Epson 8900 Series - Manual (Page 52)

Character Sets and Global Commands 3-21
Print Barcode Text
Escape sequence: ESC DLE B C text ETX
Hexadecimal: 1B 10 42 43 text 03
This command lets you print a character or string of characters
specified by the variable text. For example, to print the barcode
equivalents of the numerals 0, 1, and 2 from the barcode font set
selected by the Set Barcode Parameters command, enter the sequence
ESC DLE B C 0 1 2 ETX.
Oversize Characters Feature
Using this feature, you can increase the size of your selected font
from 1 times to 127 times the original size. One global command
determines the character size; a second global command prints the
oversize characters.
Set Oversize Character Scale Factor
Escape sequence: ESC DLE C P p1 p2 ETX
Hexadecimal: 1B 10 43 50 p1 p2 03
This command defines the horizontal and vertical scale factors which
determine the size of the characters printed by the Print Oversize
Character command.
The p1 variable is the vertical scale factor (1 byte), from 1 to 127;
the default is 2. The p2 variable is the horizontal scale factor (1 byte),
from 1 to 127; the default is 2. If either variable is set to less than 1
or more than 127, the value defaults to 2.