FarPoint.Web.Spread.SmartPrintRulesCollection rules = new FarPoint.Web.Spread.SmartPrintRulesCollection();
FarPoint.Web.Spread.PrintInfo pi = new FarPoint.Web.Spread.PrintInfo();
rules.Add(new FarPoint.Web.Spread.LandscapeRule(FarPoint.Web.Spread.ResetOption.None));
rules.Add(new FarPoint.Web.Spread.ScaleRule(FarPoint.Web.Spread.ResetOption.None, 1, 2, 0.5f));
rules.Add(new FarPoint.Web.Spread.BestFitColumnRule(FarPoint.Web.Spread.ResetOption.None));
pi.SmartPrintRules = rules;
FpSpread1.ActiveSheetView.PrintInfo = pi;