From 8fd05eb02bc78584bde9a55c0919991c81e0fdf0 Mon Sep 17 00:00:00 2001
From: Christoph Heuel <mail@christoph-heuel.net>
Date: Sun, 29 Nov 2015 16:03:56 +0100
Subject: [PATCH] Add flush function

* Flushing the file will cause the driver to flush the cache and print
* the whole buffer.
---
 escpos/printer.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/escpos/printer.py b/escpos/printer.py
index 986d366..fd4e9e8 100644
--- a/escpos/printer.py
+++ b/escpos/printer.py
@@ -176,6 +176,10 @@ class File(Escpos):
         if self.device is None:
             print("Could not open the specified file %s" % self.devfile)
 
+    def flush(self):
+        """Flush printing content"""
+        self.device.flush()
+
 
     def _raw(self, msg):
         """ Print any command sent in raw format """