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Preliminary support of pos 'line display' printing through Epson printer

This commit is contained in:
TAHRI Ahmed 2016-11-15 16:24:44 +01:00
parent 46305faf30
commit ceb61a78a5
2 changed files with 15 additions and 0 deletions
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5
src/escpos/constants.py
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@ -64,6 +64,11 @@ _PANEL_BUTTON = lambda n: ESC + b'c5' + six.int2byte(n)
PANEL_BUTTON_ON = _PANEL_BUTTON(0) # enable all panel buttons PANEL_BUTTON_ON = _PANEL_BUTTON(0) # enable all panel buttons
PANEL_BUTTON_OFF = _PANEL_BUTTON(1) # disable all panel buttons PANEL_BUTTON_OFF = _PANEL_BUTTON(1) # disable all panel buttons
# Line display printing
LINE_DISPLAY_OPEN = ESC + b'\x3d\x02'
LINE_DISPLAY_CLEAR = ESC + b'\x40'
LINE_DISPLAY_CLOSE = ESC + b'\x3d\x01'
# Sheet modes # Sheet modes
SHEET_SLIP_MODE = ESC + b'\x63\x30\x04' # slip paper SHEET_SLIP_MODE = ESC + b'\x63\x30\x04' # slip paper
SHEET_ROLL_MODE = ESC + b'\x63\x30\x01' # paper roll SHEET_ROLL_MODE = ESC + b'\x63\x30\x01' # paper roll

10
src/escpos/escpos.py
View File

@ -585,6 +585,16 @@ class Escpos(object):
except: except:
raise CashDrawerError() raise CashDrawerError()
def linedisplay(self, text):
"""
Display text on line display thought your epson printer
:param text: Text to display
"""
self._raw(LINE_DISPLAY_OPEN)
self._raw(LINE_DISPLAY_CLEAR)
self.text(text)
self._raw(LINE_DISPLAY_CLOSE)
def hw(self, hw): def hw(self, hw):
""" Hardware operations """ Hardware operations