HP PCL 5 Reference Manual page 219

Individually defined bits are shown in the following two tables:
Table 11-27 MSL Symbol Index Character Complement Bits
Table 11-28 Unicode Symbol Index Character Complement Bits
EN
Bit Value
63 0 if font is compatible with standard Latin character
sets (e.g., Roman-8, ISO 8859-1 Latin 1);
1 otherwise.
62 0 if font is compatible with East European Latin
character sets (e.g., ISO 8859-2 Latin 2); 1 otherwise.
61 0 if font contains Turkish character sets
(e.g., ISO 8859/9 Latin 5); 1 otherwise.
34 0 if font has access to the math characters of the
Math-8, PS Math and Ventura Math character sets;
1 otherwise.
33 0 if font has access to the semi-graphic characters of
the PC-8, PC-850, etc. character sets; 1 otherwise.
32 0 if font is compatible with ITC Zapf Dingbats series
100, 200, etc.; 1 otherwise.
2, 1, 0 111 if font is arranged in MSL Symbol Index order.
Bit Value
31 0 if font is compatible with 7-bit ASCII; 1 otherwise.
30 0 if font is compatible with ISO 8859/1 Latin 1 (West
Europe) character sets; 1 otherwise.
29 0 if font is compatible with ISO 8859/2 Latin 2 (East
Europe) character sets; 1 otherwise.
28 0 if font is compatible with Latin 5 (Turkish) character
sets (e.g., ISO 8859/9 Latin 5, PC-Turkish);
1 otherwise.
27 0 if font is compatible with Desktop Publishing
character sets (e.g., Windows 3.1 Latin 1, DeskTop,
MC Text); 1 otherwise.
Font Header Format 11-37