THERMAL RECEIPT PRINTER
46
following data as normal data. In this case the data buffer position does not change.
If bar code width exceeds the printing area, the printer does not print the bar code but moves
the data buffer position to the left side out of the printing area.
When CODE93 (
m
= 72) is used:
The printer prints an HRI character ( ) as start character at the beginning of the HRI
character string.
The printer prints an HRI character ( ) as a stop character at the end of the HRI character
string.
The printer prints HRI characters (
+ an alphabetic character) as a control character (<00>H
to
<1F>H and <7F>H):
GS r n
[Name] Transmit status
[Format] ASCII GS r
n
Hex 1D 72
n
Decimal 29 114
n
[Range]
n
= 1, 2, 49, 50
[Description] Transmits the status specified by
n
as follows:
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
0,1
Off
00
0
Paper roll near-end sensor: paper adequate.
On
03
3
Paper roll near-end sensor: paper near end.
2,3
Off
00
0
Paper roll end sensor: paper adequate.
On
0C
12
Paper roll near-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 offline and does not execute this
command. Therefore, bits 2 and 3 do not transmit the status of paper end.
Bit Off/On
Hex Decimal Status
for
ASB