Compaq 5532 - Manual (Page 111)

IGP/VGL Emulation
111
Host PI
• Disable. The host does not send PI signals.
• Enable. The host sends PI signals. The Data Bit 8 configuration
option must be disabled to transmit the PI line to the printer.
Max PI 16
• Enable. A paper slew of 0-15 will move 1-16 lines.
• Disable. A paper slew of 1-15 will move 1-15 lines. A paper slew of
0 will always move 1 line.