161 appendix – Star Micronics SCP700 User Manual
Page 165

161
APPENDIX
4
DTR
OUT
2) X-ON/X-OFF mode
Indicates whether or not the printer can receive data from the host.
This signal is a space, except in the following cases.
1. After reset until communication is possible
2. During test printing
5
SG
—
Signal ground
6
DSR
IN
Signal line that indicates if the host computer can receive data.
SPACE: host can receive
MARK: host cannot receive
In the X-ON/X-OFF or Star mode, the status of this signal is not confirmed.
• The status of this signal is not confirmed.
This signal can be specified as an internal reset signal using Switch 7 of DIP Switch 1
(page 156). MARK of 1ms or longer activates the reset.
7
RTS
OUT
Same as DTR (Pin 4).
8
INIT
IN
This signal can be specified as an internal reset signal using Switch 8 of DIP Switch 1
(page 156). SPACE of 1ms or longer activates the reset.
9
N/C
—
Not connected
Pin
No.
Signal
Name
Direction
Function
Printer Status
Memory SW #4-4
1
0
1. From when the power is turned on or I/F
reset until communication possible
BUSY
BUSY
2. Test printing
BUSY
BUSY
3. Paper feed by paper feed switch
—
BUSY
4. Stop due to no paper
—
BUSY
5. During waiting for switch input in macro
execution
—
BUSY
6. Other errors
—
BUSY
7. Receiving buffer full
BUSY
BUSY