HP (Hewlett-Packard) PJL Photo Scanner User Manual


 
EN Character Descriptor Formats 11-51
Character Descriptor Formats
Character definition formats for PCL Bitmap, Intellifont Scalable
and TrueType Scalable fonts are shown on the following pages.
Note The following notation is used to define the data type of each field in
the character descriptors.
Character Descriptor and Data Format for PCL
Bitmap Fonts
The descriptor of a PCL bitmap character is at least 14 bytes long and
contains information such as the character’s width and height.
The character data is binary (raster) data that identifies the shape of
the character.
Table 11-35 shows the format of the bitmap character descriptor and
data.
Table 11-34 Character Descriptors/Data Continuation Block
(B) : Boolean (0,1)
(UB) : Unsigned Byte (0 . . 255)
(SB) : Signed Byte (-128 . . 127)
(UI) : Unsigned Integer (0 . . 65535)
(SI) : Signed Integer (-32768 . . 32767)
Table 11-35 PCL Bitmap Character Descriptor
and Data Format
Byte 15 (MSB) 8 7 (LSB) 0
0 Format (4) Continuation (0)
2 Descriptor Size (14) Class (1)
4 Orientation Reserved (0)