HP Designjet 130 IP Address

One of the most annoying things I have to deal with is printers' IP addresses. This is especially difficult if the printer doesn't have a screen. Take the HP Designjet 130. It actually has a screen, but cannot represent digits. Not only this, but on top of this, it only has 3 buttons, none of which mention "setup". So, when the computer cannot send jobs to the printer how do you find out what is wrong? Well:

1. load up a browser window and browse to the last known IP address of the printer...
1. no response.
2. ping the IP address which you think it has......
1. no response.
3. hold in the power button (while it's switched on) and press the paper feed button 4 times!!!!!!!
1. it should print some (not sure how many) pages of information. 1st one has IP address.

I do remember wanting to write this down about 7 months ago but I can't find it anywhere. Anyway, here it is.

P.S. 

HP, could you please make the instruction number 3 in the list above more self-explanatory. i.e. have a button or just hold in the power button for setup printouts. 4 button presses is over the top.