Character EnhancementsThe HP LaserJet 4PJ printer supports PCL pseudo-bold and pseudo-italic character enhancements. These enhancements can be applied to the internal MS-Mincho and MS-Gothic fonts. They can also be applied to a TrueType soft font if a suitable “Character Enhancement” Segment is downloaded with the font header.
The enhancements are selected using PCL font selection commands. The pseudo-italic enhancement can be selected using the Style command. The pseudo-bold enhancement can be selected using the Stroke Weight command. The bold levels which can be applied to the internal MS-Mincho and MS-Gothic fonts are Semi Bold, Demi Bold, Bold, and Extra Bold. For example, to select a 10-point, Extra Bold, Italic, MS-Mincho font, use the following PCL command:
?(19K?(s1p10v1s4b28752T
In the above command, Italics style (1s) and Extra Bold weight (4b) are selected. Since there is not an Extra Bold Italic MS-Mincho font resident in the printer, pseudo-italics and pseudo-bolding algorithms are applied to characters printed from the regular MS-Mincho font.
If a soft font is selected using the “Font Selection by ID” command (e.g. ?(#X ), the font is selected without any character enhancements applied. To select a soft font by ID with character enhancements, first select the font by ID, then select the desired attributes. For example, assume a soft font is downloaded with ID = 1 and a Character Enhancement Segment indicating that pseudo-bold and pseudo-italics character enhancements can be applied. The following command can be used to select that font with those enhancements:
?(1X?(s1s3B
Other font effects, such as character shadowing, strike- through, and gray-shading can be accomplished using the print model.
2-52 Printer-Specific Differences