The SEND_CHAR_DESCRIPTOR box contains the command which downloads the
character-descriptor and character-data components for a font.
HP LaserJet IIP
For the HP LaserJet IIP printer, the Character Descriptor and Data command
(ESC(snW) downloads n bytes of character descriptors and character data for
a font.
To specify the Character Descriptor and Data command, type the following in
the SEND_CHAR_DESCRIPTOR box:
\x1B(s%dW