Thanks Gemini02,
Step 3 worked resetting (disconnecting the power) to the printer because I was unable to turn the printer off with the power button. The printer worked for a while but is now doing the same thing. The only thing that has happened since it started working again is that my daughter printed (over the network) from her Macbook. The item she sent to the printer printed but now I have the same error message again.
I Tried resetting the power again but it didn't fix the problem in fact I also got a message that said don't shut the printer down by disconnecting the power.
Any more suggestions???