Epson 3000's like to do that if a job doesn't finish. Turn it off, unplug it, open your printers under the control panel, delete the job, if that lags, cntrl-alt-delete, open task manager, close spoolsv.exe, replug the 3000, reboot.
Even with that I love my 3000, 1/2 tones darn near as good as the Epson 7880, and I can run film sizes down to 4" x 6" for the padprinter jobs, the thing never clogs, never dries up and just keeps going as long as I keep putting ink into it, I have an almost new spare on the shelf should it ever stop. T-rip (film-maker) works with it like a champ.