Running Lightroom 5.3 on iMac under Mavericks 10.9.1 printing to Epson Stylus Pro 3800 using printer driver version 9.17. Print Module cell size set to 10.5 in x 13.5 in. Print is ~ 10.25 in x 13.25 in. Never had this problem with Mountain Lion. Don't know if problem is with Apple, Epson or Lightroom but a solution would save a lot of wasted paper and ink. Thanks for any help.