HP printer Display Hack
HP printer Display Hack
ghost | 11012 Reads | Ok, this is my first article/tutorial, so don't expect it to be super great. I was just googling random stuff the other day and i found a very interesting hack that is GREAT for a little Urban Defacement in your school's computer lab.
OBJECTIVE… Change the display of the network printer in the computer lab.
How It is Done. Ok, I dont know if this will work on anything but HP printers because that is all they have at my school.
Step One….
Go to START.CONTROL PANEL.PRINTERS AND FAXES. right click the printer you want to hack, and select properties. Click on the 'ports' tab. Scroll down untill you see the checked box. There should be an ip address there. REMEMBER THIS ADDRESS!!
Step Two…
Run cmd and type "Telnet [printer ip address] 9100"
you should then get a telnet prompt. type in @PJL RDYMSG DISPLAY="some text here" press enter then ^] (the escape character)
Do not worry if you cant see anything when you type in the @PJL… part: Remember that you are using telnet.
I did this little trick at my school and made the printer say "REMOTE ERROR: SYSTEM HACKED" and when the teacher saw it, she really freaked out. SOOO FUNNY
This will not change the actual performance of the printer, it will only change the display message. If you mess up, or forget to type in 9100 (means you will connect to port 23) it will just print whatever you type in when you press enter.
Anyway, good luck and happy hacking!!
ghost 17 years ago
i was going to do that to the printer at my school but then i got kicked off the network permanently… maybe il do it to my home printer and change it to "no credit. please insert cojn(s)"
Ayr4 17 years ago
I tried this on my school today, but i got a a login prompt. I tried several usernames, but i coulnt enter a password:/ But cool that it works tho:P
ghost 17 years ago
Great stuff! Real funny stuff i'll try it next week can't wait too see the look on trhe victims faces :-D
ghost 17 years ago
wont work with me home computer… it uses a usb port >.< nice article though works nice at UAB (T3h college ive been at for the week) t3h ITs thought it was hilarious:happy:
ghost 17 years ago
thanks for the /n tip bouncer. I did not even think about trying someting like that!!