We are trying to print a large format 11 X 18 document to the 5000. It is a client project done in Illustrator. It won't print any where. Error message is 79.00. This is the message from our teacher. I have seen the 79.00 error before. I feel certain that it is not a hardware issue alone. I think it has to do with the graphics. Since I'm not familiar with Illustrator, do you have any helpful ideas?