Re: How to Find the Model, Product, and Serial Number on Your HP Printer

Dear Mr. Matti Kurkela,

Thanks for your quickly reply. 

I wonder that, which  "<printerhost> [port] " should I put in the shell script command. In my scenario, I plug my HP Printer in these usb 2.0 ports and directly connect with my Computer via usb cable (the printer is not network printer). 

So, may I run it with the command:

$sh pjl-get-serial.sh localhost 9100

or

$sh pjl-get-serial.sh 127.0.0.1 9100

PS: How can I check as if the port 9100 is correct with my printer service?