Lexmark 912 manual Parity, RS-232/RS, RS-422, Polarity

Using printer menus

Menu Item	Purpose	Values
NPA Mode	To specify whether the printer	On	Printer performs NPA processing.
	performs the special processing		If data is not in NPA format, it is
	required for bidirectional		rejected as bad data.
	communication, following the
		Off	Printer does not perform NPA
	conventions defined in the
	Network Printing Alliance (NPA)		processing.
	Protocol.
		Auto*	Printer examines the data to
	Note: Changing this menu item
			determine the format and then
	automatically resets the printer.		processes it appropriately.
Parity	To select the parity for serial input	Even
	and output data frames.
		Odd
		None*
		Ignore
RS-232/RS-	Designates the serial	=RS-232*
422	communication configuration:	=RS-422
	RS232 or RS422.
RS-422	This allows the user to specify the	=Normal*
Polarity	RS-422 polarity if RS-422	=Reverse
	communications is active for the
	serial port.
	Note: Only displayed if the port
	supports an RS-422 configuration,
	For example, the physical port
	hardware supports RS-422.
	Note: Only displayed when the
	RS-232/RS-422 port printer setting
	is set to RS-422.
PCL	To configure the printer so it	On*	Printer examines data on the serial
SmartSwitch	automatically switches to PCL		interface and selects PCL
	emulation when a print job		emulation if the data indicates that
	received through the serial port		is the required printer language.
	requires it, regardless of the
		Off	Printer does not examine the
	default printer language.
			incoming data. The printer uses
			PostScript emulation to process
			the job if PS SmartSwitch is On, or
			uses the default printer language
			specified in the Setup Menu if PS
			SmartSwitch is Off.

Serial Menu

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