Epson CX6500 Reference Manual page 215

To use an image file as a watermark, select BMP. Click Browse to specify the bitmap file you
want to use, then click OK. Type a name for your watermark in the Name text box, then click
Save.
To create a text-based watermark, select Text. Type your text in the Text text box. The
text that you enter will also be used as the watermark name. If you want to change the
watermark name, type a new name in the Name text box, then click Save.
Click OK to return to the Page Layout
menu.
Click Settings. The following dialog box
appears.
Make sure that the appropriate watermark is selected in the Watermark list, then make Color,
Position, Density, Size, Font, Font Style, and Angle settings. For details, see online help. Your
settings are reflected in the display at the left side of the dialog box.
When you finish making settings, click
OK.