4.2 Connecting Interface Cables
1. Turn the printer power off.
2. Connect the interface connector in the correct direction.
3. Fix the interface connector using a screwdriver.
4. Connect the other end of the interface cable to the host.
Power switch
Interface connector
CAUTION!
G Confirm the pin arrangement for the interface connector and cable. Wrong wiring
may result in fault, malfunction, or the like of the computer as well as the printer.
G Always hold the connector when connecting or disconnecting the interface cable.
Holding the cable may cause disconnection of the cable core.
G Confirm that the interface cable is connected securely. Poor contact may result in a
failure in communication.
For serial interface cable, use the one with the following connection.
25-pin - 25-pin cable
PC
Signal
Pin
FG
1
TXD
2
RXD
3
CTS
5
DSR
6
SG
7
DTR
20
Interface cable
Printer
Pin
Signal
1
FG
2
TXD
3
RXD
4
RTS
6
DSR
7
SG
20
DTR
— 26 —
9-pin - 25-pin cable
PC
Signal
Pin
RXD
2
TXD
3
DTR
4
SG
5
DSR
6
CTS
8
Printer
Pin
Signal
2
TXD
3
RXD
4
RTS
6
DSR
7
SG
20
DTR