modelCombo.addItem("HP LaserJet IIISi");
modelCombo.addItem("HP PaintJet XL300");
modelCombo.addItem("HP LaserJet 4 Plus / 4M Plus");
modelCombo.addItem("HP LaserJet 5L");
modelCombo.addItem("HP LaserJet 5MP");
modelCombo.addItem("HP LaserJet 5P");