Epson STYLUS SCAN 2500 User Manual page 51

You can make the following settings.
Overlapped
Panels
Print cutting
guidelines
If you only want to print a few of the panels without printing the
entire poster, click the panels you don't need, then click OK to
close the Poster Settings dialog box.
Printing a watermark on your document
To print a watermark on your document, use the Watermark
option on the Layout menu, and select from a list of predefined
watermarks.
You can also add your own text-based or image-based
watermarks to the Watermark Name list. Follow these steps.
1. Click the Add/Del button. The following dialog appears.
4-20
Using the Printer Software for Windows
Slightly overlaps the images so that they can be
aligned more precisely.
Prints border lines on the images to guide you when
trimming the pages.