Confidential

2.CONFIGURATION

2.1Interface

2.1.1RS-232 serial interface

2.1.1.1 Specifications

 

 

Data transmission:

Serial

 

Synchronization:

Asynchronous

 

Handshaking:

DTR/DSR or XON/XOFF control

Signal levels:

MARK = -3 to -15 V:

Logic "1"/ OFF

 

SPACE = +3 to +15 V: Logic "0"/ ON

Baud rate:

4800, 9600, 19200, 38400 bps

 

[bps: bits per second]

 

Data word length:

7 or 8 bits

 

Parity Settings:

None, even, odd

 

Stop bits:

1 or more

 

Connector (printer side):

Female DSUB-25 pin connector

NOTES: The data word length, baud rate, and parity depend on the DIP switch settings. (Refer to Section 3.3.3.)

The stop bit for the printer side is fixed to 1.

2.1.1.2Switching between online and offline

The printer does not have an online/offline switch.

The printer goes offline:

1)Between when the power is turned on (including reset using the interface) and when the printer is ready to receive data.

2)During the self-test.

3)When the cover is open.

4)During paper feeding using the paper feed button.

5)When the printer stops printing due to a paper-end (in cases when an empty paper supply is detected by either paper roll end detector or the paper roll near-end detector with a printing halt feature by ESC c 4).

6)During macro executing standby status.

7)When a temporary abnormality occurs in the power supply voltage.

8)When an error has occurred.

TITLE

TM-T88IIIseries

SHEET

NO.

REVISION

 

EPSON Specification (STANDARD)

B

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Epson T88III Configuration, Interface 1 RS-232 serial interface, Specifications, Switching between online and offline