Epson TM-T60/T60P Operator's Manual page 49

ESC u n
Transmit peripheral device status
< 1B >
n = 0
This function is available only for the TM-T60/T80.
Transmits the status current of connector pin 3.
- n
is specified as follows:
n
0
. The transmitted status is only one byte and the data is as
shown in the following table.
- lf nothing is connected, bit 0 of n is always "1".
. When DTR/DSR control is selected, one byte is transmitted
after confirming that the host computer is ready to receive
data (DSR signal is SPACE). When XON/XOFF control is
selected, one byte is transmitted without checking the DSR
signal.
- When DTR/DSR control is selected, if the host computer
is not ready to receive data (DSR is MARK), the printer
waits until it becomes ready.
Not defined.
ESC { n
Set/cancel upside-down character printing
< 1B >
< 75 > < n >
H H
Connector Pin
Drawer-kick connector Pin 3
Bit Function
0 Pin 3 level
1
Undefined
2
Undefined
3 Undefined
4
Unused
5
Undefined
6
Undefined
7
Undefined
< 7B > < n >
H H
- 4 2 -
Value
0 1
"HIGH"
"LOW"
Fixed to 0