Pins And Signal Names - Toshiba 4679 User Manual

11-2. Pins and Signal Names

Pin No. Signal Name
1
2
3
4
5
6
7
8 -19
20
Direction
FG —
TXD OUT
RXD IN
RTS OUT
N.C.
DSR IN
SG
N.C.
DTR OUT
Frame ground
Transmission data
Receive data
Always space
Not connected
Dip switch 2-7 = OFF
(1) STAR Mode
Status of this signal is not checked.
(2) ESC/POS Mode
• In DTR/DSR communication mode
Memory Switch 4-5 = "0":
signal line indicating whether host is
enabled or disabled to receive data is
checked.
Space: Host enabled to receive
Mark: Host disabled to receive
Memory switch 4-5 = 1:
Status of this signal is not checked.
• In X-ON/X-OFF communication mode, status of
this signal is not checked.
Dip switch 2-7 = ON
This is an externally reset signal.
A mark above 1 ms pulse width engages reset.
Signal ground
Not connected
Indicates whether data receive from host is enabled or
disabled.
DTR/DSR Communication Mode
Space when receive is enabled.
Printer status
1. During the period from when
the power is turned on (includ-
ing resetting using the interface)
to when the printer is ready to
receive data.
2. During self printing and dot align-
ment adjustment.
3. When the printer stops printing
due to a paper end or an optional
paper near end.
4. When an error has occurred.
5. When the receive buffer becomes
full.
– 46 –
Function
Memory switch 6-9
0
BUSY
BUSY
BUSY
BUSY
BUSY
1
BUSY
BUSY
—
—
BUSY