uses 
  Printers; 

procedure PrintGrid(sGrid: TStringGrid; sTitle: string); 
var 
  X1, X2: Integer; 
  Y1, Y2: Integer; 
  TmpI: Integer; 
  F: Integer; 
  TR: TRect; 
begin 
  Printer.Title := sTitle; 
  Printer.BeginDoc; 
  Printer.Canvas.Pen.Color  := 0; 
  Printer.Canvas.Font.Name  := 'Times New Roman'; 
  Printer.Canvas.Font.Size  := 12; 
  Printer.Canvas.Font.Style := [fsBold, fsUnderline];
  Printer.Canvas.TextOut(0, 100, Printer.Title); 
  for F := 1 to sGrid.ColCount - 1 do  
  begin
    X1 := 0; 
    for TmpI := 1 to (F - 1) do 
      X1 := X1 + 5 * (sGrid.ColWidths[TmpI]); 
    Y1 := 300; 
    X2 := 0; 
    for TmpI := 1 to F do 
      X2 := X2 + 5 * (sGrid.ColWidths[TmpI]); 
    Y2 := 450; 
    TR := Rect(X1, Y1, X2 - 30, Y2); 
    Printer.Canvas.Font.Style := [fsBold]; 
    Printer.Canvas.Font.Size := 7; 
    Printer.Canvas.TextRect(TR, X1 + 50, 350, sGrid.Cells[F, 0]); 
    Printer.Canvas.Font.Style := []; 
    for TmpI := 1 to sGrid.RowCount - 1 do  
    begin 
      Y1 := 150 * TmpI + 300; 
      Y2 := 150 * (TmpI + 1) + 300; 
      TR := Rect(X1, Y1, X2 - 30, Y2); 
      Printer.Canvas.TextRect(TR, X1 + 50, Y1 + 50, sGrid.Cells[F, TmpI]); 
    end; 
  end; 
  Printer.EndDoc; 
end; 


//Examplem, Beispiel: 

procedure TForm1.Button1Click(Sender: TObject); 
begin 
  PrintGrid(StringGrid1, 'Print Stringgrid'); 
end;