Epson 2180 - LQ B/W Dot-matrix Printer User's Guide download pdf (Page 180)

A-18 Enhancing Your Printer With Options

Using the C82305

✽

or C82306

✽

serial interface card

To use the C82305

✽

or C82306

✽

serial interface card, see the sections below

regarding the baud rate, handshake timing, and error handling.

For all other data transfer conventions, such as word structure and

communications protocol, see your interface card manual.

Selecting a baud rate

You can select from the following baud rates: 300, 600, 1200, 2400, 4800, 9600,

and 19200 bps (bits per second). To set the baud rate, see the bit-rate selection

table in your interface card manual.

Handshake timing

When the unused area for data in the input buffer drops to 256 bytes, the

printer outputs an X-OFF code or sets the DTR flag to 1 (MARK) to indicate

that it cannot receive data. When the unused area increases to 512 bytes, the

printer outputs an X-ON code or sets the DTR flag to 0 (SPACE) to indicate

that it is ready to receive data.

Error handling

When the printer detects a parity error, the print data is replaced with an

asterisk (

✽

). The printer ignores all other errors, including framing and

overrun errors.

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Epson 2180 - LQ B/W Dot-matrix Printer User's Guide Page 180