You can print an anti-copy pattern on your printouts. When printing, the letters themselves are not printed and the entire print is screen-toned lightly. The hidden letters appear when photocopied to easily distinguish the original from the copies.

This feature is available when the printer settings are configured as follows:
Paper Type: Plain paper, Letterhead, Recycled, Color, Preprinted, High Quality Plain Paper, or Thick paper
Borderless: Not selected
Quality: Standard
2-Sided Printing: Off, Manual (Long-edge binding), or Manual (Short-edge binding)
Color Correction: Automatic
You can also add your own anti-copy pattern.
On the printer driver's More Options tab, click Watermark Features, and then select anti-copy pattern.
Click Settings to change details such as the size or density of the pattern.
Select other settings on the Main and More Options tabs as necessary, and then click OK.
Click Print.