HP LaserJet 5100 network printer

In admin mode, you need to add the client to printer permissions

You must be logged on as an administrator or a member of the Administrators group.

To assign this user right, follow these steps:
1. Click Start, click Run, type gpedit.msc, and then click OK.
2. Click Computer Configuration, click Windows Settings, click Security Settings, click Local Policies, and then click User Rights Assignment.