Do you have a laser printer or an inkjet printer? Laser printers are less likely to have such problems (although I have an inkjet printer, which, on rare occasions, will print out blank pages while I'm trying to print out a manuscript to double-check editing). If you do have an inkjet printer, and continue to have the same problem, I would suggest that you get a laser printer (they're much more expensive, I know, but I think the price is worth handling the problem). I hope you can resolve this problem.