Epson DFX-8000 User Manual - Page 206
MARK to indicate that it, code or sets - error codes
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interface Boards Selecting a baud rate The range of baud rate settings for the #8143 interface depends on whether your printer's input buffer is on or off. You can select baud rates from 75 to 19,200 bps (bits per second). When you set the baud rate, use the bit rate selection table for printers with buffers in the #8143 interface manual. Handshake timing When the vacant area for data in the input buffer &ps to 512 bytes, the printer outputs an$O~ code or sets the DTR flag to '1" (MARK) to indicate that it ¬ raceive data. When the vacant area for data in the buffer increases to 784 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, it prints an asterisk ( * ). The printer ignores all other errors, including framing and overrun errors. 5-40 Using the Printer Options