IBM TI5, TM7, TF7, TG5 manual Download Double-Byte Characters, Error Conditions

updated March 18, 2002

Example: 11 half-dots wide (or 5.5 full dots) × 9 high

Defined as:

X'1B26034141FO00080014000200110000081100020014000800F000'

The above statement defines character X'41' as an ‘A’.

Note: The number of data bytes = 2 × dot width (11) = 22 bytes.

Error Conditions:

Flash EPROM load error - Verify the sector was erased before downloading images.

Download Double-Byte Characters

RS-232 Syntax:

ESC ( s n data or X'1B;28;s;n;data'

where:

sThe character set being defined.

0Character set for the thermal station (must be 24x24 matrix)

1Character set for the impact station (must be either 16x16 matrix or 9x16 matrix)

nThe number of characters being downloaded.

data The address of the character being loaded (2 bytes) followed by the character data.

vFor the impact station, there are 32 bytes per character – 2 bytes for each slice (dot wide). The total number of data bytes = n * 34.

vFor the thermal station, there are 72 bytes per character – 3 bytes for each row (dot high). The total number of data bytes = n

*74.

Purpose:

To define a matrix pattern for double-byte characters stored in the flash

EPROM.

Remarks:

vOnce the characters are downloaded to the printer, they will remain valid until the user redefines them. This is true even if you power off the printer.

Appendix C. RS-232 Programming Information 117