Microcom 814M Programming Manual - Manual (Page 12)

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n = 9: Transmit PRST status.
n = 10: Reset printer
n = 11: Clear printer errors.(function as the clear errors command)
[Notes] When n is out of range, the return value is invalid.
ƒ The printer transmits specified status immediately upon receiving this command
ƒ Even though the printer is not selected using ESC = (select peripheral device), this command
is still effective.
ƒ The printer transmits the status without confirming whether the host computer can receive
data.
ƒ This command is only valid for serial, USB and Ethernet interfaces.
ƒ The reset command is used to clear the error status and the print buffer. Do not attempt to
print while using this command.
n = 2, Transmits printer status defined as below:
Bit Off/On Hex. Description
0 0 0 Fixed to 0
1 1 2 Fixed to 1
2 0/1 00/04 Top cover closed / Top cover open
3 0/1 00/08 No FEED button action / FEED button action
4 1 10 Fixed to 1
5 0/1 0/20 Paper adequate / Paper end
6 0/1 00/40 Normal / Error
7 0 00 Fixed to 0
n=3, Transmits error status defined as below:
Bit Off/On Hex. Description
0 0 00 Fixed to 0
1 1 02 Fixed to 1
2 0 00 Fixed to 0
3 0/1 00/08 Cutter normal / Cutter error
4 1 10 Fixed to 1
5 0/1 00/20 Top cover closed / Top cover open
6 0/1 00/40
Print head temperature normal / Print head
overheated
7 0 00 Fixed to 0
n=4, Transmits paper roll sensor status defined as below:
Bit Off/On Hex. Description
0 0 00 Fixed to 0
1 1 02 Fixed to 1
2 0/1 00/04 Paper adequate / Paper near end
3 0/1 00/08 Paper adequate / Paper near end
4 1 10 Fixed to 1
5 0/1 00/20 Paper adequate / Paper end
6 0/1 00/40 Paper adequate / Paper end
7 0 00 Fixed to 0
n = 5, Transmits printer status defined as below:
Bit Off/On Hex. Description
0 0/1 00/01 Paper adequate / Paper near end
1 1/1 00/02 Top cover closed / Top cover open
2 0/1 00/04 Paper adequate / Paper end
3 0/1 00/08 Print head normal / overheated