setop/python-escpos
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Fix LP waste of paper due to auto-flush + flush on close

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This commit is contained in:
belono 2023-09-24 13:37:45 +02:00
parent 0984c93975
commit 86ae775881
2 changed files with 6 additions and 3 deletions
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3
src/escpos/printer/file.py
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@ -99,6 +99,7 @@ class File(Escpos):
if not self._device: if not self._device:
return return
logging.info("Closing File connection to printer %s", self.devfile) logging.info("Closing File connection to printer %s", self.devfile)
self.device.flush() if not self.auto_flush:
self.flush()
self.device.close() self.device.close()
self._device = False self._device = False

6
src/escpos/printer/lp.py
View File

@ -67,11 +67,11 @@ class LP(Escpos):
:param printer_name: CUPS printer name (Optional) :param printer_name: CUPS printer name (Optional)
:param auto_flush: Automatic flush after every _raw() (Optional) :param auto_flush: Automatic flush after every _raw() (Optional)
:type auto_flush: bool :type auto_flush: bool (Defaults False)
""" """
Escpos.__init__(self, *args, **kwargs) Escpos.__init__(self, *args, **kwargs)
self.printer_name = printer_name self.printer_name = printer_name
self.auto_flush = kwargs.get("auto_flush", True) self.auto_flush = kwargs.get("auto_flush", False)
@property @property
def printers(self) -> dict: def printers(self) -> dict:
@ -150,6 +150,8 @@ class LP(Escpos):
if not self._device: if not self._device:
return return
logging.info("Closing LP connection to printer %s", self.printer_name) logging.info("Closing LP connection to printer %s", self.printer_name)
if not self.auto_flush:
self.flush()
self.device.terminate() self.device.terminate()
self._device = False self._device = False