Cannot set Officejet 4500 G510n-z hostname [ Edited ]

[joejarvis]

I am using an Officejet 4500 G510n-z printer (model number CN547A) with firmware version MWM2FN0944AR via several Ubuntu linux computers.  I have picked a hostname for the printer and configured my DNS server to resolve that name to the printer's IP.  I also configured my router's DHCP server to assign the same IP to the printer every time and try to assign it the hostname I chose.  But the printer refuses the hostname suggested by the DHCP server.  So I tried to manually set it.  I cannot find a place to set the printer's hostname anywhere!  I've looked everywhere: manual, printer menu, network settings pages, HP device manager installed on the computers, the forums.  In the mDNS section of its network management page, it says:

If a user-specified host name has not been assigned, the default host  name HPxxxxxx is used, where xxxxxx are the last 6 digits of the LAN  hardware (MAC) address. This option cannot be modified.

So it seems to contemplate a user changing this.  But then says users can't.  Huh?  What am I missing?

[PrintDoc]

Did you look on the Embedded Web Server?  Type the printer's IP into a browser address bar.  You'll figure it out from there.

[joejarvis]

@PrintDoc: Yes, I looked on the embedded server. Sorry if that wasn't clear.  That's what I meant when I used the phrases "network settings page" or "network management page."  It has a section on mDNS, but as I said, the user can't change the hostname.

[PrintDoc]

Hmm, sorry I missed that.  On most HP printers there is a field you can see and change the hostname.  It is on the Network or Networking tab.

I guess yours does not offer this functionality.

Maybe someone else knows???