public MFUColorA4(ColorPrinter colorPrinter, ScannerA4 scannerA4) { printer = colorPrinter; scanner = scannerA4; }
public MFUColorA4(ColorPrinter colorPrinter) { printer = colorPrinter; }
public ColorXeroxA3() { printer = new ColorPrinter(); scanner = new ScannerA3(); }