Okay, unplugged it and tried it again. It prints out a demo page. I really delved into some troubleshooting today. It seems that when I print a certain document from a certain computer it will give the symptoms above. So maybe my issue isn't with the printer at all but maybe a setting int he computer? It's a Mac by the way.
Is it just that one document on that one computer? If so, what kind of document and how big is the document? It could be that the document is too big for the printer to effectively handle. I run into this on occasion with my LaserJet 6MP. Since it is a laser printer, it need to load the WHOLE document into the printers memory in order to print it. I believe that Ink Jet printers can do partial loads as they can effectively stop the page in mid printing, unlike a laser printer. When this happens to my laserjet, I have to power it off for a minute or so and then power it back on. Sometimes then it might print that file...but if it is truly too big, then I might have to switch to my inkjet.
As to it only being a problem with the Mac, it might be due to the Mac making use of postscript printing rather than PCL.