You need to give us just a little more info:
1. How is your PC connected to the printer? (Ethernet, LPT Cable, USB/USB 2.0, other?)
2. What model printer is it?
3. What OS are you using on your PC? (Vista, XP Home/Pro, 98, unix etc)
4. What drivers are you using - the latest, or those supplied with the printer?
5. What has happened recently to the PC just before the printer stopped printing?
6. You said the pritner is working fine, yet you can't print - how did you test that the printer is working fine?
Cheers, and hopefully we'll hear from you soon

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