A SERVICE OF

logo

The
Interface
Boards
Handshaking timing
Print buffer area Printer status
Printer output
Vacant area = 256 bytes
Cannot receive input data
Sends X-OFF code or
sets DTR flag to "1"
Vacant area = 528 bytes
Can receive input data
Sends X-ON code or
resets DTR flag to "0"
Error handling
When a parity error is detected, your printer prints an asterisk (*).
All other errors are ignored.
A-10
Appendix