From e9e4385117b7399eb147df165a12a6ae07fe529f Mon Sep 17 00:00:00 2001
From: Christoph Heuel <mail@christoph-heuel.net>
Date: Thu, 23 Nov 2017 02:09:28 +0100
Subject: [PATCH] Add Function to Dummy Printer for Clearing Buffer

* If you are using the dummy printer, you may want to use the printer
  again after sending the output to a physical printer.
* This method empties the list of the output buffer
---
 src/escpos/printer.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/escpos/printer.py b/src/escpos/printer.py
index e51eba0..a652b98 100644
--- a/src/escpos/printer.py
+++ b/src/escpos/printer.py
@@ -312,5 +312,13 @@ class Dummy(Escpos):
         """ Get the data that was sent to this printer """
         return b''.join(self._output_list)
 
+    def clear(self):
+        """ Clear the buffer of the printer
+
+        This method can be called if you send the contents to a physical printer
+        and want to use the Dummy printer for new output.
+        """
+        del self._output_list[:]
+
     def close(self):
         pass