Appendixes

Interfaces

This printer is connected to a computer and prints according to commands sent from the computer.

There are three types of computer interfaces, and these are connected to devices suited to each type of interface. The printer can also be connected to a computer by the optional Ethernet.

Serial Interface

Specifications

System

Start/stop asynchronous duplex communication

 

 

Signal level

RS-232C

 

 

Baud rate

2400, 4800, 9600, 19200, 38400,57600, 115200bps

 

 

Bit length

7Bit, 8Bit

 

 

Stop bit

1Bit, 2Bit

 

 

Parity

Odd, even, none

 

 

Connector

D-SUB 25PIN

 

 

Signal line and pin arrangement

Pin No.

Signal code

Signal name

Function

 

 

 

 

1

FG

Protective

Protective grounding

 

 

grounding

 

 

 

 

 

2

TXD

Transmitted data

Signal line that transmits data from the

 

 

 

printer to other devices

 

 

 

 

3

RXD

Received data

Signal line that transmits data from other

 

 

 

devices to the printer

 

 

 

 

4

RTS

Transmission

Pull up to +5.4V through 3.3k

 

 

request

 

 

 

 

 

5

NC

------

Not used

 

 

 

 

6

DSR

Data set relay

Signal line that is active when an external

 

 

 

device can interface with the printer

 

 

 

 

7

SGND

Signal line

Shows the ground level of the signal line

 

 

ground

 

 

 

 

 

8-13

NC

------

Not used

 

 

 

 

14

VCC

+5V

(FACTORY USE ONLY )

 

 

 

 

15-19

NC

------

Not used

 

 

 

 

20

DTR

Data terminal

Signal line that is active when an external

 

 

relay

device can interface with the printer

 

 

 

 

21-25

NC

------

Not used

 

 

 

 

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