Epson LQ-510 Technical Manual page 112

REV.-A
NOTE: For current loop operation, a data transfer rate greater than 1200 bps cannot be guaranteed.
Handshaking Timing
When the amount of buffer space for input data falls to 256 bytes, the printer indicates that it is "not ready
to receive data" by outputting the X-OFF code and/or REV signal (polarity can be selected by jumper set-
ting). When the available buffer space reaches 528 bytes, the printer indicates that it is "ready to receive
data" by outputting the X-ON code and/or changing the REV signal.
Error Handling
An asterisk (*) is printed when a parity error is detected. Other errors (e.g., "overrun error" and "framing
error") are ignored.
LQ-510
OPTIONAL EQUIPMENT
3-3