Star Micronics FVP-10U Hardware Manual page 54

Pin number Signal name
7 SG
- N.C
0 DTR
- N.C
 INIT
13
25
Direction
− Signal ground
− Not used
(1) STAR line mode
a) DTR mode
Indicates whether the printer can receive data from the host.
SPACE: The printer can receive data.
MARK: The printer cannot receive data.
b) X-ON/X-OFF mode
Always set to SPACE, except during the following conditions
1. After a reset, until communication is enabled
. During test printing
(2) ESC/POS mode
a) DTR/DSR mode
Indicates whether the printer can receive data from the host.
SPACE: The printer can receive data.
MARK: The printer cannot receive data.
The conditions that result in a BUSY state change according to the DIP switch set-
OUT
tings.
Printer status
1. A fter power-on reset or interface reset but
before communication is enabled
. Test printing
3. Cover open
. Paper feeding through the paper feed switch
4. Stopped because paper ran out
5. Waiting for switch input for macro execution
. Other error
7. Receive buffer full
b) X-ON/X-OFF mode
Always set to SPACE, except during the following conditions
1. After a reset, until communication is enabled
. During test printing
Not used
1) DIPSW3-8 = OFF
Status of this signal is not checked.
IN 2) DIPSW3-8 = ON
Functions as an external reset signal. A space signal with a pulse width of 1 ms or
longer resets the printer.
Function
1
14
D-sub 25 pin
-  -
DIP SW -
OFF ON
BUSY BUSY
BUSY BUSY
– BUSY
– BUSY
– BUSY
– BUSY
– BUSY
BUSY BUSY