Datamax-O'Neil VMP SERIES AN-16 (Single Byte Character Set Font File Format) - Manual (Page 2)

Version 1.1 HEADER (impact only):
The version 1.1 header fonts are used in the 8i Flash 180 CPS impact printers
The 55 bytes (ALL bytes must be present) within the header are as follows:
4 BYTES May be anything, rewritten internally
3 BYTES Font version number (must be "1.1")
1 BYTE Mod 256 summation of the five character name
5 BYTES Five character name for this font
1 BYTE One character name for this font
1 BYTE Must be 00 for monospace font
Must be 05 for proportional font
2 BYTES, LSB 1st Number of dots wide for monospace font
0xFFFF for proportional font
2 BYTES, LSB 1st Number of dots high
1 BYTE Number of bytes in each row
2 BYTES Number of bytes in each character
1 BYTE Number of added spaces for compressed (impact)
1 BYTE First ASCII character represented in this font
1 BYTE Last ASCII character represented in this font
1 BYTE Dotline to place underline (impact)
1 BYTE USER version number
8 BYTE USER creation date
20 BYTES USER description
Version 1.3 HEADER (thermal and impact):
The 71 bytes (ALL bytes must be present) within the header are as follows:
4 BYTES May be anything, rewritten internally
4 BYTES Font version number (must be "1.3",0x00 terminating NUL)
1 BYTE Mod 256 summation of the five character name
6 BYTES Five character name for this font with 0x00 terminating NUL
Impact:
1 BYTE One character name for this font
1 BYTE Name of PICA pitch font in this set (impact)
1 BYTE Name of ELITE pitch font in this set (impact)
1 BYTE Name of ITALIC PICA pitch font in this set (impact)
1 BYTE Name of ITALIC ELITE pitch font in this set
OR Thermal:
1 BYTE One character name for this font
1 BYTE One character name for this font
1 BYTE One character name for this font
1 BYTE One character name for this font
1 BYTE One character name for this font
Impact AND Thermal:
1 BYTE Must be 00 for monospace font
Must be 05 for proportional font
1 BYTE Must be 01 if this font is to appear on the self test printout
Must be 00 if this font is NOT to appear on the self test printout