Epson EPL-7500 User Manual - Page 82
RS232., You can, the vacant
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SelecType Options Use this option to set the data transfer rate (baud) for the serial interface. The baud rate is measured in bits per second (bps). See your computer manual and software documentation for the proper setting. MARK OR NONE* SPACE OR NONE PARITY ODD PARITY EVEN When this option is set to space or none, or mark or none, parity checking is disabled. The parity bit, if used, provides a basic form of error detection. See your computer manual and software documentation for the proper setting. XON/XOFF* DTR XON/XOFF + DTR This option is available only with SERIAL RS232. You can select serial communication from two options, the XON/XOFF communication protocols or the DTR (Data Terminal Ready) signal levels. When the vacant area for data in the input buffer drops to 128 bytes, the printer outputs an XOFF code indicating that it cannot receive more data. Once the vacant area for data in the buffer recovers to 256 bytes, the printer outputs an XON code or sets the DTR flag to high (SPACE) indicating that it is again ready to receive data. 3 - 1 8 SelecType