Bored? Got a Networked HP printer around?

[Garp]

http://www.hackszine.com/blog/archiv..._hp_print.html

A lesser-known feature of the HP Printer Job Language (HPPJL) command set is that you can change the ready message" from "READY" to whatever you like. Yaakov wrote a Perl script that will change the message for you, and he also came up with the clever "INSERT COIN" replacement. Very nice.

You can think up your own funny, confusing or scary messages. My personal favorite is "INSERT COIN" which fits perfectly on the small LCDs. You can even sit in sight of the printer and change the message while watching the reaction of your victim. Don't be surprised, though, if a large fraction don't even notice. I was quite surprised myself but, it appears, some people don't look at what is in front of them.

I haven't been able to test yet (no HP printer here), but if I'm reading the code right, you can actually do this right from the command line using telnet. Just telnet to port 9100 and type in the following:

\e%-12345X\@PJL JOB
\@PJL RDYMSG DISPLAY="MESSAGE HERE"
\@PJL EOJ
\e%-12345X

We've had "INSERT COIN", "OMGWTFBBQ", "YEAH, RIGHT" and "TGI Friday" on our printer so far this week..

[Flibster]

Thats this afternoon sorted then.

Cool.

Simon/~Flibster

[Daz]

Frickin Awesome

[Joe 90]

ooo oh so tempting - wonder if someone would say anything...

get some students saying that the printer is asking for coins :|


*edit*
noooo
HP Laserjet 4050s are not supported

[Feek]

Originally Posted by |Show|

ooo oh so tempting - wonder if someone would say anything...

get some students saying that the printer is asking for coins :|


*edit*
noooo
HP Laserjet 4050s are not supported

Arse.

Read the first post, teletted to our printer to try it, did the INSERT COIN thing and nothing happened.

Came back, read down the thread. We've got a 4050

[Daz]

I've just done it on a 4050 and it worked fine :/

It now thinks 'DAZ RAWKS'

I'm using the perl script though, not the telnet method.

[Feek]

Don't think I can use a perl script here

[Feek]

Can you compile it into something I can use, two versions one to set it to INSERT COIN and the other to reset back to READY on 10.119.1.22 ?

[Belmit]

All our network printers are HP. Tee hee!

[Daz]

Originally Posted by Feek

Can you compile it into something I can use, two versions one to set it to INSERT COIN and the other to reset back to READY on 10.119.1.22 ?

Quick and dirty Windows binary:

http://dwuk.net/misc/hpsetdisp.zip

Unzip, and execute:

hpsetdisp.exe 10.0.0.1 "MESSAGE"

Remember the quotes, and obviously use the correct IP