4.
2. Erase the existing character set using the command X'1B 23 04'.
3. Use the Proportional Font command to download the font.
Example:
To define an A to code page 1 when wb is set to 02, enter the following:
X'1B260141410C16'
X'0F001F803FC070E06060C030C030C030C030C030C030'
X'C030FFF0FFF0C030C030C030C030C030C030C030'
X'C030000000000000000000000000000000000000000000'
This command specifies a character width of 12 dots (X'0C') and a
character height of 22 dots (X'16'). Following the width and height are 64
Updated April 2, 2009
Appendix D. EIA-232 programming information 121