Canon LBP251 User Manual page 103

[Add]
Click to create a new watermark. Up to 50 watermarks can be registered.
[Name]
Enter the created watermark name.
[Attributes]/[Alignment]/[Print Style]
Click each tab to specify the text, color, or print position of the watermark. For more information, click [Help]
on the printer driver screen.
LINKS
Basic Printing Operations(P. 70)
Printing Borders(P. 93)
Printing Dates and Page Numbers(P. 94)
Printing
97