The PCL printer is currently the only supported printer in the Driver menu. The PCL Driver dialog box contains information specific to the PCL driver for HP LaserJet-type printers. The text boxes are as follows.
| Text box | Description |
| Symbol Set | Specifies the HP-defined symbol set for a font. (For more information about the symbol sets, see the Hewlett-Packard LaserJet Printer documentation.) The following are the currently defined symbol sets (selected with individual buttons): E.C.M.A. 94 Generic 7 Generic 8 ISO Den/Nor ISO France ISO Germany ISO Italy ISO Spain ISO Sweden/Finland ISO U.K. Kana 8 Line Draw Math 8 Math Symbols Roman 8 Roman Ext. U.S. ASCII U.S. Legal User Defined |
| Mem Usage | An approximation of the amount of memory in the printer that the soft font requires. This is given as the following formula: |
| ((sum of all character widths + 7)>> 3) * height + 63 | |
| Escape String | This is the escape string you send to the printer to select the font. It may contain any PCL commands. You may use the following special sequences to type control characters: |
| \e – escape (ASCII 27, 0x1b) \[ – escape (ASCII 27, 0x1b) \n – line feed (ASCII 10, 0xa) \r – carriage return (ASCII 13, 0xd) \xnn – hexadecimal character code \nnn – octal character code | |
| When the PFM Editor displays an escape string, it converts all non-ASCII printing characters to the hexadecimal format \xnn. |
As in the other dialog boxes, the OK button carries out the changes in the PFM file, and the Cancel button ends the dialog without saving changes.