GS r n
[Function] | Sending status | ||
[Code] | <1D>H<72>H<n> | ||
[Range] | 1 | n | 2 |
| 49 | n | 50 |
[Outline] | Sends the specified status to the host. | ||
n = 1, 49: Sends the Paper Sensor status.
n = 2, 50: Sends the Drawer
[Caution] | • When the serial interface is used: |
For DTR/DSR control:
The printer sends the status after verifying that the host is ready to receive. If the host is not ready to receive, the printer waits for the host to become ready to receive.
For XON/XOFF control:
The printer sends the status without checking whether the host is ready to receive or busy.
•Because this command is executed when data is mapped in the receive buffer, there may be a delay between receiving the command and sending the status depending on the condition of the receive buffer.
•If ASB (Automatic Status Back) is enabled by GS a, the host must discriminate between the status due to this command and the status due to ASB.
•Paper Sensor status (n = 1, 49)
Bit | Status | Hex. | Decimal | |
0,1 | Paper found by Paper | 00 | 0 | |
Paper not found by Paper | 03 | 3 | ||
| ||||
2,3 | Paper found by Paper end Sensor | 00 | 0 | |
Paper not found by Paper end Sensor | (0C) | (12) | ||
| ||||
4 | Unused (Fixed at 0) | 00 | 0 | |
5 | Undefined | — | — | |
6 | Undefined | — | — | |
7 | Unused (Fixed at 0) | 00 | 0 |
Bits 2, 3: Whenever the Paper end Sensor detects a “paper out” state, the printer goes offline, and the command is not executed. The printer, therefore, never sends a status where bit 2 = “1” or bit 3 = “1”.
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