HP PCL 5 Reference Manual page 185

TrueType scalable fonts are described in detail in the document, True
Type Font Files. (Refer to Related Documents, located in the front of
this manual, for information on how to obtain this document.)
Note
The documents, Intellifont Scalable Typeface Format and True Type
Font Files do not contain descriptions of scalable PCL fonts. Instead,
they contain descriptions of files from which PCL fonts can be built.
EN
Introduction 11-3