Hacking Network Printers - nice loong article

[mouser]

Hacking Network Printers
(Mostly HP JetDirects, but a little info on the Ricoh Savins)
By Adrian "Irongeek" Crenshaw

http://www.irongeek.com/i.php?page=security/networkprinterhacking

Hack a printer you say, what kind of toner have you been smoking, Irongeek? Well, I’m here to tell you, there’s more that can be done with a printer to compromise network security than one might realize. In the olden days a printer may not have been much of a concern other than the threat from folks dumpster diving for hard copies of the documents that were printed from it, but many modern printers come network aware with embedded Operating Systems, storage and full IP stacks. This article will attempt to point out some of the more interesting things that can be done with a network based printer to make it reveal information about its users, owners and the network it's part of.

[f0dder]

Hm, not going to read the article (lack of time etc.), but it sounds like something you really want to consider if you're running a LAN where malicious users might connect (school, office, ...)

[mouser]

author has put up video of his presentation of this article:
http://www.irongeek.com/i.php?page=videos/notacon2006printerhacking

[Edvard]

Yep, we got a Xerox 555 Document Centre in the office and it has all that.  Good thing we're behind a firewall...