title: How to print barcode and QR code using a dot matrix print? (EPSON TM-U220)
body: <p>I have a <a href="https://en.wikipedia.org/wiki/Dot_matrix_printer" rel="nofollow noreferrer">dot matrix printer</a> capable of 180 dpi (EPSON TM-U220) and a C# WPF application for billing. It must print a ticket with a barcode and a QR code. I am using <a href="https://zxingnet.codeplex.com/" rel="nofollow noreferrer">zxing</a> to generate a barcode and a QR code and I just print it using <a href="https://msdn.microsoft.com/es-es/library/system.windows.controls.printdialog%28v=vs.110%29.aspx" rel="nofollow noreferrer">printDialog</a>.</p>
  <p>The QR code and barcode are not readable using the scanner, unless they are printed with a very big size. Is there a way to print readable barcodes and QR codes using a dot matrix printer?</p>