Bought a refurbished HP500 LaserJet last autumn. Had assumed it printed Duplex like my previous one, but didn't...... o.k. maybe my fault for not thinking to check. So then bought another one, this time Duplex, and kept the original. Problems with fuser leaving broad line on every sheet .... UK seemed rather reticent to replace faulty fuser but eventually did after pressure. Now the replacement fuser is also badly marking each printed sheet. Am giving up on buying refurbished models and going to resolve our office issue by going for a brand new Laserjet printer which, on reflection, I should have done in the first place.