HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part I

11-22 Soft Font Creation EN
Height (UI)
Bitmap Font - Specifies the design height of the font in quarter-dots
(radix dots). This value, converted to points, is used as the height
characteristic value of the font. A PCL point is (0.01389) inch.
It combines with Height Extended to specify the design height of
the font in 1024
th
-dot (fonts designed at 300 dpi).
For example, a 10 point font at 300 dpi has a height of 166
quarter-dots (radix dots) (1200 quarter dots/inch, inch/point)
as calculated:
The remainder 0.667 is converted back to dots and then to
1024
th
-dot for a value of 170 1024
th
-dot for the Height Extended field
(similar to that shown in the example for Pitch, above).
Intellifont Scalable - Specifies the master design height of the font in
points. A typical value for this field is 2000.
TrueType Scalable - Set the Height field to zero.
xHeight (UI)
Bitmap Font - Specifies the height of the lower case “x” in
quarter-dots (radix dots).
Scalable Fonts - Specifies the distance from the baseline to the
lower case “x” height in design units.
1
72
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1
72
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