Class  RequestingUserName is a printing attribute class, a text
 attribute, that specifies the name of the end user that submitted the print
 job. A requesting user name is an arbitrary string defined by the client. The
 printer does not put the client-specified  RequestingUserName
 attribute into the Print Job's attribute set; rather, the printer puts in a
 JobOriginatingUserName attribute. This means
 that services which support specifying a username with this attribute should
 also report a  JobOriginatingUserName in the job's attribute set. Note
 that many print services may have a way to independently authenticate the
 user name, and so may state support for a requesting user name, but in
 practice will then report the user name authenticated by the service rather
 than that specified via this attribute.
 
 IPP Compatibility: The string value gives the IPP name value. The
 locale gives the IPP natural language. The category name returned by
  getName() gives the IPP attribute name.
extends