Angelo, Cancel any jobs you might have. Then go to the System Printer configuration and modify the printer name. It seems you had a typo when creating the printer. If it doesn't let you remove it and recreate it. Making sure you type in a descriptive name for it (i.e myprinter, no spaces) and make sure print a test page.
Since I installed my printer (HP DeskJet 2500) I am not able to use it .
When I send a job to it, it doesn't work and, in the list of the jobs, I can read (on the field state) this message:
processing since Wed 16 Jul 2014 06:07:59 PM IDT "Unable to locate printer "hostname"."
I tried to understad the reason of this behavior, but I was not able reach this purpose. Please give me an help.
Regards thank you
Angelo