Brother International TD-4420TN FBPL Command Reference - Page 96
Status Polling and Immediate Commands, Description, Syntax, See Also
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7 Status Polling and Immediate Commands Support RS-232, USB and Ethernet. 7.1 !? Description Obtain the printer status at any time, even in the event of printer error. An inquiry request is solicited by sending an (ASCII 27, escape character) as the beginning control character to the printer. A one-byte character is returned, flagging the printer status. A 0 signifies the printer is ready to print labels. Syntax !? Hex Receive 00 01 02 03 04 05 08 09 0A 0B 0C 0D 10 20 80 Printer Status Normal Head opened Paper Jam Paper Jam and head opened Out of paper Out of paper and head opened Out of ribbon Out of ribbon and head opened Out of ribbon and paper jam Out of ribbon, paper jam and head opened Out of ribbon and out of paper Out of ribbon, out of paper and head opened Pause Printing Other error See Also !S 91
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