Serial I/O Submenu
89
Stop Bits
Sets the number of stop bits in the serial data word. Either one or two stop bits
can be selected. The setting must match the corresponding stop bit setting in
the host computer. The default is one stop bit.
Parity
Set for odd parity, even parity, or no parity. The setting must match the
corresponding parity setting in the host computer. The default is no parity.
8th Bit
If 8 bits per byte is selected under Data Bits above, use this parameter to
determine how the 8th bit is to be used. If this bit is to be ignored, set the
parameter to Unused. If the bit is to be used, set the parameter to Data. Data
is the default, used for 8-bit characters.
Protocol
The printer and host computer must establish common signals, understood by
both units, for indicating when to send new data and when to stop sending
data.
The eight protocols are:
•
Ready/Busy (default)
•
Xon/Xoff
The six Block Mode protocols:
•
Enq/Ack (Enquiry/Acknowledge)
•
Etx/Ack (End of Text/Acknowledge )
•
Etx/Ack/Nak (End of Text/Acknowledge/Neg. Acknowledge )
•
Ack/Nak (Acknowledge/Negative Acknowledge )
•
Xon/off/Etx/Ack (XON/XOFF/End of Text/Acknowledge )
•
Xon/off/Enq/Ack (XON/XOFF/Enquiry/Acknowledge)
Status Enquiry
When this parameter is enabled, the host may send an enquiry packet to the
printer requesting status. The printer will send back a 1 byte packet denoting
the status of the printer. If this option is set to OFF (the default), no packet will
be sent back. The Status Enquiry feature may be enabled in conjunction with
any other protocol. When enabled and the host sends an ENQ character, the
printer responds by sending a printer status byte. The status byte is designed
to be a printable code and is the only printable code the printer can transmit.
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Страница 150: ...150 Chapter 7 Diagnosing Problems ...
Страница 158: ...158 Appendix B ...
Страница 170: ...170 Appendix C Performance Limitations ...
Страница 176: ...176 Appendix D Stacker Operation ...
Страница 196: ...196 Appendix G Software License Agreement ...
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