|Your post is ambiguous. Is it printing okay but spewing out a blank page at the end of every document, or is not printing anything and just spewing out blank pages all the time?|
If the latter, the printhead nozzles may be severely blocked with dried-up, sludgy ink. When that happens, fitting new cartridges will make no difference. Try running the nozzle-cleaning utility a few times. If that doesn't clear the blockage, you'll have to try washing the printhead in hot (but not boiling) soapy water.