HP PCL/PJL reference - PCL 5 Comparison Guide

2-68 Printer-Specific Differences ENWW
Limitations
The following limitations apply to Format 16 Font Headers for bitmap
fonts:
• The Font Type field for Format 16 bitmap fonts must be set to
3. This is the case for 1-byte as well as 2-byte bitmap fonts.
First Code and Last Code fields need to be set.
• Format 16 optional data segments are ignored for bitmap
fonts. These include the galley character segment, vertical
substitution character segment, typeface string segment, and
vertical rotation segment.
• Vertical rotated printing (character text path direction
command,
?&c-1T) is not available for bitmap fonts.