11-30 Soft Font Creation EN
First Code (UI)
First Code specifies the character code of the first printable character
in the font. This value is between 0 and 255 inclusive. The Space
Character may be printable and will print an image if one is defined,
otherwise a Space control code is executed. Currently, PCL 5
LaserJet printers use the Font Type field to determine the first and
last codes of the symbol set, as shown below:
Last Code / Number of Characters (UI)
Bound Font: Specifies the last code in the font. This value may be
greater than the last code of the symbol set as implied by the font
type because there may be components of compound characters
that are not part of the symbol set but must be downloaded. The
printable codes are implied by the font type (refer to first code
described above).
Unbound Font: For an unbound font (type 10 or 11), this field
specifies the maximum number of characters that can be down-
loaded into the font.
Pitch Extended (UB)
Bitmap Font - This is an addition to the Pitch field which extends the
pitch an extra eight bits. The value of this field is in font design units.
For example, a 17 pitch font designed at 300 dpi has a Pitch field of
70 (17.5 dots, or 17.1429 cpi) and a Pitch Extended field of 150
(0.1465 dots additional, which adds to 17.6465 dots, or 17.0005
pitch).
An example for calculating the Pitch and Pitch Extended fields is
provided in the Pitch field description, above.
Table 11-22
Font Type First Code../..Last Code
0 32/127
1 32/127 - 160/255
2 0/255
10 Set to 0 (for unbound font)
11 Set to 0 (for unbound font)
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