Recommended XMP tag for “Scanner”

Question

What XMP tag should I use to store information about the scanner that was used to scan the print?

I don't see anything in the recommended dc, xmp, iptcCore and iptcExt schemas:

http://owl.phy.queensu.ca/~phil/exiftool/TagNames/XMP.html

Answer 1

You are right: there isn't one. I suggest using this custom schema: http://analogexif.sourceforge.net/help/analogexif-xmp.php, because at least you will be consistent with what someone is doing (and enough people doing that is the genesis of many standards).

Specifically, the relevant tags are:

ScannerMaker (Xmp.AnalogExif.ScannerMaker)

String value. Scanner manufacturer, for example Epson.

Scanner (Xmp.AnalogExif.Scanner)

String value. Scanner model including manufacturer, for example Epson Perfection 4490 Photo.

ScannerSoftware (Xmp.AnalogExif.ScannerSoftware)

String value. Scanner software, for example Silverfast.