Printing using an IP address

Perhaps installing a network Firewall can block other computers from accessing the printer IP.

Just a thought...

Edit the permissions for the printer by removing the users or groups that you don't want to be able to print to that printer You can gain access to printers for administration by using either the Printers window on the Start menu or the Find featurein the Active Directory Users And Computers snap-in. The Printers window allows you to perform all administrative tasks
Microsoft Windows 2000 allows you to control printer usage and administration by assigning permissions through the Security tab of the printer Properties dialog box By using printer permissions, you can control who can use a printer. You can also assign printer permissions to control who can administer a printer and the level of administration, which can include managing printers and managing documents.

With an ACL (Access Control List). Essentially ACLs are setup to keep people from using devices they should not be using.

Win2000:
Start --> Settings --> Printers --> Right-click on a network Printer --> Properties --> Security Tab.

Ona printer that you do not have access to, you will not be able to install the printer or print to it, even if you have the ip address. It will return an "access denied."

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If users CAN print to it, check the security tab and make sure the "Everyone" group is removed from the list... or that the list contains only the people who should be able to print to it (or the groups that should be able to print to it).

You can use the WebJet Admin to restrict access to the printer.

ChrisV

The WebJetAdmin answer above is probably your best bet. If you want to configure the jetdirect without using Web JetAdmin, see the following doc from hp.com: http://tinyurl.com/74p2 which points to: http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=bpj05999
(remember to remove any spaces that might show up in the URLs above)

The ability to secure the TCPIP protocol on the jetdircet device depends on the level of firmware the print server is running. If you're at a high enough level of firmware, you can create access control lists that block or allow any packets from sources you identify.

Some of the answers above refer to using W2K's ACL ability on the printer, which DOES NOT stop direct communication to the printer at the protocol level. If a savvy user knows the IP and NO restrictions are enabled on the jetdirect interface, they can print and do other damage as well by changing the jetdirect's configuration.

Good luck.