Lineas para Impresion

[JoaoM]

Grabé esta macro en excel para impresion
de hoja

Sub Macro10()
'
Application.PrintCommunication = False
With ActiveSheet.PageSetup
.PrintTitleRows = ""
.PrintTitleColumns = ""
End With
Application.PrintCommunication = True
ActiveSheet.PageSetup.PrintArea = ""
Application.PrintCommunication = False
With ActiveSheet.PageSetup
.LeftHeader = ""
.CenterHeader = ""
.RightHeader = ""
.LeftFooter = ""
.CenterFooter = ""
.RightFooter = ""
.LeftMargin = Application.InchesToPoints(0.7)
.RightMargin = Application.InchesToPoints(0.7)
.TopMargin = Application.InchesToPoints(0.75)
.BottomMargin = Application.InchesToPoints(0.75)
.HeaderMargin = Application.InchesToPoints(0.3)
.FooterMargin = Application.InchesToPoints(0.3)
.PrintHeadings = False
.PrintGridlines = False
.PrintComments = xlPrintNoComments
.PrintQuality = 300
.CenterHorizontally = False
.CenterVertically = False
.Orientation = xlLandscape
.Draft = False
.PaperSize = xlPaperLetter
.FirstPageNumber = xlAutomatic
.Order = xlDownThenOver
.BlackAndWhite = False
.Zoom = False
.FitToPagesWide = 1
.FitToPagesTall = False
.PrintErrors = xlPrintErrorsDisplayed
.OddAndEvenPagesHeaderFooter = False
.DifferentFirstPageHeaderFooter = False
.ScaleWithDocHeaderFooter = True
.AlignMarginsHeaderFooter = False
.EvenPage.LeftHeader.Text = ""
.EvenPage.CenterHeader.Text = ""
.EvenPage.RightHeader.Text = ""
.EvenPage.LeftFooter.Text = ""
.EvenPage.CenterFooter.Text = ""
.EvenPage.RightFooter.Text = ""
.FirstPage.LeftHeader.Text = ""
.FirstPage.CenterHeader.Text = ""
.FirstPage.RightHeader.Text = ""
.FirstPage.LeftFooter.Text = ""
.FirstPage.CenterFooter.Text = ""
.FirstPage.RightFooter.Text = ""
End With
Application.PrintCommunication = True
ActiveWindow.SelectedSheets.PrintOut Copies:=1, Collate:=True, IgnorePrintAreas:=False
End Sub

Mi pregunta: ¿Que validad tiene las lineas que terminan en "" y False?
Puedo eliminar todas las que terminan en "" y False? o ¿hacen falta en futuro?
Necesito una exposicion basica sobre eso
Gracias