Star Micronics CBM-820 manual GS r n, Sends Status

GS r n

[Function]	Sends Status
[Code]	ASCII			GS	r	n
	Hexadecimal			1D	72	n
	Decimal			29	114	n
[Range]	1	n	2, 49	n	50

[Outline]	This command sends the status, depending on setting of n.
		n		Description
		1, 49	Sends the paper sensor status. (Same as ESC v)
		2, 50	Sends the status of the drawer kick connector. (Same as ESC u 0)
[Caution]	•	The following tables describe the status sent.
	•	If DTR/DSR control is selected and the memory switch 4-5 is set to 0, the printer sends only 1
		byte after confirming that the host is ready to receive (the DSR signal status is Space).
		If the host is not ready (the DSR signal status is Mark), the printer will wait until it will be ready
		to receive. If XON/XOFF control is selected or the memory switch 4-5 is set to 1, the printer
		will send 1 byte without confirming the DSR signal status.
	•	Since this command is executed at deployment of the reception buffer, there may be a delay
		between command reception and status sending, depending on the reception buffer
		condition.
	•	If ASB is enabled by GS a, it is necessary to distinguish the status by this command from that
		of ASB. See “6. Interface” for how to distinguish them.
	•	If n goes beyond the range, this command will be ignored.

n = 1, 49 : Paper sensor status

Bit	Status	Hexadecimal	Decimal
0	BOF sensor with paper	00	0
	BOF sensor without paper	01	1
1	TOF sensor with paper	00	0
	TOF sensor without paper	02	2
2	Undefined	–	–
3	Undefined	–	–
4	Unused	00	0
5	Undefined	–	–
6	Undefined	–	–
7	Unused	00	0

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