How the NS5100 compares to Rapidprint and Widmer stamping machines
We have had several NS5100 machines come back, none for warranty, all for compatibility.
The NS5100 is a one-line, left-to-right dot matrix printer.
It prints within 1/4" of the top of the document. This is not adjustable.

Rapidprints, Widmers, and other now discontinued date time stamp machines
including Acroprint and Amano, can print 2 to 3 lines above and below the date and time.
What you see below, you simply cannot get, using a digital (dot-matrix) printer.
Example:

Free Amano NS5100 Owners Manual
Click here to download the NS5100 (.pdf) factory brochure
Click here to download the NS5100 (.pdf) owners manual