HP 4 FAMILY - Manual (Page 104)

Table 2-13. Bitmap Resolution Data Segment
Byte 15 (MSB) 8 7 (LSB) 0
x + 0 Segment Identifier (’BR’)
x + 2
x + 4 Segment Size (4)
x + 6 X Resolution
x + 8 Y Resolution
The decimal equivalent for the ’BR’ mneumonic is 16978.
X Resolution (unsigned long integer)
This fields specifies the resolution of the font in the X
dimension in dots per inch.
Y Resolution (unsigned long integer)
This fields specifies the resolution of the font in the Y
dimension in dots per inch.
If the specified combination is not supported by the printer,
the font will be invalidated. In the HP LaserJet 4V,
supported combinations are (X Resolution=300,Y
Resolution=300) and (X Resolution=600,Y Resolution=600).
Character Definition The Character Descriptor and Data command
( ?( s # W [character descriptor and data] ) is used to
download character data blocks to the printer. Format 4 is
used to download character descriptors and data for bitmap
characters. This command is described in detail in the PCL
5 Printer Language Technical Reference Manual.
2-68 Printer-Specific Differences