Xerox N2125 用户指南

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A Page Overlay is a partial document that the driver can 
merge with your print job, producing a printed image that 
includes elements of both the overlay and your 
document. Overlays are most useful for creating such 
things as company letterhead. You can create the 
letterhead in your application as a page overlay, then 
download it and store it in the printer. Whenever you 
want to print a document with the overlay, you just send 
the print job to the printer with the Overlay command, 
and the printer will automatically print the letterhead on 
each page of your document. Page overlays eliminate the 
need to download the same information more than once, 
thus saving transmission time. However, they do use up 
printer memory or disk space.

An overlay differs from a watermark in these respects:

• An overlay can contain graphics and text in any 

number of fonts in any number of sizes and colors. A 
watermark can contain only text of one font, one size 
and one color.

• An overlay is usually on the margins of a page, while a 

watermark is usually in the middle of a page.

• An overlay usually will not obscure any part of the 

document, but a watermark usually will.

• An overlay uses space on the printer's hard disk, but a 

watermark does not.