Data bits number, Stop bits number, Xon/xoff protoc. selection – Compuprint 6314 User Manual
Page 66: 3 data bits number, 4 stop bits number, 5 xon/xoff protoc. selection
Compuprint 6314/6414 - User Manual
3.11.3 Data Bits Number
This item allows the selection of the number of data bits: 7 or 8 data bits.
Press Enter function key to enter in the DATA BIT sub-menu. Press Scroll function key to scroll
through the various items of this function and confirm with Enter function key:
- 8*: the number of data bits is set to 8.
- 7: the number of data bits is set to 7.
3.11.4 Stop Bits Number
This item allows the selection of the number of stop bits: 1 or 2 stop bits.
Press Enter function key to enter in the STOP BIT sub-menu. Press Scroll function key to scroll
through the various items of this function and confirm with Enter function key:
- 1*: the number of stop bits is 1.
- 2: the number of stop bits is 2.
3.11.5 Xon/Xoff Protoc. Selection
This item allows the selection of the handshaking protocol for the serial interface. The selections are
as follows:
- DISABLED*: the selection of the XON/XOFF protocol is disabled.
- Xon / Xoff+DTR: the flow control is performed using the DTR and XON/XOFF protocols.
- Xon / Xoff ONLY: the flow control is performed using only the XON/XOFF protocols.
NOTE!
The printer controls the flow of communication from the host by turning the transmission on and off. In some situations,
such as when the buffer is full or the timing of signals is too slow or too fast, the printer will tell the host to stop
transmission by sending an XOFF character. An XOFF character is sent when the number of empty bytes in the buffer
is less than or equal to 25 percent of the buffer size. If the host keeps sending data after an XOFF is sent, the printer
firmware will continue to send an XOFF for every 16 characters received. When cleared, the printer will resume
receiving data (XON). The data does not have any End of Text codes; XON / XOFF is a non-block protocol.
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