diff --git a/src/escpos/escpos.py b/src/escpos/escpos.py
index fbb3618..4dbe08e 100644
--- a/src/escpos/escpos.py
+++ b/src/escpos/escpos.py
@@ -14,7 +14,6 @@ This module contains the abstract base class :py:class:`Escpos`.
 import qrcode
 import textwrap
 import six
-import time
 from re import match as re_match
 
 import barcode
@@ -1174,7 +1173,6 @@ class Escpos(object):
         :rtype: array(integer)
         """
         self._raw(mode)
-        time.sleep(1)
         status = self._read()
         return status