The CM_OCD_XM_RELLEFT box contains the printer command or commands which move the cursor horizontally in the negative x-direction with respect to the current cursor position. This ability is provided for printers that support different cursor-movement commands. For most printers, the corresponding Units dialog box will contain values that the Universal Printer Driver will use to calculate the arguments for the relative left horizontal cursor-movement command.
The Diconix 150 Plus printer does not support an horizontal cursor-movement command that moves the cursor in the negative x-direction with respect to the current cursor location; therefore, the CM_OCD_XM_RELLEFT box is empty.
For the HP LaserJet IIP printer, the Horizontal Cursor Positioning command (ESC*p-nX) moves the cursor to a new position with respect to the current horizontal-cursor location. The minus sign (-) indicates that the movement is in the negative x-direction relative to the current cursor location. The variable n specifies the distance of movement in 1/300 inch units.
To specify the relative Horizontal Cursor Positioning command, type the following in the CM_OCD_XM_RELLEFT box:
\x1B*p-%dX