Lexmark W820 User Manual

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Robust XON
Purpose:
To determine whether the printer communicates availability to the computer.
Values:
This menu item only applies to the serial port if Serial Protocol is set to XON/XOFF.
RS-232/RS-422
Purpose:
To specify the type of serial communication.
Values:
Note: Selecting RS-422 automatically sets Serial Protocol to XON/XOFF.
RS-422 Polarity
Purpose:
To establish the behavior of the positive and negative signals when using RS-422 serial
communication.
Values:
Off* Printer waits to receive data from the computer.
On Printer sends a continuous stream of XONs to the host computer to indicate that the serial
port is ready to receive more data.
RS-232*
RS-422
Normal* Uses default definition of one and zero.
Reverse Reverses the definition of one and zero, thereby allowing a positive connection to a host
computer negative terminal without changing the physical cable.
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Lexmark W820 Specifications

General

Brand	Lexmark
Model	W820
Category	Printer
Language	English