HP Designjet T2500 eMultifunction Printer series - Manual (Page 59)

You may wish to use the same credentials for HP Designjet ePrint & Share and the ePrint Center, so that they
are easier to remember.
Change your printer’s email address
You can change your printer's email address at the HP ePrint Center: http://www.hp.com/go/eprintcenter .
ENWW Change your printer’s email address 49