Epson A794-D100 - Manual (Page 103)

A794 Owner’s Guide Chapter 6: Programming Information
March 1999 97
Transmit Status
Transmits the status specified by n. This is a batch mode command which transmits the
response after all prior data in the receive buffer has been processed. There may be a
time lag between the printer receiving this command and transmitting the response,
depending on the receive buffer status.
When DTR/DSR RS232C communications handshaking control is selected, the printer
transmits the one byte response only when the host signal DSR indicates it is ready to
receive data.
When XON/XOFF RS232C communications handshaking control is selected, the printer
transmits the one byte response regardless of the host signal DSR.
When Auto Status Back (ASB) is enabled using the Enable/Disable Automatic Status
Back command (1D 61), the status transmitted by this command (Transmit Status) and
the ASB status must be differentiated according to the information found in
Recognizing Data from the Printer, (in the Real Time Commands section in this
document).
ASCII GS r n
Hexadecimal 1D 72 n
Decimal 29 114 n
Value of n 1, 49 = printer status
2, 50 = cash drawer status
4, 52 = Flash memory User Sector status
The status bytes to be transmitted are described in the following two tables.
Printer Status (n = 1 or n = 49)
Bit
Off/On Hex Decimal Status for Transmit Status
0 Off
On 00
01 0
1 Paper present.
Paper exhausted.
1 Off
On 00
02 0
2 Cover closed.
Cover open.
2 Off
On 00
04 0
4 Paper present.
Paper exhausted.
3 - - - Undefined
4 Off 00 0 Not used. Fixed to off.
5 - - - Undefined
6 - - - Undefined
7 Off 00 0 Not used. Fixed to off.