I have three HP Printers: LaserJet 6L, DeskJet 895Cse, and OfficeJet 570. All three printers are pulling through more than one piece of paper at a time on a semi-regular basis. The LaserJet 6L is the worst sometimes pulling through 6 and 7 sheets at a time. The OfficeJet is also a problem especially when it is used as a fax machine. I have to hold the remaining pages while the page to be faxed is pulled through. Needless to say, I don't want to be standing at the OfficeJet for the duration of a large fax because of this problem. The DeskJet has done it once or twice but it is not really a problem yet. Any ideas on how to fix these problems are welcome. Thank you.