TITLE : RP-300/310
Page -83 -
n
Function
1,49 Transmits paper sensor status
2,50 Transmits drawer kick-out connector status
[Details] ·When using a serial interface
·When DTR/DSR control is selected, the printer transmits only 1 byte after
confirming 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 waits until the host is ready.
When XON/XOFF control is selected, the printer transmits only 1 byte
without confirming the condition of the DSR signal.
·This command is executed when the data in the receive buffer is
developed. Therefore, there may be a time lag between receiving this
command and transmitting the status, depending on 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 using
the table in Appendix G.
·The status types to be transmitted are shown below:
Paper sensor status ( n = 1, 49):
Bit Off / On Hex Decimal Status for ASB
Off 00 0 Paper roll near-end sensor: paper adequate.
0,1
On 03 3 Paper roll near-end sensor: paper near end.
Off 00 0 Paper roll end sensor: paper adequate.
2,3
On (0C) (12) Paper roll end sensor: paper near end.
4 Off 00 0 Not used. Fixed to Off.
5,6 - - - Undefined.
7 Off 00 0 Not used. Fixed to Off.
Bits 2 and 3: When the paper end sensor detects a paper end, the printer goes off-line
and does not execute this command. Therefore, bits 2 and 3 do not
transmit the status of paper end.
Drawer kick-out connector status ( n = 2, 50):
Bit Off / On Hex Decimal Function
Off 00 0 Drawer kick-out connector pin 3 is LOW.
0
On 01 1 Drawer kick-out connector pin 3 is HIGH.
1-3 - - - Undefined.
4 Off 00 0 Not used. Fixed to Off.
5,6 - - - Undefined.
7 Off 00 0 Not used. Fixed to Off.
[Reference] DLE EOT, GS a
GS v 0 m xL xH yL yH d1....dk
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