EPSON AcuLaser C3800 User's Guide
To make a bitmap watermark
Before making a custom watermark, you should prepare a bitmap (PICT) file.
For Mac OS X users
1.Open the Print dialog box.
2.Select Printer Settings from the
3.Click Stamp Function.
4. Select the Watermark check box, then click Watermark Settings.
Using the Printer Software with Macintosh 122