39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
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import re # noqa: F401
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import socket # noqa: F401
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import sys # noqa: F401
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from arq import Retry
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async def sent_to_printer(ctx: dict, data: str, address: str, cut_code: str):
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address = "/printer"
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try:
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print("Printing to :", address, "\n", data, "\n")
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with open(address, "w") as printer:
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printer.write(data)
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printer.write("\n")
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print(cut_code)
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printer.write(cut_code)
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except LookupError as e:
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print("Lookup error:", e)
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raise Retry(defer=ctx["job_try"] * 30)
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except FileNotFoundError as e:
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print("File not found error:", e)
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raise Retry(defer=ctx["job_try"] * 30)
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except: # noqa: E722
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print("Unexpected error:", sys.exc_info()[0])
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# retry the job with increasing back-off
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# delays will be 5s, 10s, 15s, 20s
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# after max_tries (default 5) the job will permanently fail
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raise Retry(defer=ctx["job_try"] * 30)
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# GS = "\x1d"
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# PAPER_CUT = GS + "V"
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# # For the printer ESC/POS Reference
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# # https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=87
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# # The m codes are in decimal and can be converted using the following table
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# # https://www.eso.org/~ndelmott/ascii.html
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# # The \x03 in all the following is to feed 3 lines before cut it can be increased or reduced
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# FUNCTION_B_FULL_CUT = "\x41\x03"
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# FUNCTION_B_PARTIAL_CUT = "\x42\x03"
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