HP QMS 1660 - Manual (Page 49)

Emulations
4-17 Printer Configuration
Plotter
Identifies the HP-GL plotter type.
Reverse Image
Determines whether an image is printed in reverse.
Scaling Percent
Identifies the percentage to reduce or enlarge an image.
» Note: To scale plots, select the paper size originally used for the plot
in the Paper Type menu, and then enter the reduction or enlargement
needed to fit the plot on the new page in the Scaling Percent menu. If
necessary, enter new x,y coordinates in the Origin menu to reposition
the plot on the page.
Menu Administration/Emulations/HPGL/Plotter
Choices 7470A, 7475A, 7550A, ColorPro
Default 7550A
Menu Administration/Emulations/HPGL/Reverse Image
Choices On—Print a white image on a black background.
Off—Print a black image on a white background.
Default Off
Menu Administration/Emulations/HPGL/Scaling Percent
Choices 001-150 (1-150%)
Default 100 (100%)