Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
Can you verify if your printer is the Hp Designjet z3100 as seen in this picture?
Thank you. Before we try any written repair steps. Can you verify the full and exact error message you are getting?
And when was the last time this printer worked on your mac?
Which software? What specific program are you using when you get that message?
Ok, can you print outside of adobe illustrator? This is an important test as it will tell us if the issue is with the printer itself, or with adobe illustrator.
For instance, try to print from Iphoto or mac mail or even a browser such as safari.. Do you get an error message then?
Ok, so when you printed from mac mail. It actually printed?
And then mail gave you the same error message? Or, when you went back to illustrator you received the same error message?
( This should be just about my last question before we attempt repairs )
Ok, lets try two steps.
Choose System Preferences from the Apple menu.Click Printers & Scanners.In some versions of OS X, this preference is named Print & Scan or Print & Fax.Control-click anywhere in the list of devices on the left, then choose “Reset printing system” from the shortcut menu that appears.
Once complete, lets reinstall the printer using this page
Theres a raster driver, postscript drive, and a HP utility.. Install one of the drivers you need, and also download and install the utility itself.
When the installs complete, you shouldnt have any issues. If you get stuck or have any questions let me know!
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.
You're welcome.. And again, if you run into any issues please let me know, and if all goes well please remember to return and click and submit a 5 star rating to show we were able to solve the issue.