Olivetti PR 4 Programmer's Manual page 74

GS r n
Transmit status
Hexadecimal code: 1D 72 n
n = 1-3; 49-51
Range:
Transmits the status specified by n as follows:
n Function
1, 49 Transmits paper sensor status (same as ESC v)
2, 50 Transmits drawer kick-out connector status (same as ESC u 0)
3, 51 Transmits slip paper status
Notes: - When DTR/DSR control is selected, the printer transmits only one byte after confirming
that the host is ready to receive data (DSR signal is SPACE). If the host computer is not
ready to receive data (DSR signal is MARK), the printer keeps waiting until the host is
ready. When XON/XOFF control is selected, the printer transmits only one byte without
confirming the condition of the DSR signal.
- This command is executed when the data in the receive buffer is developed. Therefore,
there be a time lag between receiving this command and transmitting the status,
depending of the receive buffer status.
- When Auto Status Back (ASB) is enabled using GS a, the status transmitted by GS r and
the ASB status must be differentiated.
- If n is out of the specified range, this command is ignored.
Paper sensor status (n = 1):
Bit Off/On Hex
0 Off 00
On 01
1 Off 00
On 02
2 Off 00
On 04
3 Off 00
On 08
4 On 10
5 Off 00
On 20
6 Off 00
On 40
7 Off 00
4-38
Decimal Function
0 Journal near-end: paper adequate.
1 Journal near-end: paper near end.
0 Receipt near-end sensor: paper adequate.
2 Receipt near-end sensor: paper near end.
0 Journal sensor: paper present.
4 Journal sensor: paper not present.
0 Receipt sensor: paper present.
8 Receipt sensor: paper not present.
16 Not used. Fixed to Off.
0 Slip insertion sensor: paper present.
32 Slip insertion sensor: paper not present.
0 Slip ejection sensor: paper present.
64 Slip ejection sensor: paper not present.
0 Not used. Fixed to Off.
Epson TM-U950 Commands