diff --git a/src/escpos/escpos.py b/src/escpos/escpos.py
index 48c06d7..617ff0c 100644
--- a/src/escpos/escpos.py
+++ b/src/escpos/escpos.py
@@ -17,9 +17,24 @@ from __future__ import unicode_literals
 
 import qrcode
 import textwrap
+import six
+
+from .constants import ESC, GS, NUL, QR_ECLEVEL_L, QR_ECLEVEL_M, QR_ECLEVEL_H, QR_ECLEVEL_Q
+from .constants import QR_MODEL_1, QR_MODEL_2, QR_MICRO, BARCODE_TYPES, BARCODE_HEIGHT, BARCODE_WIDTH
+from .constants import TXT_ALIGN_CT, TXT_ALIGN_LT, TXT_ALIGN_RT, BARCODE_FONT_A, BARCODE_FONT_B
+from .constants import BARCODE_TXT_OFF, BARCODE_TXT_BTH, BARCODE_TXT_ABV, BARCODE_TXT_BLW
+from .constants import TXT_HEIGHT, TXT_WIDTH, TXT_SIZE, TXT_NORMAL, TXT_SMOOTH_OFF, TXT_SMOOTH_ON
+from .constants import TXT_FLIP_OFF, TXT_FLIP_ON, TXT_2WIDTH, TXT_2HEIGHT, TXT_4SQUARE
+from .constants import TXT_UNDERL_OFF, TXT_UNDERL_ON, TXT_BOLD_OFF, TXT_BOLD_ON, SET_FONT, TXT_UNDERL2_ON
+from .constants import TXT_INVERT_OFF, TXT_INVERT_ON, LINESPACING_FUNCS, LINESPACING_RESET
+from .constants import PD_0, PD_N12, PD_N25, PD_N37, PD_N50, PD_P50, PD_P37, PD_P25, PD_P12
+from .constants import CD_KICK_DEC_SEQUENCE, CD_KICK_5, CD_KICK_2, PAPER_FULL_CUT, PAPER_PART_CUT
+from .constants import HW_RESET, HW_SELECT, HW_INIT
+from .constants import CTL_VT, CTL_HT, CTL_CR, CTL_FF, CTL_LF, CTL_SET_HT, PANEL_BUTTON_OFF, PANEL_BUTTON_ON
+
+from .exceptions import BarcodeTypeError, BarcodeSizeError, TabPosError
+from .exceptions import CashDrawerError, SetVariableError, BarcodeCodeError
 
-from .constants import *
-from .exceptions import *
 from .magicencode import MagicEncode
 
 from abc import ABCMeta, abstractmethod  # abstract base class support
diff --git a/src/escpos/magicencode.py b/src/escpos/magicencode.py
index 8842c75..9c71ea0 100644
--- a/src/escpos/magicencode.py
+++ b/src/escpos/magicencode.py
@@ -19,10 +19,8 @@ from __future__ import unicode_literals
 
 from builtins import bytes
 from .constants import CODEPAGE_CHANGE
-from .exceptions import CharCodeError, Error
-from .capabilities import get_profile
+from .exceptions import Error
 from .codepages import CodePages
-import copy
 import six