Lexmark FORMS 249X Technical Reference page 128

Downloading the Character Data
You can start the character data at any unused memory address greater than
xA413. This example uses xB000.
<x
1B3D
1B00
23
00B0
0007C0
0F1820
10A010
205820
108510
0F01C0
000E30
000000
>
Downloading the Font Descriptor Byte
Send the following descriptor byte information to the printer:
<x
1B3D
0400
23
1080
04
>
For more information about the Font Descriptor Byte, see page 121.
128
Section 7: Downloading Characters and Fonts
- download command prefix
- byte count (low byte first) - x001B, 27
- font ID for 249x printers
- start address - xB000
- column 1
- column 2
- column 3
- column 4
- column 5
- column 6
- column 7
- columns 8 & 9
- download command prefix
- byte count (low byte first) - x0004, 4
- font ID for 249x printers
- start address - x8010
- font descriptor byte - fast draft